A sealed waterproof mobile phone case

Abstract

The application relates to the technical field of mobile phone accessories, and particularly relates to a sealed waterproof mobile phone shell, which comprises a front shell, a rear shell, an elastic sheet, a pressing rod and an adjusting mechanism, the front shell is provided with a front transparent soft film, and the rear shell is provided with a rear soft film; the rear shell is sealed and connected with the front shell during use, the rear shell, the rear soft film, the front shell and the front transparent soft film jointly form a cavity for placing a mobile phone; the elastic sheet is located in the cavity and arranged on the rear shell; the elastic sheet is protruded backward and forms a stop cooperation with the rear soft film; the pressing rod is located outside the cavity, the first end of the pressing rod is hinged to the front shell, the second end of the pressing rod can be connected to the front shell, and the second end of the pressing rod can form a stop cooperation with the protruded part of the elastic sheet through the rear soft film; the adjusting mechanism is used for adjusting the protruding degree of the protruded part of the elastic sheet; thus, the air pressure in the cavity can be adjusted, the bulging degree of the front transparent soft film can be adjusted, and the hand feeling of different users and various environments can be adapted.

Description

Technical Field

[0001] This invention relates to the field of mobile phone accessories technology, and in particular to a sealed and waterproof mobile phone casing. Background Technology

[0002] To effectively prevent damage caused by collisions, drops, or water ingress during mobile phone use, a protective case is usually used on the outside of the phone to protect it.

[0003] In related technologies, such as the self-testing sealing device for waterproof mobile phone cases disclosed in Chinese Patent CN117061654B, the working mechanism is as follows: During use, the pressure plate is pressed down, causing the soft rubber folding cavity to retract into the fixed frame. Then, the buckles on the fixed frame are engaged with the first slot on the pressure frame. During the folding process of the soft rubber folding cavity, the air inside is squeezed to the front transparent soft film inside the phone case, causing the front transparent soft film to bulge. If the bulging front transparent soft film can prevent the air inside the cavity from dissipating within a certain time, it indicates that the cavity is sealed, thereby allowing visual inspection of the waterproof effectiveness of the mobile phone case.

[0004] However, the aforementioned self-testing sealing device for waterproof phone cases has several problems in practical applications: First, when the front transparent film bulges, users need to press it down to operate the phone. However, due to differences in user feel, and the fixed degree of bulging of the front transparent film, users with softer hands find it difficult to press, resulting in a poor user experience; users with harder hands may apply too much pressure, easily damaging the front transparent film. Second, in special environments, such as underwater, water pressure can reduce the degree of bulging of the front transparent film, potentially causing screen flickering. If the front transparent film is designed with a large initial bulge for underwater use, pressing it on the surface will be very difficult, and the film is also prone to breakage due to excessive deformation, leading to sealing failure. Summary of the Invention

[0005] Therefore, it is necessary to provide a sealed and waterproof phone case to address the problem of poor adaptability of current phone cases during use.

[0006] The above objectives are achieved through the following technical solutions:

[0007] A sealed and waterproof mobile phone case, the sealed and waterproof mobile phone case comprising:

[0008] A front housing, wherein a front transparent soft film is provided on the front housing;

[0009] The rear housing has a rear soft film on it; when in use, the rear housing is sealed and snapped into the front housing, and the rear housing, the rear soft film, the front housing and the front transparent soft film together surround and form a cavity, which is configured to hold a mobile phone;

[0010] A spring sheet is located inside the cavity and is disposed on the rear housing; the spring sheet protrudes rearward and forms a stop engagement with the rear soft membrane;

[0011] The pressure rod is located outside the cavity, with its first end hinged to the front housing and its second end able to be snapped onto the front housing. It can also form a stop engagement through the protruding portion of the rear soft membrane and the spring sheet.

[0012] An adjustment mechanism is configured to adjust the degree of protrusion of the raised portion of the spring.

