Back key device and handle with multi-segment angle adjustment function

Abstract

The present invention belongs to the technical field of game controllers, and particularly relates to a back key device and a controller with a multi-segment angle adjustment function. Among them, the back key device with a multi-segment angle adjustment function includes a back key, the pressing end of the back key extends out of the back shell of the controller, and at least two positioning holes are provided on the back key. It also includes: a back key seat, which includes a fixed part and a free part, the fixed part is fixed to the back shell of the controller, one end of the free part is a free end, the free end is located between the trigger switch and the pressing end, and the back key is rotatably connected to the free part in a resetable manner; a positioning pin, which is slidably connected to the fixed part, and one end of the positioning pin can be inserted into one of the positioning holes, so that the back key can be switched between a locked state and an unlocked state. The back key of the present invention can achieve a multi-gear adjustment function. In the locked state, the back key is locked and will not trigger the back key, which is particularly suitable for games that do not use the back key. In the unlocked state, the back key rotates and tilts up to a certain height, and the back key function can be used normally.

Description

Technical Field

[0001] The present invention belongs to the technical field of game controllers, and particularly relates to a back key device and a controller with a multi-segment angle adjustment function. Background Art

[0002] Currently, the back keys of game controllers on the market are designed based on ergonomics. When using the controller, considering the usage habits, the back keys are designed at comfortable positions that can be pressed by fingers. Such a design conforms to the habits of users, but it brings the problem that some users' usage habits are prone to accidental touches, and it is very difficult to deliberately change this habit. The current solutions on the market mainly include the following several:

[0003] 1) Increase the pressing force of the back key. The disadvantage is that a relatively large force is required for the finger to trigger when using it;

[0004] 2) Modify the position and shape of the back key. In the design, move the position of the back key away from the finger position when normally holding the controller or make the back key smaller in shape. When using it, the finger needs to make a straightening movement to press. However, it is inconvenient for users who can currently use the back key function normally.

[0005] 3) Set to turn off the back key function in the product software. When it is necessary to turn on the back key function, it needs to be reset on the APP assistant or PC assistant.

[0006] The above methods for solving accidental touches of the back key have a greater impact on the user experience. Especially when some games require the use of the back key, due to different requirements for the back key in different games, due to the problem of usage habits, the above solutions will be particularly inconvenient for some users to use the back key. When playing some games that do not require the use of the back key, it is very inconvenient to set on the APP assistant or PC assistant. Summary of the Invention

[0007] Aiming at the technical problem that the existing methods for solving accidental touches of the back key have a greater impact on the user experience, the purpose of the present invention is to provide a back key device and a controller with a multi-segment angle adjustment function.

[0008] To solve the foregoing technical problem, a first aspect of the present invention provides a back key device with a multi-segment angle adjustment function. The back key device with a multi-segment angle adjustment function includes a back key, and the pressing end of the back key extends out of the back shell of the controller. At least two positioning holes are provided on one side of the back key away from the pressing end;

[0009] The back key device with a multi-segment angle adjustment function further includes:

[0010] A back key base, the back key base comprising a fixed portion and a free portion connected to each other, the fixed portion being fixed to the back shell of the handle, the end of the free portion away from the fixed portion being a free end, the free end being located between the trigger switch and the pressing end, the back key being repositionably connected to the free portion;

[0011] a positioning pin, the positioning pin being slidably connected to the fixing portion, one end of the positioning pin facing the positioning holes and being plugged into one of the positioning holes, so that the back key can be switched between a locked state and an unlocked state;

[0012] When the back button is in a locked state, the inner side surface of the pressing end abuts against the surface of the handle back shell;

[0013] When the back key is in an unlocked state, the inner side surface of the pressing end is at a certain distance from the surface of the back shell of the handle. By pressing the pressing end, the free part is elastically deformed, so that the free end abuts against the trigger switch to realize the back key trigger function.

[0014] Optionally, in the back key device with multi-stage angle adjustment function as described above, among at least two of the positioning holes, one is a locking hole for putting the back key in a locked state, and at least the other is an unlocking hole for putting the back key in an unlocked state, and the arrangement direction from the locking hole to the unlocking hole is opposite to the pressing direction of the pressing end.

