138 results about "Surface cover" patented technology

The utility model relates to a kind of mobile phone support, specifically a self-locking type oblique roof vacuum mobile phone support, the mobile phone support includes suction disc main body, suction disc main body includes bottom disc and cover is set on the surface cover of bottom disc, unlocking block, locking block and oblique roof block are set between bottom disc and surface cover, wherein surface cover is contact connection with unlocking block, and surface cover includes main cover plate, limit strip is fixed in the lower end surface of main cover plate, unlocking block includes center body and arrowhead body fixed on center body, limit slot is formed in the upper end surface of center body, limit strip is slidably arranged in limit slot, and can linearly move in limit slot, upper positioning block and lower positioning block are fixed on the end of arrowhead body away from center body, upper positioning block is located in the position above lower positioning block, and spring limiting slot is formed between upper positioning block and lower positioning block. The self-locking type oblique roof vacuum mobile phone support, the operation of adsorption and un-adsorption is very simple and convenient, and use experience is improved.

The invention relates to the technical field of dressing cases, in particular to a powder box with a replaceable powder tray, which comprises a bottom box, an inner case, a surface cover and the powder tray, the inner case is provided with an exposing hole, a mounting cavity with a front opening and an avoiding hole, the side wall of the avoiding hole is provided with an elastic swing rod, the top surface of the elastic swing rod is convexly provided with a clamping bulge, and the rear side of the mounting cavity is provided with an elastic piece; an in-out guide groove and a path hole are concavely formed in the bottom face of the powder disc, a path guide block is arranged on the bottom face of the powder disc, a loading groove and a disassembling groove are formed between the peripheral wall of the path guide block and the inner side wall of the path hole, and one end of the loading groove is communicated with one end of the disassembling groove to form a clamping position. The other end of the loading groove is converged with the other end of the dismounting groove and is communicated with the inner end of the in-out guide groove; and when the clamping bulge is clamped with the clamping position, the elastic piece is in a pressed state. Stable assembly of the powder disc and the inner lattice can be achieved only by pushing the powder disc into the inner lattice, the powder disc can pop out of the inner lattice only by pressing the powder disc, operation is easy, and the powder disc is convenient to disassemble, assemble and replace.

1. The name of the design product: the surface cover of electric clipper (M3803). 2. The use of the design product: for electric clipper parts. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view 1.

The utility model discloses a novel fantasy colored lamp band controller, which comprises a controller shell and a control circuit board arranged in the controller shell, the controller shell is provided with an input connecting wire and a plurality of output connecting wires, and the controller shell comprises a bottom shell and a surface cover; a heat dissipation aluminum plate is integrally formed in the middle of the bottom shell, and the control circuit board is fixed to the heat dissipation aluminum plate. Grooves are formed in the top surface of the bottom shell and the bottom surface of the surface cover; a buckle protrusion is integrally formed on the outer side wall of the groove of the bottom shell, and a connecting protrusion is integrally formed on the inner side wall of the groove of the face cover. And clamping grooves are formed in the middle parts of the outer side walls of the grooves. According to the utility model, the structure arrangement is reasonable, the heat dissipation performance can be improved while the sealing performance is ensured, the buckle protrusions are arranged to be matched with the connecting protrusions, dual connection and waterproofing are realized at the joint of the bottom shell and the surface cover, the connection stability and the waterproof effectiveness are improved, and the sealing gasket and the sealing rubber layer are also arranged, so that the sealing performance is improved. The prevention effectiveness and reliability can be further improved, and the applicability is high.

