182results about How to "Avoid crush damage" patented technology

The invention discloses a buffer type nuclear power stop valve suitable for a high-pressure environment, and relates to the technical field of nuclear power stop valves, the side face of a valve body is fixedly connected with a connecting component, and one end of the valve body is fixedly connected with a cleaning component. By means of the structure, the screen plate filters impurities in fluid, the impurities mixed with the fluid are prevented from entering the valve body and scratching the side face of the valve body, meanwhile, the fluid impacts and enters the valve body through the screen plate, the fluid impacts the screen plate, and therefore the fluid is prevented from entering the valve body. The mesh plate drives the ejection mechanism to be far away from the mesh plate through the telescopic rod, meanwhile, through impact force of fluid to the mesh plate, part of impact force is absorbed, impact of the fluid to the valve clack during opening is relieved, and an effective buffering effect can be provided in a high-pressure environment.

The invention discloses an automatic feeding device for annular inductor winding, and relates to the technical field of annular magnetic core conveying, the automatic feeding device comprises a conveying belt, a positioning and stacking mechanism is arranged at the output end of the conveying belt, an automatic feeding mechanism is arranged above the positioning and stacking mechanism, and the positioning and stacking mechanism comprises a positioning platform, a lifting circular truncated cone and a hollow stacking box; a positioning round hole is formed in the positioning platform in a penetrating mode, the lifting round table is arranged in the positioning round hole and has the freedom degree of moving in the height direction of the positioning platform, the hollow stacking box is arranged over the lifting round table, two supporting blocks are symmetrically arranged in the hollow stacking box in the horizontal direction, and the supporting blocks are arranged in the hollow stacking box in a sliding and penetrating mode. The supporting block has the freedom degree of moving in the horizontal direction, the annular inductor is supported through the supporting block, the diameter of the lifting circular truncated cone is smaller than the outer diameter of the annular inductor, the diameter of the lifting circular truncated cone is larger than the inner diameter of the annular inductor, and therefore annular magnetic cores can be fed without shutdown, and the feeding efficiency is improved.

The invention discloses a flat gate valve with a good sealing structure, and relates to the technical field of flat gate valves, the top of a valve body is fixedly connected with a control part, the side face of the valve body is fixedly connected with a filtering part, and the side, away from the filtering part, of the valve body is fixedly connected with an anti-blocking part. When the control component is opened and oil or other substances normally pass through the valve body, the contact mechanism pulls the first spring to move on the guide rod through the impact force of the fluid, and when the control component is closed and the impact force of the fluid passing through the valve body is smaller than the tensile force of the first spring, the contact mechanism pulls the first spring to move on the guide rod through the tensile force of the first spring. And when oil or other substances pass through the gate valve, the oil or other substances are partially deposited and remained on the inner side of the gate valve, so that the phenomenon that the valve body is not tightly sealed is avoided.

The invention relates to the technical field of conductivity detection, in particular to a connector conductive terminal electroplating detection system. Comprising an unwinding device and a winding device; the unwinding device and the winding device are respectively used for unwinding and winding a material belt with a conductive terminal; a detection device is arranged between the unwinding device and the winding device; the detection device comprises a base; an auxiliary motor is arranged at the rear position of the base; an output shaft of the auxiliary motor is fixedly connected with a detection roller forwards; the detection roller is located right above the base, and the axial direction of the detection roller is consistent with the front-back direction of the base; a plurality of detection pieces are uniformly arranged on the outer wall of the detection roller in the circumferential direction; according to the invention, the plurality of detection pieces on the outer wall are driven by the detection roller to be in contact with the conductive terminals on the material belt in the conveying process in sequence, so that the conductivity detection of the conductive terminals of the connector is completed without pause, and the electroplating detection efficiency of the conductive terminals of the connector is improved.

The invention discloses a cable-protecting tensioning device for power construction installation, and relates to the technical field of power construction, the top of a base is fixedly connected with a supporting frame, through arrangement of a limiting mechanism, when the cable pulling speed is high, a round block is driven by a tensioning wheel to pass through an installation groove, the round block and a limiting block are extruded, and therefore the cable can be protected; a limiting block drives a connecting rod to move downwards in an inner cavity of a mounting groove through a first limiting rod, meanwhile, a first spring is extruded, and when the connecting rod moves downwards, a second limiting rod is driven through a fixing rod to slide downwards in a second limiting hole, so that when the circular block is quickly mounted in the mounting groove, the circular block can be quickly mounted in the mounting groove; and the second limiting rod can make contact with the side face of the circular block, and meanwhile, the second limiting rod is made of rubber, so that the friction force between the second limiting rod and the circular block is increased, and the phenomenon that the cable is broken due to the fact that the cable pulling speed is too high is avoided.