[0013] Furthermore, the adjustment mechanism includes a locking hole and a slider. The spring sheet is provided with a plurality of locking holes, which are arranged at intervals along the extension direction of the spring sheet. The slider is disposed on the rear housing and connected to the rear housing through an elastic element, and can form a locking engagement with the locking holes. Under the action of the elastic element, the slider can slide along the extension direction of the spring sheet and has a tendency to compress the spring sheet.

[0014] Furthermore, the elastic element is a compression spring.

[0015] Furthermore, the compression spring has an S-shaped structure.

[0016] Furthermore, the pressure rod is provided with a first slot; the front housing is provided with a snap-fit ​​part, which can snap into the first slot.

[0017] Furthermore, the latching part is rotatable around its own axis and has corresponding locked and unlocked states before and after rotation. When in the locked state, the latching part is engaged with the first slot, and when in the unlocked state, the latching part is disengaged from the first slot.

[0018] Furthermore, the rear housing is provided with a slot, which is close to the hinge point between the pressure rod and the front housing; the pressure rod is provided with a spring protrusion, which can be inserted into the slot and can form a stop engagement with the slot.

[0019] Furthermore, a charging port is provided at the bottom of the front housing, and a plug is provided to seal the charging port.

[0020] Furthermore, the plug and the rear housing are elastically hinged, and under elastic action, they tend to block the charging port.

[0021] Furthermore, the first end of the pressure rod is frictionally hinged to the front housing.

[0022] The beneficial effects of this invention are:

[0023] This invention relates to a sealed and waterproof mobile phone casing. By setting a spring and a pressure rod, and setting an adjustment mechanism that cooperates with them, the outward protrusion of the raised part of the spring can be adjusted. After the pressure rod and the front casing form a snap fit, the air pressure inside the cavity can be adjusted, thereby adjusting the degree of bulging of the front transparent soft film. This allows it to adapt to the feel of different users and various environments, improving its applicability.

[0024] Furthermore, by setting a slot and a spring, and utilizing the special spatial position of the slot near the hinge point between the pressure rod and the front housing, when it is necessary to open the cavity, the front housing and the rear housing can be automatically separated by rotating the pressure rod and pushing the slot with the spring, thus improving the ease of operation. Attached Figure Description

[0025] Figure 1 A three-dimensional structural diagram of a sealed and waterproof mobile phone casing provided in an embodiment of the present invention. Figure 1 ;

[0026] Figure 2 A three-dimensional structural diagram of a sealed and waterproof mobile phone casing provided in an embodiment of the present invention. Figure 2 ;

[0027] Figure 3 An exploded view of the components of a sealed and waterproof mobile phone casing provided in an embodiment of the present invention;

[0028] Figure 4 A three-dimensional structural diagram of a sealed and waterproof mobile phone casing provided in an embodiment of the present invention. Figure 3 ;

[0029] Figure 5 A schematic cross-sectional view of a sealed and waterproof mobile phone casing provided in an embodiment of the present invention. Figure 1 ;

[0030] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point W in the middle;

[0031] Figure 7 A schematic cross-sectional view of a sealed and waterproof mobile phone casing provided in an embodiment of the present invention. Figure 2 ;

[0032] Figure 8 for Figure 7 A magnified schematic diagram of the structure at point X in the middle;

[0033] Figure 9 for Figure 7 A magnified schematic diagram of the structure at point Y in the middle;

[0034] Figure 10 for Figure 7 A magnified schematic diagram of the structure at point Z in the middle.

