Push structure and electronic switch and device using same

Abstract

The application discloses a pressing structure and an electronic switch and equipment using the same, and belongs to the technical field of electronic switches. The pressing structure comprises a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider, a pressing slider

Description

TECHNICAL FIELD

[0001] The present application relates to the mechanical and electrical technical field, in particular, to a pressing structure and electronic switch and device using the same. BACKGROUND

[0002] With the popularity of intelligent devices and other types of devices, the use of pressing structures on devices is also increasing, and the pressing structure can be used as a function structure such as triggering an electronic switch, controlling the buckling or un-buckling of a buckle through the reciprocating movement of a main component, etc. Most manufacturers design relatively complex pressing structures.

[0003] A new pressing structure switch is disclosed in Chinese patent CN202020667498.8, which comprises a lever, a hollow lever forming an installation cavity, a pressing switch provided on the lever, a button, a micro switch, a transmission rod and a circuit board, the button being provided at one end of the lever and being in sliding cooperation with the lever, the micro switch and the circuit board being provided in the installation cavity and being located away from the button, the micro switch being electrically connected with the circuit board, the transmission rod being provided in the installation cavity and being in sliding cooperation with the lever along the length direction of the lever, one end of the transmission rod extending to the button and being in linkage cooperation with the button, and the other end extending to the micro switch. It can be seen that the pressing structure of the pressing switch in the patent is relatively complex.

[0004] A car window button gear pressing structure is disclosed in Chinese patent CN201610515367.6, which comprises a button and a shell, a track insert being installed on the inner wall of the button, the inner wall of the track insert being in inverted V shape, a semicircular pit being provided on the inner wall, the inner wall being in cooperation with a top pin below, and the top pin being installed on the bottom of the shell through a spring. In use, when the button and the track insert are rotated under force, the spring is compressed and deformed, and the top pin passes through the pit of the track insert, thereby generating a gear feeling. It can be seen that the pressing structure in the patent cannot control the buckling or un-buckling of a buckle through the reciprocating movement of a main component, and the application is not widely used and has limitations.

[0005] Therefore, the present application is proposed. SUMMARY

[0006] The present application solves the technical problem of overcoming the shortcomings of the prior art, and provides a pressing structure and electronic switch and device using the same, which is simple in structure, easy to assemble and widely applicable.

[0007] The first aspect of the present application provides a pressing structure, comprising:

[0008] A pressing slider provides a stress interface.

[0009] An elastic member is sleeved on the pressing slider;

[0010] An assembly base is used to mount the pressing slider after the elastic member is sleeved, the pressing slider is movably arranged in the assembly base, and the assembly base is provided with a structure for preventing the pressing slider from being pulled out.

[0011] In a possible implementation, the assembly base comprises:

[0012] A base plate,

[0013] A limiting part is arranged on the base plate and comprises left and right limiting parts for limiting the left and right movement of the pressing slider, and a lower end limiting part arranged below the left and right limiting parts for limiting the left and right and downward movement of the pressing slider and the downward movement of the elastic member, and the base plate, the left and right limiting parts and the lower end limiting part jointly form a mounting space of the pressing slider in the assembly base.

[0014] In a possible implementation, the structure for preventing the pressing slider from being pulled out is a prevention part arranged on the left and right limiting parts.

[0015] In a possible implementation, the pressing slider comprises:

[0016] A sleeving part, one end of the sleeving part protrudes from the lower end limiting part outside the mounting space, and the elastic member is sleeved on the part of the sleeving part located in the mounting space;

[0017] A handle part connected to the other end of the sleeving part, which can drive the sleeving part to be slidably mounted in the mounting space, and cooperate with the lower end limiting part to press the elastic member and limit the movement of the elastic member.

[0018] In a possible implementation, the base plate, the left and right limiting parts, the lower end limiting part and the prevention part are integrally formed.

[0019] In a possible implementation, the base plate is a box plate of a device.

[0020] The second aspect of the application provides an electronic switch comprising any of the pressing structures.

