Button film pasting device

Abstract

The embodiment of the utility model provides a key film pasting device, which comprises a positioning seat, the positioning seat is provided with a key film pasting opening, a positioning part and a film fixing part, and the film fixing part is respectively distributed with the key film pasting opening and the positioning part at intervals. Therefore, a user can perform film pasting on the key of the electronic equipment through the key film pasting opening, the positioning part is beneficial to positioning the position of the key film pasting of the electronic equipment, the film fixing part can fix the film assembly, the accuracy of the position of the key film pasting of the electronic equipment can be improved, the situation that the film assembly is scrapped due to the fact that the key film is not pasted in place is reduced, and the user experience is improved. And the film pasting efficiency of the keys of the electronic equipment can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of film pasting, in particular to a key film pasting device. Background Art

[0002] With the development of technology, electronic devices such as mobile phones and tablets have become widely used in people's daily lives, and people's demand for films for electronic devices has gradually increased.

[0003] The film sticking object of the film sticking device in the related art is the screen of the electronic device instead of the keys of the electronic device, so the keys can only be stuck with the film manually, and there is a situation where the film is not stuck in place. Utility Model Content

[0004] The embodiment of the utility model provides a key film sticking device to improve at least one of the above technical problems.

[0005] The implementation method of the utility model achieves the above-mentioned purpose through the following technical solutions.

[0006] The utility model provides a key film paster, which comprises a positioning seat, wherein the positioning seat is provided with a key film pasting opening, a positioning portion and a film fixing portion, and the film fixing portion is spaced apart from the key film pasting opening and the positioning portion.

[0007] In some embodiments, the positioning seat further includes a positioning side wall, and the positioning side wall is located on a side of the positioning portion away from the diaphragm fixing portion.

[0008] In some embodiments, the button film opening is located on the positioning side wall, and the button film opening passes through the positioning portion.

[0009] In some embodiments, the positioning seat includes a first side wall, a third side wall, and a second side wall connected in sequence, and at least one of the first side wall, the second side wall, and the third side wall is provided with the positioning side wall.

[0010] In some embodiments, the positioning seat is provided with an installation cavity and an installation opening, the installation cavity is connected to the key film opening and the installation opening, and the installation opening is spaced apart from the key film opening.

[0011] In some embodiments, the button film applicator further includes a film positioning member and a film assembly, wherein the film assembly is attached to a side of the film positioning member facing the positioning seat and opposite to the button film opening, and the film positioning member is provided with a mating portion mating with the film fixing portion.

[0012] In some embodiments, the membrane fixing portion includes a first clamping portion and a second clamping portion, the button film opening is located between the first clamping portion and the second clamping portion, the mating portion is provided with a first clamping port and a second clamping port, the first clamping portion is clamped in the first clamping port, and the second clamping portion is clamped in the second clamping port.

[0013] In some embodiments, the film positioning member and the positioning seat define a gap, and the gap is connected to the key film opening.

[0014] In some embodiments, the positioning portion includes a positioning surface, the diaphragm fixing portion is located on the positioning surface, the positioning seat includes a recessed portion and a convex portion, the button film opening passes through the positioning surface, the recessed portion is recessed in the positioning surface at a height greater than the thickness of the diaphragm assembly, and the convex portion is protruded in the positioning surface at a height greater than or equal to the thickness of the film positioning member.

[0015] In some embodiments, the film positioning member is provided with a fitting position and a handle position on one side facing the positioning seat, and the film assembly includes a release film and a protective film, the protective film is fitted to the fitting position, and the release film is fitted to the handle position and covers the protective film.

[0016] In some embodiments, the length dimension of the handle portion is greater than the length dimension of the fitting portion.

[0017] The key film applicator provided by the embodiment of the utility model has a positioning seat provided with a key film applicator opening, a positioning portion and a film fixing portion, and the film fixing portion is spaced apart from the key film applicator opening and the positioning portion. In this way, the positioning portion helps to locate the position of the key film applicator of the electronic device, and the film fixing portion can fix the film assembly. The user can apply the film to the keys of the electronic device through the key film applicator opening, which helps to improve the accuracy of the position of the key film applicator of the electronic device, reduces the situation where the film assembly is scrapped due to the key film not being in place, and also helps to improve the film applicator efficiency of the keys of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the implementation modes of the present invention, the drawings required for use in the description of the implementation modes will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the implementation modes of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 The schematic diagram of the structure of the key film sticking device provided by the embodiment of the utility model is shown.