The utility model discloses a touch screen assembly which comprises an outer frame, a touch screen is fixedly installed in the outer frame, a pressing frame covers the surface of the outer frame, meanwhile, the touch screen is fixedly connected in the outer frame through the pressing frame, a flat cable is arranged at the end of the touch screen, a penetrating hole is formed in the end of the outer frame, and a threaded connection hole is formed in the bottom of the pressing frame. Meanwhile, the screw joint holes are matched with fixing bolts in size, and the fixing bolts penetrate through penetrating holes formed in the outer frame and are fixed in the screw joint holes formed in the bottom of the pressing frame in a screw joint mode. According to the touch screen assembly, when the touch screen is detached and maintained, the fixing bolts are detached, the ends of the fixing bolts are separated from the interiors of the threaded connection holes, so that the pressing frame is detached from the surface of the outer frame, and the touch screen can be rapidly detached and fixed; and a traditional mode of fixing by using a buckle or dispensing is replaced, so that the outer frame cannot be scratched and damaged in the disassembly and assembly process.

The utility model provides a casing structure of a probing type temperature controller, which comprises a bottom casing and a surface cover, one side of the bottom casing is provided with a hole position for a temperature sensing rod to pass through, the side wall of the bottom casing is provided with an annular groove on the upper end face, an annular sealing rubber ring is arranged in the groove, the upper end face of the sealing rubber ring protrudes out of the groove, and the surface cover is arranged on the bottom casing. An annular protruding edge is arranged on the bottom face of the face cover, the protruding edge corresponds to the groove and can be embedded into the groove, and the face cover is arranged on the upper end face of the bottom shell in a covering mode and fixed through screws. The sealing rubber ring is arranged on the upper end face of the side wall of the bottom shell, and the sealing rubber ring is pressed when the surface cover is connected with the bottom shell, so that the sealing performance of the joint is improved, and the problem of poor sealing performance of the shell of the probing type temperature controller is solved.

According to the reset switch provided by the utility model, the structure of the reset switch is improved, so that at least one technical effect of simplifying the reset switch, reducing the size of the reset switch and ensuring the accurate reset of the reset switch is realized. The reset switch comprises a driving assembly, a shifting piece, a triggering piece and a surface cover, the shifting piece is hinged to the surface cover through a shifting shaft, and the shifting piece can move downwards along with the surface cover to abut against the triggering piece and drive the triggering piece to rotate; the driving assembly comprises two magnetic attraction pieces, one magnetic attraction piece is fixed to the surface cover, the other magnetic attraction piece is fixed to the shifting piece, and the opposite magnetic poles of the two magnetic attraction pieces in the first direction are opposite and arranged at intervals; the two magnetic attraction pieces can be aligned along a reference line under the action of magnetic force, and the reference line extends in the first direction and penetrates through the axis of the shifting shaft.

The utility model belongs to the technical field of low-voltage electric appliances, and discloses a surface cover and a circuit breaker. The surface cover comprises a surface cover body and a turning cover. Wherein the upper surface of the surface cover body is provided with a connecting part and a first clamping part; the turning cover is provided with a rotating part and a second clamping part, the rotating part is arranged at one end of the turning cover and movably connected to the connecting part, so that the turning cover can rotate and slide relative to the surface cover body, and the turning cover slides relative to the surface cover body in a closed state so that the second clamping part can be clamped with or separated from the first clamping part. When the second clamping part is connected with the first clamping part in a clamping mode, the turning cover can be kept in a closed state, and when the second clamping part is separated from the first clamping part, the turning cover can rotate to be in an open state. The turning cover of the surface cover can be quickly locked and unlocked with the surface cover body through sliding, the operation convenience is improved, parts do not need to be disassembled during unlocking, and the working reliability of the surface cover is improved.

The utility model relates to the technical field of knob switches, in particular to an assembly structure of a knob main body and a power supply assembly, which comprises a wall box, the power supply assembly is arranged in the wall box, and a knob main body assembly is arranged above the power supply assembly. According to the utility model, the knob main body assembly and the power supply assembly are connected by adopting a simple positioning self-guiding buckle installation structure, the four clamping hooks are arranged on the knob base, the side wing bone positions are arranged on the clamping hooks, the clamping hooks are matched with the clamping grooves on the surface cover bracket, the side wing bone positions play a guiding role when the clamping grooves are buckled, and the installation is convenient; meanwhile, the clamping hooks are matched and detachable, and replacement or maintenance and adjustment are convenient; a prying opening is formed in the edge of the clamping groove, so that disassembly is convenient; the power supply assembly is in strong current, the knob main body assembly is in weak current, and the two parts are in plug-in connection through a pin and a pin seat, so that safe, reliable, simple and convenient installation is ensured; and the crescent groove is arranged, so that the direction of the display screen can be conveniently adjusted in the mounting process, and the display content is ensured to be positive.

