74results about How to "Will not destroy" patented technology

The utility model provides a plate-fin heat exchanger with a protective structure. The plate-fin heat exchanger with the protection structure comprises a heat exchanger body, a plurality of sets of fins are evenly installed on the outer wall of the heat exchanger body, annular discs are installed on the outer walls of the left end and the right end of the heat exchanger body, and a plurality of sets of limiting grooves are evenly formed in the side walls of the two sets of annular discs; the inner wall of each limiting groove is connected with a limiting block in an inserted mode, and the outer wall of each limiting block is provided with a rectangular plate. According to the plate-fin heat exchanger with the protection structure, before the heat exchanger body is carried, the locking assemblies are controlled to move away from the inlet ends of the limiting grooves, and then the rectangular plates provided with the limiting blocks are sequentially inserted into the limiting grooves; and meanwhile, the left sides and the right sides of the fins are correspondingly wrapped by the two sets of partition plates installed on the rectangular blocks on the rectangular plates, the fins are protected against damage of external pressure, and workers cannot be scratched by the sharp fins in the carrying process.

The present application relates to a kind of based on three-dimensional point cloud data's tree crown layer effective coverage estimation method and system.The based on three-dimensional point cloud data's tree crown layer effective coverage estimation method and system described in the application include: obtaining the three-dimensional point cloud data of target area;The three-dimensional point cloud data is preprocessed;Pulse is set in the three-dimensional point cloud data;The three-dimensional point cloud data is input into tree crown layer effective coverage estimation model, obtains crown layer data and the weight of point on pulse, according to the three-dimensional point cloud data, crown layer data and the weight of point on pulse, estimates tree crown layer effective coverage.The based on three-dimensional point cloud data's tree crown layer effective coverage estimation method and system described in the application have the advantages that data acquisition mode is simple, fast and accurate in calculating tree crown layer effective coverage.

This application relates to a drip irrigation curing bucket fixing frame for a bridge pier bearing pad, comprising: a frame body; a base installed at the bottom of the frame body; and a fixing assembly including a sleeve, a clamping block, a movable rod, and a limiting member. The sleeve is installed on the side of the base away from the frame body and is inserted into the anchor bolt hole of the bearing pad. The sleeve has a through hole in its wall, and the clamping block is movably installed in the through hole along the radial direction of the sleeve. The movable rod has a first part and a second part arranged along the axial direction, the diameter of the first part being larger than the diameter of the second part. The movable rod is movably inserted into the sleeve along the axial direction, so that when the movable rod moves, it switches between the first part and the second part abutting against the clamping block. The limiting member is installed on the sleeve to limit the position of the movable rod. This utility model can switch between the fixed and relaxed states of the fixing frame without damaging the structure of the bearing pad itself.

The invention discloses a method for rapidly and efficiently preparing a series of novel ester group facaplysin derivatives by combining EDCI and HOBT to react with carboxyl facaplysin and directly carrying out ester exchange reaction on an active ester intermediate and alcohol without separation. The invention also discloses application of the derivatives in resisting methicillin-resistant staphylococcus aureus and escherichia coli. The preparation method comprises the following steps that EDCI and HOBT are combined to activate carboxyl facaplysin for reaction, an activated ester intermediate is generated, the activated ester intermediate and alcohol are directly subjected to esterification reaction without separation, and a series of ester-based facaplysin derivatives are obtained. According to the preparation method, ester-based Fascaplysin derivatives with different structures can be rapidly and efficiently constructed, and compared with a traditional method that ester-based carboline derivatives are firstly synthesized and then high-temperature intramolecular cyclization is performed, the time and the raw material cost are greatly saved, the synthesis efficiency is improved, the reaction process is observable and controllable, and the yield is stable. And the synthesized ester group facaplysin derivative has excellent antibacterial activity on methicillin-resistant staphylococcus aureus and escherichia coli.

The utility model belongs to pipeline monitoring equipment technical field, especially relates to a pipeline safety monitoring device. The ferrule assembly in this pipeline safety monitoring device is fixed on the pipe body through the way of sleeve joint, makes the position of ferrule assembly and the position of pipe body keep consistent, and the both ends of monitoring assembly are connected to the ferrule assembly on the two pipe bodies that butt against each other respectively, so that the installation of this pipeline safety monitoring device is more convenient, and the installation of monitoring assembly will not destroy the structure of pipe body, thereby avoiding the deformation or the leakage, the burst pipe and so on of pipe body due to the installation of monitoring assembly, to ensure that the operation of pipeline is not affected by the installation of this pipeline safety monitoring device.