[0020] Figure 2 Shows Figure 1 Schematic diagram of the structure of the positioning seat of the key film applicator.

[0021] Figure 3 Shows Figure 1 Schematic diagram of the structure of the key film applicator in the disassembled state.

[0022] Figure 4 Shows Figure 1 A schematic diagram of the structure of the key film applicator from another perspective.

[0023] Figure 5 Shows Figure 1 A schematic diagram of the structure of a film positioning component of a key film applicator.

[0024] Figure 6 Shows Figure 2 A schematic structural diagram of the positioning seat from another perspective.

[0025] Figure 7 Shows Figure 2 A schematic structural diagram of the positioning seat from another perspective.

[0026] Figure 8 Shows Figure 2 A schematic structural diagram of the positioning seat from another perspective. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the implementation scheme of the present utility model, the technical scheme in the implementation scheme of the present utility model will be clearly and completely described below in conjunction with the drawings in the implementation scheme of the present utility model. Obviously, the described implementation scheme is only a part of the implementation scheme of the present utility model, not all of the implementation schemes. Based on the implementation scheme in the implementation scheme of the present utility model, all other implementation schemes obtained by those skilled in the art without making creative work are within the scope of protection of the implementation scheme of the present utility model.

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] Please also read Figure 1 and Figure 2 The embodiment of the utility model provides a key film applicator 100, which includes a positioning seat 11, which is provided with a key film opening 111, a positioning portion 112 and a film fixing portion 115, and the film fixing portion 115 is spaced apart from the key film opening 111 and the positioning portion 112. The positioning portion 112 is suitable for locating the key position of the electronic device, and the key film opening 111 is suitable for being opposite to the key of the electronic device.

[0030] In this way, the user can apply the film to the keys of the electronic device through the key film opening 111, the positioning portion 112 helps to locate the position of the key film of the electronic device, and the film fixing portion 115 can fix the film assembly, which helps to facilitate the application of the film to the keys of the electronic device, and also helps to improve the accuracy of the position of the film on the keys of the electronic device, helps to reduce the situation where the film assembly is scrapped due to the key film not being in place, and also helps to improve the efficiency of applying the film to the keys of the electronic device.

[0031] In addition, the membrane fixing portion 115 is spaced apart from the key film opening 111 and the positioning portion 112, which helps reduce the mutual interference between the membrane fixing portion 115 and the key film opening 111 and the positioning portion 112, thereby helping to better improve the filming of the keys of the electronic device.

[0032] Exemplarily, when the keys of an electronic device need to be covered with a film, the positioning portion 112 can be used to locate the keys of the electronic device, and the keys of the electronic device can be made to face the key film opening 111, thereby achieving the positioning of the keys of the electronic device, and then the diaphragm assembly can be fixed to the diaphragm fixing portion 115, so that the protective film of the diaphragm assembly can be attached to the keys of the electronic device from the key film opening 111, thereby achieving the covering of the keys of the electronic device.

[0033] Please also read Figures 1 to 3 In some embodiments, the button film applicator 100 further includes a film positioning member 12 and a membrane assembly 13. The membrane assembly 13 is attached to the side of the film positioning member 12 facing the positioning seat 11 and opposite to the button film opening 111. The film positioning member 12 is provided with a mating portion 121 that cooperates with the membrane fixing portion 115.

[0034] Thus, when the film fixing portion 115 is matched with the matching portion 121, the film positioning member 12 and the positioning seat 11 can be relatively fixed, so that the film positioning member 12 and the electronic device can be relatively fixed, which is convenient for fixing the film positioning member 12. When the film assembly 13 is attached to the film positioning member 12, it can ensure that the film assembly 13 and the key area of ​​the electronic device are accurately corresponding, which helps to reduce the skew of the film.

[0035] In some embodiments, the diaphragm fixing portion 115 and the matching portion 121 can be engaged with each other in a block-to-block manner.

