Input device and electronic device

Abstract

The utility model provides input equipment and electronic equipment, and relates to the technical field of input equipment. The input equipment comprises a body, a cover body and a supporting piece, the body is provided with at least one first input assembly; the first end part of the cover body is provided with an input area corresponding to the first input assembly, the second end part of the cover body is connected with the body, and the first end part of the cover body is opposite to the second end part of the cover body; the supporting piece is used for providing acting force in the first direction for the second end portion of the cover body under the condition that the second end portion of the cover body is connected with the body so that the first end portion of the cover body can move in the direction opposite to the first direction, and the first direction is the direction in which the body points to the cover body.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of input devices, and in particular to an input device and an electronic device. BACKGROUND

[0002] In the prior art, the performance of the keys and the user experience of a mouse as an input device are always important concerns. The key cover of the mouse mainly relies on different wall thicknesses of the keys and a product-specific elastic arm structure to realize the elastic function and action mechanism of the keys. When the key cover is pressed, the key cover itself deforms to press the keys.

[0003] To avoid the keys from being stuck, the mouse usually reserves an empty stroke of about 0.05-0.1 mm. However, the reservation of the empty stroke causes the keys to be less sensitive in feedback, loose in hand feeling, and the like, which seriously affects the user's operation experience and satisfaction with the mouse product. UTILITY MODEL CONTENT

[0004] The present disclosure provides an input device in a first aspect, which comprises:

[0005] a body, the body being provided with at least one first input component;

[0006] a cover body, a first end of the cover body being provided with an input area corresponding to the first input component, a second end of the cover body being connected to the body, the first end of the cover body being opposite to the second end of the cover body;

[0007] a support member, the support member being configured to provide an acting force in a first direction to the second end of the cover body when the second end of the cover body is connected to the body, so that the first end of the cover body can move in the opposite direction of the first direction, the first direction being a direction in which the body points to the cover body.

[0008] Further, the second end of the cover body is provided with a connecting area and a supporting area, the supporting area being located on a side of the connecting area away from the first end of the cover body.

[0009] The body is connected to the connecting area, and the support member acts on the supporting area.

[0010] Further, the body is provided with two first input components.

[0011] The cover body further comprises:

[0012] two first sub-cover bodies, an inner side of a first end of the first sub-cover body being provided with an input area, an inner side of a second end of the first sub-cover body serving as a connecting area;

[0013] a second sub-cover body, the second sub-cover body being arranged on a side of the second end of the first sub-cover body away from the first end of the first sub-cover body, the two first sub-cover bodies being connected through the second sub-cover body, an inner side of the second sub-cover body serving as a supporting area.

[0014] Further, the support is a compression elastic component, and the support is compressed between the middle part of the inner side of the second sub-cover body and the body.

[0015] Further, the input device further comprises:

[0016] The first connecting component is arranged on the inner side of the second end part of the first sub-cover body.

[0017] The second connecting component is arranged on the body and corresponds to the first connecting component, and the second connecting component is provided with a rotating shaft, and the first connecting component is rotationally connected with the rotating shaft of the second connecting component.

[0018] Further, the input device further comprises:

[0019] The first limiting component is arranged on the inner side of the first sub-cover body and is located on the side of the input area away from the second end part of the first sub-cover body.

[0020] The second limiting component is arranged on the body, the second limiting component corresponds to the first limiting component, and the first limiting component is connected with the second limiting component to limit the cover body on the body in the first direction.

[0021] Further, the input device further comprises:

[0022] The first positioning component is arranged on the cover body.

[0023] The second positioning component is arranged on the body, the second positioning component corresponds to the first positioning component, and the second positioning component can be connected with the first positioning component to quickly position the cover body on the body.

[0024] Further, the input device further comprises:

[0025] The key contact is arranged in the input area of the cover body, and the key contact can abut against the first input assembly.

[0026] Further, the two first sub-cover bodies and the second sub-cover body enclose an avoiding area.