[0021] The third aspect of the application provides a device comprising any of the pressing structures.

[0022] In a possible implementation, the device comprises a movable male or female buckle structure formed by the pressing structure.

[0023] In a possible implementation, the device comprises an electronic switch triggered by the pressing structure.

[0024] In one possible implementation, the device comprises an electronic switch triggered by the pressing structure and a functional structure, such as a movable male or female buckle structure, obtained by the pressing structure.

[0025] Compared with the prior art, the present application has the following beneficial effects:

[0026] 1. The pressing structure of the present application only comprises a pressing slider, an elastic member and an assembly base, and the structure is relatively simple and the assembly is relatively convenient. The reciprocating movement of the main components can be applied to switches, buckle fittings and other occasions as specific functional structures, and the application is relatively wide and the degree of universality is high.

[0027] 2. The setting of the anti-disengagement structure of the assembly base can also improve the stability of the operation of the pressing structure.

[0028] The specific embodiments of the present application will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings are part of the present application and serve to provide a further understanding of the present application. The schematic embodiments of the present application and their descriptions serve to explain the present application but do not constitute an improper limitation on the present application. Obviously, the accompanying drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0030] Figure 1 It is an assembly diagram of a pressing structure of an embodiment of the present application;

[0031] Figure 2 It is Figure 1 an exploded view of the pressing structure in the middle;

[0032] Figure 3 It is an assembly diagram of a pressing structure and an electronic switch of an embodiment of the present application;

[0033] Figure 4 It is an assembly diagram of a pressing structure and a movable buckle of an embodiment of the present application;

[0034] Figure 5 It is a schematic diagram of the assembly structure of a pressing structure and a first movable buckle of an embodiment of the present application after being cut open;

[0035] Figure 6 It is Figure 5 a structure schematic diagram of the enlarged part A in the middle;

[0036] Figure 7 It is a schematic diagram of the cooperation principle of a pressing structure and a movable buckle of an embodiment of the present application;

[0037] Figure 8 FIG. 6 is a cross-sectional view of a second female buckle structure on a pressing structure and a corresponding male buckle structure according to another embodiment of the present application;

[0038] Figure 9 FIG. 7 is a cross-sectional view of a second female buckle structure on a pressing structure and a corresponding male buckle structure according to another embodiment of the present application; Figure 8 FIG. 8 is a partial enlarged view of the structure at B in FIG. 7;

[0039] In the drawings: 2, pressing slider; 21, sleeve portion; 22, handle portion; 221, first acting surface; 222, second acting surface; 4, elastic member; 6, assembly base; 61, base plate; 62, left and right limiting portions; 63, lower end limiting portion; 64, anti-disengagement portion; 8, electronic switch; 10, first movable buckle; 101, first force receiving surface; 102, second force receiving surface; 12, second movable buckle; 14, buckle structure cooperating with the second movable buckle.

[0040] It should be noted that the drawings and the written description are not intended to limit the scope of the present application in any way, but are merely to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments will be described clearly and completely below with reference to the drawings of the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0042] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship of the structure shown in the drawings based on the conventional working position, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application, unless otherwise stated. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0043] In the description of the present application, it should be noted that unless otherwise explicitly defined and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0044] In the description of the present application, it should be noted that the terms "first", "second", etc. are only for the convenience of describing the present application and simplifying the description, and should not be understood as a limitation of the present application, unless otherwise stated. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood in specific circumstances.

[0045] The purpose of the present application is to overcome the shortcomings of existing products on the market, and to provide a pressing structure with simple structure, easy assembly and wide application range.

[0046] The present application will be further described below through specific examples.

[0047] As shown in Figure 1 , Figure 1 , a pressing structure assembly diagram of an embodiment of the present application is shown, Figure 2 , a schematic exploded view of a pressing structure is shown, which can include a pressing slider 2, an elastic member 4, and an assembly base 6. Figure 1

[0048] The pressing slider 2 provides the action point of the user or external force, i.e. provides the stress interface that bears the driving force, which can include a handle portion and a sleeving portion.