[0035] in:

[0036] 1. Front housing; 101. Front transparent soft film; 102. Charging port; 103. First opening; 104. Second card slot;

[0037] 2. Rear housing; 201. Rear soft diaphragm; 202. Slot; 203. Second opening; 204. Elastic latch protrusion; 205. Slide rail; 2051. Slide path;

[0038] 3. Cavity;

[0039] 4. Shrapnel;

[0040] 5. Pressure rod; 501. First slot; 502. Spring protrusion;

[0041] 6. Adjustment mechanism; 601. Locking hole; 602. Slider; 6021. Insertion protrusion; 603. Compression spring;

[0042] 7. Connecting part;

[0043] 8. Plug; 801. Fixed protrusion. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0045] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage," unless otherwise specified, include both direct and indirect connections (linkages). In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] The following reference Figures 1 to 10 The present invention describes a sealed and waterproof mobile phone casing provided in the embodiments of the invention. It is particularly suitable for waterproof protection of mobile phones, and of course, it is also suitable for waterproof protection of other electronic mobile devices, such as tablets and tablet computers.

[0048] Specifically, the sealed and waterproof mobile phone casing includes a front casing 1 and a rear casing 2. The front casing 1 has a box-like structure with an open rear side wall. A first opening 103 is formed on the front side wall of the front casing 1, and a front transparent soft film 101 is fixedly sealed at the first opening 103. The first opening 103 covers at least the screen display area of ​​the mobile phone, allowing the front transparent soft film 101 to fully display the screen and avoid affecting the normal use of the mobile phone. The rear casing 2 also has a box-like structure with an open front side wall. A second slot 104 is formed on the outer peripheral wall of the front casing 1, and an elastic protrusion 204 is formed on the inner peripheral wall of the rear casing 2. The elastic protrusion 204 can engage with the second slot 104, thereby achieving a sealed engagement between the rear casing 2 and the front casing 1. Optionally, both the elastic protrusion 204 and the second slot 104 can be set as annular structures. The rear shell 2, the front shell 1, and the front transparent soft film 101 together surround and form a cavity 3, which is configured to hold a mobile phone.

[0049] Existing waterproof phone cases typically have a second opening 203 on the rear side wall of the back shell 2. A folding part is fixedly installed at the second opening 203. The folding part has a cavity, which is connected to the molded cavity 3. When the phone is placed into the molded cavity 3, the folding part is compressed, the overall volume of the cavity and the molded cavity 3 decreases, and the pressure increases, causing the front transparent soft film 101 to bulge. This achieves both waterproof protection and allows for visual inspection of the phone case's waterproof effectiveness. However, the fixed bulge degree of the front transparent soft film 101 cannot adapt to the operating feel of different users, resulting in a polarized operating experience. This not only affects the ease of use but also increases the risk of component damage. At the same time, facing the pressure difference between above-water and underwater environments, the fixed bulge degree of the front transparent soft film 101 cannot meet the usage needs of both scenarios. Changes in the bulge degree of the front transparent soft film 101 under water pressure can cause functional malfunctions, while forcibly increasing the initial bulge degree of the front transparent soft film 101 will bring new operating difficulties and potential component damage risks, seriously restricting the reliability and applicability of waterproof phone cases in complex environments.

[0050] Based on this, in the sealed and waterproof mobile phone casing provided in this embodiment of the invention, a rear soft membrane 201 is fixedly sealed at the second opening 203. The cavity 3 is formed by the rear shell 2, the rear soft membrane 201, the front shell 1, and the front transparent soft membrane 101. A spring piece 4 is provided in the cavity 3. The spring piece 4 extends vertically and corresponds to the second opening 203. The top end of the spring piece 4 is fixed to the rear inner side wall of the rear shell 2 and is located above the second opening 203. The bottom end is suspended and located below the second opening 203. The spring piece 4 protrudes backward, and the protruding part pushes against the rear soft membrane 201. On the soft membrane 201, a stop is formed with the rear soft membrane 201; a pressure rod 5 is provided outside the cavity 3, the top end of the pressure rod 5 is hinged to the top of the front housing 1, and then the whole can be sleeved on the top part of the front housing 1, the rear housing 2 and the bottom of the front housing 1; in order to realize the snap-fit ​​between the pressure rod 5 and the front housing 1, a third snap-fit ​​groove can be provided on the front side wall of the bottom of the front housing 1, and a snap-fit ​​protrusion is provided on the rear side wall of the bottom end of the pressure rod 5. The snap-fit ​​protrusion is made of elastic material, such as rubber, and can be snapped into the third snap-fit ​​groove, thereby enhancing the connection stability between the rear housing 2 and the front housing 1.