[0015] Optionally, in the back key device with multi-stage angle adjustment function as described above, there are at least three positioning holes, one is a locking hole for putting the back key in a locked state, and at least two are unlocking holes for putting the back key in an unlocked state, so that the back key can be switched to several unlocked states with different pressing amplitudes, and the distance between the inner side surface of the pressing end and the surface of the back shell of the handle in each unlocked state is different.

[0016] Optionally, in the back key device with multi-stage angle adjustment function as described above, a paddle is fixedly connected to the positioning pin, and the paddle extends out of the back shell of the handle.

[0017] Optionally, in the back key device with multi-stage angle adjustment function as described above, a avoidance groove is provided on the fixing part, the positioning pin is passed through the avoidance groove and can slide in the avoidance groove, the top of the avoidance groove has a toggle opening, and the paddle extends out of the toggle opening.

[0018] Optionally, in the aforementioned back key device with multi-stage angle adjustment function, the back key device with multi-stage angle adjustment function further includes:

[0019] A reset member provides a reset force for the positioning pin toward the positioning hole.

[0020] Optionally, in the back key device with multi-stage angle adjustment function as described above, one end of the positioning pin is a plug-in portion that is inserted and cooperated with the positioning hole, and the other end of the positioning pin is a pin shaft;

[0021] The reset member is a reset compression spring, and the reset member is sleeved outside the pin shaft.

[0022] Optionally, in the back key device with multi-stage angle adjustment function as described above, the top surface of the avoidance groove is an open structure;

[0023] The back key device with multi-stage angle adjustment function further includes:

[0024] A fitting, the fitting is detachably connected outside the avoidance groove, the fitting is provided with a reset member accommodation groove and a pin hole communicating inside and outside the reset key accommodation groove, and the other end of the positioning pin extends into the pin hole and can extend outside the fitting;

[0025] One end of the reset member is restricted on the pin shaft, and the other end of the reset member is restricted in the reset member accommodation groove.

[0026] Optionally, in the back key device with multi-stage angle adjustment function as described above, the back key and the free portion are rotatably connected in a resetable manner through a fixed shaft and a return torsion spring.

[0027] Optionally, in the back key device with multi-stage angle adjustment function as described above, the back key includes a back key body and a face shell, the back key body is detachably connected to the face shell, and the back key body is rotatably connected to the free portion in a resetable manner.

[0028] Optionally, in the back key device with multi-stage angle adjustment function as described above, the positioning hole is located on the back key body, and the pressing end is located on the face shell.

[0029] To solve the foregoing technical problems, the second aspect of the present invention provides a handle, the handle has a handle back shell, a trigger switch and a back key device, and the back key device adopts the back key device with multi-stage angle adjustment function provided by the first aspect of the present invention.

[0030] Optionally, in the handle as described above, the handle has a circuit board, the circuit board is fixedly connected inside the handle back shell, the fixed portion of the back key is detachably connected to the circuit board, and the trigger switch is arranged on the circuit board.

[0031] The positive and progressive effects of the present invention are:

[0032] 1. Without changing the pressing force of the back key, the back key of the present invention can achieve multiple gears / multi-segment angle adjustment functions. In the locked state, the back key is locked and will not trigger the back key, which is especially suitable for games that do not use the back key. In the unlocked state, the back key rotates and tilts up to a certain height, and the back key function can be used normally.

[0033] 2. The present invention adopts several unlocking state methods, so that the back key can tilt up to a certain height or a higher height. When the back key rotates and tilts up to a certain height, the back key function can be used normally, which is suitable for some users who are not easily accidentally touched by the conventional back key and can not change the user's habits. When the back key rotates and tilts up to a higher other height, the finger needs to stretch forward slightly to press when using the back key function, which is suitable for some users who are easily accidentally touched by the conventional back key and does not change the user's habits much.

[0034] 3. Through the design of the fitting parts, the present invention facilitates the production, assembly and maintenance of the device.