The utility model discloses an attaching jig which is used for attaching a flexible screen and a curved surface cover plate and comprises a first supporting area and a second supporting area distributed around the first supporting area. The attaching jig comprises a bearing film and a supporting piece. The bearing film comprises a first bearing part located in the first supporting area and a second bearing part located in the second supporting area, and the second bearing part comprises two first sub-bearing parts oppositely arranged in the first direction and two second sub-bearing parts oppositely arranged in the second direction. A first abdicating notch is formed between the adjacent first sub-bearing part and second sub-bearing part, and a third sub-bearing part is arranged in at least one first abdicating notch. The supporting piece comprises a first supporting part located in the first supporting area and a second supporting part located in the second supporting area. The gap between the screen body and the curved surface cover plate during fitting is reduced through the third sub-bearing part, the problem that bubbles are generated between the screen body and the curved surface cover plate is solved, and the fitting effect is improved.

The invention discloses a cleaning equipment driving surface covering identification method and device and cleaning equipment. The method comprises the steps that a line laser imaging picture collected by the cleaning equipment in the driving process is acquired; the line laser imaging picture is an image obtained by performing infrared imaging on a line laser projection area; the line laser projection area is an area where the cleaning equipment projects line laser; aiming at each line laser imaging picture, according to line laser infrared imaging information in the line laser imaging picture, carrying out covering object identification to obtain a covering object identification result of a line laser projection area corresponding to the line laser imaging picture; and determining the position of a covering on a driving surface on which the cleaning equipment runs according to the covering identification results corresponding to the plurality of line laser imaging pictures collected by the cleaning equipment. The computing power demand of covering identification can be reduced.

The utility model relates to the technical field of door and window hardware, and discloses a stainless steel bolt structure which comprises a surface cover and a bottom cover, the bottom cover is clamped on one side face of the surface cover, a lifting cover capable of swinging is arranged in the bottom cover, a tension hook piece is hinged in the lifting cover, a spring bolt is arranged between the surface cover and the bottom cover in a guiding mode, and the spring bolt is connected with the bottom cover in a sliding mode. The tension hook sheet is hooked at one end of the spring bolt; according to the stainless steel bolt structure, the lifting cover, the tension hook piece and the spring bolt are arranged between the surface cover and the bottom cover, the tension hook piece can be driven to pull the spring bolt to stretch out and draw back only by swinging the lifting cover, a tooth meshing structure in the prior art does not need to be adopted, the complexity of the structure is greatly reduced, and the product cost is reduced; moreover, the volume or thickness of the product is effectively reduced, the application adaptability of the product is improved, and the bottom cover is clamped on the surface cover, so that the positioning is further facilitated, and the assembly is facilitated.

The invention is a system used for instantly transferring physical technical drawings or notes to digital media using specially patterned paper and smart pen; to enable real-time transfer of physical technical drawings or handwritten notes taken using specially patterned paper and smart pen to digital media, automatic processing, semantic enrichment, and presentation to the user as functional content through artificial intelligence integration, specially patterned paper whose surface is covered with a special optical pattern to enable writing or drawing on it and detection by the smart pen, smart pen equipped with sensors or optical reader hardware that converts the position information of writings or drawings made on said paper into X-Y coordinate data and transmits this data via wireless communication protocol, electronic device that receives coordinate data from the smart pen and converts, stores, and processes it into digital format; multi-layered software architecture consisting of mobile or desktop application, data layer, business logic layer, common layer, presentation layer, and platform layer running on said electronic device, artificial intelligence processing layer in communication with the electronic device, processing coordinate data with large language models (LLM) and natural language processing (NLP) techniques; performing semantic search, summarization, translation, contextual expansion, task detection, and chat features, and characterized by including an interface module that presents processed data to the user through mobile or web-based user interface.

