Back key device with multi-section angle adjusting function and handle

Abstract

The invention belongs to the technical field of gamepads, and particularly relates to a back key device with a multi-section angle adjusting function and a gamepad. The back key device with the multi-section angle adjusting function comprises a back key, the pressing end of the back key extends out of a handle back shell, and at least two positioning holes are formed in the back key. The back key seat comprises a fixed part and a free part, the fixed part is fixed to the handle back shell, 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 resettable mode; the positioning pin is connected to the fixing part in a sliding mode, one end of the positioning pin can be connected with one positioning hole in an inserted mode, and therefore the back key can be switched between the locking state and the unlocking state. According to the back key, the function of adjusting multiple gears can be achieved, in the locking state, the back key is locked, the back key cannot be triggered, and the back key is particularly suitable for games without the back key. In the unlocking state, the back key rotates and tilts by a certain height, and the function of the back key can be normally used.

Description

Technical Field

[0001] The present invention belongs to the technical field of game handles, and in particular relates to a back key device and a handle with a multi-stage angle adjustment function. Background Art

[0002] The back buttons of game controllers on the market are currently designed based on ergonomics. The back buttons are designed to be in a comfortable position for fingers to press, taking into account the user's habits. This design conforms to the user's habits, but it also brings about the problem that some users are prone to accidental touches, and this habit is difficult to change deliberately. The main solutions on the market are as follows:

[0003] 1) Increase the pressing force of the back button. The disadvantage is that the finger needs to exert more force to trigger it when using it;

[0004] 2) Modify the position and shape of the back button. The back button is designed to be away from the finger position when holding the device normally or the shape of the back button is made smaller. When using it, the finger needs to be straightened to press it. However, this is inconvenient for users who can currently use the back button function normally.

[0005] 3) Set the back key function to off in the product software. When you need to turn on the back key function, you need to reset it in the APP Assistant or PC Assistant.

[0006] The above methods to solve the problem of accidental back button touches have a great impact on the user experience, especially when some games require the use of the back button. Due to different requirements for the back button in different games and the user's usage habits when using the back button, the above solutions will be particularly inconvenient for other users to use the back button. For some games that do not require the use of the back button, it is inconvenient to set it up on the APP assistant or PC assistant. Summary of the invention

[0007] The present invention aims to solve the technical problem that existing methods for solving the problem of accidental back key touching have a significant impact on user experience, and aims to provide a back key device and a handle with a multi-stage angle adjustment function.

[0008] In order to solve the above technical problems, the first aspect of the present invention provides a back key device with a multi-stage angle adjustment function, the back key device with a multi-stage angle adjustment function comprises a back key, a pressing end of the back key extends out of a handle back shell, and at least two positioning holes are provided on a side of the back key away from the pressing end;

[0009] The back key device with multi-stage angle adjustment function also 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, an 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, and the back key being rotatably connected to the free portion in a resetting manner;

[0011] A positioning pin, the positioning pin is slidably connected to the fixing portion, one end of the positioning pin faces the positioning holes and can be 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 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.

[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, an avoidance groove is provided on the fixed 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 back key device with multi-stage angle adjustment function as described above, the back key device with multi-stage angle adjustment function further includes:

[0019] A reset member is provided to provide 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 plugged into 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 also includes:

[0024] An assembly part, wherein 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 key receiving groove, and the other end of the positioning pin extends into the pin hole and can extend out of the assembly part;

[0025] 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.

[0026] Optionally, in the back key device with multi-stage angle adjustment function as described above, the back key and the free portion are connected in a resettable rotational connection via 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 part in a resettable 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] In order to solve the aforementioned technical problem, the second aspect of the present invention provides a handle having 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 to the back shell of the handle, the fixed part 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. The present invention can realize multiple gears / multi-angle adjustment functions without changing the back key pressing force. In the locked state, the back key is locked and will not be triggered, which is particularly suitable for games that do not use the back key. In the unlocked state, the back key rotates and tilts to a certain height, and the back key function can be used normally.

[0033] 2. The present invention adopts several unlocking states so that the back key can be tilted to a certain height or higher. When the back key is rotated and tilted to a certain height, the back key function can be used normally, which is suitable for some users who are not easy to accidentally touch the conventional back key, and there is no need to change the user's habit. When the back key is rotated and tilted to other higher heights, the finger needs to be slightly extended forward to press when using the back key function, which is suitable for some users who are easy to accidentally touch the conventional back key, and it does not change the user's habit much.