[0035] 4. The back key of the present invention can be disassembled from the front shell to adapt to the curved surface of the grip of different game controllers. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Referring to the accompanying drawings, the disclosure of the present invention will become more apparent. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the figures:

[0037] Figure 1 is a schematic structural diagram of the present invention;

[0038] Figure 2 is Figure 1 a schematic structural diagram after the front shell is disassembled in ;

[0039] Figure 3 is Figure 1 an exploded view of ;

[0040] Figure 4 4A to 4E in are schematic diagrams of the process of the back key switching three states in Embodiment 1 of the present invention;

[0041] Figures 5A to 5C is a state diagram of the back key in three states in Embodiment 1 of the present invention;

[0042] Figure 6 is another exploded view of the structure of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0043] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0044] It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0045] In the description of the present invention, it should be noted that for orientation terms, such as the terms "outer side", "middle section", "inner", "outer", etc., indicating the orientation and position relationship are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention 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 should not be construed as limiting the specific protection scope of the present invention.

[0046] In addition, such terms as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "several" and "a number of" is two or more, unless otherwise specifically defined.

[0047] Refer to Figures 1 to 6 , the present invention provides a back key device with a multi-segment angle adjustment function, and this back key device is applied to a game controller. The back key device includes a back key 10, a back key seat 20, and a positioning pin 30.

[0048] The pressing end 11 of the back key 10 extends out of the back shell 91 of the controller. At least two positioning holes 12 are provided on the side of the back key 10 away from the pressing end 11. The number of the positioning holes 12 can be determined according to actual needs, such as two, three, or more. As Figure 3 and Figure 6 shown, three positioning holes 12 are provided on the side of the back key 10 away from the pressing end 11, which are the positioning hole 121, the positioning hole 122, and the positioning hole 123 from bottom to top respectively.

[0049] The back key base 20 includes a fixed portion 21 and a free portion 22 that are interconnected. The fixed portion 21 and the free portion 22 are preferably made in one piece. The fixed portion 21 is fixed to the handle back shell 91, and the end of the free portion 22 away from the fixed portion 21 is the free end 22a, which is located between the trigger switch 92 and the pressing end 11. The back key 10 is connected to the free portion 22 in a resettable rotation, that is, when the user presses the pressing end 11 of the back key 10 and releases it, the back key 10 will reset to the position when it is not pressed. The back key 10 is preferably connected to the middle position of the free portion 22, so that one side of the connection between the two is the fixed plate 21 and the other side is the free end 22a.

[0050] In the present invention, by adopting the above-designed back key base 20, only the fixed portion 21 is fixed. Since the free portion 22 is not fixed to any device, the free portion 22 forms a cantilever structure with elastic deformation capability. When the user presses the pressing end 11 of the back key 10, since the back key 10 is connected to the free portion 22, it causes the free portion 22 to elastically deform, causing the free end 22a to move in the direction of the pressing.

[0051] The positioning pin 30 is slidably connected to the fixing portion 21. One end of the positioning pin 30 faces the positioning holes 12 and can be plugged into one of the positioning holes 12, so that the back key 10 can be switched between a locked state and an unlocked state. When the back key 10 is in the locked state, the inner side surface of the pressing end 11 abuts against the surface of the handle back shell 91. When the back key 10 is in the unlocked state, the inner side surface of the pressing end 11 is a certain distance away from the surface of the handle back shell 91. By pressing the pressing end 11, the free portion 22 is elastically deformed, causing the free end 22a to abut against the trigger switch 92, realizing the back key triggering function.

[0052] In some embodiments, among the at least two positioning holes 12, one is a locking hole that puts the back key 10 in a locked state, and at least the other is an unlocking hole that puts the back key 10 in an unlocked state. The arrangement direction from the locking hole to the unlocking hole is opposite to the pressing direction of the pressing end 11.

[0053] In this embodiment, there is one locking hole, for example Figure 3 The positioning hole 121 shown. The unlocking hole in the present invention is one or more, for example Figure 3 The positioning holes 122 and 123 are shown. When the pressing direction of the pressing portion 11 is from top to bottom in an arc, the arrangement direction of the positioning holes 121 to 123 is from bottom to top in an arc.

[0054] In actual implementation, one, two or more unlocking holes can be set according to the user's usage habits, so that the pressing end 11 of the back key 10 can be rotated and tilted to form multiple gears to match the user's richer usage habits.

[0055] In some embodiments, there are at least three positioning holes 12, one is a locking hole for putting the back key 10 in a locked state, and at least two are unlocking holes for putting the back key 10 in an unlocked state, so that the back key 10 can be switched to several unlocked states with different pressing amplitudes, and the distance between the inner side surface of the pressing end 11 and the surface of the handle back shell 91 in each unlocked state is different.