The utility model relates to the technical field of postpartum training, and provides a gynecological postpartum rehabilitation training device which is characterized in that a fixing frame is fixedly connected to the left side of the lower end of a training bed, a sliding training plate is slidably connected to the surface of a rod body on the inner side of the fixing frame, and a pedal plate is rotatably connected to the inner side of the upper end of the sliding training plate; according to the leg training device for the puerpera, the feet of the puerpera can be bound to the right side of the pedal plate under the action of the arranged foot bandage, the pedal plate can be driven to move towards the right side through stretching and retracting of the legs, the arranged training spring can be stretched, and therefore the puerpera can be exercised, and the puerpera can be exercised. The number of the training springs can be increased or decreased under the action of the arranged hooks so that adjustment can be carried out according to the rehabilitation training effect of the puerpera, the pull rope can be moved by pulling the grip, rehabilitation training can be conveniently carried out through cooperation of the arms and the legs, and the rehabilitation training effect of the hands and the legs is improved.

The invention discloses machining equipment of a special electromagnetic wire for a large transformer, and relates to the electromagnetic wire machining technology. A bottom plate is fixedly connected to the top of a base. A feeding component is arranged, a wire coil is installed on a rotating frame, one end of a wire penetrates through a circular plate, and a first motor is turned on to drive the wire coil to rotate; the rotating frame is driven by the output end of the first motor to rotate at the top of the fixing base, so that the rotating frame drives the wire coil to conduct discharging work, meanwhile, the wire continuously passes through the circular plate to make contact with the arc-shaped frame, and meanwhile, the balls are arranged on the arc-shaped frame, so that when the wire penetrates through the circular plate to be fed, the wire coil is not prone to falling off. By arranging the arc-shaped frame, the situation that the wires are damaged due to the fact that large friction force is generated between the wires and the arc-shaped frame is avoided, rolling friction can be conducted on the wires and the balls through the balls, and therefore the friction force between the wires and the balls is reduced.

The seed metering device comprises a seed metering box, a horizontally arranged transmission shaft is mounted on the seed metering box, a plurality of seed metering discs are mounted on the transmission shaft side by side, and each seed metering disc can synchronously rotate along with the transmission shaft. The seed metering device has the positive effects that the plurality of seed metering discs which are arranged side by side are arranged on the transmission shaft of the seed metering box, the seed metering push blocks which are arranged circumferentially are arranged on the periphery of each seed metering disc, and the width of each seed metering push block is smaller than that of each seed metering disc; a relatively closed space cannot be formed between the seed-metering push blocks and the seed-metering tongues, a certain distance exists between the seed-metering push blocks on the adjacent seed-metering discs, and when the seed-metering push blocks rotate to uniformly push out seeds on the seed-metering tongues, the seeds can be prevented from being extruded and damaged by the closed space, the activity and the germination rate of the seeds are ensured, and uniform seed metering is realized; therefore, high-quality seeding operation is completed.

The invention discloses a mesh bag hoisting and unloading type rice straw integrated combined harvesting device and a harvesting method, and belongs to the technical field of rice straw integrated harvesting equipment. Comprising a harvester body composed of a crawler-type walking chassis, a driving control position, a harvesting component, an inclined conveying device, a threshing component, a threshing device, a separating device, a cleaning device, a residue processing device, a straw walker, a grain elevator, an engine, a transmission system, a hydraulic system and an electrical system. A threshing component is arranged in the middle of a chassis frame on the harvester body, and a lifting and unloading type mesh bag grain storage component is arranged on the right side of the harvester body. The whole-feeding type crawler belt combine harvester technology widely used in southern rice areas at present is introduced, part of complete mechanism components are applied, the technology and the manufacturing process are mature, and the quality is reliable. A grain tank and a grain unloading barrel are removed, and a grain storage mesh bag, a grass storage mesh bag, a straw guide component and an ensiling agent adding component are added, so that the manufacturing cost is lower.