[0027] The body further comprises:

[0028] The second input assembly is arranged in the avoiding area and protrudes outside the cover body.

[0029] The second aspect of the present disclosure discloses an electronic device, which comprises:

[0030] The input device is connected with the body of the electronic device, and the input device comprises:

[0031] The body is provided with at least one first input assembly;

[0032] The cover body is provided with an input area corresponding to the first input assembly at the first end thereof, and the second end of the cover body is connected to the body, and the first end of the cover body is opposite to the second end of the cover body;

[0033] The support member is used to provide an acting force in a first direction to the second end of the cover body when the second end of the cover body is connected to the body, so that the first end of the cover body can act in the opposite direction of the first direction, and the first direction is the direction in which the body points to the cover body. BRIEF DESCRIPTION OF DRAWINGS

[0034] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which several embodiments of the present disclosure are shown by way of example, and wherein like or corresponding denominations refer to like or corresponding elements throughout. In the drawings:

[0035] Figure 1 A first perspective structural schematic view of the input device is schematically shown;

[0036] Figure 2 A structural schematic view of the cover body is schematically shown;

[0037] Figure 3 A structural schematic view of the body is schematically shown;

[0038] Figure 4 A second perspective structural schematic view of the input device is schematically shown;

[0039] Figure 5 An E-E sectional view of the input device is schematically shown.

[0040] BRIEF DESCRIPTION OF DRAWINGS

[0041] 1. The body; 101, the first input assembly; 102, the second input assembly;

[0042] 2. The cover body; 201, the first sub-cover body; 202, the second sub-cover body; 203, the third sub-cover body;

[0043] 3. The support member; 4, the first connecting member; 5, the second connecting member;

[0044] 6. The first limiting member; 601, the connecting column; 602, the blocking block;

[0045] 7. The second limiting member; 8, the first positioning member; 9, the second positioning member; 10, the key contact; 11, the auxiliary body;

[0046] A, first direction; B, support area; C, connection area; D, avoidance area. DETAILED DESCRIPTION

[0047] The embodiments of the present disclosure will be described in further detail below with reference to the drawings and examples. The following detailed description of the examples and the accompanying drawings are provided to illustrate the principles of the present disclosure, and should not be taken in a limiting sense. The present disclosure can be implemented in numerous ways, including, but not limited to, the particular embodiments described in the text below. Rather, any number of the described embodiments can be combined, modified, or extended in various ways while still falling within the scope of the present disclosure.

[0048] The present disclosure provides these embodiments in order to make the present disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these examples should be interpreted as merely exemplary, and not as a limitation.

[0049] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0050] In addition, "first", "second", and similar words used in the present disclosure do not indicate any order, number, or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0051] Embodiment One

[0052] As Figures 1-5As shown, the first aspect of the present disclosure provides an input device, which comprises a body 1, a cover 2 and a support 3; the body 1 is provided with at least one first input component 101; the first end of the cover 2 is provided with an input area corresponding to the first input component 101, the second end of the cover 2 is connected to the body 1, and the first end of the cover 2 is opposite to the second end of the cover 2; the support 3 is used to provide an acting force in the first direction A to the second end of the cover 2 when the second end of the cover 2 is connected to the body 1, so that the first end of the cover 2 can move in the opposite direction of the first direction A, and the first direction A is the direction in which the body 1 points to the cover 2.

[0053] Specifically, the body 1 can be a standard mouse, and the at least one first input component 101 provided on the body 1 can be a key structure on the mouse. By pressing the first input component 101, the mouse cursor can be input to the corresponding area for instruction operation. The number of first input components 101 provided on the body 1 can be determined according to actual needs.

[0054] The cover 2 can be a key cover installed on the body 1 and capable of covering the outside of the first input component 101. By pressing the cover 2, the first end of the cover 2 can be input to the first input component 101 to press the first input component 101. The input area is the position on the first end of the cover 2 corresponding to the first input component 101 when the cover 2 is installed on the body 1.

