34 results about "Surface bonding" patented technology

The utility model discloses a waterproof wear -resisting type slipper relates to slipper technical field, including sole, the top surface bonding of sole has vamp, the top surface of sole is equipped with first drain and second drain, the top of sole is equipped with antiskid salient, the both sides of sole are bonded with first wear -resisting piece, the outer wall mounting of first wear -resisting piece has second wear -resisting piece, one side of first wear -resisting piece is equipped with third wear -resisting piece. This waterproof wear -resisting type slipper is provided with first drain and second drain, when the slipper is contacted with ponding, the user lifts the foot, and the water stain can be discharged quickly through first drain and second drain, prevents the water stain to remain, influences the comfort of wearing, and can first wear -resisting piece, second wear -resisting piece and third wear -resisting piece carry out quick positioning installation dismounting, is convenient for maintenance, and through first wear -resisting piece, second wear -resisting piece and third wear -resisting piece can obviously promote the wear -resisting capacity of slipper.

The utility model relates to the technical field of cartons, in particular to a damp-proof and compression-resistant structure of a color box of a color box carton, which comprises a box body, a box cover is sleeved on the top of the box body, a damp-proof and compression-resistant piece is arranged in the box body and comprises four rectangular vertical pipes arranged in a matrix, reinforcing vertical plates are arranged in the rectangular vertical pipes, and rectangular sliding plates are arranged at the bottoms of the reinforcing vertical plates. Drying agents are placed in the rectangular vertical pipes and located on the two sides of the reinforcing vertical plates, a plurality of air holes a are formed in the opposite side faces of the two rectangular vertical pipes which are oppositely arranged in the front-back direction, and a plurality of air holes b are formed in the opposite side faces of the two rectangular vertical pipes which are oppositely arranged in the left-right direction. According to the damp-proof and pressure-resistant structure of the color box of the color box carton, the rubber sealing lining adheres to the side face of the inner wall of the carton cover to form a sealing structure, moisture is prevented from entering the carton body through a gap between the carton cover and the carton body, the damp-proof and pressure-resistant part is arranged in the carton body, structural reinforcement can be conducted on the interior of the carton body, and the pressure-resistant capacity of the carton body is remarkably enhanced.

One objective is to provide a technique suitable for suppressing thermal deformation occurring in a front-side electrode of a semiconductor device. A semiconductor device comprises a semiconductor layer, a front-side electrode provided on a front surface of the semiconductor layer, a front-side bonding layer selectively provided on a front surface of the front-side electrode, a conductor frame, and a front-side bonding material. The conductor frame is located on one side of a front surface of the front-side bonding layer, and the front-side bonding material connects the conductor frame and the front-side bonding layer.The elastic modulus of the element front surface bonding material is 20% or less than the elastic modulus of the front surface electrode.

The utility model relates to medical nursing auxiliary material technical field, concretely relates to a restraint strap for bed and chair, including restraint strap body, the inside of restraint strap body has the surface of wool, the outside has the hook surface, both can form the bonding, bandage, the middle part of bandage is connected with the outside of restraint strap body, buckle structure, and the both ends of bandage are fixedly connected through buckle structure, the utility model discloses the surface of wool and hook surface bonding design of restraint strap body has solved the adaptability problem caused by the fixed length of traditional restraint strap, and the both ends of the bandage with antiskid silica gel particle are passed through the support structure of bed frame or seat, and the fixed realization through the male head and female head of buckle structure's buckling is fixed, thereby providing a bed and chair dual -purpose restraint device that simple structure, fixed firm and can adapt to different body type users.

The application discloses a manufacturing method of an anti-icing acoustic array module, and the module is manufactured by using an integrated forming process, and specifically comprises the following steps: S1, roughening treatment is performed on the inner and outer surfaces of a high-strength composite material layer to improve the surface bonding strength; S2, polyurea is sprayed on the front surface of the high-strength composite material layer, the thickness is uniform and controlled within the range of 0.5-2 mm; S3, an adhesive is coated on the back surface of the high-strength composite material layer, and a specific thickness of low-modulus polyurethane glue is poured after preheating; and S4, the anti-icing layer is completed by placing in an oven for heating and curing. The application has the advantages of simple process and uniform composite bonding of the anti-icing layer and the acoustic array main body, and can guarantee the acoustic performance of the acoustic array while obtaining the anti-icing capability.

