Mobile phone screen fixing tool

Abstract

The application discloses a mobile phone screen fixing tool, which comprises a bottom plate and a limiting fixing assembly installed on the bottom plate; the limiting fixing assembly comprises a clamping air bag and two L-shaped plates, the two L-shaped plates are symmetrically installed on the two sides of the upper end surface of the bottom plate, the two L-shaped plates and the bottom plate form a convex character-shaped fixing cavity, the clamping air bag is matched with the shape of the fixing cavity, and the clamping air bag is communicated with the air source outside. Through the bottom plate, the two L-shaped plates and the clamping air bag, the mobile phone can be fixed in the horizontal and vertical directions at the same time, the fixing is more convenient, the clamping air bag has a certain buffering effect, the probability of damage of the mobile phone screen can be effectively reduced, and since the clamping air bag has a certain deformation capacity, the scheme can fix mobile phone screens with various widths and thicknesses, and has high universal performance.

Description

Technical Field

[0001] This invention relates to the field of fixing device technology, and more specifically to a mobile phone screen fixing fixture. Background Technology

[0002] With the development of technology, smartphones have made great strides, and people's lives and work are becoming increasingly inseparable from smartphones. Among them, the phone screen is one of the most important components of a smartphone.

[0003] Mobile phone screens rely heavily on fixtures during production and testing. Fixtures facilitate processing and testing of the screens. However, mobile phone screens are easily damaged, and traditional fixtures use rigid methods to fix them, resulting in a high defect rate. Summary of the Invention

[0004] The problem this invention aims to solve is to provide a mobile phone screen fixing fixture. By setting a base plate, two L-shaped plates, and a clamping airbag, when fixing the mobile phone, an external air source is controlled to ventilate the clamping airbag. After ventilation, the clamping airbag expands. Due to the limiting effect of the base plate and the two L-shaped plates, the clamping airbag can only expand in the direction away from the base plate and L-shaped plates, thus achieving simultaneous horizontal and vertical limiting and fixing of the mobile phone, making fixing more convenient. Simultaneously, the clamping airbag has a certain buffering effect, effectively reducing the probability of damage to the mobile phone screen. Furthermore, because the clamping airbag has a certain deformation capability, this solution can fix mobile phone screens of various widths and thicknesses, exhibiting high versatility.

[0005] The technical solution provided by the present invention to solve the above problems is as follows: a mobile phone screen fixing fixture, including a base plate and a limiting fixing component installed on the base plate; the limiting fixing component includes a clamping airbag and two L-shaped plates, the two L-shaped plates are symmetrically installed on both sides of the upper surface of the base plate, the two L-shaped plates and the base plate form a convex fixing cavity, the clamping airbag is adapted to the shape of the fixing cavity, and the clamping airbag is connected to an external air source.

[0006] Preferably, the clamping airbag includes a horizontal section and L-shaped limiting sections disposed at both ends of the horizontal section.

[0007] Preferably, the L-shaped limiting segment includes a limiting segment one and a limiting segment two, and a pleated segment is provided at the connection between the limiting segment one and the limiting segment two, which can be unfolded when inflated.

[0008] Preferably, the limiting and fixing assembly further includes a pressure relief mechanism, which is used to relieve pressure when the air pressure inside the clamping airbag is too high.

[0009] Preferably, the pressure relief mechanism comprises an air outlet pipe, a valve seat, a piston and a spring, the valve seat is internally provided with a movable cavity, the piston is movably installed in the movable cavity, one end of the air outlet pipe is connected with the clamping air bag, the other end is communicated with the movable cavity, one end of the spring is connected with the end of the piston away from the air outlet pipe, the other end is connected with the bottom of the movable cavity, the valve seat is provided with a vertical pressure relief hole communicated with the movable cavity, when the air pressure in the clamping air bag is too high, the air in the clamping air bag extrudes the piston to move in the movable cavity, and then the air flows out from the pressure relief hole.