The application provides a high-depth-width-ratio hard mask removing method, which comprises the following steps: providing a first semiconductor structure, the first semiconductor structure comprising a second semiconductor structure and two hard mask structures which are spaced apart from each other on the second semiconductor structure; forming a groove between the two hard mask structures; filling BARC in the groove between the two hard mask structures; etching the two hard mask structures and the BARC at a constant ratio until the height of the two hard mask structures is 1 μm or below; removing the remaining BARC; and removing the remaining two hard mask structures. The BARC is filled in the groove of the hard mask structure, the selectivity of the hard mask structure and the BARC is adjusted by etching, the hard mask structure is thinned to 1 μm or below, and the hard mask structure is removed after the BARC is removed. Since the hard mask structure is thinned, the time of wet etching is reduced, the acid solution does not have enough time to enter the groove of the gate oxide structure, and the gate oxide structure will not be damaged.

The application relates to a video labeling method and device, computer equipment, a storage medium and a computer program product. The method comprises the following steps: acquiring a playing time corresponding to a to-be-labeled image frame in a playing video; the to-be-labeled image frame is located in a video layer; labeling the to-be-labeled image frame in a labeling layer to obtain labeling information corresponding to the playing time; the labeling information is information of a target labeling frame corresponding to the to-be-labeled image frame, and the target labeling frame is located in the labeling layer; saving the playing video and the labeling information corresponding to the target labeling frame of each playing time in the labeling layer to obtain a labeled target video. The method can improve the efficiency of video labeling.

The invention relates to the technical field of circuit board film pasting, and particularly discloses a PCB film pasting method and film pasting equipment. The method comprises the following steps: assembling a pressing assisting layer and a dry film layer on PCB film pasting equipment; the pressing assisting layer and the dry film layer are conveyed through PCB film pasting equipment, a hot pressing roller on the PCB film pasting equipment is matched with the hard layer in a rotating mode, the pressing assisting layer abuts against the dry film layer, and the soft layer is attached to the polyethylene protective film; the production state of the PCB film pasting equipment is debugged, and debugging of the PCB film pasting equipment is stopped until wrinkles or bubbles do not appear between the auxiliary pressing layer passing through the hot pressing roller and the dry film layer within the preset distance; the PCB film pasting equipment is used for conveying the board to be pasted with the film, the board face of the board to be pasted with the film is attached to the dry film photosensitive layer, and the hot pressing roller is controlled to conduct hot pressing on the dry film layer to the board to be pasted with the film; and taking down the pressing assisting layer passing through the hot-pressing roller to obtain a processed finished product. According to the method, accurate lamination of the dry film layer on the to-be-laminated plate is realized by means of the pressure-assisting layer, and the product yield of film lamination operation is improved.

The invention discloses a cigarette positioning device, a cigarette making and plug assembling machine and a cigarette positioning method, and relates to the technical field of tobacco equipment. According to the cigarette positioning device, the two transmission ring assemblies can rotate synchronously with the transmission drum wheel, and when the first positioning wheel and the second positioning wheel abut against the two ends of a to-be-cut cigarette respectively, the to-be-cut cigarette can be limited from the two sides, so that the cutting accuracy is improved, and the cutting efficiency is improved. The first positioning wheel and the second positioning wheel synchronously rotate with the conveying drum wheel and are consistent with the rotating speed of the to-be-cut cigarettes, the situation that the outer surfaces of the to-be-cut cigarettes are damaged due to friction of the to-be-cut cigarettes is avoided, the structure is simple, and maintenance convenience is high. According to the cigarette making and plug assembling machine, by arranging the cigarette positioning device, the cigarette to be cut can be positioned, and it is ensured that the length of a finished cigarette obtained after the cigarette to be cut is cut reaches the standard. According to the cigarette positioning method, the cutting accuracy is improved, and it is ensured that the length of the cut finished cigarette reaches the standard.