[0055] The support 3 is not limited, and it can only provide an acting force in the first direction A. For example, the support 3 can be a component with magnetic attraction function. The first part of the support 3 is arranged at the second end of the cover 2, and the second part of the support 3 is arranged at the position corresponding to the second end of the cover 2 on the body 1. The opposite surfaces of the first part and the second part are the same poles of two magnets, so that the repulsive force is generated and acts on the second end of the cover 2 in the first direction A. It should be noted that the pressing force provided by the support 3 is not enough to press the first input component 101.

[0056] In the embodiment, the cover 2 and the body 1 can be rotationally connected, and no specific limitation is imposed thereon. The support 3 applies a force to the second end portion, and through the rotational connection between the two, the first end portion of the cover 2 can be caused to move in the opposite direction of the first direction A, so that the input area of the first end portion of the cover 2 moves towards the first input component, until the input area at least partially abuts against the first input assembly 101, thus shortening the distance between the input area of the cover 2 and the first input assembly 101, and further shortening the idle stroke between the cover 2 of the input device and the first input assembly 101 of the body 1, thereby improving the sensitivity of the input device and solving the problem of loose hand feeling of the input device.

[0057] In the embodiment, an auxiliary body 11 can also be arranged in the input device, and the auxiliary body 11 can be spliced with the body 1 to form an input device that can meet different user needs. The auxiliary body 11 can be replaced or changed in the installation mode according to the needs of the user's hand, and no specific limitation is imposed thereon.

[0058] As shown in Figure 2 some embodiments, the second end portion of the cover 2 is provided with a connecting area C and a supporting area B, the supporting area B is located on the side of the connecting area C away from the first end portion of the cover 2; the body 1 is connected to the connecting area C, and the support 3 acts on the supporting area B.

[0059] Specifically, the connecting area C of the cover 2 is used to realize the connection between the body 1 and the cover 2, and the supporting area B of the cover 2 is used to receive the force provided by the support 3. The supporting area B is located on the side of the connecting area C away from the first end portion of the cover 2, which aims to increase the distance between the force provided by the support 3 and the connection between the cover 2 and the body 1. In this way, the first end portion of the support 3 can be caused to point in the opposite direction of the first direction A without the support 3 providing a large force, effectively reducing the cost and volume of the support 3.

[0060] As shown in Figure 3 some embodiments, the body 1 is provided with two first input assemblies 101;

[0061] The cover 2 further comprises two first sub-covers 201 and a second sub-cover 202; the first end portion of the first sub-cover 201 is provided with an input area on the inner side, and the second end portion of the first sub-cover 201 serves as a connecting area C; the second sub-cover 202 is arranged on the side of the second end portion of the first sub-cover 201 away from the first end portion of the first sub-cover 201, the two first sub-covers 201 are connected through the second sub-cover 202, and the inner side of the second sub-cover 202 serves as a supporting area B.

[0062] Specifically, the two first input components 101 provided on the body 1 can be the keys of the left and right keys of the input device respectively, and are not specifically limited. The two first sub-cover bodies 201 can also be the left and right keys of the input device respectively. The connection between the second sub-cover body 202 and the two first sub-cover bodies 201 can be a snap connection, and in the embodiment, the two first sub-cover bodies 201 and the second sub-cover body 202 are integrally formed. The two input regions of the two first sub-cover bodies 201 are rotationally connected to the body 1, so that the two input regions of the two first sub-cover bodies 201 correspond to the two first input components 101 respectively. The position where the support 3 exerts the force is not specifically limited, and the support 3 can act on any position of the second sub-cover body 202. The support 3 provides a force in the first direction A on the second sub-cover body 202, so that the two first sub-cover bodies 201 rotate relative to the body 1, and the input regions of the two first sub-cover bodies 201 are both close to the two first input components 101 corresponding to them respectively in the opposite direction of the first direction A. It should be noted that the connection between the two first sub-cover bodies 201 is not limited to the second sub-cover body 202. In order to ensure the stability of the cover 2 as a whole, more sub-cover bodies can be added, and in the embodiment, the cover 2 can be obtained by integrally forming as a whole.