[0051] The sealed and waterproof phone casing also includes an adjustment mechanism 6, which is configured to adjust the degree of protrusion of the raised portion of the spring 4. Thus, before placing the phone into the cavity 3, the degree of protrusion of the raised portion of the spring 4 can be pre-adjusted according to the user's hand feel or whether the phone is used on or underwater, thereby meeting different usage needs and improving applicability. Specifically, when the user's hand feel is light or the phone is used on water, the degree of protrusion of the raised portion of the spring 4 is adjusted to be smaller by the adjustment mechanism 6. At this time, the raised portion of the spring 4 exerts less external support on the rear soft membrane 201, and the volume of the cavity 3 is relatively small. Then, the phone is placed into the cavity 3, and the pressure rod 5 is rotated towards the rear housing 2 until the locking protrusion and the third locking slot engage. During the rotation of the pressure rod 5, due to the small outward protrusion of the protruding part of the spring 4, the pressure rod 5 will lag behind and abut against the protruding part of the spring 4 through the rear soft membrane 201. After the pressure rod 5 abuts against the protruding part of the spring 4 through the rear soft membrane 201, as the pressure rod 5 continues to move, the pressure rod 5 drives the protruding part of the spring 4 to move backward through the rear soft membrane 201. Since the final rotation position of the pressure rod 5 remains unchanged, the volume of the cavity 3 will decrease, but the decrease is small, and the pressure will increase accordingly, but the increase is small. This can adapt to situations where the user's hand feels light or the phone is used on water, and cause the front transparent soft membrane 101 to bulge, which can achieve waterproof protection and also allow for visual inspection of the waterproof effectiveness of the phone case.

[0052] Similarly, when the user feels the phone is heavy or when the phone is used underwater, the protrusion of the adjustment spring 4 is greater. At this time, the protrusion of the spring 4 will support the rear soft membrane 201 to a greater extent, and the volume of the cavity 3 will be relatively large. Then, the phone is placed into the cavity 3, and the pressure rod 5 is rotated towards the rear shell 2 until the protrusion and the third slot are engaged. During the rotation of the pressure rod 5, due to the large outward protrusion of the protruding part of the spring 4, the pressure rod 5 will abut against the protruding part of the spring 4 through the rear soft membrane 201 in advance. After the pressure rod 5 abuts against the protruding part of the spring 4 through the rear soft membrane 201, as the pressure rod 5 continues to move, the pressure rod 5 drives the protruding part of the spring 4 to move backward through the rear soft membrane 201. Since the final rotation position of the pressure rod 5 remains unchanged, the volume of the cavity 3 will decrease and the decrease will be large, and the pressure will increase accordingly and the increase will be large. This can adapt to the user's heavy hand or the situation of using the phone underwater, and make the front transparent soft membrane 101 bulge, which can not only achieve waterproof protection, but also allow visual inspection of the waterproof effectiveness of the phone case.

[0053] Simultaneously, after the pressure rod 5 abuts against the rear soft membrane 201 and the protruding part of the spring 4, the spring 4 applies a rearward force to the pressure rod 5. Since the pressure rod 5 is hinged to the front housing 1, the pressure rod 5 can transmit the force of the spring 4 to the front housing 1, causing it to tend to move backward. Correspondingly, the pressure rod 5 applies a forward force to the spring 4. Since the spring 4 is fixedly connected to the rear housing 2, the spring 4 can transmit the force of the pressure rod 5 to the rear housing 2, causing it to tend to move forward. This results in a tighter connection between the front housing 1 and the rear housing 2, thus enhancing the connection stability and sealing between them and ensuring waterproofing. Furthermore, the greater the outward protrusion of the protruding part of the spring 4, the greater the interaction force between the spring 4 and the pressure rod 5 after the pressure rod 5 abuts against the rear soft membrane 201 and the protruding part of the spring 4. This further enhances the connection stability and sealing between the front housing 1 and the rear housing 2, further ensuring waterproofing.