The utility model discloses a kind of automobile rear end cover punching is prevented from deformation clamp, it is related to automobile processing equipment technical field, including: substrate;The top side of substrate is fixedly provided with backplate, the front of backplate is fixedly provided with bracket, automobile rear end cover is installed in bracket upper side, the top of bracket is provided with stopper fixed on the outer wall of backplate, the both sides of substrate top are provided with push mechanism, the top side of push mechanism is provided with locking clamp, locking clamp and stopper are at least used to the fixed clamping of automobile rear end cover on bracket, push mechanism is at least used to drive locking clamp to open and close, the inside below of bracket is provided with moving module.The bracket used, the installation of automobile rear end cover on it can be realized, and the fixation of automobile rear end cover on bracket is realized using stopper and locking clamp, simultaneously using moving module can drive top holding component to move, so that top holding component changes the position below automobile rear end cover.

This invention relates to the field of petrochemical building technology, specifically to a petrochemical explosion-proof structure and its manufacturing method, comprising an explosion-proof wall, an inner frame assembly, a roof sliding assembly, and a load-bearing device. The inner frame assembly is connected to the inner wall of the explosion-proof wall. A roof sliding assembly is provided between the outer side of the top of the inner frame assembly and the explosion-proof wall. By setting the roof sliding assembly, the inner frame assembly can avoid bearing horizontal explosion loads in the event of an explosion, thereby further ensuring that it will not be damaged by the explosion. The load-bearing device is located below the explosion-proof wall and the inner frame assembly and is hinged to the explosion-proof wall and the inner frame assembly, improving the safety and applicability of the explosion-proof building. The explosion-proof wall provides sufficient planar stiffness to resist the impact load of the explosion, thereby ensuring the safety and applicability of the explosion-proof structure.

The application discloses a portable chromatographic detection device and application thereof, and belongs to the technical field of detection devices. The device comprises a top cover, a base, a test strip and a flexible PCB circuit board. The test strip comprises a sample pad, a binding pad, a nitrocellulose membrane, a water absorption pad and a supporting back plate. The nitrocellulose membrane has a patterned electrode as an electric channel, and is divided into a clamping area and a detection area for solution flow. The clamping area is connected with the flexible PCB circuit board through a magnetic attraction connector. One end of the detection area is connected with the water absorption pad in a top-overlapping manner, the other end of the detection area is connected with the binding pad in a top-overlapping manner, and the other end of the binding pad is connected with the sample pad in a top-overlapping manner. Hollow windows are formed in the top cover at the sample pad and the nitrocellulose membrane. The detection device is convenient to carry, has various functions, is high in sensitivity and integration, can be used in combination with computers, mobile phones and other equipment, and is particularly suitable for use in families, fields and other places.

The utility model relates to a wind rope fixing device for a tent, the top periphery of the tent is provided with a cornice edge, and the wind rope fixing device comprises an upper pressing plate, a lower pressing plate, a pull rope ring, a fastening bolt and a positioning pin; the upper pressing plate and the lower pressing plate are oppositely arranged and are hinged with each other by taking the fastening bolt as a rotating shaft, the fastening bolt is fixedly connected with the lower pressing plate, the upper pressing plate is provided with a sleeve and is rotationally connected with the fastening bolt by sleeving the fastening bolt with the sleeve, a side hole is formed in the side wall of the sleeve, and a groove is formed in the position, corresponding to the side hole, of the fastening bolt; a core-spun rope is arranged in the cornice edge, the core-spun rope is clamped by the upper pressing plate and the lower pressing plate, and the positioning pin penetrates through the side hole and is inserted into the groove to limit the relative rotation of the upper pressing plate and the lower pressing plate, so that the upper pressing plate and the lower pressing plate are relatively fixed to clamp the core-spun rope; the pull rope ring is connected to the fastening bolt, and the wind rope is connected to the pull rope ring. According to the wind rope fixing device, the wind rope can be stably connected to the tent, and the tent is not prone to being torn when encountering wind force in different directions.

This invention relates to a vacuum preloading device and method for reinforcing soft soil foundations using a floating raft cushion. The reinforcement device includes a sealing wall surrounding the soft soil foundation, with a floating raft cushion covering the soft soil foundation within the sealing wall. A drainage board is installed below the floating raft cushion, vertically inserted into the soft soil foundation with its upper end penetrating into the floating raft cushion. A vacuum sealing membrane covers the floating raft cushion, and a vacuum loading system is connected to the outside of the floating raft cushion. The vacuum loading system generates a vacuum negative pressure within the floating raft cushion to draw water from the soft soil foundation through the drainage board. This reinforcement device can be used on general soft soil foundations, extremely soft soil foundations, and suspended silt foundations. The construction process does not require the accumulation of large amounts of sand cushion layers, and reinforcement can be completed without multiple treatments, saving a significant amount of sand resources. It provides good preloading effect, a short construction cycle, and high efficiency. Furthermore, the floating raft cushion can be reused without damaging or polluting the environment, thus reducing construction costs and effectively protecting the environment.