[0010] Preferably, the circumference of the piston is provided with an annular mounting groove, and an annular sealing ring is mounted in the annular mounting groove.

[0011] Preferably, the valve seat is further provided with an air pipe, the clamping air bag is provided with an air inlet pipe, one end of the air inlet pipe away from the clamping air bag is communicated with the air pipe, and the air pipe is provided with a control valve.

[0012] Preferably, the pressure relief mechanism further comprises a transmission assembly, the piston drives the transmission assembly to operate when moving, and the transmission assembly drives the control valve to control the on-off of the air inlet pipe.

[0013] Preferably, the transmission assembly comprises a transmission rack and a transmission gear, the valve seat is provided with a mounting cavity communicated with the movable cavity, the transmission rack is horizontally arranged at one end of the piston, and the transmission gear is rotatably arranged in the mounting cavity, and the transmission gear is in transmission connection with a control rod of the control valve.

[0014] Preferably, a synchronous wheel one is coaxially arranged on the transmission gear, a synchronous wheel two is coaxially arranged on the control rod of the control valve, and the synchronous wheel one and the synchronous wheel two are connected through a synchronous belt.

[0015] Compared with the prior art, the application has the advantages that: by arranging the bottom plate, the two L-shaped plates and the clamping air bag, when fixing the mobile phone, the air source outside is controlled to ventilate the clamping air bag, the clamping air bag expands after being ventilated, and due to the limiting of the bottom plate and the two L-shaped plates, the clamping air bag can only expand away from the bottom plate and the L-shaped plates, so that the mobile phone is fixed in the horizontal and vertical directions at the same time, the fixing is more convenient, the clamping air bag has a certain buffering effect, can form a flexible fixing to the mobile phone screen, thereby effectively reducing the probability of damage to the mobile phone screen, and due to the certain deformation capacity of the clamping air bag, the scheme can fix mobile phone screens of various widths and thicknesses, and has high universal performance. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the application, and form a part of the application. The schematic embodiments of the application and the descriptions thereof are used to explain the application, and do not constitute improper limitations on the application.

[0017] Figure 1 is a front view of the present application;

[0018] Figure 2 is a top view of the present application;

[0019] Figure 3 is a sectional view of the pressure relief mechanism of the present application;

[0020] Figure 4 is a sectional view of the pressure relief mechanism of the present application when pressure relief is in progress;

[0021] Figure 5 is Figure 1 is an enlarged view of A in FIG. 1;

[0022] Figure 6 is a schematic view of the present application when fixing a mobile phone screen.

[0023] BRIEF DESCRIPTION OF THE DRAWINGS 1, L-shaped plate, 2, bottom plate, 3, valve seat, 4, clamping air bag, 5, limiting plate, 6, wrinkle section, 7, pressure relief hole, 8, movable cavity, 9, spring, 10, mounting cavity, 11, transmission gear, 12, synchronous wheel one, 13, air pipe, 14, control valve, 15, synchronous wheel two, 16, air inlet pipe, 17, air outlet pipe, 18, piston, 19, annular sealing ring, 20, transmission rack, 21, limiting section one, 22, limiting section two, 23, mobile phone screen, 24, synchronous belt. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be described in detail hereinafter with reference to the accompanying drawings and embodiments, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented.

[0025] In the description of the present application, it should be noted that for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The orientation and positional relationship shown in the drawing is based on the orientation or positional relationship shown in the drawing, and is only for the convenience of describing the present application 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 cannot be understood as limiting the specific protection scope of the present application.

[0026] In addition, the terms "first", "second", "third", etc. are used herein only to describe various instances, and are not used to indicate or imply relative importance or a number of technical features. Thus, the terms "first", "second", etc. can explicitly or implicitly include one or more of the features, and the meaning of "several" in the description of the present application is two or more, unless otherwise specifically limited.