[0036] For example, the diaphragm fixing portion 115 may include a convex rib, which may be convexly provided on the diaphragm fixing portion 115, for example, the convex rib may be convexly provided on the surface of the diaphragm fixing portion 115 facing the film positioning member 12. The matching portion 121 may include a hook, which may be convexly provided on the film positioning member 12, for example, the hook may be convexly provided on the surface of the film positioning member 12 facing the positioning seat 11, and the hook is opposite to the convex rib and can hook the convex rib, so that the diaphragm fixing portion 115 and the film positioning member 12 can be engaged with each other.

[0037] For another example, the diaphragm fixing portion 115 may include a hook, which may be protruding from the diaphragm fixing portion 115, for example, the hook may be protruding from the surface of the diaphragm fixing portion 115 facing the film positioning member 12. The matching portion 121 may include a convex rib, which may be protruding from the film positioning member 12, for example, the convex rib may be protruding from the surface of the film positioning member 12 facing the positioning seat 11, and the hook is opposite to the convex rib and can hook the convex rib, so that the diaphragm fixing portion 115 and the film positioning member 12 can be engaged with each other.

[0038] For another example, the diaphragm fixing portion 115 and the matching portion 121 may both include hooks, and the hooks of the two can be hooked with each other to achieve mutual engagement between the diaphragm fixing portion 115 and the film positioning member 12 .

[0039] In some embodiments, the diaphragm fixing portion 115 and the matching portion 121 may also be engaged with each other in the form of a block and a groove.

[0040] For example, the membrane fixing portion 115 may include a hook, which may be protruding from the membrane fixing portion 115, for example, the hook may be protruding from the surface of the membrane fixing portion 115 facing the film positioning member 12. The matching portion 121 may be provided with a bayonet, and the hook is opposite to the bayonet and can be embedded in the bayonet, so that the membrane fixing portion 115 and the film positioning member 12 can be engaged.

[0041] For another example, the diaphragm fixing portion 115 may be provided with a bayonet, and the matching portion 121 may be provided with a hook. The hook may be protruded from the surface of the film positioning piece 12 facing the positioning seat 11. The hook is opposite to the bayonet and can be embedded in the bayonet, so that the diaphragm fixing portion 115 and the film positioning piece 12 can be engaged with each other.

[0042] In other embodiments, the diaphragm fixing portion 115 and the matching portion 121 may also be engaged with each other in other ways.

[0043] The following description will be made by taking the example that the diaphragm fixing portion 115 includes a hook and the matching portion 121 is provided with a bayonet.

[0044] Please also read Figure 2 and Figure 3In some embodiments, the diaphragm fixing portion 115 may include a first clamping portion 1151 and a second clamping portion 1152, the key film opening 111 is located between the first clamping portion 1151 and the second clamping portion 1152, the matching portion 121 is provided with a first clamping port 1211 and a second clamping port 1212, the first clamping portion 1151 is clamped in the first clamping port 1211, and the second clamping portion 1152 is clamped in the second clamping port 1212.

[0045] This helps to improve the stability of the film positioning member 12 when assembled on the positioning seat 11 , helps to reduce the situation where the film positioning member 12 is loosened from the positioning seat 11 , and thus helps to ensure the positioning effect of the film positioning member 12 on the diaphragm assembly 13 .

[0046] Please also read Figure 1 , Figure 2 and Figure 4 In some embodiments, the film positioning member 12 and the positioning seat 11 define a gap 14 , and the gap 14 is connected to the key film opening 111 .

[0047] In this way, when applying the film, the film assembly 13 will not immediately contact the keys of the electronic device, so that the user can adjust the position of the keys of the electronic device and / or the film assembly 13. The user can observe the alignment of the film assembly 13 and the key film opening 111 through the gap 14 and make adaptive adjustments to the keys of the electronic device and / or the film assembly 13, which helps to improve the accuracy of the film application of the key film applicator 100 and also helps to reduce the situation where the film assembly 13 is scrapped due to the improper application of the key film.

[0048] In addition, the gap 14 can also provide space for the film positioning member 12 to deform. The user can press the film positioning member 12 to deform the diaphragm assembly 13 to drive the diaphragm assembly 13 closer to the buttons of the electronic device and finally fit the buttons of the electronic device, which also helps to reduce the generation of bubbles between the diaphragm assembly and the buttons of the electronic device.

[0049] In some embodiments, the positioning portion 112 includes a positioning surface 1121, the diaphragm fixing portion 115 is located on the positioning surface 1121, and the positioning seat 11 includes a recess 117 and a protrusion 116, and the protrusion 116, the recess 117 and the positioning surface 1121 can be substantially stepped. The key film opening 111 passes through the positioning surface 1121, and the height of the recess 117 recessed in the positioning surface 1121 is greater than the thickness of the diaphragm assembly 13.