The utility model relates to the field of heat exchange equipment, in particular to a plate heat exchanger with a filtering function. The upper end of the base is fixedly connected with a fixed plate, the upper end of the base is slidably connected with a movable plate and a plurality of plate pieces, the plate pieces are arranged on the sides, close to each other, of the movable plate and the fixed plate, the synchronous pushing assembly can push the movable plate to be close to the fixed plate from multiple positions, and the plate pieces are close to one side of the fixed plate to be clamped. When the synchronous pushing assembly conducts pushing, the screw cannot stretch out, meanwhile, multiple pushing points of the synchronous pushing assembly conduct synchronous pushing, deflection is prevented and more stable when the movable plate is pushed, the limiting assembly enables the movable plate to be more stable and prevent shaking and deflection when the movable plate pushes a plate piece to be clamped, and the pushing distance of the movable plate can be checked through the positioning pushing assembly. The pushing distance can be accurately controlled through the thickness of the sheet, and extrusion damage caused by excessive pushing is prevented.

The invention relates to the technical field of medical aluminum foil processing, and particularly discloses a medical aluminum foil processing technology and cutting equipment. The bottom of the workbench is fixedly connected with a support, the inner side of the support is rotationally connected with a conveying component, the winding mechanism is arranged, an aluminum foil waste roll can be more compact, the occupied space of the aluminum foil waste roll is greatly reduced, and therefore after original loosely-wound aluminum foil waste is extruded, the aluminum foil waste can be conveyed to the conveying component. The waste materials with the same mass only need to occupy half of the original space or even less space, so that more waste materials can be wound and stored on the winding assembly, compact aluminum foil waste material rolls are more convenient to transport, the occupied transportation space is smaller no matter the waste materials are transferred in a workshop or transported to a recycling treatment point, and the transportation efficiency is improved. In this way, the transportation cost can be reduced, the compact waste roll is more stable in the transportation process, and potential safety hazards caused by shaking or loosening are reduced.

The invention discloses a welding device for a solar photovoltaic support and relates to the technical field of photovoltaic support welding, the top of a main body is fixedly connected with a top plate, and the two sides of the top of the top plate are fixedly connected with placing parts. And meanwhile, a filter screen is arranged at the top of a connecting plate, so that the welding slag entering the main body through suction force of an air suction machine is blocked, the waste gas is sucked into a connecting pipe through the filter screen, and meanwhile, through continuous work of the air suction machine, the welding slag is prevented from entering the main body. And the waste gas continuously moves in the connecting pipe, so that the waste gas enters the filtering pipe, particles in the waste gas are adsorbed through the activated carbon box, and the filtered waste gas is exhausted through the gas suction machine.

The utility model relates to the field of wind power generation, in particular to a tool for assembling a hub of an offshore wind turbine type, which comprises a supporting mechanism used for jacking up a blade hub, and a clamping mechanism used for fixing the blade hub is arranged on the upper side of the supporting mechanism. The height of the assembly table is quickly adjusted through three groups of damper sliding seats and hydraulic rods at the bottom of the assembly table, and meanwhile, the assembly table can be conveniently adjusted at a plurality of inclination angles, so that the lifted blades can be more conveniently butted and mounted; the movable seat moves to enable the two ejector rods to push the arc-shaped strip to wrap and fix the blade hub hung on the placing seat so as to avoid extrusion damage, meanwhile, the traction seat and the supporting rod support the traction belt, so that the mounting end of the hung blade can be more conveniently guided to the mounting position of the blade hub, the mounting speed is increased, and the collision condition is reduced.

The utility model relates to an active feeding type pepper picking device, belongs to the technical field of pepper picking equipment, and aims to solve the problems of low pepper picking efficiency, high labor intensity and the like. The device structurally comprises a shell, a picking system and an upper fixing plate, the picking system is arranged in the shell, the upper fixing plate is installed on the upper portion of the shell, and a rear collecting channel is connected with a collecting pipe; a spiral feeding mechanism of an active feeding device of the picking system is driven by a transmission mechanism to actively and rapidly feed Chinese prickly ash into a picking machine; the cutting device synchronously and quickly cuts and separates the Chinese prickly ash; a differential comb tooth threshing device of the picking system is driven by a transmission mechanism to thresh the cut Chinese prickly ash and bring the Chinese prickly ash into a rear collecting channel. The pepper picking machine is light, easy to operate and capable of achieving one-hand operation in the picking process, pepper can be actively and rapidly fed, pepper stem roots do not need to be accurately positioned and found, picking time is effectively shortened, picking efficiency is improved, labor intensity is reduced, and the problems of hand injury and the like are solved.