[0049] The elastic member 4 is sleeved on the pressing slider, specifically, it can be sleeved on the sleeving portion of the pressing slider.

[0050] The assembly base 6 is used to install the pressing slider after the elastic member is sleeved, the pressing slider is movably arranged in the assembly base, and the assembly base can be provided with a structure for preventing the pressing slider from being pulled out.

[0051] As shown in Figure 1 , 2 , in one embodiment, the assembly base 6 includes a base plate 61 and a limiting portion, the limiting portion is arranged on the base plate, the limiting portion can include left and right limiting portions 62 for limiting the left and right movement of the pressing slider, a lower end limiting portion 63 arranged below the left and right limiting portions for limiting the left and right and downward movement of the pressing slider and the downward movement of the elastic member, and the base plate 61, the left and right limiting portions 62 and the lower end limiting portion 63 jointly form an installation space of the pressing slider on the assembly base; the left and right limiting portions can be directly arranged on the base plate, or can be arranged on the base plate through connecting ribs connecting one end of the left and right limiting portions, and the latter is preferred, which can reduce the assembly error; the assembly base can also be provided with a structure for preventing the pressing slider from being pulled out, and the anti-pulling-out portion 64 can be arranged on the left and right limiting portions, wherein the lower end limiting portion 63 can include left, middle and right parts arranged with gaps, and more specifically, see Figure 2 ​The substrate, left and right limiting components, and lower end limiting component jointly enclose the main installation space of the pressing slider on the assembly base. It can be understood that the overall length of the assembly base arranged in the direction of movement of the pressing slider can satisfy that the pressing slider will not be separated from the assembly base, and / or is limited by the structure of the use device itself when in use.

[0052] As shown in any one of Figure 1 , 2 In an embodiment, the pressing slider can include a handle 22, two sleeve parts, one end of the sleeve part 21 protruding from the lower end limiting part of the assembly base outside the installation space, more specifically, the sleeve part protrudes from the lower end limiting part of the assembly base through the arrangement gap of the left, middle, and right parts of the lower end limiting part, and the elastic member is sleeved on the part of the sleeve part inside the installation space; the handle is installed in the installation space jointly enclosed by the substrate 61, left and right limiting components 62, and lower end limiting part 63, and is connected to the other end of the sleeve part inside the installation space, driving the two sleeve parts to be slidably installed in the installation space, and cooperating with the lower end limiting part to extrude the elastic member and limit the movement of the elastic member.

[0053] The substrate, left and right limiting components, lower end limiting part, and anti-disengagement part can be integrally formed, which can reduce assembly errors, and the size of the substrate can be close to the size of the installation space, so as to carry the entire pressing structure. The entire pressing structure can be provided with a connecting structure such as adhesive on the substrate, which is connected to the use device during use, improving its versatility.

[0054] In an embodiment, the substrate is a box plate of the use device, specifically, it can be a mounting bottom plate, and the other components of the pressing structure assembly base are arranged on the mounting bottom plate of the device by connecting pieces, welding, or other means. Preferably, it further includes an upper end limiting part for limiting upward movement of the pressing slider, and the upper end limiting part can be a protrusion on the outer edge of the box plate or the mounting bottom plate of the use device. At this time, the trigger start of the pressing structure can be achieved by inserting an external object into a small hole provided on the box plate of the device to drive.

[0055] As shown in any one of Figure 3 , Figure 1 , 2 The pressing structure can be used to trigger the electronic switch.

[0056] In an embodiment, the reciprocating movement of the pressing slider of the pressing structure shown in any one of Figures 1 to 3 is directly used to trigger and control the electronic switch 8.