This application relates to the field of optical element technology and aims to solve the technical problem of poor imaging effect in some known lens assembly methods, providing a lens assembly method, apparatus, and lens assembly. The lens assembly method is used to fix a first lens to a second lens. The first lens includes a first optical part and a first connecting part disposed at the edge of the first optical part. The second lens includes a second optical part and a second connecting part disposed at the edge of the second optical part. The first optical part has a first bonding surface, and the second optical part has a second bonding surface. The lens assembly method includes: heating the first lens and softening it; pressing the softened first lens onto the second lens, bonding the first bonding surface to the second bonding surface, and thermally fusing the first connecting part to the second connecting part. The beneficial effect of this application is to improve the accuracy of the first bonding surface bonding to the second bonding surface, thereby improving the imaging effect of the lens assembly.

The utility model relates to a kind of arc surface bonding welding structure of automobile condenser manifold and pipeline in the technical field of automobile air conditioning system, including two manifolds, the middle of two The manifold is provided with a plurality of flat tubes, and is composed of square structure, the top end of the top end of the manifold is equipped with refrigerant inlet and outlet pipeline, one end of the refrigerant inlet and outlet pipeline is equipped with refrigerant inlet and outlet, the bottom end of the bottom end of the manifold is equipped with liquid storage tank, one end of the liquid storage tank is equipped with liquid storage tank inlet and outlet pipeline;Through the hyperboloid cooperation of outer convex arc surface and inner concave arc surface chamfer, increase contact area, make that weld length and thickness increase, molten metal filling is more sufficient, reduce the risk of false welding, welding joint tensile, shear strength promotion, can better withstand vibration and stress in vehicle operation, prolong the service life of condenser;Hyperboloid bonding eliminates the gap of traditional plane connection, form continuous sealing annular weld after welding, without additional sealing.

This utility model discloses a flexible cable connection device with a sealing structure, belonging to the technical field of cable connection devices. It includes an upper housing and a lower housing installed at the bottom of the upper housing. Both ends of the upper housing are fixedly connected to pressure rings, and a sealing gasket A is adhered to the inner surface of the pressure ring. When connecting two adjacent cables, the cables are first installed and fixed, then inserted into the interior of the lower housing. The upper housing is pressed down relative to the lower housing, and the upper housing is inserted into the mounting platform. The insertion end of the upper housing extends to the surface of the rubber frame. Positioning cylinders are symmetrically installed on the inner surface of the upper housing, and positioning posts are symmetrically installed on the inner surface of the lower housing. During insertion, the positioning posts and positioning cylinders are inserted into each other, thus the rubber frame improves the sealing performance at the connection between the upper and lower housings. The sealing gasket A of the pressure ring and the sealing gasket B of the support ring adhere to the outer surface of the cable, providing excellent sealing and good waterproof and seepage-proof performance.

This utility model discloses a battery and a battery pack. The battery includes a cell and a cover plate. The cell includes a body and a tab disposed on the side of the body. The cover plate and the tab are located on the same side of the body. The terminal post in the cover plate is welded to the tab. The battery also includes a first adhesive member, a second adhesive member, and a third adhesive member. The tab has a first surface and a second surface disposed opposite to each other. The first adhesive member is bonded to the first surface, the second adhesive member is bonded to the second surface, and the third adhesive member is bonded to both the second surface and the second adhesive member. The first adhesive member has a first end away from the body, and the second adhesive member has a second end away from the body. There is a first distance between the first end and the second end. Along the direction from the body to the tab, the length of the adhesive portion of the third adhesive member and the second adhesive member is a second distance. The ratio of the second distance to the first distance is 0.1 to 15.

The utility model provides a cold pressing device belongs to timber cold pressing technical field, including cold pressing box, the cold pressing box top is provided with the mobile rolling assembly for rolling cleaning timber, the mobile rolling assembly includes the fixed frame of fixed connection in the cold pressing box top, the inboard rotation of fixed frame is connected with two -way screw rod, the outer surface screw thread connection of two -way screw rod has the moving plate of number two, the inboard rotation of mounting bracket is connected with the rolling roller, the outer surface bonding of rolling roller has the adhesion cover, the cold pressing assembly for two -way quick cold pressing timber is provided with in the cold pressing box inboard. The utility model provides a cold pressing device can pass through mobile rolling assembly, removes the fine sawdust, dust and sundries of timber two sides, avoids the formation concave and convex, scratch or color difference, guarantees the timber's beautiful appearance, and adjusts the interval between two rolling rollers, to be applicable to the plank of different thickness.