The invention discloses a liquid crystal rapid injection device for LCD production, and relates to the technical field of LCD production. The top of a box body is movably connected with a box door, the side face of the box body is fixedly connected with a transparent plate, the side face of the box body is fixedly connected with an air pressure booster pump, and the side, close to the air pressure booster pump, of the box body is fixedly connected with an atmosphere inflation pipeline; one side, close to the air pressure booster pump, of the box body is fixedly connected with a vacuum pump, and when the air pressure of an inner cavity of the box body reaches 1kgf / cm consistent with the external atmospheric pressure, the valve on the atmosphere inflation pipeline is closed, the valve on the air pressure booster pump is opened, and the air pressure booster pump is started; the air pressure in the cavity of the box body is increased to be 2-10 kgf / cm through the air pressure booster pump, at the moment, the difference between the pressure in the cavity in the box body and the pressure in the empty liquid crystal box is higher, the pressure difference is approximately equal to the pressure in the cavity in the box body, and under the higher pressure difference, the liquid crystal injection speed is greatly increased by 10%-200%.

The invention discloses a CFRP rib integral type clamping piece type anchorage device based on variable-width through seams and an installation method, and relates to the technical field of civil engineering inhaul cable structures, the integral type clamping piece type anchorage device comprises an anchor ring, and a variable-cross-section cylindrical through hole is formed in the inner side of the anchor ring; the integral clamping piece is inserted into the variable-cross-section cylindrical through hole in the anchor ring, the integral clamping piece is a variable-cross-section cylinder, the inclination angle of the outer side of the integral clamping piece is larger than that of the variable-cross-section cylindrical through hole in the anchor ring, and a cylindrical through hole used for inserting a CFRP rib is formed in the integral clamping piece. The integral clamping piece is axially provided with a variable-width through seam and an equal-width non-through seam, and the narrower end of the variable-width through seam is communicated with the cylindrical through hole. According to the invention, the problems that the CFRP rib is suddenly pulled out and cannot be standardized under the action of high stress of the integral clamping piece anchorage device for the CFRP rib are solved, and the application stability of the integral clamping piece anchorage device for the CFRP rib is improved.

The bonding device for environment-friendly paper cup production comprises a bottom plate, a supporting plate is fixedly connected to one side of the top of the bottom plate, a rotating motor is fixedly connected to the outer wall of the rear side of the supporting plate, and the output end of the rotating motor penetrates through the outer wall of the supporting plate and is fixedly connected with one end of a rotating shaft; a cup rolling column is fixedly connected to the other end of the rotating shaft, a groove is formed in the front side of the cup rolling column, a first electric telescopic rod is fixedly connected to the interior of the groove, and a top block is fixedly connected to the end of the first electric telescopic rod. The first electric telescopic rod quickly drives the ejector block to extend outwards, the bonded paper cup is ejected out, the production efficiency is improved, certain extrusion damage to the side wall of the paper cup is avoided, and the quality of the paper cup is improved.

The utility model relates to the field of positioning tools, in particular to an auxiliary positioning tool for machining parts of a display card. Two pushing blocks are arranged on the upper side of the machining table; the fixing mechanism used for clamping the workpiece is arranged on the upper side of the machining table, through pushing of the elastic attaching mechanism, a pushing block can be made to be close to be attached, the workpiece is elastically attached and clamped, the fixing and clamping effect is improved, meanwhile, elastic attaching can prevent elements such as fragile chips from being extruded and damaged, and the machining efficiency is improved. And meanwhile, the elastic attaching mechanism is more stable in attaching and fixing through the stabilizing assembly, and deflection is not prone to occurring.