[0054] Furthermore, the adjustment mechanism 6 is configured to include a locking hole 601 and a slider 602. Multiple locking holes 601 are provided on the front sidewall of the bottom end of the spring piece 4, and these holes are arranged at equal intervals along the extending direction of the spring piece 4. A slide rail 205 is fixedly installed on the inner rear sidewall of the rear housing 2. The slide rail 205 is located below the second opening 203 and has a U-shaped structure with the opening facing upwards. A slide channel 2051 is formed between the slide rail 205 and the rear housing 2. The slider 602 is slidably inserted into the slide channel 2051 during installation and can slide vertically. When the slider 602 slides upwards, it can interact with the rear... The housing 2 forms a stop fit to have an upper limit sliding position; a protrusion 6021 is fixedly provided on the front side wall of the slider 602. The protrusion 6021 can be inserted into the locking hole 601 and can form a locking fit with the locking hole 601. The slider 602 is connected to the rear housing 2 through an elastic element. The elastic element can be set as a compression spring 603. The compression spring 603 is set vertically, and its top end is fixed to the bottom of the slider 602, and its bottom end is fixed to the slide rail 205. Under the action of the compression spring 603, the slider 602 has an upward tendency, thereby compressing the spring 4 to increase the outward convexity of the protruding part of the spring 4.

[0055] During use, when the user's hand is light or the phone is used on water, the adjustment protrusion 6021 is inserted into the upper slot 601. Since the slider 602 has an upper limit sliding position, the distance between the protrusion 6021 and the upper limit sliding position is relatively close. The compression spring 603 drives the slider 602 to slide a shorter distance, making the final distance between the two ends of the spring 4 larger. This results in a smaller outward bulge of the protruding part of the spring 4, thus ensuring that the final bulge of the front transparent soft film 101 is smaller, which is suitable for situations where the user's hand is light or the phone is used on water. Similarly, when the user feels the phone is heavy or when the phone is used underwater, the adjustment protrusion 6021 is inserted into the lower slot 601. Since the slider 602 has an upper limit sliding position, the distance between the protrusion 6021 and the upper limit sliding position is relatively large. The compression spring 603 can drive the slider 602 to slide a longer distance, making the final distance between the two ends of the spring 4 closer. This results in a greater outward convexity of the protruding part of the spring 4, thus ensuring that the final bulge of the front transparent soft film 101 is larger, which is suitable for situations where the user feels the phone is heavy or when the phone is used underwater.

[0056] Similarly, when the user's hand feels lighter, the adjustment protrusion 6021 is inserted into the uppermost slot 601. Since the slider 602 has an upper limit sliding position, the closer the protrusion 6021 is to this upper limit sliding position, the shorter the distance that the spring 603 can drive the slider 602 to slide. This makes the final distance between the two ends of the spring 4 farther, and thus makes the protrusion of the spring 4 less, thereby ensuring that the final bulge of the front transparent soft film 101 is smaller, which is suitable for the user's lighter hand feel. Similarly, when the user's hand feels heavier or when using the phone at deeper underwater, the adjustment protrusion 6021 is inserted into the lowermost slot 601. Since the slider 602 has an upper limit sliding position, the greater the distance between the protrusion 6021 and the upper limit sliding position, the longer the distance that the spring 603 can drive the slider 602 to slide. This makes the final distance between the two ends of the spring 4 closer, and thus makes the protrusion of the spring 4 more convex. This ensures that the final bulge of the front transparent soft film 101 is greater, which is suitable for situations where the user's hand feels heavier or the phone is used at deeper underwater.