The invention provides a display device and a manufacturing method thereof. The display device comprises a frame body, an adhesion assisting layer, an adhesive layer and a surface cover plate. The frame body comprises a plurality of corner parts and a plurality of connecting parts, and the connecting parts are mutually connected through the corner parts. The adhesion-assisting layer is arranged on the frame body, and the adhesion-assisting layer is not arranged at the corner part. The adhesive layer is arranged on the frame body and the adhesion promoting layer. The surface cover plate is arranged on the frame body and is bonded with the frame body through the adhesive layer. Therefore, stress concentration can be reduced, and the reliability of the display device can be improved.

The utility model relates to the technical field of kitchen appliances, and provides a pot cover assembly and a cooking utensil. The pot cover assembly comprises an upper cover and a surface cover installed on the upper cover, a display panel is installed between the upper cover and the surface cover, the display panel is provided with a flat cable, a wire passing hole for the flat cable to penetrate through is formed in the upper cover, a supporting column protruding downwards is formed on the surface of the side, facing the upper cover, of the surface cover, and the supporting column penetrates through the wire passing hole. The flat cable is limited in a gap formed between the peripheral surface of the supporting column and the hole wall of the wire passing hole, and sealant is arranged in the gap. Therefore, a good sealing effect is achieved, a wire pressing plate and screws do not need to be machined and manufactured, cost is saved, the steps of installing the wire pressing plate and locking the screws are omitted in the assembling process, operation is easy, and assembling efficiency is high. In addition, when the surface cover and the upper cover are assembled, limiting and guiding effects can be achieved through cooperation of the supporting columns and the wire passing holes, so that rapid assembly of the surface cover and the upper cover is achieved, and the assembly efficiency is improved.

The utility model relates to the technical field of electronic equipment, in particular to novel portable sunshade protection equipment, and compared with the prior art, the protection device comprises a main body assembly, a rear cover assembly and a surface cover assembly; the rear cover assembly and the main body assembly are fixedly connected through a side lock catch, and the surface cover assembly and the main body assembly are positioned and connected through a damping 90-degree limiting hinge; a 360-degree rotating shaft with damping is arranged at the front end of the main body assembly, a side plate is arranged on the inner edge of the main body assembly, and a shockproof attaching block is arranged on the side plate; the surface cover assembly is divided into a left turning cover and a right turning cover, and the turning cover and the right turning cover can be turned left and right; the protective device has the advantages and functions of being high in strength, shock-proof, light-leakage-proof and the like due to the fact that the shock-proof attaching blocks are used for preventing shock, light-leakage-proof cloth and the sun shade are used for shading, and the protruding reinforcing ribs distributed vertically, the left aluminum profile part and the right aluminum profile part are used for improving the strength; and the monitor can be used and protected under field severe conditions.

The utility model discloses a sound box, which comprises a support frame, a loudspeaker, a mesh enclosure and a surface cover, and is characterized in that the loudspeaker is mounted on the support frame; the net cover comprises a cover body and a plurality of limiting blocks, the limiting blocks are vertically arranged on the edges of the cover body respectively, and the cover body and the limiting blocks jointly define a clamping cavity; the face cover is provided with a sound hole, the face cover comprises a panel and a protruding part arranged on the inner wall of the panel in a protruding mode, the cross section of the cover body and the cross section of the panel are both in a U shape, the sound hole sequentially penetrates through the protruding part and the panel, the panel is clamped in the clamping cavity, the protruding part is connected with the supporting frame and covers the loudspeaker, and the sound hole and the loudspeaker are correspondingly arranged. The mesh enclosure can be rapidly installed on the surface cover, traditional glue bonding is replaced, a large production placing space is not needed, the fixed mesh enclosure cannot move relative to the surface cover, the panel can provide sufficient internal support for the enclosure body, the mesh enclosure can be effectively prevented from falling and deforming in the falling process, and the service life of the mesh enclosure is prolonged. And the requirement of the market on the appearance ID of the loudspeaker box outdoor unit is met.