[0056] Since there are multiple unlocking holes, the unlocking states in this embodiment are different, so that the height of the pressing end 11 of the back key 10 rotates and tilts to form multiple gears to match the user's more diverse usage habits.

[0057] In some embodiments, reference Figures 1 to 3 、 Figure 6 A paddle 31 is fixedly connected to the positioning pin 30 , and the paddle 31 extends out of the handle back shell 91 .

[0058] When the back key 10 is locked or unlocked, the locating pin 30 can be loosened from the locating holes 12 or inserted into one of the locating holes 12 by toggling the paddle 31 .

[0059] In some embodiments, reference Figures 1 to 3 、 Figure 6 The fixing portion 21 is provided with an avoidance groove 211 , the positioning pin 30 is passed through the avoidance groove 211 and can slide in the avoidance groove 211 , the top of the avoidance groove 211 has a toggle opening 212 , and the paddle 31 extends out of the toggle opening 212 .

[0060] In some embodiments, reference Figure 3 and Figure 6 The back key device further includes a reset member 40, which provides a reset force for the positioning pin 30 toward the positioning hole 12. Specifically, when the positioning pin 30 moves away from the positioning hole 12, it must overcome the reset force of the reset member 40 to slide. When the positioning pin 30 is released, the reset force of the reset member 40 returns the positioning pin 30 to its original position when plugged into one of the positioning holes 12. This allows the back key 10 to remain locked or unlocked in the absence of external forces during use.

[0061] In some embodiments, one end of the positioning pin 30 is a plug-in portion that is plugged into the positioning hole 12 , and the other end of the positioning pin 30 is a pin shaft.

[0062] The reset member 40 is a reset compression spring, and the reset member 40 is sleeved outside the pin shaft.

[0063] In some embodiments, reference Figure 3 and Figure 6 The top surface of the avoidance groove 211 is an open structure.

[0064] Reference Figures 1 to 3 、Figure 6 The back key device further includes an assembly member 50, which is detachably connected to the outside of the avoidance groove 211. Of course, when the positioning pin 30 is provided with a paddle 31, the assembly member 50 does not block the toggle opening 212, so that the paddle 31 can extend out of the toggle opening 212 and slide on the toggle opening 212 to drive the positioning pin 30 to insert or release the positioning hole 12.

[0065] The assembly part 50 is provided with a reset member receiving groove and a pin hole communicating with the inside and outside of the reset key receiving groove. The other end of the positioning pin 30 extends into the pin hole and can extend outside the assembly part 50. One end of the reset member 40 is restricted on the pin shaft, and the other end of the reset member 40 is restricted in the reset member receiving groove.

[0066] By removing the assembly member 50 from the fixing portion 21 , the positioning pin 30 and the reset member 40 therein can be conveniently assembled or maintained.

[0067] Reference Figure 3 The assembly part 50 and the fixing part 21 can be detachably connected by screws 51.

[0068] Reference Figure 6 The assembly part 50 and the fixing part 21 can also be detachably connected by a snap connection. Specifically, a snap 213 is provided on the fixing part 21, and a bayonet 52 is provided on the assembly part 50. The snap connection between the two is achieved by snapping the snap 221 with the bayonet 52.

[0069] In some embodiments, reference Figures 1 to 3 、 Figure 6 The back key 10 and the free portion 22 are connected in a resettable rotation manner via a fixed shaft 13 and a return torsion spring 14 .

[0070] Specifically, such as Figure 3 As shown, two seat connection holes are set on both sides of the free portion 22, and two back key connection holes are set on both sides of the back key 10. The two seat connection holes are located inside or outside the back key connection hole. The appearance is simpler when located inside. Figure 3 The two seat connection holes are located inside the back key connection hole. There is a return torsion spring 14 between the two seat connection holes. Figure 6 The back key connection hole is shown between the two base connection holes, and the return torsion spring 14 is located between the two back key connection holes. The lower end of the return torsion spring 14 abuts the inner wall of the back key base 20, and the upper end abuts the inner wall of the back key 10. The fixed shaft 13 passes through the two base connection holes, the two back key connection holes, and the return torsion spring 14.

[0071] Of course, any other existing structure may be used to achieve a resettable rotation connection between the back key 10 and the free portion 22 .