[0057] As shown in the figure, Figure 5This is a cross-sectional schematic diagram of a pressing structure and a first movable fastener assembly structure according to an embodiment of the present invention. Figure 4 The diagram shown is a structural schematic of a portion of the press-fit structure and movable fastener assembly according to an embodiment of the present invention, which can also be used for control. Figure 3 The electronic switch 8 shown can be based on the following principle: Figure 7 As shown, Figures 1-7 As shown, the pressing structure may include a pressing slider, an elastic element, and a mounting base. The pressing slider may include a handle 22 and a sleeve 21 connected below the handle. The handle has a hollow inner cavity, and a first force transmission key and a second force transmission key are arranged at a low and high position in the hollow inner cavity. Here, "low and high" refers to the relative plane of the substrate. The elastic element 4 is sleeved on the sleeve 21 of the pressing slider. The mounting base may include a substrate 61 and a limiting part. The limiting part is disposed on the substrate, and the substrate has a notch. The first movable latching structure is disposed between the first force transmission key and the second force transmission key and can be moved up and down relative to the plane of the substrate. The first movable latching structure can be disposed in the inner cavity by a guide limiting structure, that is, disposed on the pressing structure. It can be understood that the guide limiting structure can also ensure its smooth movement up and down relative to the plane of the substrate. The limiting part includes a left and right limiting part 62 that limits the left and right movement of the pressing slider 2, and a left and right limiting part disposed on the left and right limiting part. The lower limiting part 63 restricts the left-right and downward movement of the pressing slider and the downward movement of the elastic element. The lower limiting part 63 may be three parts including left, middle and right gaps. The base plate, the left and right limiting parts and the lower limiting part together form the main installation space of the pressing slider on the assembly base. The sleeve part of the pressing slider protrudes from the lower limiting part and is located outside the installation space. Specifically, it protrudes from the installation space through the gaps between the left, middle and right parts of the lower limiting part, and an enlarged part is provided at the end of this part to prevent the sleeve part from detaching from the lower limiting part. The elastic element is sleeved on the part of the sleeve part located in the installation space. The pressing slider can move relative to the assembly base and, through the action of the first force transmission key or the second force transmission key, causes the first movable buckle structure to move upward and retract or downward and pop out through the notch. The first movable buckle can also be stably connected and cooperated with the pressing structure through the guide limiting structure located at the notch of the base plate. Specifically, the principle of the position change of the first movable buckle structure in this embodiment is as follows: Figure 7 As shown in Figures a and b, more specifically... Figures 1 to 6The principle diagram of the shown pressing structure cooperating with the first movable buckle structure, in this embodiment, two first force transmission keys are arranged in the inner cavity of the pressing slider handle part, and the two first force transmission keys are arranged low relative to the base plate, and one second force transmission key is arranged high relative to the base plate, the first movable buckle structure includes a first force receiving surface 101 and a second force receiving surface 102, in use, the pressing slider 2 can drive the first movable buckle structure 2 to change the position during reciprocating movement, so that the adjustable buckle acts on the electronic switch 8, when the pressing slider is pressed down, the first movable buckle structure is driven to move upward relative to the base plate through the two first force transmission keys and the first force receiving surface 101 on the first movable buckle structure, at this time, the pressing slider is released, and the pressing slider applies force to the second force receiving surface 102 on the first movable buckle structure through the second force transmission key and the second force receiving surface 222, so that the first movable buckle structure moves downward relative to the base plate through the gap on the base plate, and the first movable buckle controls the electronic switch 8 through the upward and downward movement relative to the base plate.

[0058] The application also provides a device, in one possible embodiment, the device includes any of the above electronic switches, in one possible embodiment, the device includes any of the above pressing structures to realize other functions, in one embodiment, the device includes any of the above pressing structures and any of the above electronic switches, that is, in one possible embodiment, the device can include an electronic switch triggered by the pressing structure, in one possible embodiment, the device includes a special functional structure such as a movable male buckle or female buckle structure formed by the pressing structure, and in one possible embodiment, the device can include an electronic switch triggered by the pressing structure and a functional structure such as a movable male buckle or female buckle structure obtained by the pressing structure.

[0059] Further, in one possible embodiment, the device includes a movable male buckle or female buckle structure formed by the pressing structure.