The utility model discloses a kind of anti-tear flame-retardant printing machine car stickers, it is related to motor vehicle pasting technical field.The utility model includes bottom layer, the bottom of bottom layer is provided with first viscose layer for being connected with locomotive, the surface of bottom layer is bonded with sticker layer, the size of sticker layer is less than bottom layer, one end of sticker layer is connected with protective layer by hot-pressing, the surface of bottom layer is provided with second viscose layer;Sticker layer is connected with bottom layer after by second viscose layer to protective layer bonding fixed, after bonding, protective layer shields sticker layer.In the utility model, bottom layer is attached on the fixed surface of locomotive, and then can protect sticker layer, reduce abrasion, improve its service life, while sticker layer is set in the case of being covered, can play the role of anti-tear, prevent being maliciously torn off, while through pressure groove can make sticker layer sink, facilitate protective layer to cover it, increase the overall flatness.

1. The name of the design product: curved surface bonding integrated machine. 2. The use of the design product: the curved surface bonding of the design product for labels, back glue, protective film and other products. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.

The application discloses a non-developable curved surface bonding uniform pressing device and a uniform pressing method, relates to antenna cover and mold technology, and comprises a rigid outer frame, an inner cavity with an upper and lower opening, a top plate arranged on one side of the opening of the rigid outer frame and in sliding connection with the rigid outer frame, external load being introduced based on the upper end surface of the top plate, a flexible closed capsule accommodated in the inner cavity of the rigid outer frame, the inside of the flexible closed capsule being filled with a phase change medium with a shear thickening effect, the lower surface of the flexible closed capsule being in contact with a curved surface workpiece to be bonded, and a vibration excitation module fixed to the rigid outer frame and / or the flexible closed capsule and used for applying mechanical vibration to the phase change medium so that the medium triggers the shear thickening effect of the medium under the mechanical vibration. The application can make the bonding surface rubber layer of the non-developable curved surface antenna cover be uniformly distributed, and significantly improve the service stability of the aircraft antenna cover.

The application discloses a kind of based on big data processing's insulation board bonding quality evaluation method, comprising the following steps: obtaining outer wall thermal insulation construction process data and bonding quality detection data, generate construction event record set;Based on construction event record set, generate construction event vector set;Based on construction event vector set, generate construction evolution state vector set and construct construction evolution state diagram;To outer wall surface executes spatial partition processing, constructs observation context set, generates query node set;Perform quality priori adjustment calculation, construct TabPFN model priori distribution structure;Based on observation context set, query node set and TabPFN model priori distribution structure, generate wall surface bonding quality spatial distribution field;Based on wall surface bonding quality spatial distribution field, generate insulation board bonding quality evaluation result.The application can realize the spatialization accurate evaluation of outer wall bonding quality.

This utility model discloses an intelligent turnover box with a modular RFID chip installation structure, relating to the field of logistics container technology. It includes a turnover box body and a cover plate. The cover plate is welded to one side of the turnover box body, and the cover plate and the turnover box body are connected as one unit by ultrasonic welding. A groove is provided at the bottom of the cover plate for attaching the RFID chip. Several guide positioning posts are provided on one side of the turnover box body. This utility model allows for the design of cover plates of different sizes and local structures according to different RFID chips. The cover plate is then securely fixed to the turnover box using ultrasonic welding, enabling the turnover box to have a function of rapid, contactless information reading. Compared to traditional turnover boxes that use surface bonding, bolts, or rivets to fix the RFID chip, this solution uses a modular structure and ultrasonic welding process, which can greatly improve installation efficiency and save labor costs.

The utility model discloses a kind of automatic fiber layering devices, including layering structure, mechanical arm, discharging roller, tension adjusting bin, heating device, transmission roller, control device and compaction bonding mechanism, wherein, compaction bonding mechanism includes electric telescopic rod, flexible rotary shaft, the cylindrical connected by sliding block sliding slot, limit frame and wear-resistant skin layer, when working, mechanical arm drives device to move, discharging roller releases fiber band to adjust tension by tension adjusting bin, then by heating device, transmission roller is hauled to mould surface, compaction stage, electric telescopic rod pushes flexible rotary shaft to bend, cylindrical linkage forms camber, limit frame restricts wear-resistant skin layer transverse movement, so that it only deforms along up and down direction. Through the above structure, the device solves the problems such as poor curved surface adaptation, unstable tension control, weak high-temperature adaptability and other problems of traditional layering equipment, realizes high-precision curved surface bonding, dynamic tension adjustment and automatic continuous operation, and is suitable for a variety of fiber materials.