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

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

[0036] The disclosure of the present invention will become more apparent with reference to the accompanying drawings. 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 drawings:

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

[0038] Figure 2 for Figure 1 A schematic diagram of the structure after the middle shell is split;

[0039] Figure 3 for Figure 1 An exploded view of

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

[0041] FIG. 5A to FIG. 5C Schematic diagram of the back key in three states in Embodiment 1 of the present invention;

[0042] Figure 6 It is another structural explosion diagram of the present invention. DETAILED DESCRIPTION

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

[0044] It should be noted that the following embodiments and features therein may be combined with each other if there is no conflict.

[0045] In the description of the present invention, it should be noted that directional words such as the terms "outside", "middle", "inside", "outside", etc., which indicate directions and positional relationships, are based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, "several" and "a number" mean two or more, unless otherwise clearly and specifically defined.

[0047] Reference Figures 1 to 6 The present invention provides a back key device with a multi-stage angle adjustment function, which 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 handle back shell 91, and 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. Figure 3 and Figure 6 As shown, three positioning holes 12 are provided on a side of the back key 10 away from the pressing end 11 , which are a positioning hole 121 , a positioning hole 122 and a positioning hole 123 from bottom to top.

[0049] The back key base 20 includes a fixed portion 21 and a free portion 22 that are connected to each other, and 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, and the free end 22a 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] After the back key base 20 of the present invention is adopted with the above-mentioned design, only the fixed part 21 is fixed, and the free part 22 is not fixed to any device, so the free part 22 forms a cantilever structure, which has elastic deformation ability. When the user presses the pressing end 11 of the back key 10, since the back key 10 is connected to the free part 22, it will drive the free part 22 to elastically deform, so that the free end 22a moves along with the pressing direction.

[0051] The positioning pin 30 is slidably connected to the fixing portion 21, and 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 a 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 an unlocked state, the inner side surface of the pressing end 11 is at a certain distance from the surface of the handle back shell 91. By pressing the pressing end 11, the free portion 22 is elastically deformed, so that the free end 22a abuts against the trigger switch 92, thereby realizing the back key trigger function.

[0052] In some embodiments, among the at least two positioning holes 12, one is a locking hole for putting the back key 10 in a locked state, and at least the other is an unlocking hole for putting the back key 10 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 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 unlocking 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 unlocking state is different.

[0056] Since there are multiple unlocking holes, the unlocking states in this embodiment are different, so that 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 penetrated in the avoidance groove 211 and can slide in the avoidance groove 211 , the avoidance groove 211 has a toggle opening 212 at the top, 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. That is, when the positioning pin 30 moves away from the positioning hole 12, it needs to overcome the reset force of the reset member 40 to slide. When the positioning pin 30 is released, the positioning pin 30 returns to the state of being plugged into one of the positioning holes 12 under the reset force of the reset member 40. In this way, when the present invention is used, the back key 10 can maintain a locked or unlocked state without external force.

[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 part 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 part 50 does not block the toggle opening 212, so that the paddle 31 can extend out of the toggle opening 212 and can 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 reset key receiving groove. The other end of the positioning pin 30 extends into the pin hole and can extend out of the assembly part 50. One end of the reset member 40 is limited on the pin shaft, and the other end of the reset member 40 is limited 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 snap opening 52 is provided on the assembly part 50, and the snap connection between the two is achieved by snapping the snap opening 52 with the snap 221.

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

[0070] Specifically, 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 on the inner side or the outer side of the back key connection hole. The inner side has a simpler appearance, so Figure 3 The two seat connection holes are located inside the back key connection hole. Between the two seat connection holes is a return torsion spring 14. Figure 6 The back key connection hole shown is located between the two seat 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 against the inner wall of the back key seat 20, and the upper end abuts against the inner wall of the back key 10. The fixed shaft 13 is respectively penetrated by two seat connection holes, two back key connection holes and the return torsion spring 14.

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

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

[0073] The back key 10 of the present embodiment can be disassembled to form a front shell 16 , and the front shell 16 can be replaced according to the user's usage habits and decoration habits of the front shell 16 to adapt to the grip curves of different game controllers.