The utility model relates to a surface cover assembly and a cooking utensil. The surface cover assembly comprises a panel, a surface cover and a display panel, a mounting cavity is defined by the panel and the surface cover, and the display panel is located in the mounting cavity; a display module is arranged on the display panel; the panel includes: a surface film configured with a display area; the panel base body is arranged on the surface, facing one side of the surface cover, of the surface film, and a hollow notch part is constructed on the panel base body; the first split body is of a frame-shaped structure, and the outer side face of the first split body is embedded in the notch part; the display module is arranged on the inner side of the first split body in a penetrating mode and is opposite to the display area. According to the surface cover assembly and the cooking utensil, the display precision of the target graph on the surface film is high.

The invention relates to a heated surface covering (1) comprising several surface covering elements (2, 2'') assembled to form the surface covering (1), wherein the surface covering elements (2, 2'') are at least partially equipped with at least one electrical resistance element (3) and are thereby electrically heatable, and wherein the heated surface covering elements (2, 2'') are at least partially equipped with at least one electrical contact element (4) that enables electrical connection of the resistance element (3) with at least one resistance element (3) of an adjacent surface covering element (2, 2'') and thereby the formation of at least one electrical heating circuit (100, 100') formed by the surface covering (1). According to the invention, the electrical contact element (4) of a surface covering element (2, 2'') is inserted into a pocket-shaped recess (14) arranged below the usable surface (200) of this surface covering element (2, 2'').

The invention relates to a surface cover and a fastener thereof. The surface cover comprises a plurality of panels, a plurality of elongate profiles on which the panels are arranged, and a plurality of fastening elements, said profiles facing the underside of the panels such that intersection regions are created therebetween, at which the fastening elements are fitted. Wherein the fastening element has an elastic body connected to the head by a neck smaller in size than the head, the elasticity of the elastic body allowing it to pass through a slot corresponding to the cavity of the profile and also allowing it to slide within the cavity of the profile.

A method for producing a decorative surface covering comprises providing a structural core, including one or more core layers, the structural core carrying a décor layer representing a two-dimensional décor, and generating a three-dimensional surface relief by digitally embossing, in register with the two-dimensional décor, where the three-dimensional surface relief is generated at a distance of at least 0.1 mm from the décor layer by applying a transparent or at least translucent spacer layer against the décor layer, the spacer layer having a thickness that remains unmodified by the digital embossing and that corresponds to the distance, and where the three-dimensional surface relief is generated in one or more coating layers on a side of the spacer layer facing away from the décor layer after application of the spacer layer against the décor layer.

The utility model discloses a film-coated cover plate capable of changing colors, which relates to the field of display screens and comprises a substrate, the substrate is provided with a front surface and a back surface, the front surface of the substrate is provided with a film-coated layer, the back surface of the substrate is provided with a color-changing ink layer in a silk-screen printing manner, and the color-changing ink layer can change colors under different conditions. One surface, far away from the substrate, of the color-changing ink layer covers the substrate layer; according to the film-coated cover plate capable of changing colors, the film-coated layer is arranged on the front face of the base plate, the protection performance of the cover plate on hardness, abrasion resistance, chemical stability and thermal stability is improved, the color-changing ink layer is arranged on the back face of the base plate, the cover plate can change colors according to using conditions, the attractiveness of a product is improved, and the service life of the product is prolonged. The cover plate is simple in structure, the functionality is increased, the protection performance and the attractiveness of the cover plate are improved, the performance of the cover plate is comprehensively optimized, and the use requirements of high-end electronic products and special application scenes can be met.