The utility model discloses an anti-impact ceramic tile relates to the technical field of ceramic tile, including embryo layer, the top surface bonding of embryo layer has anti-impact subassembly, the top surface bonding of anti-impact subassembly has bottom glaze layer subassembly, the top of bottom glaze layer subassembly is equipped with face glaze layer, the inside of embryo layer is equipped with anti -crack fiber net, anti-impact subassembly includes the anti-impact layer of bonding in embryo layer top surface, the top surface of anti-impact layer is equipped with first dentate protruding. That anti-impact ceramic tile sets up anti-impact subassembly, can carry out effective buffer to impact force, makes impact force reduction, avoids the direct transmission of impact force to bottom glaze layer, improves the anti-impact force of ceramic tile, avoids the damage to bottom glaze layer, and anti-impact subassembly through the first dentate protruding of top and the second dentate protruding of bottom glaze layer body bottom interlock, and impact force disperses transmission through interlock surface, reduces local stress concentration, effectively reduces the glaze surface cracking risk.

This utility model discloses a fixture for inspecting the curved surface bonding of titanium alloy irregular parts, including an operating table with a circular hole on its surface. A sealed box is fixedly installed at the bottom of the operating table, and a connecting pipe is fixedly connected to the outside of the sealed box. The other end of the connecting pipe is fixedly connected to a vacuum pump. This utility model places the irregular part on the surface of a support plate, then covers the surface of the irregular part with a black film. By activating the vacuum pump, a vacuum is evacuated from the sealed box, allowing the black film to adhere tightly to the outside of the irregular part. During this process, a servo motor drives a screw to rotate, causing a moving sleeve to move a vertical rod to a specific position. This allows a heating element to heat the black film, further adhering it to the outside of the irregular part. Thus, any depressions or protrusions on the irregular part can be directly exposed to the outside, allowing for more intuitive detection.

This invention discloses an integrated system and process for waterproofing and leveling in bathroom fixtures. The system includes a functional layer subsystem, a material subsystem, and a quality control subsystem. The functional layer subsystem comprises a multifunctional integrated mortar layer and a finishing layer arranged sequentially from bottom to top. This integrated mortar layer has four functions: enhanced penetration, leveling and slope creation, waterproofing and seepage prevention, and surface bonding. The material subsystem includes a polymer-modified cement-based composite material, with cement as the matrix and incorporating redispersible latex powder, cellulose ether, water-reducing agent, hydrophobic agent, and fiber reinforcing material. The quality control subsystem enables data-driven management and control of the entire construction process. The process includes steps such as substrate assessment and pretreatment, joint reinforcement treatment, applying two coats of integrated mortar using a continuous wet-on-wet method and directly laying the finishing material, caulking, and finished product protection. It integrates four independent processes in traditional processes into two core processes, eliminating interlayer interface risks and significantly improving construction efficiency and quality reliability.

Representative implementations provide techniques and systems for processing integrated circuit (IC) dies. Dies being prepared for intimate surface bonding (to other dies, to substrates, to another surface, etc.) may be processed with a minimum of handling, to prevent contamination of the surfaces or the edges of the dies. The techniques include processing dies while the dies are on a dicing sheet or other device processing film or surface. Systems include integrated cleaning components arranged to perform multiple cleaning processes simultaneously.

Provided are a continuous flat pressing surface layer flame-retardant particle board and a preparation method thereof, which can reduce the burning growth rate index of the flame-retardant particle board and the influence of the flame retardant on the surface bonding strength of the particle board. The method comprises: simultaneously atomizing and applying, to raw material particles, 10-15% of the mass of the particles of a melamine modified urea-formaldehyde resin adhesive and 0.5-0.8% of the mass of the particles of a sodium hydroxide aqueous solution with a concentration of 0.4-0.6 mol / L to obtain pretreated surface layer particles, and blending the surface layer particles with a surface layer flame retardant PAP-Mg-Zn at a mass ratio of 100:15-17 to obtain flame-retardant surface layer particles; and laying the flame-retardant surface layer particles and core layer particles in a manner that the surface layer particles are in the upper and lower layers and the core layer particles are in the middle layer, and then continuously flat pressing the board blank at a hot pressing speed of 220-250 mm / s to obtain the continuous flat pressing surface layer flame-retardant particle board. The structural formula of PAP-Mg-Zn is as follows.