[0060] As Figures 4 to 7 shown, Figure 4 a pressing structure and a movable buckle assembly diagram of an embodiment of the application, Figure 5 a structure diagram of a pressing structure and a first movable buckle assembly structure after being cut, which can be a part of the structure diagram after being cut along the symmetry line in the length direction of the pressing slider, Figure 4 a structure diagram after being enlarged locally at A in the embodiment, Figure 6 a structure diagram after being enlarged locally at A in the embodiment, Figure 5 a structure diagram after being enlarged locally at A in the embodiment, Figure 7 a principle diagram of a pressing structure and a movable buckle cooperating with the first movable buckle structure, specifically, as Figure 7 shown in a, b of the embodiment, which can be Figures 1 to 6The principle diagram of the shown pressing structure cooperating with the movable buckle is shown. In an embodiment, the device adopts any of the above-mentioned pressing structures to obtain a movable buckle. That is, a device includes a buckle structure, which can be a movable male buckle or female buckle structure obtained by any of the above-mentioned pressing structures. The pressing slider can include a hollow inner cavity. The first movable buckle can be arranged on the pressing slider of the pressing structure. The first movable buckle can be arranged on the pressing structure through the guide limiting structure or arranged on the assembly base plate through the guide limiting structure. It can be understood that the guide limiting structure can also ensure the stability of the movement of the first movable buckle up and down relative to the plane of the base plate. The reciprocating movement of the pressing slider drives the first movable buckle structure on the pressing slider to move relative to the plane of the assembly base plate to complete the buckling or disengagement of the buckle structure of the first movable buckle. Specifically, the handle 22 of the pressing slider 2 of the pressing structure can be provided with a hollow inner cavity. The inner cavity can be provided with two first force transmission keys and one second force transmission key. The first movable buckle 10 is arranged between the first force transmission key and the second force transmission key and can move up and down relative to the plane of the base plate. The upper part of the first movable buckle is provided with a hole for accommodating the second force transmission key. The first movable buckle can be arranged on the base plate of the assembly base. The base plate is provided with a notch corresponding to the movement track of the movable buckle. The elastic member 4 can be a spring. In use, the spring is first preassembled on the sleeve 21 of the pressing slider 2, and then the two are assembled into the assembly base 6 by pressing. More accurately, the spring is installed in the installation space surrounded by the base plate, the left and right limiting portions, and the lower end limiting portion. The anti-disengagement portion can prevent the pressing slider from disengaging. The left and right parts of the left and right limiting portions and the lower end limiting portion can limit the left and right movement of the pressing slider 2. The lower end limiting portion can also compress the spring in cooperation with the pressing slider. The limiting portion and the anti-disengagement portion cooperate to ensure the normal movement of the pressing structure. Figures 4-6 As shown, the pressing slider 2 can drive the first movable buckle 10 to move up and down relative to the plane of the base plate during reciprocating movement, forming an adjustable buckle. Figure 7 As shown, when the pressing slider 2 is pressed down, the first action surface 221 on the two first force transmission keys applies force to the two first force transmission surfaces 101 on the first movable buckle 10. The first movable buckle 10 moves up. When the pressing slider 2 is released, the second action surface 222 on the second force transmission key applies force to the second force transmission surface 102 on the first movable buckle 10 under the action of the spring 4, causing the first movable buckle 10 to move down.

[0061] As shown in Figure 8 , 9 In an embodiment, the device includes a buckle structure. The male buckle or female buckle structure of the buckle structure can be a movable male buckle or female buckle structure, that is, a second movable buckle. The second movable buckle, specifically the female buckle structure in the buckle structure, can be directly arranged on the pressing slider of the pressing structure. The schematic principle can be seen fromFigure 8 、 9 , in particular, the second movable buckle position 12 on the pressing structure can be matched with the buckle buckle structure 14, and the pressing slider 2 can be released from the buckle structure 14 matched with the second movable buckle position, and in particular, the buckle male buckle structure is buckled into the female buckle structure on the pressing slider to form a buckle with the pressing slider.