[0050] In this way, when the film positioning member 12 and the diaphragm assembly 13 are assembled on the positioning seat 11, the diaphragm assembly 13 and the keys of the electronic device can be located in the recess 117. At this time, the keys of the electronic device are opposite to the diaphragm assembly 13. The user can press the film positioning member 12 to deform the diaphragm assembly 13 to drive the diaphragm assembly 13 to approach the keys of the electronic device and finally fit the keys of the electronic device.

[0051] In some embodiments, the height of the protrusion 116 protruding from the positioning surface 1121 is greater than or equal to the thickness of the film positioning member 12 .

[0052] Thus, when the film positioning member 12 is assembled on the positioning seat 11 , the film positioning member 12 can be located in the protrusion 116 , which helps to reduce the situation where the film positioning member 12 protrudes from the positioning surface 1121 and helps to improve the flatness of the appearance of the film positioning device 100 .

[0053] The recess 117 and the film positioning member 12 define a gap 14 , so that the key of the electronic device is opposite to the gap 14 .

[0054] This helps to increase the space of the gap 14 so that the film positioning member 12 can have enough deformation space for better deformation, and also helps the user to better observe the alignment of the membrane assembly 13 and the key film opening 111 through the gap 14, thereby helping to better improve the accuracy of the key film applicator 100 in film application.

[0055] For example, when it is necessary to apply a film to the keys of the electronic device, the membrane assembly 13 can be attached to the side of the film positioning member 12 facing the positioning seat 11, and then the film positioning member 12 is connected to the membrane fixing portion 115 of the positioning seat 11 through the matching portion 121, and the membrane assembly 13 is aligned with the key film opening 111. The user can observe the alignment of the membrane assembly 13 and the key film opening 111 through the gap 14. If the membrane assembly 13 is accurately aligned with the key film opening 111, the membrane positioning member 12 can be pressed to deform the membrane positioning member 12 and drive the membrane assembly 13 to approach the key of the electronic device, and finally attached to the key of the electronic device; if the membrane assembly 13 is not accurately aligned with the key film opening 111, the membrane assembly 13 can be attached to the position of the membrane positioning member 12 by adjusting the membrane assembly 13 until the membrane assembly 13 is accurately aligned with the key film opening 111, and finally the membrane assembly 13 is attached to the key of the electronic device.

[0056] Please also read Figures 3 to 5In some embodiments, a fitting position 122 and a handle position 123 are provided on one side of the film positioning member 12 facing the positioning seat 11, and the diaphragm assembly 13 may include a release film 131 and a protective film 132, the protective film 132 is fitted to the fitting position 122, the release film 131 is fitted to the handle position 123 and covers the protective film 132, and the release film 131 can protect the protective film 132 of the diaphragm assembly 13.

[0057] This helps ensure that the protective film 132 can be aligned with the key film opening 111, thereby helping to improve the accuracy of the protective film 132 and the key position of the electronic device. The release film 131 and the protective film 132 can be attached to the corresponding positions respectively, which helps to ensure the accuracy of the attachment position of the membrane assembly 13.

[0058] In some embodiments, the length of the handle portion 123 is greater than the length of the attachment portion 122. In this way, it is convenient for the user to tear off the release film 131 through the handle portion 123, thereby facilitating the attachment of the film to the buttons of the electronic device.

[0059] Exemplarily, when it is necessary to apply a film to the buttons of an electronic device, the membrane assembly 13 can be attached to the handle position 123 as a whole and the protective film 132 can be attached to the attachment position 122. At this time, the release film 131 covers the protective film 132. Then, the release film 131 is torn off, and the film positioning member 12 is connected to the membrane fixing portion 115 of the positioning seat 11 through the matching portion 121. At this time, the protective film 132 is aligned with the button film opening 111. By pressing the film positioning member 12, the film positioning member 12 is deformed to drive the protective film 132 to approach the buttons of the electronic device, and finally attached to the buttons of the electronic device.

[0060] An adhesive layer (not shown) is disposed between the protective film 132 and the release film 131 , and the release film 131 is adhered to the protective film 132 through the adhesive layer to ensure that the protective film 132 is not contaminated.