The invention belongs to the technical field of polymer preparation, and particularly relates to a self-supporting polypyrrole nano array as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) dispersing an aqueous solution of hydroxypropyl-beta-cyclodextrin on an ice surface, then adding a pyrrole monomer, and standing to form a dispersion liquid; and (2) dropwise adding an acid solution containing an oxidizing agent into the dispersion liquid, reacting, washing and drying to obtain the self-supporting polypyrrole nano array. Compared with zero-dimensional polypyrrole nano-particles or polypyrrole nano-sheets, the array structure is a pre-constructed continuous conductive path. Moreover, the network structure of the polypyrrole nanosheet array with the self-supporting structure can interpenetrate with a resin matrix, uniformly transfer stress, inhibit crack propagation and easily form a continuous conductive path, high conductivity can be realized by a low addition amount, and the polypyrrole nanosheet array can be used as a conductive filler of polyurethane in the technical field of 3D printing; the mechanical property and the antistatic capability of the product are improved.

The utility model discloses a simple drawing device for disassembling a conical surface matched roller shaft, and belongs to the technical field of spinning. The bottom plate and the top plate are arranged, the grooves in the bottom plate are clamped on the end face of the drafting roller, the drafting roller can be pulled down from the roller shaft by matching with rotation of the bolts, and the surface of the drafting roller cannot be damaged; by means of the three screws evenly distributed on the periphery of the open groove, the bottom plate can be stressed more evenly in the drawing process, so that the end face of the drawing roller is stressed evenly, and the drawing roller can be pulled down from the roller shaft more conveniently.

The utility model discloses a cable insulation layer pruning device for electric power construction, including optimal arc plate still include: rotating subassembly, clamping assembly, handle, pruning assembly, one side fixed connection handle of optimal arc plate, the clamping assembly that the optimal arc plate is connected to the cable and is limited. The utility model grips handle and takes this device, and the cable that needs to be pruned is between two clamps, and the cable is limited through the clamping assembly, and there is self -locking structure between worm wheel and worm, and worm wheel and worm do not rotate automatically, according to the cutting position of cable, through pruning assembly, make the sharp knife of pruning insert the insulation layer of cable, and the depth of insertion is same with the thickness of insulation layer, and the top silk is screwed on, and the top silk is against the guide rod, avoids the guide rod movement in subsequent operation, causes the sharp knife of pruning to cable pruning excessive, destroys the copper wire etc. in the cable, through rotating subassembly, makes the sharp knife of pruning cut a circle to the insulation layer of cable, completes the insulation layer pruning of cable.

The invention belongs to the technical field of nano material preparation, discloses a zero-dimensional perovskite nanocrystalline large-scale preparation method based on a room-temperature self-assembly strategy, and aims to solve the technical problems that in the prior art, the uniformity of a product is poor, high luminous efficiency and conductivity are difficult to achieve at the same time, and the wavelength cannot be accurately regulated and controlled. According to the method, a water-in-oil microemulsion system is adopted as a nanoreactor, and the high uniformity of nanocrystal growth is fundamentally guaranteed through a confinement reaction. The composition creatively comprises two ligands: one ligand is a pi-conjugated conductive main functional ligand with surface passivation and charge transfer functions, which solves the problem of poor conductivity caused by the traditional insulating ligand while ensuring high photoluminescence efficiency, and the other ligand is a competitive tuning ligand which forms dynamic competitive balance with the main ligand. The key problems of product uniformity, conductivity, wavelength controllability and the like are synergistically solved, and the prepared nanocrystal has high optical purity, high quantum yield and excellent conductivity.

The utility model belongs to the technical field of refractory metal preparation, and particularly relates to a device for preparing refractory metal powder through layered reduction, which comprises a reactor, a heater and a tray, diluted salt and a reducing agent are laid in the reactor, refractory metal oxide raw materials are contained in the tray, and the tray can be submerged in the reducing agent or the diluted salt in a lifting mode. The top of the reactor is connected to vacuum equipment through a vacuumizing pipe; a gas inlet and a gas outlet which are used for introducing inert gas into the reactor and discharging inert gas from the reactor are also formed in the top of the reactor. The device also provides a new preparation mode for tantalum powder, reduction is carried out for a certain time in the upper magnesium melt, the influence of diluted salt in the reduction process is eliminated, and the product structure is not damaged; and then entering a lower layer diluted salt molten salt system, and preserving heat for a period of time, so that the surface activity of tantalum powder particles can be improved, the impurity content is reduced, the growth and sintering of small particles are promoted, and the particle uniformity and pore structure are improved.