[0072] In some embodiments, referenceFigure 2 and Figure 6 The back key 10 includes a back key body 15 and a face shell 16. The back key body 15 is detachably connected to the face shell 16, and the back key body 15 is rotatably connected to the free part 22.

[0073] The back key 10 of this embodiment can be disassembled to separate the face shell 16. According to the user's usage habits and the decorative habits of the face shell 16, the face shell 16 can be replaced to adapt to the grip curves of different game handles.

[0074] The key body 15 and the face shell 16 are preferably connected by snap connection for easy disassembly and replacement.

[0075] In some embodiments, referring to Figure 2 and Figure 6 , the positioning hole 12 is located on the back key body 15, and the pressing end 11 is located on the face shell 16.

[0076] The present invention also provides a handle, which has a handle back shell 91, a trigger switch 92 and a back key device. The back key device adopts the back key device with multi-segment angle adjustment function provided in the above embodiments of the present invention.

[0077] In some embodiments, referring to Figures 1 to 3 , Figure 6 , the handle has a circuit board (PCBA) 93. The circuit board 93 is fixedly connected inside the handle back shell 91. The fixing part 21 of the back key 10 is detachably connected to the circuit board 93, and the trigger switch 92 is arranged on the circuit board 93.

[0078] Specifically, the fixing part 21 and the circuit board 93 are preferably fixed by screws.

[0079] Embodiment 1:

[0080] Referring to Figures 1 to 3 , the back key device of this embodiment adopts the back key device provided in the above embodiments. Among them, there are three positioning holes 12, namely positioning hole 121, positioning hole 122 and positioning hole 123.

[0081] The back key 10 of this embodiment has a locked state and two unlocked states, namely the first state, the second state and the third state as shown in Figures 5A to 5C . The switching of the three states is achieved by pushing the positioning pin 30 to adjust and select the corresponding positioning hole 12, so as to determine one of the states.

[0082] Referring to Figure 4In 4A, when in the first state, the positioning pin 30 is inserted into the positioning hole 121 of the back key 10 under the pressure of the reset member 40. The inner side surface of the back key 10 coincides with the curved surface of the handle back shell 91, and the gap between the back key 10 and the handle back shell 91 is very small, which is not enough to trigger the tactile switch 92. In this state, pressing the back key 10 cannot press the tactile switch 92, realizing a function of retracting the back key, which is especially suitable for games without using the back key.

[0083] Referring to Figure 4 In 4B, when it is necessary to adjust to the second state, push the positioning pin 30, and the positioning pin 30 disengages from the positioning hole 121 or the positioning hole 123 of the back key 10. The back key 10 rotates under the action of the reset force (such as the return torsion spring 14). When it rotates to the middle position of the stroke, referring to Figure 4 In 4C, release the positioning pin 30, and the positioning pin 30 is inserted into the positioning hole 122 of the back key 10 under the thrust of the reset member 40. In this state, the back key 10 and the back key seat 20 are connected under the action of the positioning pin 30 and the reset member 40. When pressing the back key 10, the free part 22 of the back key seat 20 deforms to trigger the trigger switch 92, completing the function of triggering the back key. In the second state, the back key 10 rotates and tilts up a certain height, and the back key function can be used normally, which is suitable for some users who are not prone to accidentally touch the conventional back key, and the user's habits do not need to be changed.

[0084] Referring to Figure 4 In 4D, when it is necessary to adjust to the third state, push the positioning pin 30, and the positioning pin 30 disengages from the positioning hole 122 or the positioning hole 121 of the back key 10. The back key 10 rotates under the action of the reset force (such as the return torsion spring 14). When it rotates to the top position of the stroke, referring to Figure 4 In 4E, release the positioning pin 30, and the positioning pin 30 is inserted into the positioning hole 123 of the back key 10 under the thrust of the reset member 40. In this state, the back key 10 and the back key seat 20 are connected under the action of the positioning pin 30 and the reset member 40. When pressing the back key 10, the free part 22 of the back key seat 20 deforms to trigger the trigger switch 92, completing the function of triggering the back key. In the third state, the back key 10 rotates and tilts up a higher height than the second state. When using the back key function, the finger needs to stretch forward slightly to press, which is suitable for some users who are prone to accidentally touch the conventional back key 10, and the change of the user's habits is not significant.