The utility model discloses an HPB double-color surface cover button assembly, which relates to the technical field of industrial buttons, and comprises a switch button arranged on a control panel; the positioning ring is fixedly arranged on the surface of the control panel, and the positioning ring surrounds the periphery of the switch button; the open end of the cover body is detachably and fixedly connected to an opening in one end, far away from the control panel, of the positioning ring; wherein a through hole is formed in one side wall, directly facing the switch button, of the cover body; the limiting ring is arranged on the inner circumferential wall of the cover body, the limiting ring and the cover body form a movable cavity, and the switch button penetrates through the limiting ring; the transparent plate is movably arranged in the movable cavity, and the transparent plate is elastically connected with the limiting ring; the switch button is convenient to use, and the service life of the switch button is prolonged.

The utility model relates to a circuit board protection structure, in particular to an anti-collision circuit board, which comprises a copper laying layer, and the outer surface of the copper laying layer is covered with a paint layer. The transition mechanism is arranged on the periphery of the copper laying layer in the horizontal direction, and the transition mechanism and the copper laying layer are arranged adjacently; the reinforcing mechanism is arranged on the periphery, in the horizontal direction, of the transition mechanism, and the reinforcing mechanism is adjacent to the transition mechanism; concessions deviating from the transition mechanism are arranged at the corners of the copper laying layer, and the transition mechanism is filled with reinforcing parts matched with the concessions in size at the concessions of the copper laying layer; the reinforcing part has a sufficient size extending along the horizontal direction, so that the reinforcing part is used for buffering and preventing the corners of the copper laying layer from being directly exposed when the corners of the anti-collision circuit board are cut or collided. According to the utility model, the position of the transition mechanism outside the copper laying layer is provided with the reinforcing part for filling the corner yielding position of the copper laying layer, so that the reinforcing part plays a role in buffering the copper laying layer, and the copper laying layer is prevented from being directly damaged.

The utility model relates to a panel structure of a fireproof box, which comprises a surface cover shell, a rear cover plate and a middle split boss, the middle split boss is arranged at the middle part of the surface cover shell, a fingerprint module is arranged in the upper end of the middle split boss, a handle is rotatably arranged at the left end of the surface cover shell, and the rear cover plate is arranged at the right end of the surface cover shell. A password key module is installed in the right end of the face cover shell, an LED display panel is installed on the end face of the handle in an embedded mode, a rear cover plate is installed on the rear end face of the face cover shell, a rotating shaft extending backwards is installed at one end of the handle, and the rotating shaft penetrates through the rear cover plate. The utility model has the characteristics that the aesthetic degree of the panel is improved, the fingerprint module and the password key module are integrated, the space of the panel is reasonably utilized, and the decorative effect of the panel is improved.

The utility model relates to a reusable product label which comprises a label body, the label body comprises an upper pressing piece, a lower pressing piece and a bending part connecting the upper pressing piece and the lower pressing piece, and the bottom of the upper pressing piece covers the top of the lower pressing piece; the bending part is bent towards the directions of the upper pressing sheet and the lower pressing sheet, and the bending part has elasticity, so that the upper pressing sheet and the lower pressing sheet can clamp an object and are fixed on the object; the outer surface of the upper pressing piece is detachably connected with an information layer, and the surface of the information layer is covered with a wear-resistant layer. Through the design of the upper pressing piece, the lower pressing piece and the elastic bending part, the label can be clamped and fixed on an object and can be conveniently removed, so that the label can be repeatedly used, and the use cost is reduced. Moreover, the information layer which is detachably arranged on the outer surface of the upper pressing piece is made of silica gel, so that the waterproof function is achieved, the information layer of different product information can be replaced, the durability of the label is improved, and the purposes of recycling and reusing can be achieved.