The application relates to the technical field of fiber processing, and discloses a high-wear-resistance modified fiber and a preparation method thereof.The modified fiber prepared by the application is prepared from polyester material taking terephthalic acid as a binary acid, ethylene glycol and 1,2-propylene glycol as binary glycol as a main matrix, and adding modified carbon black and polyethylene wax for mixing, melt extrusion, melt spinning, drawing and impregnation; the modified fiber realizes the synergistic promotion of wear resistance and antistatic performance on the basis of keeping good mechanical properties of polyester fiber, and has a wide application prospect in the field of industrial textiles.

The application provides a side air curtain device and folding method, relates to the technical field of automobile safety, and comprises an air bag body and a gas generator. The air bag body comprises a main cavity, a guide air bag and a small air bag cavity. The main cavity is formed by a main cloth piece one and a main cloth piece two. The main cloth piece one is arranged close to a metal plate side, and the main cloth piece two is arranged close to a passenger side. The guide air bag is arranged in the small air bag cavity, the gas generator is installed in the guide air bag, and the guide air bag is provided with a flow guide hole. The gas generator generates gas to flow into the guide air bag, the flow guide hole guides the gas flowing into the guide air bag to the small air bag cavity, and the two sides of the small air bag cavity along the vehicle length direction are in a tearable state or an open state. After the gas in the guide air bag flows into the small air bag cavity, the small air bag cavity is inflated and breaks through the two sides of the small air bag cavity to flow into the main cavity. By arranging the main cavity, the guide air bag and the small air bag cavity, the air bag body can cross over and not damage the pillar trim panel when being unfolded, and the structure is simple and easy to install.

The present application relates to a kind of vertical take-off and landing aircraft duct drive lubrication detection method, belong to vertical take-off and landing aircraft power system state monitoring field.It includes the following steps: setting temperature sensor on the outer side of upper and lower annular guide rail of duct motor, mirror image orthogonal distribution is synchronously collected temperature data and storage;Extract 7 temperature basic characteristics, calculate lubrication state comprehensive quantitative index and pulse stability index, construct normalized seven-dimensional feature vector, match 5 typical fault modes by weighted Euclidean distance method;Fusion mirror image symmetry and theoretical model health index realizes sensor self-checking and fault tolerance, temperature compensation is carried out to failed sensor using first-order fourier series model;Based on four-stage cumulative loss model, the residual life of lubricating grease is quantitatively evaluated, and finally a comprehensive diagnostic report is generated.The present application has low hardware cost, easy installation, early warning, precise fault classification ability, which can effectively ensure the safe and stable operation of duct drive.

The utility model discloses an edge protective fence fixing device and a protective device.The edge protective fence fixing device comprises an embedded part and a connecting piece, the embedded part is used for being embedded in the edge position in a protective main body, a connecting hole is formed in the embedded part, and the connecting piece is connected with the embedded part. An opening of the connecting hole faces the side face of the protection body and communicates with the exterior of the protection body; the connecting piece comprises a fixing frame used for being matched with the connecting hole so as to be connected to the embedded part and a mounting frame fixed to the fixing frame, and the mounting frame is used for mounting the protective fence. According to the edge protection fence fixing device, the protection fence can be installed on the side face of the protection main body, so that the protection fence does not need to be disassembled in the construction period of a decorative surface layer, normal proceeding of construction procedures is guaranteed, the construction efficiency is greatly improved, the protection main body can be protected in the whole construction period, and safety and reliability in the whole construction period are guaranteed. And the device is convenient to mount and dismount, does not damage the protection main body, can be recycled, and is high in universality, cost-saving and high in practicability.