[0061] In some embodiments, the positioning seat 11 further includes a positioning side wall 113, which is located on a side of the positioning portion 112 away from the diaphragm fixing portion 115. When the positioning seat 11 is assembled in an electronic device, the positioning side wall 113 can be used to fit the wall surface of the electronic device.

[0062] In this way, the positioning side wall 113 can locate the position of the key film of the electronic device. When the positioning seat 11 is assembled on the electronic device, the positioning side wall 113 can fit the wall of the electronic device, which helps to increase the contact friction between the positioning seat 11 and the electronic device, and helps to reduce the movement of the positioning seat 11 on the electronic device, so that the positioning seat 11 can be relatively fixed to the electronic device, so that the key film opening 111 can be aligned with the key of the electronic device.

[0063] Please also read Figures 6 to 8 In some embodiments, the positioning seat 11 may include a first side wall 1131, a second side wall 1132, a third side wall 1133 and a fourth side wall 1134, the first side wall 1131 is opposite to the second side wall 1132, the third side wall 1133 is connected to the first side wall 1131 and the second side wall 1132, the fourth side wall 1134 is connected to the first side wall 1131, the second side wall 1132 and the third side wall 1133, and at least one of the first side wall 1131, the second side wall 1132, the third side wall 1133 and the fourth side wall 1134 is provided with a positioning side wall 113. Preferably, the key film opening 111 is located on the positioning side wall 113 of the third side wall 1133, and the key film opening 111 passes through the positioning portion 112.

[0064] Exemplarily, the first side wall 1131 may be provided with a positioning side wall 113; for another example, the first side wall 1131 and the second side wall 1132 may both be provided with a positioning side wall 113; for another example, the second side wall 1132 and the third side wall 1133 may both be provided with a positioning side wall 113; for another example, the first side wall 1131, the second side wall 1132 and the third side wall 1133 may all be provided with a positioning side wall 113; for another example, the first side wall 1131, the second side wall 1132, the third side wall 1133 and the fourth side wall 1134 may all be provided with a positioning side wall 113. The specific settings may be made according to actual conditions.

[0065] In this way, the positioning side wall 113 can locate the position of the wall surface of the electronic device, and then locate the position of the key film of the electronic device. The positioning side wall 113 can be attached to the wall surface of the electronic device to increase the contact area between the positioning seat 11 and the electronic device, thereby helping to increase the contact friction between the positioning seat 11 and the electronic device, thereby helping to reduce the situation where the positioning seat 11 is loosened from the electronic device.

[0066] In some embodiments, the first side wall 1131 , the second side wall 1132 , the third side wall 1133 , and the fourth side wall 1134 may all be provided with a positioning side wall 113 , and the key film opening 111 is located on the third side wall 1133 .

[0067] In this way, the positioning sidewalls 113 of the first sidewall 1131, the second sidewall 1132, the third sidewall 1133 and the fourth sidewall 1134 can contact the four wall surfaces of the electronic device, which helps to better increase the contact area between the positioning seat 11 and the electronic device to increase the contact friction between the positioning seat 11 and the electronic device, thereby helping to better reduce the situation where the positioning seat 11 is loosened from the electronic device. The positioning sidewalls 113 of the first sidewall 1131, the second sidewall 1132, the third sidewall 1133 and the fourth sidewall 1134 can respectively limit the movement of the positioning seat 11 from four directions, so that the positioning seat 11 can be better fixed to the electronic device.

[0068] In some embodiments, the positioning seat 11 is provided with an installation cavity 1135 and an installation opening 114, the installation cavity 1135 is connected to the key film opening 111 and the installation opening 114, and the installation opening 114 is spaced apart from the key film opening 111. The first side wall 1131, the second side wall 1132, the third side wall 1133 and the fourth side wall 1134 can define and form the installation cavity 1135.

[0069] In this way, the positioning base 11 can be installed on the electronic device through the installation opening 114 , which helps to facilitate the installation of the positioning base 11 .

[0070] Exemplarily, when it is necessary to apply a film to the keys of an electronic device, the positioning seat 11 can be installed on the electronic device through the installation opening 114, so that the positioning side wall 113 of the first side wall 1131, the second side wall 1132, the third side wall 1133 and the fourth side wall 1134 are attached to the wall surface of the electronic device and the key film opening 111 is aligned with the key of the electronic device. Finally, the membrane assembly 13, such as the protective film 132, is attached to the key of the electronic device through the key film opening 111 to achieve the application of the film to the keys of the electronic device.