[0057] In a further embodiment, the compression spring 603 has an S-shaped structure. From a structural perspective, the S-shaped structure, through its continuous bending design, can achieve a longer extension stroke within a limited space: compared to a straight compression spring 603, under the same compression requirement, the S-shaped compression spring 603 occupies a shorter axial length, which can fit the compact installation space inside the rear housing 2, reduce the encroachment on the volume of the cavity 3, and avoid limiting the space for placing the mobile phone due to the installation of the compression spring 603.

[0058] Meanwhile, the S-shaped structure disperses stress distribution, allowing for the use of finer wires while maintaining the same elastic coefficient, thus significantly reducing the weight of the compression spring 603 itself. This characteristic not only helps reduce the overall weight of the sealed waterproof phone casing and improves portability, but also reduces the impact on the adjustment accuracy of the spring 4—when the lightweight compression spring 603 works with the slider 602, its own inertia has less interference with the dynamic response of the adjustment mechanism 6, making the adjustment of the protrusion of the spring 4 more precise and stable, thereby ensuring the control accuracy of the bulge of the front transparent soft film 101, and better adapting to different user feel and complex usage scenarios such as underwater and above-water.

[0059] In other embodiments, the elastic element can also be a rubber matrix, which can be made of a highly elastic and aging-resistant rubber material, and is connected between the slider 602 and the slide rail 205 to form a stable elastic support structure.

[0060] When it is necessary to adjust the protrusion of the spring piece 4, the rubber matrix can provide a continuous force through its own elastic deformation: in its natural state, the rubber matrix is ​​in a compressed state, applying an upward thrust to the slider 602, causing the insertion protrusion 6021 and the locking hole 601 to engage tightly, thereby maintaining the current protrusion of the spring piece 4; when the user manually adjusts the position of the slider 602, the rubber matrix undergoes corresponding compression deformation as the slider 602 slides, storing elastic potential energy. After the external force is removed, the rubber matrix releases the elastic potential energy to push the slider 602 upward to the upper limit sliding position, ensuring that the insertion protrusion 6021 and the target locking hole 601 are stably engaged, and maintaining the current protrusion of the spring piece 4.

[0061] Compared to the compression spring 603, the rubber substrate has unique advantages: First, the rubber material itself has certain damping characteristics, which can effectively buffer vibration and impact during the sliding of the slider 602 and the force adjustment of the spring 4, avoiding component wear caused by rigid collisions and extending the service life of the adjustment mechanism 6; Second, the rubber substrate can be customized according to the shape of the installation space (such as being made into a columnar, block, or irregular structure), which is more suitable for the complex spatial layout inside the rear shell 2 and reduces the volume occupied by the cavity 3; Third, the rubber material has good waterproof sealing properties, which can prevent water vapor from seeping into the cavity 3 through the connection gap between the elastic element and other components, and work together with the rear soft membrane 201, the front transparent soft membrane 101 and other structures to improve the overall waterproof performance.

[0062] In other embodiments, to achieve the snap-fit ​​connection between the pressure rod 5 and the front housing 1, a first snap-fit ​​groove 501 can be provided on the front side wall of the bottom end of the pressure rod 5, and a snap-fit ​​part 7 can be provided on the bottom front side wall of the front housing 1. The snap-fit ​​part 7 is made of an elastic material, such as rubber, and has an L-shaped structure with a horizontal section and a vertical section connected vertically. The rear end of the horizontal section is vertically inserted into the front housing 1, and the vertical section is vertically downward and can snap-fit ​​with the first snap-fit ​​groove 501, thereby enhancing the connection stability between the rear housing 2 and the front housing 1.