This invention discloses an MPVE-blended reinforced double-wall corrugated pipe, comprising a corrugated pipe and a connecting structure. A supporting flexible tube is disposed inside the corrugated pipe. The connecting structure is mounted on the corrugated pipe and includes a connector, a guide block, a sealing ring, and a guide groove. The guide groove is formed on the supporting flexible tube. The connector is installed at one end of the corrugated pipe, the guide block is installed on the connector, and the sealing ring is installed on the connector. The connector is inserted into the supporting flexible tube along the direction of the guide groove via the guide block. This invention relates to the field of pipe processing equipment technology and has the following beneficial effects: The corrugated pipe has a supporting flexible tube inside and connecting structures at both ends. Through the cooperation between the components of the connecting structure, it is convenient and quick to connect two corrugated pipes of the same size. At the same time, the supporting flexible tube inside the corrugated pipe can further enhance the structural performance of the corrugated pipe and prevent leakage due to damage to the corrugated pipe.

The present application belongs to the technical field of subgrade engineering, and in particular to a cement-improved copper tailings subgrade construction compactness detection method based on image processing. The specific steps of the present application are as follows: S1, 3D scanning technology is used to obtain point cloud data of the subbase and the cement-improved copper tailings subbase layer after paving and rolling, and the volume of the cement-improved copper tailings subbase layer in the detection point range after paving and rolling is calculated; S2, SEM scanning technology is used to collect images of the surface of the cement-improved copper tailings subbase layer in the detection point range after paving, and the images are filtered and histogram equalization processed, and the area of the surface pores in the detection point range is calculated; S3, the material quality of the cement-improved copper tailings subbase layer in the detection point range is calculated; and S4, the compactness of the cement-improved copper tailings subbase is calculated. The present application can be used for non-destructive, rapid and scientific guidance of the cement-improved copper tailings subgrade construction compactness detection, and effectively controls the quality in the construction process.

The utility model discloses a simple positioning device for an embedded channel, which belongs to the technical field of embedded channels, and comprises an outer template, a channel, a T-shaped component and a full-thread screw, the right side of the outer template is fixedly connected with a support frame, two through holes are formed in the outer template, a notch is formed in the channel, and the T-shaped component is fixedly connected with the full-thread screw. A first nut, a flat gasket, a second nut and a third nut are sequentially arranged on the outer side of the full-thread screw, the T-shaped assembly, the full-thread screw and the first nut are assembled into an assembly, the channel and the T-shaped assembly are installed on the left side of the outer formwork, the full-thread screw penetrates through a through hole of the outer formwork, and the flat gasket, the second nut and the third nut are installed on the right side of the full-thread screw. A three-wire fixing mode is adopted, the quality problem of pre-embedded installation of the prefabricated box girder channel is solved, notch deformation caused by heat treatment is avoided, a cable bridge support can be conveniently installed, the channel is fixed through the simple channel positioning device, a plating layer of the channel cannot be damaged, the anti-corrosion durability of a channel pre-embedded part cannot be affected, and the service life of the channel is prolonged. And the channel is accurately positioned without deformation.

The present disclosure relates to an active additive and method for slag wax resource utilization, which uses industrial solid waste coal gangue and activated carbon as the main component of adsorption impurity removal. On the one hand, coal gangue and activated carbon are green and environmentally friendly materials, which will not cause damage to the environment during use and subsequent treatment, and can improve the environmental performance of slag wax resource utilization. On the other hand, through the synergistic effect of coal gangue, activated carbon and polyacrylamide, the impurity removal effect of slag wax resource utilization can be improved, thereby reducing the ash content of the product wax. In addition, the active additive is used to adsorb and dissolve the impurities in the slag wax in the slag wax resource utilization process, the reaction process conditions are relatively mild, the process flow is short, and it is conducive to improving the utilization rate of resources.

The utility model discloses a greenhouse film fixing device with good stability. The greenhouse film fixing device comprises a greenhouse film support. A greenhouse film body is arranged on one side of the greenhouse film support. A connecting block is arranged at the upper end of the greenhouse film body, a pressing groove is formed in the middle of the bottom of the connecting block, an anti-falling block is fixedly connected to one side of the pressing groove, and an anti-falling groove is formed in one side of the anti-falling block; wherein a connecting frame is arranged below the greenhouse film body, a fixing groove is formed in the inner side of one end of the connecting frame, and a threaded hole is formed in the middle of the other end of the connecting frame; wherein a sliding seat is arranged on one side of the fixing groove, a sliding groove is formed in one side of the sliding seat, a threaded rod is rotationally connected to the other side of the sliding seat, the greenhouse film body is fixed between the greenhouse film support and the connecting block through the connecting frame and the sliding seat, and the stability between the greenhouse film body and the greenhouse film support is enhanced; and the complete greenhouse film is not easily influenced by pulling during use, so that the service life of the greenhouse film is prolonged.