[0071] In summary, the key film applicator 100 provided by the embodiment of the utility model has a positioning seat 11 provided with a key film applicator opening 111, a positioning portion 112 and a film fixing portion 115, and the film fixing portion 115 is spaced apart from the key film applicator opening 111 and the positioning portion 112. In this way, the user can apply a film to the keys of the electronic device through the key film applicator opening 111, the positioning portion 112 helps to locate the position of the film applicator for the keys of the electronic device, and the film fixing portion 115 can fix the film assembly 13, which helps to facilitate the application of the film to the keys of the electronic device, and also helps to improve the accuracy of the position of the film applicator for the keys of the electronic device, helps to reduce the situation where the film applicator 13 is scrapped due to the failure of the key applicator to be in place, and also helps to improve the efficiency of the film applicator for the keys of the electronic device.

[0072] In the embodiments of the present invention, unless otherwise clearly specified or limited, the terms "assembly" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements, it can be only surface contact, or it can be connected through the surface contact of an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0073] In addition, the terms "first", "second", etc. are only used to distinguish descriptions and cannot be understood as specific or special structures. The description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In the embodiments of the utility model, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the embodiments of the utility model and the features of different embodiments or examples without contradiction.

[0074] The above embodiments are only used to illustrate the technical solutions of the embodiments of the present utility model, rather than to limit them. Although the embodiments of the present utility model are described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of each embodiment of the embodiments of the present utility model, and should all be included in the protection scope of the embodiments of the present utility model.

Claims

1. A key film applicator, characterized in that: include: A positioning seat is provided with a key film opening, a positioning portion and a membrane fixing portion, and the membrane fixing portion is spaced apart from the key film opening and the positioning portion respectively.

2. The key film sticking device according to claim 1, characterized in that: The positioning seat further comprises a positioning side wall, and the positioning side wall is located at a side of the positioning portion away from the diaphragm fixing portion.

3. The key film sticking device according to claim 2, characterized in that: The key film opening is located on the positioning side wall, and the key film opening passes through the positioning portion.

4. The key film sticking device according to claim 2, characterized in that: The positioning seat comprises a first side wall, a third side wall and a second side wall connected in sequence, and at least one of the first side wall, the second side wall and the third side wall is provided with the positioning side wall.

5. The key film applicator according to claim 1, characterized in that: The positioning seat is provided with an installation cavity and an installation opening, the installation cavity is connected with the key film opening and the installation opening, and the installation opening is spaced apart from the key film opening.

6. The key film sticking device according to any one of claims 1 to 5, characterized in that: The button film sticking device further comprises a film positioning member and a film assembly, wherein the film assembly is attached to a side of the film positioning member facing the positioning seat and opposite to the button film opening, and the film positioning member is provided with a matching portion matching with the film fixing portion.

7. The key film sticking device according to claim 6, characterized in that: The membrane fixing portion includes a first clamping portion and a second clamping portion, the key film opening is located between the first clamping portion and the second clamping portion, the matching portion is provided with a first clamping port and a second clamping port, the first clamping portion is clamped in the first clamping port, and the second clamping portion is clamped in the second clamping port.

8. The key film applicator according to claim 6, characterized in that: The film positioning piece and the positioning seat define a gap, and the gap is connected to the key film opening.

9. The key film sticking device according to claim 6, characterized in that: The positioning portion includes a positioning surface, the diaphragm fixing portion is located on the positioning surface, the positioning seat includes a recessed portion and a convex portion, the key film opening passes through the positioning surface, the recessed portion is recessed on the positioning surface at a height greater than the thickness of the diaphragm assembly, and the convex portion is protruded on the positioning surface at a height greater than or equal to the thickness of the film positioning member.

10. The key film applicator according to claim 6, characterized in that: The film positioning piece is provided with a fitting position and a handle position on one side facing the positioning seat, and the film assembly includes a release film and a protective film, the protective film is fitted to the fitting position, and the release film is fitted to the handle position and covers the protective film.

11. The key film applicator according to claim 10, characterized in that: The length dimension of the handle portion is greater than the length dimension of the fitting portion.

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