[0027] In the present application, unless otherwise specifically defined and limited, the terms "assembly", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or connected through an intermediate medium, or connected internally between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] It should be understood that the terms "include" and "contain" as used in the specification and the appended claims indicate the presence of the described features, whole, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, whole, steps, operations, elements, components and / or sets thereof.

[0029] It should also be understood that the terms used in the specification of the embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present application. As used in the specification and the appended claims of the present application, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0030] The specific embodiments of the present application are shown in the drawings, a mobile phone screen fixing tool, comprising a bottom plate 2 and a limiting fixing assembly installed on the bottom plate 2; the limiting fixing assembly comprises a clamping air bag 4 and two L-shaped plates 1, two L-shaped plates 1 are symmetrically installed on both sides of the upper end surface of the bottom plate 2, two L-shaped plates 1 and the bottom plate 2 form a convex-shaped fixing cavity, the clamping air bag 4 is matched with the shape of the fixing cavity, and the clamping air bag 4 is communicated with the air source outside.

[0031] Among them, in order to more conveniently position the mobile phone screen, a limiting plate is further arranged on one side of the bottom plate, and the limiting plate is perpendicular to the two L-shaped plates.

[0032] When fixing the mobile phone screen, the mobile phone screen is first inserted into the fixing cavity from one side of the bottom plate until the side of the mobile phone screen contacts the limiting plate, then the external gas source is controlled to ventilate the clamping air bag, the clamping air bag is inflated after being ventilated, and due to the limiting of the bottom plate and the two L-shaped plates, the clamping air bag can only expand away from the bottom plate and the L-shaped plates, so that the mobile phone screen is fixed in the horizontal and vertical directions at the same time, the fixing is more convenient, the clamping air bag has a certain buffering effect, and the probability of damage to the mobile phone screen can be effectively reduced, and due to the arrangement of the clamping air bag, the mobile phone screen with various widths and thicknesses can be fixed, that is, the scheme has high universality.

[0033] Specifically as shown in Figure 1 and Figure 5 The clamping air bag 4 includes a horizontal section and L-shaped limiting sections arranged at two ends of the horizontal section; more specifically, the L-shaped limiting sections include a limiting section one 21 and a limiting section two 22, and a wrinkle section 6 is arranged at the connection of the limiting section one 21 and the limiting section two 22, which can be unfolded when inflated.

[0034] In the prior art, the curved screen electronic device capable of displaying pictures on the front and side surfaces of the electronic device has become a competitive field of major manufacturers. The mobile phone curved screen, that is, the four sides of the mobile phone screen have a certain arc transition, which will cause the sides of the curved screen to be not easy to fix.

[0035] In the present scheme, the wrinkle section 6 is arranged at the connection of the limiting section one 21 and the limiting section two 22, which can be unfolded when inflated, so that part of the wrinkle section one can well fit the two arc-shaped sides of the curved screen when fixing the curved screen, thereby increasing the stability of fixing the mobile phone screen; and it should be noted that since the present scheme adopts the air bag mode for fixing, the surface of the air bag pressed by the gas is in contact with the mobile phone screen during fixing, and the wrinkle section has a certain ductility, so that the side of the mobile phone screen can be in contact with the side of the mobile phone screen when fixing the normal mobile phone screen.

[0036] It should be noted that due to different requirements, the specifications of the mobile phone screen are different, some mobile phone screens are thick, and if the clamping air bag is still supplied with gas according to the normal gas supply amount, the pressure in the air bag will increase, and the air bag will be damaged or the clamping air bag will be damaged due to the excessive pressure in the air bag.

[0037] Therefore, in the embodiment, the limiting and fixing assembly further includes a pressure relief mechanism for relieving pressure when the pressure in the clamping air bag 4 is too high.