[0063] As shown in Figure 3 , 5 , in some embodiments, the support 3 is a compression elastic component, and the support 3 is compressed between the middle position inside the second sub-cover body 202 and the body 1.

[0064] Specifically, the support 3 can be understood as a component that can be compressed and then deformed, and the support 3 can restore when the deforming force acting on the support 3 is removed. The support 3 can be an air bag, which is not specifically limited. In the embodiment, the support 3 can be a compression spring. The support 3 is compressed between the middle position inside the second sub-cover body 202 and the body 1, and the support 3 can restore and then generate a force acting on the middle of the second sub-cover body 202. In this way, the distance from the support 3 to the two first sub-cover bodies 201 is equal, and the torque of the force generated by the support 3 acting on the two first sub-cover bodies 201 is the same. This effectively prevents the problem that the left and right keys of the input device have different hand feelings due to different torques acting on the two first sub-cover bodies 201. In the embodiment, a receiving groove can be provided on the body 1, the support 3 is arranged in the receiving groove, and one end of the support 3 extends out of the receiving groove to facilitate the positioning of the support 3.

[0065] As shown in Figure 2 , 3As shown in the drawings, in some embodiments, the input device further comprises: a first connecting component 4 and a second connecting component 5; the first connecting component 4 is arranged on the inner side of the second end of the first sub-cover body 201; the second connecting component 5 is arranged on the body 1 and corresponds to the first connecting component 4, and the second connecting component 5 is provided with a rotating shaft, and the first connecting component 4 is rotationally connected with the rotating shaft of the second connecting component 5.

[0066] Specifically, the connection relationship between the first connecting component 4 and the first sub-cover body 201 can be a snap connection, and in the present embodiment, the first connecting component 4 can be integrally formed with the first sub-cover body 201. The connection mode between the second connecting component 5 and the body 1 can also be integrally formed in the present embodiment, and is not specifically limited. The second connecting component 5 can be a bearing seat with a rotating shaft, and the first connecting component 4 can be a shaft sleeve with a base, which is sleeved on the rotating shaft to realize the rotational connection between the cover body 2 and the body 1. In the present embodiment, the shaft sleeve can be made of a material capable of elastic deformation, and an opening extending along the axis of the shaft sleeve can be arranged on the side wall of the shaft sleeve. During installation, the opening abuts against the rotating shaft, and the shaft sleeve is elastically deformed to make the opening larger, and then the shaft sleeve is sleeved on the rotating shaft.

[0067] The body 1 and the cover body 2 are rotationally connected through the first connecting component 4 and the second connecting component 5. In use, the user presses the first sub-cover body 201, and then the cover body 2 rotates as a whole to press the input area of the cover body 2 against the first input component. Compared with the prior art which realizes the elastic function and action mechanism of the cover body 2 through different wall thicknesses of the cover body 2 itself and a product-specific elastic arm structure, the cover body 2 in the present scheme can adopt a cover body 2 with uniform wall thickness, which can realize more processing technologies, such as double-color molding or metal keys, and is not limited by the wall thickness and the elasticity of the material itself.

[0068] As shown in the drawings, Figure 2 , 3 As shown in the drawings, in some embodiments, the input device further comprises: a first limiting component 6 and a second limiting component 7; the first limiting component 6 is arranged on the inner side of the first sub-cover body 201 and located on the side of the input area away from the second end of the first sub-cover body 201; the second limiting component 7 is arranged on the body 1, and the second limiting component 7 corresponds to the first limiting component 6, and the first limiting component 6 is connected with the second limiting component 7 to limit the cover body 2 on the body 1 along the first direction A.

[0069] Specifically, the first limiting component 6 can be a slide way extending in the opposite direction of the first direction A, and the slide way penetrates into the inside of the body 1, and the second limiting component 7 can be a sliding block, and the sliding block and the slide way are connected through sliding to realize the limiting between the cover body 2 and the body 1 along the first direction A, and the length of the slide way serves as the form of the movement of the cover body 2 along the first direction A.