[0085] The specific embodiments of the invention have been described in detail above, but they are only examples, and the invention is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modification or substitution of the invention is also within the scope of the invention. Therefore, all equivalent transformations, modifications, improvements, etc. made without departing from the spirit and principles of the invention should be covered by the scope of the invention.

Claims

1. A back key device with a multi - stage angle adjustment function, the back key device with a multi - stage angle adjustment function includes a back key, and the pressing end of the back key extends out of the handle back shell, characterized in that, At least two positioning holes are provided on a side of the back key away from the pressing end; The back key device with multi-stage angle adjustment function also includes: A back key base, the back key base comprising a fixed portion and a free portion connected to each other, the fixed portion being fixed to the back shell of the handle, the end of the free portion away from the fixed portion being a free end, the free end being located between the trigger switch and the pressing end, the back key being repositionably connected to the free portion; a positioning pin, the positioning pin being slidably connected to the fixing portion, one end of the positioning pin facing the positioning holes and being plugged into one of the positioning holes, so that the back key can be switched between a locked state and an unlocked state; When the back button is in a locked state, the inner side surface of the pressing end abuts against the surface of the handle back shell; When the back button is in an unlocked state, the inner side surface of the pressing end is at a certain distance from the surface of the back shell of the handle.

2. The back key device with multi-stage angle adjustment function according to claim 1, characterized in that Among the at least two positioning holes, one is a locking hole for locking the back key, and at least the other is an unlocking hole for unlocking the back key. The arrangement direction from the locking hole to the unlocking hole is opposite to the pressing direction of the pressing end.

3. The back key device with a multi-segment angle adjustment function according to claim 1, characterized in that, There are at least three positioning holes, one is a locking hole for putting the back key in a locked state, and at least two are unlocking holes for putting the back key in an unlocked state, so that the back key can be switched to several unlocking states with different pressing amplitudes, and the distance between the inner side surface of the pressing end and the surface of the back shell of the handle in each unlocking state is different.

4. The back key device with multi-stage angle adjustment function according to claim 1, characterized in that, A pick is fixedly connected to the positioning pin, and the pick extends out of the back shell of the handle; And / or, the fixing portion is provided with an avoidance groove, the positioning pin is inserted into the avoidance groove and can slide in the avoidance groove, the top of the avoidance groove has a toggle opening, the positioning pin is fixedly connected to a paddle, the paddle extends out of the toggle opening and extends out of the back shell of the handle; And / or, the back key device with multi-stage angle adjustment function further includes: A reset member provides a reset force for the positioning pin toward the positioning hole.

5. The back key device with a multi-segment angle adjustment function according to claim 4, characterized in that, One end of the positioning pin is a plug-in portion that is plugged into the positioning hole, and the other end of the positioning pin is a pin shaft; the reset member is a reset compression spring, and the reset member is sleeved outside the pin shaft; And / or, the top surface of the avoidance groove is an open structure; The back key device with multi-stage angle adjustment function also includes: An assembly part, the assembly part is detachably connected to the outside of the avoidance groove, the assembly part is provided with a reset member receiving groove and a pin hole communicating with the inside and outside of the reset member receiving groove, and the other end of the positioning pin extends into the pin hole and extends outside the assembly part; One end of the reset member is limited on the pin shaft, and the other end of the reset member is limited in the reset member accommodating groove.

6. The back key device with multi-stage angle adjustment function according to claim 1, characterized in that, The back key and the free portion are connected in a resettable rotational manner via a fixed shaft and a return torsion spring.

7. The back key device with multi-segment angle adjustment function according to claim 1, characterized in that, The back key includes a back key body and a face shell. The back key body is detachably connected to the face shell, and the back key body is rotatably connected to the free portion so as to be resettable.

8. The back key device with a multi-stage angle adjustment function according to claim 7, characterized in that, The positioning hole is located on the back key body, and the pressing end is located on the face shell.

9. A handle, the handle having a handle back shell, a trigger switch, and a back key device, characterized in that, The back key device adopts the back key device with multi-stage angle adjustment function described in any one of claims 1 to 8.

10. The handle according to claim 9, wherein The handle has a circuit board, the circuit board is fixedly connected inside the handle back shell, the fixing part of the back key is detachably connected to the circuit board, and the trigger switch is arranged on the circuit board.

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