[0038] Specifically, the pressure relief mechanism comprises an air outlet pipe 17, a valve seat 3, a piston 18 and a spring 9, the valve seat 3 is provided with a movable cavity 8, the piston 18 is movably installed in the movable cavity 8, one end of the air outlet pipe 17 is connected with the clamping air bag 4, and the other end is communicated with the movable cavity 8, one end of the spring 9 is connected with the end of the piston 18 away from the air outlet pipe 17, and the other end is connected with the bottom of the movable cavity 8, the valve seat 3 is provided with a vertical pressure relief hole 7, the pressure relief hole 7 is communicated with the movable cavity 8, when the air pressure in the clamping air bag 4 is too high, the gas in the clamping air bag 4 extrudes the piston 18 to move in the movable cavity 8, and then the gas flows out from the pressure relief hole 7.

[0039] In the above scheme, when the spring is specifically designed, according to the spring elastic force calculation formula F=kx, wherein: k is the elastic coefficient, and x is the deformation amount, only the distance from the left end of the movable cavity to the pressure relief hole (the deformation amount of the spring) multiplied by the elastic coefficient K of the spring is equal to or slightly less than the set maximum pressure.

[0040] In order to improve the sealing performance between the piston and the movable cavity, prevent the gas from leaking out of the gap between the piston and the movable cavity, an annular mounting groove is arranged on the circumferential surface of the piston 18, and an annular sealing ring 19 is mounted in the annular mounting groove, and the sealing performance between the piston and the movable cavity can be effectively improved through the annular sealing ring.

[0041] The valve seat 3 is further provided with an air pipe 13, the clamping air bag 4 is provided with an air inlet pipe 16, one end of the air inlet pipe 16 away from the clamping air bag 4 is communicated with the air pipe 13, and the air pipe 13 is provided with a control valve 14, specifically, an external air source is communicated with one end of the air pipe, the gas enters the air inlet pipe through the air pipe and then finally flows into the clamping air bag.

[0042] In the embodiment, the pressure relief mechanism further comprises a transmission assembly, the piston 18 drives the transmission assembly to operate when moving, and in turn drives the control valve 14 to control the on-off of the air inlet pipe 16.

[0043] Further, the transmission assembly comprises a transmission rack 20 and a transmission gear 11, the valve seat 3 is provided with a mounting cavity 10, the mounting cavity 10 is communicated with the movable cavity 8, the transmission rack 20 is horizontally arranged at one end of the piston 18, the transmission gear 11 is rotatably arranged in the mounting cavity 10, and the transmission gear 11 is in transmission connection with the control rod of the control valve 14.

[0044] Specifically, the specific transmission structure of the transmission gear and the control rod is that a synchronous wheel one 12 is coaxially arranged on the transmission gear 11, a synchronous wheel two 15 is coaxially arranged on the control rod of the control valve 14, and the synchronous wheel one 12 and the synchronous wheel two 15 are connected through a synchronous belt 24.

[0045] Wherein, due to the gas in the air bag has a certain pressure, in the process of feeding the clamping air bag, the piston will also move to the right, in order to the transmission assembly drive the control rod rotation caused by the gas feeding terminal, therefore, in the scheme, the piston needs to move to the right a certain distance (the distance can be calculated according to the experiment plus) after the transmission gear meshing with the transmission rack.

[0046] It should be noted that, in the above scheme, due to the relatively small resistance caused by the transmission assembly, the influence on the movement of the piston can be ignored.

[0047] Wherein, when the air pressure in the clamping air bag is too large, the pressure relief mechanism is opened, and the gas flows out from the pressure relief hole, if the clamping air bag is still inflated at this time, it will cause the continuous opening of the pressure relief mechanism, causing the waste of gas, and also easy to cause the clamping air bag to be continuously under high pressure, affecting the service life, through the above scheme, when the pressure relief mechanism starts, the piston moves to the right, the transmission rack and the transmission gear meshing, the transmission gear rotates, and the synchronous wheel coaxially arranged with the transmission gear drives the synchronous wheel two to rotate, and then drives the control rod to rotate, the control rod rotates and controls the control valve to close, thereby interrupting the gas feeding to the clamping air bag.