[0062] The above is only the preferred embodiment of the present application, not any form of limitation on the present application, although the present application has been disclosed as above, however, not to limit the present application, any skilled person in the art of the patent within the scope of the technical scheme of the present application, when can make some more changes or modifications of the above-mentioned technical content as equivalent embodiments, but whatever is not out of the content of the technical scheme of the present application, according to the technical essence of the present application, any simple modification, equivalent change and modification of the above-mentioned embodiments, still belongs to the scope of the present application.

Claims

1. A press structure characterized by, The application relates to a pressing structure. The pressing structure comprises: a pressing slider providing a stress interface; a spring sleeved on the pressing slider; an assembly base used for mounting the pressing slider after the spring is sleeved, the pressing slider is movably arranged in the assembly base, and the assembly base is provided with a structure preventing the pressing slider from being taken out. The assembly base comprises a base plate and a limiting part arranged on the base plate, the limiting part comprises left and right limiting parts limiting the left and right movement of the pressing slider, a lower end limiting part arranged below the left and right limiting parts and limiting the left and right and downward movement of the pressing slider and the downward movement of the spring, and the lower end limiting part comprises left, middle and right parts arranged in gaps. The pressing slider comprises: two sleeve parts, one end of the sleeve part protrudes from the lower end limiting part outside a mounting space, and the spring is sleeved with a part of the sleeve part located in the mounting space; and an enlarged part is arranged at the tail end of the sleeve part to prevent the sleeve part from being separated from the lower end limiting part, a handle part connected with the other end of the sleeve part, the sleeve part can be slidably mounted in the mounting space, and the handle part is matched with the lower end limiting part to press the spring and limit the movement of the spring.

2. The pressing structure according to claim 1, wherein 3. A press structure according to claim 1 or 2, wherein the base plate, the left and right limiting parts and the lower end limiting part jointly form a mounting space of the pressing slider in the assembly base.

4. The press structure according to claim 1 or 2, wherein The anti-extraction part of the assembly base preventing the pressing slider from being taken out is arranged on the left and right limiting parts.

5. The press structure according to claim 1 or 2, wherein The base plate, the left and right limiting parts, the lower end limiting part and the anti-extraction part are integrally formed.

6. A press structure characterized by, The base plate is a mounting bottom plate of a device. The application relates to a pressing structure. The pressing structure comprises: a pressing slider providing a stress interface, the pressing slider comprises a handle part provided with a hollow cavity, and first and second force transmission keys are arranged at the hollow cavity at different heights relative to the plane where the base plate is located, 7. An electronic switch, characterized by a spring sleeved on the pressing slider; 8. The electronic switch of claim 7, wherein, an assembly base used for mounting the pressing slider after the spring is sleeved, the pressing slider is movably arranged in the assembly base, and the assembly base is provided with a structure preventing the pressing slider from being taken out, the assembly base comprises a base plate, and the base plate is provided with a gap.

9. An apparatus, comprising: The application relates to a pressing structure. The reciprocating movement of the pressing slider of the pressing structure triggers a control electronic switch. The application relates to a pressing structure and a movable buckle. The application relates to a pressing structure. The pressing structure comprises: a pressing slider providing a stress interface, the pressing slider comprises a handle part and a sleeve part connected below the handle part, the handle part is provided with a hollow cavity, and first and second force transmission keys are arranged at the hollow cavity at different heights, a spring sleeved on the pressing slider; 10. A device according to claim 9, characterised in that an assembly base used for mounting the pressing slider after the spring is sleeved, the pressing slider is movably arranged in the assembly base, and the assembly base is provided with a structure preventing the pressing slider from being taken out, the assembly base comprises a base plate, and the base plate is provided with a gap, the movable buckle is arranged between the first and second force transmission keys and can be moved up and down relative to the plane where the base plate is located, the pressing slider can move relative to the assembly base and make the movable buckle structure move up through the gap or move down to be popped out through the action of the first or second force transmission key. The device comprises a movable male buckle or female buckle structure formed by the pressing structure.

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