[0070] In the embodiment, the first limiting component 6 can include a connecting column 601 extending reversely along the first direction A, and an end of the connecting column 601 away from the cover 2 can be provided with a blocking block 602. The second limiting component 7 can be a limiting hole opened on the body 1, and the limiting hole can be connected with the internal space of the body 1 and the external environment of the body 1. The connecting column 601 is arranged in the limiting hole, so that the blocking block 602 is also in the internal space of the body 1, and the projection of the blocking block 602 along the first direction A is located outside the limiting hole. When the first end of the cover 2 moves to the limit position along the first direction A, the blocking block 602 abuts against the inner wall of the body 1 near the limiting hole, so as to limit the cover 2 along the first direction A.

[0071] As shown in Figure 2 , 3 In some embodiments, the input device further includes a first positioning component 8 and a second positioning component 9. The first positioning component 8 is arranged on the cover 2, and the second positioning component 9 is arranged on the body 1. The second positioning component 9 corresponds to the first positioning component 8, and the second positioning component 9 can be connected with the first positioning component 8, so that the cover 2 can be quickly positioned on the body 1.

[0072] Specifically, the first positioning component 8 can be a hole arranged on the cover 2, and the second positioning component 9 can be a column arranged on the body 1. The column is arranged in the hole, so as to quickly position the cover 2 on the body 1. In the embodiment, the cover 2 can further include a third sub-cover 203 connected between the two first sub-covers 201, so as to stabilize the structure of the cover 2. The two first sub-covers 201, the second sub-cover 202 and the third sub-cover 203 can be integrally formed. The first positioning component 8 can be a positioning column integrally formed with the third sub-cover 203, and the second positioning component 9 can be a positioning hole arranged on the body 1. The positioning hole can be connected with the internal space of the body 1 and the external space of the body 1. The first positioning component 8 is arranged in the second positioning component 9, so as to quickly position the cover 2 on the body 1.

[0073] As shown in Figure 2 In some embodiments, the input device further includes a key contact 10 arranged in the input area of the cover 2, and the key contact 10 can abut against the first input assembly 101.

[0074] Specifically, the contact point arranged in the input area of the cover 2 can be a cylindrical block or a rectangular block, which is not specifically limited. The key contact point 10 can be more accurately positioned to the first input component 101 on the input device, and during the pressing of the cover 2, the key contact point 10 can make the pressure of the cover 2 when pressed more concentrated on the first input component 101, which can reduce hand fatigue for users who use the input device for a long time.

[0075] As shown in Figure 2 、 3 In some embodiments, the two first sub-covers 201 and the second cover 2 enclose an avoidance area D;

[0076] The body 1 further comprises a second input component 102, which is arranged in the avoidance area D and protrudes outside the cover 2.

[0077] Specifically, the second input component 102 can be a middle and / or scroll wheel of the input device, which is not specifically limited. The two first sub-covers 201 and the second cover 2 enclose an avoidance area D, which can effectively avoid interference between the cover 2 and the second input component 102.

[0078] Embodiment two

[0079] The second aspect embodiment two of the present disclosure provides an electronic device, which comprises: an electronic device body 1 and an input device; wherein the input device comprises: a body 1, a cover 2 and a support 3; the body 1 is provided with at least one first input component 101; the first end of the cover 2 is provided with an input area corresponding to the first input component 101, the second end of the cover 2 is connected with the body 1, and the first end of the cover 2 is opposite to the second end of the cover 2; the support 3 is used to provide an acting force in a first direction A to the second end of the cover 2 in the case that the second end of the cover 2 is connected with the body 1, so that the first end of the cover 2 can act in the opposite direction of the first direction A, and the first direction A is the direction in which the body 1 points to the cover 2.