The invention discloses a computer heat dissipation plate, and relates to the technical field of computer hardware, the computer heat dissipation plate comprises a side plate, one side of the side plate is provided with a fixing device, one end of the fixing device is connected with a heat dissipation device, the upper part of one side of the side plate is provided with an inflation device, and the center of the side plate is provided with a circular through hole. And a dustproof device is arranged in the circular through hole of the side plate. According to the computer heat dissipation plate, by arranging the side plate, the fixing device and the heat dissipation device, the heat dissipation device can be installed on the side plate through the fixing device, the side plate can be installed on the face of a computer case, the utilization rate of the internal space of the computer case is increased, the dustproof plate is installed on the side plate, the air circulation rate in the computer case is increased, and the heat dissipation effect is improved. And by arranging the inflation device, the air bag is inflated through the inflation inlet, so that the air bag can bulge in the case, the outer surface of the air bag covers the hardware in the case, and the case is prevented from being vibrated during movement to cause damage to the hardware.

This invention discloses an FPC backlight strip and its 3D printing embedded process. The FPC backlight strip includes a 3D printable substrate layer; embedded circuitry, located inside the substrate layer and forming three-dimensional traces; pads located at the ends of bare copper traces; a cover film layer, adhered to the surface of the substrate layer, with clearance holes corresponding to the pad positions; and LED beads and resistors, mounted on the pads using solder paste. The 3D printing embedded process includes S1, circuit design; S2, substrate preparation; S3, 3D embedded wire forming; S4, cover film lamination; S5, high-temperature pressing; and S6, die-cutting. Advantages: This invention uses a physical embedding method to replace the traditional chemical etching process, completely eliminating the processes of photosensitive film lamination, exposure, development, and etching. It requires no chemical reagents, completely eliminating the environmental pollution problem caused by etching waste liquid, and is a green and environmentally friendly manufacturing technology that can reduce environmental pollution and improve manufacturing precision.

A novel double-layer waterproof phone case structure, relating to the technical field of phone accessories, comprising a bottom cover (1) and a surface cover (101), and further comprising a sealing ring (2). A first slot (201) is provided at the top of the bottom cover (1), a first groove (202) is provided at the bottom of the surface cover (101), and the sealing ring (2) is fixed in the first groove (202); the bottom of the surface cover (101) is fitted in the first slot (201); and the bottom of the sealing ring (2) abuts against the bottom of the first slot (201), and is configured to be two layers of protrusions. A sealing ring is provided with two layers of protrusions, so that defective products in the production process can be effectively reduced for a production enterprise, thereby improving the yield; for a user, through the design of the two layers of protrusions, when the protrusions are fitted between a bottom cover and a surface cover, the deformation of the sealing ring when being pressed is larger, and the friction force between the sealing ring and the bottom of a first slot is also increased, thereby preventing the sealing ring from loosening after repeated mounting and dismounting, and thus avoiding the problem of water leakage caused by inadequate sealing.

The utility model discloses an arm support which comprises a cambered surface cover, a lock catch, a wide handle and an arm band plate. The upper surface of the cambered surface cover is provided with a mounting table protruding upwards, and the mounting table is provided with a clamping groove; the lock catch is mounted on the cambered surface cover and is provided with a clamping rib clamped into the clamping groove; the lock catch is provided with a plurality of tongue parts protruding in the radial direction, and a gap is formed between every two adjacent tongue parts. The wide handle is arranged outside the mounting table in a sleeving mode and located below the lock catch. The wide handle is provided with a bulge corresponding to the gap; through grooves are formed in the two sides of the cambered surface cover respectively, and the arm band plate is connected with the cambered surface cover through an arm band. One end of the arm band is connected to the through groove in one side of the cambered surface cover, and the other end of the arm band penetrates through the through groove in the other side of the cambered surface cover and is connected to the arm band plate; the arm support can be worn on the arm, the mobile phone can be limited on the arm support through the cooperation of the support accessory arranged on the mobile phone shell and the arm support, the thickness of the whole arm support is small, a certain contact area exists between the arc-shaped cover and the arm, and wearing is more stable.