[0048] The above scheme can interrupt the gas feeding to the clamping air bag by opening the pressure relief valve and driving the control rod to rotate and close the control valve, which can close the gas feeding while pressure relief, can prevent the continuous opening of the pressure relief mechanism, will not cause the waste of gas, and at the same time, can prevent the clamping air bag from being continuously under high pressure, affecting the service life.

[0049] Wherein, the specific structure of the control valve belongs to the prior art, and the rotation of the control rod can control the flow of gas through the control valve, therefore, the specific structure will not be described again.

[0050] The above only describes the best embodiment of the present application, but cannot be understood as the limitation of the claims. The present application is not limited to the above embodiments, and the specific structure allows changes. Any changes made within the protection scope of the independent claims of the present application are within the protection scope of the present application.

Claims

1. A mobile phone screen fixing tool, comprising a base plate (2) and a limiting and fixing assembly installed on the base plate (2); characterized in that: The limiting and fixing assembly comprises a clamping air bag (4) and two L-shaped plates (1), the two L-shaped plates (1) are symmetrically installed on two sides of the upper end face of a bottom plate (2), the two L-shaped plates (1) and the bottom plate (2) form a convex-shaped fixing cavity, the clamping air bag (4) is matched with the shape of the fixing cavity, and the clamping air bag (4) is communicated with an air source outside; The clamping air bag (4) comprises a horizontal section and L-shaped limiting sections arranged at two ends of the horizontal section; the L-shaped limiting sections comprise a limiting section one (21) and a limiting section two (22), a wrinkle section (6) is arranged at the connection position of the limiting section one (21) and the limiting section two (22), and the wrinkle section (6) can be unfolded when being inflated. The limiting and fixing assembly further comprises a pressure relief mechanism, the pressure relief mechanism is used for pressure relief when the air pressure in the clamping air bag (4) is too high; the pressure relief mechanism comprises an air outlet pipe (17), a valve seat (3), a piston (18) and a spring (9), the valve seat (3) is provided with a movable cavity (8) therein, the piston (18) is movably installed in the movable cavity (8), one end of the air outlet pipe (17) is connected with the clamping air bag (4), the other end of the air outlet pipe (17) is communicated with the movable cavity (8), one end of the spring (9) is connected with the piston (18) away from the air outlet pipe (17), and the other end of the spring (9) is connected with the cavity bottom of the movable cavity (8), the valve seat (3) is provided with a vertical pressure relief hole (7), the pressure relief hole (7) is communicated with the movable cavity (8), when the air pressure in the clamping air bag (4) is too high, the gas in the clamping air bag (4) extrudes the piston (18) to make the piston (18) move in the movable cavity (8), and then the gas flows out from the pressure relief hole (7); the valve seat (3) is further provided with an air pipe (13), the clamping air bag (4) is provided with an air inlet pipe (16), one end of the air inlet pipe (16) away from the clamping air bag (4) is communicated with the air pipe (13), and the air pipe (13) is provided with a control valve (14); the pressure relief mechanism further comprises a transmission assembly, the piston (18) drives the transmission assembly to operate when moving, and the transmission assembly drives the control valve (14) to control the on-off of the air inlet pipe (16); the transmission assembly comprises a transmission rack (20) and a transmission gear (11), the valve seat (3) is provided with a mounting cavity (10), the mounting cavity (10) is communicated with the movable cavity (8), the transmission rack (20) is horizontally arranged at one end of the piston (18), and the transmission gear (11) is rotatably arranged in the mounting cavity (10); the transmission gear (11) is in transmission connection with a control rod of the control valve (14); a synchronous wheel one (12) is coaxially arranged on the transmission gear (11), a synchronous wheel two (15) is coaxially arranged on the control rod of the control valve (14), and the synchronous wheel one (12) and the synchronous wheel two (15) are connected through a synchronous belt (24).

2. The mobile phone screen fixing tool of claim 1, wherein: An annular mounting groove is arranged on the circumferential surface of the piston (18), and an annular sealing ring (19) is mounted in the annular mounting groove.

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