[0074] The key body 15 and the face shell 16 are preferably connected by snap-fitting to facilitate disassembly and replacement.

[0075] In some embodiments, reference 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 surface shell 16 .

[0076] The present invention further provides a handle, which comprises 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-stage angle adjustment function provided in the above embodiments of the present invention.

[0077] In some embodiments, reference Figures 1 to 3 , Figure 6 The handle has a circuit board (PCBA) 93 , the circuit board 93 is fixedly connected to the handle back shell 91 , the fixing portion 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 portion 21 and the circuit board 93 are preferably fixed by screws.

[0079] Embodiment 1:

[0080] Reference Figures 1 to 3 The back key device of this embodiment adopts the back key device provided by the above embodiments. 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, which are respectively as follows: FIG. 5A to FIG. 5C The switching of the three states is carried out by pushing the positioning pin 30 to adjust and select the corresponding positioning hole 12, thereby determining one of the states.

[0082] Reference Figure 44A in the figure, 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, and the inner side surface of the back key 10 is in overlap with the curved surface of the handle back shell 91. The gap between the back key 10 and the handle back shell 91 is very small, which is not enough to trigger the touch switch 92. In this state, pressing the back key 10 cannot press the touch switch 92, thereby realizing a back key folding function, which is particularly suitable for games that do not use the back key.

[0083] Reference Figure 4 4B, when it is necessary to adjust to the second state, the positioning pin 30 is pushed, the positioning pin 30 is disengaged from the positioning hole 121 or the positioning hole 123 of the back key 10, and 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, refer to Figure 4 4C in the figure releases 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 base 20 are connected under the action of the positioning pin 30 and the reset member 40. When the back key 10 is pressed, the free portion 22 of the back key base 20 is deformed to trigger the trigger switch 92, completing the back key triggering function. In the second state, the back key 10 is rotated and tilted to a certain height, and the back key function can be used normally, which is suitable for some users who are not easy to accidentally touch the conventional back key, and the user's habit does not need to be changed.

[0084] Reference Figure 4 4D in the figure, when it is necessary to adjust to the third state, the positioning pin 30 is pushed, the positioning pin 30 is disengaged from the positioning hole 122 or the positioning hole 121 of the back key 10, and 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, refer to Figure 4 4E in the figure releases 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 the back key 10 is pressed, the free portion 22 of the back key seat 20 is deformed to trigger the trigger switch 92, completing the back key triggering function. In the third state, the back key 10 rotates and tilts to a higher height than the second state. When using the back key function, the finger needs to be slightly extended forward to press, which is suitable for some users who are prone to accidentally touching the conventional back key 10, and does not change the user's habits much.

[0085] The specific implementation methods of the invention are described in detail above, but they are only examples, and the invention is not limited to the specific implementation methods 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, the equalization, modification, improvement, etc. made without departing from the spirit and principle of the invention should be included in 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 comprises a back key, the pressing end of the back key extends out of the back shell of the handle, 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, an 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, and the back key being rotatably connected to the free portion in a resetting manner; A positioning pin, the positioning pin is slidably connected to the fixing portion, one end of the positioning pin faces the positioning holes and can be 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 handle back shell.

2. The back key device with multi-stage angle adjustment function as claimed in claim 1, characterized in that: Among the at least two 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.

3. The back key device with multi-stage angle adjustment function as claimed in 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 as claimed in claim 1, characterized in that: The positioning pin is fixedly connected with a paddle, and the paddle 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 avoidance groove has a toggle opening at the top, the positioning pin is fixedly connected with a paddle, and 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 is provided to provide a reset force for the positioning pin toward the positioning hole.

5. The back key device with multi-stage angle adjustment function as claimed in 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, wherein 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 key receiving groove, and the other end of the positioning pin extends into the pin hole and can extend out of 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 as claimed in claim 1, characterized in that: The back key and the free portion are connected in a resetting rotational manner via a fixed shaft and a return torsion spring.

7. The back key device with multi-stage angle adjustment function as claimed in claim 1, characterized in that: The back key comprises 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 multi-stage angle adjustment function as claimed in 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, comprising 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 as described in any one of claims 1 to 8.

10. The handle according to claim 9, characterized in that The handle has a circuit board, which is fixedly connected to the back shell of the handle. 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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