[0063] In other embodiments, the latching part 7 is a rigid structure and can rotate around the axis of its horizontal section. It has a corresponding locked state and an unlocked state before and after rotation. When it is in the locked state, the vertical section of the latching part 7 is engaged with the first slot 501, thereby enhancing the connection stability between the rear housing 2 and the front housing 1. When it is in the unlocked state, the latching part 7 and the first slot 501 are disengaged, allowing the pressure rod 5 to rotate freely, which facilitates disassembly.

[0064] In other embodiments, to improve ease of disassembly, a slot 202 is provided on the top of the rear housing 2, ensuring that the slot 202 is close to the hinge point between the pressure rod 5 and the front housing 1; a spring protrusion 502 is fixedly provided at the bottom of the top of the pressure rod 5, and the spring protrusion 502 is inserted into the slot 202 when the pressure rod 5 rotates to fit on the front housing 1 and the rear housing 2.

[0065] When it is necessary to open the cavity 3, the pressure rod 5 is driven to rotate away from the rear housing 2. During the rotation of the pressure rod 5, the pressure rod 5 drives the spring protrusion 502 to move synchronously. When the spring protrusion 502 and the slot 202 come into contact, as the pressure rod 5 continues to rotate, the spring protrusion 502 pushes the rear housing 2 to move backward, thereby enabling the front housing 1 and the rear housing 2 to automatically separate, improving the ease of operation.

[0066] In other embodiments, to enable charging of the mobile phone, a charging port 102 is provided at the bottom of the front housing 1. The charging port 102 is connected to the cavity 3, and a plug 8 is provided to seal the charging port 102. The plug 8 is provided to prevent water from entering the cavity 3 through the charging port 102, which would cause the waterproofing to fail. When it is necessary to charge the mobile phone, the plug 8 can be removed, and then the charging cable can be passed through the charging port 102 and connected to the mobile phone to enable charging of the mobile phone.

[0067] In other embodiments, to prevent the plug 8 from being lost, the rear end of the plug 8 is elastically hinged to the bottom of the rear housing 2 via a torsion spring. Under the action of the torsion spring, the plug 8 tends to rotate towards the charging port 102, thereby achieving continuous sealing of the charging port 102 and ensuring sealing performance. When it is necessary to charge the mobile phone, the plug 8 can be rotated away from the charging port 102, and then the charging cable can be passed through the charging port 102 and connected to the mobile phone to charge the mobile phone. At this time, since the plug 8 is hinged to the rear housing 2, it is prevented from being lost.

[0068] In a further embodiment, to improve the sealing effect at the charging port 102, the front end of the plug 8 can be bent upwards, and an elastic fixing protrusion 801 can be fixedly provided on the rear side wall of the bend. A fixing groove is provided on the bottom front side wall of the front housing 1. The fixing protrusion 801 can be engaged in the fixing groove during installation, thereby connecting the plug 8 and the front housing 1, which helps to improve the sealing effect of the plug 8 at the charging port 102.

[0069] In other embodiments, to improve the sealing effect at the charging port 102, an elastic protrusion can be provided on the top of the plug 8. The elastic protrusion can be inserted into the charging port 102 through interference, thereby reducing the gap between the charging port 102 and the plug 8 through the elastic deformation of the elastic protrusion, which helps to improve the sealing effect of the plug 8 at the charging port 102.

[0070] In other embodiments, to expand the function of the pressure rod 5 and make it also serve as a mobile phone holder, the hinge structure between the top of the pressure rod 5 and the front housing 1 is set as a friction hinge.