The utility model discloses an incoming and outgoing line structure for switch board, including base, the both sides symmetry of base's top surface install the connecting plate, the one side surface fixedly connected with the mounting block of connecting plate, the top surface bonding of connecting plate is connected with the fixed plate, the top surface all around of fixed plate is connected with a plurality of bolts, the bottom surface symmetry of fixed plate installs a plurality of pressure blocks, still include: the top surface symmetry of base is provided with a plurality of barrier components, wherein, barrier component includes with base fixed connection's barrier board, through setting up barrier component, through with the surface of barrier board of setting up sealing washer, when fixed plate is installed on the connecting plate, will not extrude connecting plate and sealing washer to also will not to the surface of cable of over extrusion, simultaneously even when the cable is not placed on some placement board, also can be sealed through the effect of barrier component.

The utility model discloses a novel nano microparticle hot stamping film, including positioning bottom layer and viscose layer, the upper surface of positioning bottom layer is integrally provided with the positioning frame, the upper end of positioning frame is integrally provided with the limit pressure edge, the inside of positioning frame is provided with base film layer, mould pressing layer, activated carbon adsorption layer, decorative layer, nano particle color layer and transparent protective layer from below to above in proper order, the lower surface of base film layer is bonded fixed with the upper surface of positioning bottom layer, the upper surface of base film layer is integrally provided with mould pressing layer, the upper surface of activated carbon adsorption layer is bonded fixed with the lower surface of decorative layer, the upper surface edge of transparent protective layer is bonded fixed with the lower surface of limit pressure edge, the side of positioning frame is provided with a plurality of breathable through -hole to the activated carbon adsorption layer position setting. The above technical scheme, the structure design is reasonable, and the anti -fake and decorative effect are good, can remove peculiar smell, and the edge position is reliable, and the service life is long and practicality is good.

This utility model discloses an RFID asset management tag, relating to the field of RFID tag technology. It includes a base shell assembly composed of a sticker, a tag coating, and a residue-free adhesive layer. The base shell assembly is adhered to the upper surface of the sticker, and an anti-transfer component is provided on the inner side of the base shell assembly. The base shell assembly provides a handheld part for bonding and peeling the sticker, and the anti-transfer component is used to damage the sticker during peeling, thereby permanently damaging the tag coating. This utility model, by setting the base shell assembly and the anti-transfer component, allows the RFID tag to be compressed by a V-shaped spring after it is bonded to an object. When the RFID tag is peeled off, the elastic potential energy generated by the compression of the V-shaped spring is released, causing the V-shaped spring to press downwards into the middle of the sticker, tearing the sticker in the middle and simultaneously damaging and breaking the tag coating, thus achieving an anti-transfer effect. At the same time, no residue is left on the object surface, avoiding the need for subsequent cleaning of residual adhesive.

The application discloses a highway tunnel crack treatment method, to solve the problem that the existing treatment for different width cracks often adopts a single scheme, resulting in insufficient or excessive treatment. The application includes: checking and marking the tunnel lining cracks; according to the crack type and the number of each crack, the corresponding treatment scheme is designed; coating the primer layer; pasting the glass fiber mesh cloth layer; coating the surface sealing adhesive layer and other steps; the hierarchical treatment strategy is adopted for cracks of different widths, achieving the balance between technical effect and economic benefit; the glass fiber mesh cloth layer is bonded to the outer surface of the concrete base layer and covers the crack opening area, reducing stress concentration, improving the overall tensile and shear capacity, and effectively inhibiting crack expansion; the full-surface bonding design of "primer layer-glass fiber mesh cloth layer-surface sealing adhesive layer" is adopted, mechanical interlocking is formed, and the anti-peeling capacity is strong; the crack end is provided with an extension lock area to prevent the mesh cloth from peeling off.