[0080] Specifically, the electronic device body 1 can be a notebook computer or a computer host, which is not specifically limited. The electronic device and the input device can be connected through a line. The electronic device adopted in the embodiment two contains the input device, which is used to provide an acting force in a first direction A to the second end of the cover 2 in the case that the second end of the cover 2 is connected with the body 1, so that the first end of the cover 2 can act in the opposite direction of the first direction A, thereby shortening the idle stroke between the cover 2 of the input device and the first input component 101 of the body 1, improving the sensitivity of the input device, and improving the overall operation feeling of the electronic device.

[0081] The above generally describes only a specific implementation of the present disclosure but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present disclosure, which should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

[0082] It should also be noted that in the description of the present disclosure, unless explicitly defined and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between the first device and the second device, there can be or can not be an intermediate device between the specific device and the first device or the second device.

[0083] All the terms used in the present disclosure have the same meaning as understood by those skilled in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that the terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or excessively formalized sense, unless explicitly defined here.

[0084] The techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but in appropriate cases, the techniques, methods and devices should be considered as part of the specification.

Claims

1. An input device, characterized by The input device comprises: a body provided with at least one first input component; a cover body provided with an input area corresponding to the first input component at a first end thereof, and connected to the body at a second end thereof, the first end of the cover body being opposite to the second end thereof; a support member for providing a first direction force to the second end of the cover body when the second end of the cover body is connected to the body, so that the first end of the cover body can move in a direction opposite to the first direction, the first direction being a direction in which the body points to the cover body.

2. The input device according to claim 1, wherein: the second end of the cover body is provided with a connecting area and a supporting area, the supporting area being located on a side of the connecting area away from the first end of the cover body; the body is connected to the connecting area, and the support member acts on the supporting area.

3. The input device according to claim 2, wherein: the body is provided with two first input components; the cover body further comprises: two first sub-cover bodies provided with input areas at inner sides of first ends thereof, and second ends thereof serving as the connecting area; a second sub-cover body provided on a side of the second ends of the first sub-cover bodies away from the first ends of the first sub-cover bodies, the first sub-cover bodies being connected through the second sub-cover body, and an inner side of the second sub-cover body serving as the supporting area.

4. The input device according to claim 3, wherein: the support member is a compression elastic member, and the support member is compressed between a middle position of the inner side of the second sub-cover body and the body.

5. The input device of claim 3, wherein, The input device further comprises: a first connecting member provided on the inner side of the second end of the first sub-cover body; a second connecting member provided on the body and corresponding to the first connecting member, the second connecting member being provided with a rotating shaft, and the first connecting member being rotatably connected to the rotating shaft of the second connecting member.

6. The input device of claim 3, wherein, The input device further comprises: a first limiting member provided on the inner side of the first sub-cover body and located on a side of the input area away from the second end of the first sub-cover body; a second limiting member provided on the body and corresponding to the first limiting member, the first limiting member being connected to the second limiting member so that the cover body is limited in the first direction on the body.

7. The input device of claim 1, wherein, The input device further comprises: a first positioning member provided on the cover body; a second positioning member provided on the body and corresponding to the first positioning member, the second positioning member being capable of being connected to the first positioning member so that the cover body can be quickly positioned on the body.

8. The input device of claim 1, wherein, The input device further comprises: a key contact provided in the input area of the cover body, the key contact being capable of abutting against the first input component.

9. The input device according to claim 3, wherein: Two of the first sub-cover bodies and the second sub-cover body enclose an avoiding area; The body further comprises: A second input component is arranged in the avoiding area and protrudes outside the cover body.

10. An electronic device, comprising: Comprise: An electronic device body; An input device connected with the electronic device body, the input device comprising: A body provided with at least one first input component; A cover body, a first end of the cover body is provided with an input area corresponding to the first input component, a second end of the cover body is connected with the body, and the first end of the cover body is opposite to the second end of the cover body; A support member for providing a first direction force to the second end of the cover body when the second end of the cover body is connected with the body, so that the first end of the cover body can move in the opposite direction of the first direction, and the first direction is the direction of the body pointing to the cover body.

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