The utility model relates to the technical field of automobile seat foaming, in particular to a vacuum rolling foam breaking device for automobile seat foaming, which comprises a conveyor belt and a vacuum box, a bottom support is arranged at the bottom of the conveyor belt, side plates are fixedly mounted on two sides of the vacuum box, and two electric push rods are symmetrically and fixedly mounted on the side plates. The lower end of the electric push rod is fixedly connected with the upper side of the conveyor belt lateral supporting body, a control mainboard is installed on the side wall of the vacuum box, an air inlet and a vacuum pump are arranged on the upper side of the vacuum box, and the air inlet is communicated with the interior of the vacuum box. The distance between the compression roller and the top face of the conveying belt is adjusted and controlled through the telescopic distance of the hydraulic rod, so that the automobile foaming cushion rolling device is suitable for rolling work of automobile foaming cushions with different thicknesses or sizes, and the applicability is improved; and a force transmission system between the upper trough plate and the lower trough plate has an elastic buffering effect, so that rolling damage caused by rigid rolling is avoided, and the practicability is enhanced.

The utility model provides a kind of data line simple packaging structure, including bottom plate, fixed mounting is equipped with fixed plate in its central position, first flange and second flange are equipped on fixed plate by slotting process, first flange is slotted with at least two first card holes for the data line body is connected, second flange is slotted with at least two second card holes for the data line connector is connected, left flange and right flange are oppositely provided on bottom plate along fixed plate, left flange and right flange are set on bottom plate left and right, the first end of left flange and right flange away from bottom plate is connected, two groups of clamping plate assemblies, it is oppositely set on bottom plate upper and lower ends along fixed plate, clamping plate assembly is configured to be used for the data line is positioned. This kind of data line simple packaging structure can avoid data line connector in transport jolt to be easily collided with external hard object and lead to abrasion, to avoid the effect of causing data line damage.

The invention provides a three-way water outlet nozzle of a faucet. The three-way water outlet nozzle comprises a three-way body and a switching assembly. The tee joint body comprises a water inlet butt joint end, a faucet water outlet end and an external water outlet end, and a mounting cavity is formed in the tee joint body. The switching assembly is installed in the installation cavity of the tee joint body, the water inlet butt joint end is communicated with the faucet water outlet end or the external water outlet end through the switching action of the switching assembly, and therefore water can be discharged from a faucet provided with the water outlet nozzle or discharged from a water outlet device, such as a shower head or a spray gun, connected with the external water outlet end. According to the three-way water outlet nozzle of the faucet, the switching function can be achieved at the water outlet end of the faucet, the original water outlet function of the faucet is reserved, the function of externally connecting a water outlet device is added, for example, the faucet can be connected with a shower head or a spray gun, and the faucet can be changed into a water outlet controller of the externally connecting water outlet device through switching; the problem that a shower head or a spray gun cannot be arranged after a faucet is arranged is solved, and rich water use choices are provided for a user.

The invention discloses a portable algal polysaccharide coating agent spraying all-in-one machine, and relates to the technical field of fruit tree disease control, discharging ports are symmetrically formed in the top of a machine body, a fixing plate is fixedly connected to the side face of the machine body, a transmission part is fixedly connected to the side face of the machine body, and a moving part is fixedly connected to the bottom of the machine body; according to the fruit tree spraying device, by arranging the spraying mechanism, when the spraying distance of a spraying base needs to be properly adjusted, the spraying distance of the spraying base is relatively adjusted by opening a limiting mechanism, and meanwhile fruit trees around the device body are sprayed through the spraying base; when spraying work needs to be carried out on specific positions of fruit trees in a planting area, the spraying head is taken out by lifting the handle, and due to the fact that the spraying head is connected with the inner side of the spraying base through the hose, proper spraying work can be carried out on some specific positions through the spraying head.

The utility model discloses a protection device for preventing a plasma bag from being broken, which belongs to the technical field of plasma bag protection and comprises a protection box, a protection assembly is arranged in the protection box and comprises an air bag body fixedly connected to the inner side face of the protection box, and an air bag plate is fixedly connected in the air bag body. A plurality of air bag plates are arranged in the protection box, a plurality of plasma bag placement grooves are formed by the air bag plates and the protection box, air inflation channels are formed in the air bag bodies and the air bag plates, the air inflation channels formed in the air bag bodies are communicated with the air inflation channels formed in the air bag plates, and ice bag placement grooves are formed in the air bag plates; through the cooperative use of the devices, the synergistic effect of the air bag body and the air bag plate and the multi-stage buffering mechanism of the first arc-shaped rubber buffering cushion, the second arc-shaped rubber buffering cushion and the dish-shaped rubber block, external impact and vibration can be effectively absorbed, and the possibility that the plasma bag is broken is remarkably reduced.