The application relates to an adhesive tape conveying and curing optimization method for an oven in the field of intelligent manufacturing, which comprises the following steps: acquiring real-time position data, material parameter and adhesive tape surface temperature distribution data in the adhesive tape conveying process to obtain initial temperature field data; detecting temperature abnormal area and classifying abnormal types according to the initial temperature field data to obtain abnormal category labels and real-time position prediction sequences of the abnormal area; determining regional hot air control instructions according to the initial temperature field data to obtain heat distribution states by adopting a partitioned hot air control algorithm; dynamically adjusting oven heat source power according to the updated heat distribution states to obtain optimized temperature gradients by adopting a fuzzy control algorithm; real-time updating flow velocity and flow direction parameters of a hot air circulation system according to the optimized temperature gradients to obtain a stable adhesive tape curing temperature field; and adjusting the running state of the hot air circulation system according to the final curing parameters and real-time monitoring adhesive tape surface bonding strength to obtain consistent curing quality data.

The present application relates to a kind of atomic gas chamber and its preparation method.The preparation method of atomic gas chamber includes: providing intermediate cavity layer, first cover plate and second cover plate;Wherein, intermediate cavity layer is square tubular structure with oppositely arranged first open end face and second open end face;Dripping acid solution on the first open end face, and placing the first open end face downward on the first cover plate, the first open end face is bonded with the surface of the first cover plate, and a semi-closed cavity is formed;First high-temperature treatment is carried out to the semi-closed cavity, so that the first open end face is bonded with the first cover plate;Dripping acid solution on the second open end face, and placing the second open end face downward on the second cover plate, the second open end face is bonded with the surface of the second cover plate, and a fully closed cavity is formed;Second high-temperature treatment is carried out to the fully closed cavity, so that the second open end face is bonded with the second cover plate.Such, the high gas tightness of gas chamber glass shell bonding interface and the high optical quality of light surface can be considered.

This invention relates to the field of semiconductor cutting UV anti-adhesion tape preparation technology, and discloses a high-temperature resistant, low-modulus UV anti-adhesion substrate and its manufacturing method. The substrate is an in-situ interface-anchored three-layer co-extrusion casting structure, composed of a corona layer, an interface bonding layer, and a low-modulus heat-resistant support layer; all three layers are made of high-melting-point thermoplastic resin. This invention, through the compounding of components of the corona layer, support layer, and interface bonding layer, ensures that each resin and additive plays a specific function. The corona layer is mainly composed of polyolefin elastomer (POP), which can reduce the substrate modulus and improve flexibility, thereby ensuring smooth film expansion during chip cutting and improving curved surface bonding ability; combined with cyclic olefin copolymer (COC), it improves heat resistance and reduces high-temperature shrinkage, allowing the substrate to maintain dimensional stability at 150°C; the addition of block polypropylene can improve toughness and impact resistance, while improving surface polarity, allowing the substrate to be directly coated with UV anti-adhesion tape without a primer.

The utility model provides a kind of high reliability super five kinds of data cable, it is related to super five kinds of data cable technical field, including: data cable body, the data cable body includes cable outer structure layer and twisted pair wire core, the twisted pair wire core outer surface is provided with PI resin sheath layer, the cable outer structure layer inboard is wrapped with twisted pair wire core by mylar band layer, the data cable body outer surface is provided with umbrella-shaped splint, the mylar band layer outer surface is adhered with conductive cloth layer, the conductive cloth layer outer surface is wrapped with polyether ether ketone reinforcing layer, the polyether ether ketone reinforcing layer outer end is provided with polyester waterproof layer, copper wire braiding net layer is provided between the polyether ether ketone reinforcing layer and polyester waterproof layer.The utility model solves the problem that the mechanical strength of the metal aluminum foil material shielding layer of the prior art super five kinds of data cable is weak, easy to wear with metal braiding layer, resulting in the problem of cable shielding effect decline.

The utility model discloses an anti -infiltration car carpet relates to car carpet technical field, including carpet surface layer, the top surface of carpet surface layer is bonded with the water guide layer, the surface of water guide layer is bonded with the felt layer, the bottom surface fixedly connected with a plurality of collection box of carpet surface layer, the surface of carpet surface layer and the surface of water guide layer all are equipped with the water guide hole, and the water guide hole between upper and lower sides is intercommunication, and the water guide hole is linked together with the inner chamber of collection box, and one side wall of collection box is connected with the drain, and the end of drain is installed with the lid. The utility model discloses a water guide layer is arranged in the carpet surface layer, so that the water that falls on the surface of water guide layer can be collected into the collection box through the water guide hole, so that when the car user cleans the car carpet, the lid can be twisted open, and the liquid in the collection box is poured out, so that the car carpet has the anti -infiltration function, and the liquid can be avoided to infiltrate into the car body and cause the adverse effect to the environment in the car.