[0071] Specifically, the hinge end of the pressure rod 5 and the front housing 1 can be fitted with an interference fit, thereby creating a damping effect through static friction between the contact surfaces. When an external force is applied to rotate the pressure rod 5, the friction can resist the weight of the pressure rod 5 itself and the phone's outer casing, allowing the pressure rod 5 to maintain a stable static state after rotating to any angle. Position locking can be achieved without additional locking components, thus providing support for the phone placed in the cavity 3 at any angle. This friction hinge design works synergistically with the original function of the pressure rod 5: when the pressure rod 5 is engaged with the front housing 1, its rigid fit with the front housing 1 and the rear housing 2 can offset some of the external force, and the friction damping mainly plays an auxiliary stabilizing role; when the pressure rod 5 is used as a phone holder, after releasing the engagement with the front housing 1, the friction damping becomes the core force maintaining its support angle, ensuring that the phone will not shift its angle due to its own weight when placed at an angle (such as during movie watching or video calls).

[0072] Compared to a stand structure, the advantages of using the pressure bar 5 as a phone stand are: First, it eliminates the need for additional parts, utilizing the structure of the pressure bar 5 itself to expand functionality, simplifying the overall structure of the phone casing and reducing weight; Second, the damping force of the friction hinge can be precisely controlled by adjusting the roughness and interference of the hinge surface, ensuring both stability during support (avoiding angle changes caused by slight touches) and smooth operation when adjusting the angle (rotation can be performed without excessive external force); Third, the length and shape of the pressure bar 5 are adapted to the phone casing, providing a more contour-fitting support when used as a stand, reducing space occupation in folded or unfolded states and improving portability.

[0073] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A sealed and waterproof mobile phone casing, characterized in that, The sealed and waterproof mobile phone casing includes: A front housing, wherein a front transparent soft film is provided on the front housing; The rear housing has a rear soft film on it; when in use, the rear housing is sealed and snapped into the front housing, and the rear housing, the rear soft film, the front housing and the front transparent soft film together surround and form a cavity, which is configured to hold a mobile phone; A spring sheet is located inside the cavity and is disposed on the rear housing; the spring sheet protrudes rearward and forms a stop engagement with the rear soft membrane; The pressure rod is located outside the cavity, with its first end hinged to the front housing and its second end able to be snapped onto the front housing. It can also form a stop engagement through the protruding portion of the rear soft membrane and the spring sheet. An adjustment mechanism is configured to adjust the degree of protrusion of the protruding portion of the spring sheet; The adjustment mechanism includes a locking hole and a slider. The spring sheet is provided with a plurality of locking holes, which are arranged at intervals along the extension direction of the spring sheet. The slider is disposed on the rear housing and is connected to the rear housing through an elastic element, and can form a locking engagement with the locking holes. Under the action of the elastic element, the slider can slide along the extension direction of the spring sheet and has a tendency to compress the spring sheet. The rear housing is provided with a slot, which is close to the hinge point between the pressure rod and the front housing; the pressure rod is provided with a spring protrusion that can be inserted into the slot and can form a stop engagement with the slot.

2. The sealed and waterproof mobile phone casing according to claim 1, characterized in that, The elastic element is a compression spring.

3. The sealed and waterproof mobile phone casing according to claim 2, characterized in that, The compression spring has an S-shaped structure.

4. The sealed and waterproof mobile phone casing according to claim 1, characterized in that, The pressure rod is provided with a first slot; the front housing is provided with a snap-fit ​​part, which can snap into the first slot.

5. The sealed and waterproof mobile phone casing according to claim 4, characterized in that, The latching part can rotate around its own axis and has corresponding locked and unlocked states before and after rotation. When it is in the locked state, the latching part is engaged with the first slot. When it is in the unlocked state, the latching part is disengaged from the first slot.

6. The sealed and waterproof mobile phone casing according to claim 1, characterized in that, A charging port is provided at the bottom of the front housing, and a plug is provided to seal the charging port.

7. The sealed and waterproof mobile phone casing according to claim 6, characterized in that, The plug and the rear housing are elastically hinged, and under elastic action, they tend to block the charging port.

8. The sealed and waterproof mobile phone casing according to claim 1, characterized in that, The first end of the pressure rod is frictionally hinged to the front housing.

Images