This utility model belongs to the technical field of transfer devices, and in particular to a seedling transfer device for agricultural planting. It includes a trailer frame with fences installed on three sides of the top, and a support fixedly connected to the front of the trailer frame. This utility model effectively solves the problems of low efficiency, easy damage to seedlings, and poor adaptability in traditional seedling transfer methods: the combined structure of the trailer frame, fences, and door panels not only achieves neat support and all-round protection for the seedlings, preventing slippage or crushing damage during transfer, but also simplifies loading and unloading operations through the quick-opening and closing design of the connecting rod and L-shaped buckle; the linkage of the double rotating shafts and leaf springs is compatible with tractors and other agricultural machinery for traction, improving the efficiency of large-scale transfer, while buffering the impact of field bumps on the seedlings and ensuring seedling vitality; the overall structure is lightweight and highly adaptable, catering to the needs of small and medium-sized growers and large-scale farms, reducing labor costs, and providing a guarantee for subsequent transplant survival rate and planting efficiency.

This utility model discloses a combined PCBA electronic circuit board, including two first mounting brackets and two second mounting brackets. The first mounting brackets and the second mounting brackets are rotatably connected. PCBA electronic circuit boards are installed between the two first mounting brackets and between the two second mounting brackets. The position of the PCBA electronic circuit boards is fixed by four positioning blocks to prevent squeezing damage to the PCBA electronic circuit boards. The two first mounting brackets and the two second mounting brackets are connected by connecting rods. The position between the two first mounting brackets and the two second mounting brackets is fixed by the connecting rods, which can improve the stability of the connection between the two first mounting brackets and the two second mounting brackets. The bending angle of the first mounting brackets and the second mounting brackets is fixed by positioning rods, which can improve the stability of the connection when the first mounting brackets and the second mounting brackets are bent.

The utility model discloses a halving top wheel, which relates to the technical field of glass production equipment, and comprises a bottom plate, a moving frame is arranged on the bottom plate, a driving component for driving the moving frame to move is arranged on the bottom plate, a top wheel component for jacking glass is arranged on the moving frame, and a supporting component for supporting the moving frame is arranged on the bottom plate. The stable height adjustment of the moving frame and the top wheel assembly is achieved through the driving assembly, so that the top wheel assembly stably makes contact with glass to achieve separation, the practicability is higher, the supporting assembly carries out supporting work on the moving frame and the top wheel assembly when not working, and therefore the top wheel assembly on the moving frame is conveniently maintained; and the halving top wheel is convenient and fast to maintain.

The present application relates to the technical field of batteries, and in particular to a battery and an electrical device. The battery includes a plurality of battery cells arranged in a certain direction, the battery cell includes an electrode assembly and a shell, the electrode assembly is placed in the shell, and the plurality of battery cells include a first battery cell and a second battery cell, the first battery cell and the second battery cell are configured so that when the number of electrical cycles of the battery is greater than or equal to 100 times, the full charge group margin of the first battery cell is less than 1, and the full charge group margin of the second battery cell is greater than 1; the full charge group margin refers to the ratio of the maximum size of the electrode assembly to the minimum size of the shell along the arrangement direction of the plurality of battery cells when the battery cell is in a fully charged state. In view of the above problems, the battery provided in the embodiment of the present application can reduce the overall external expansion force of the plurality of battery cells, prevent the battery cells from causing extrusion damage to other components of the battery, and improve the electrical connection stability and safety of the battery.

The present invention discloses a composite conductive rail splicing groove CNC milling machine and a tool, and relates to the technical field of CNC milling machines. The bottom of the base plate is fixedly connected with a base, and the top of the bracket is fixedly connected with a moving component. The present invention sets a working mechanism. When the workpiece is sprayed and cooled, excess cutting fluid will remain on the surface of the workbench. When the workpiece is subsequently disassembled, not only the surface of the workpiece but also the workbench must be blown, thereby increasing the workload of the staff. Before processing the workpiece, the limit component is adjusted so that the limit component drives the connecting plate to move downward in the clearance groove, thereby allowing the resisting component to separate from the through hole. When the workpiece is processed, the cutting fluid sprayed on the workpiece enters the inner cavity of the clearance groove through the through hole, and the cutting fluid flowing into the clearance groove flows out through the through hole, thereby preventing the cutting fluid from remaining on the workbench.

The utility model relates to the technical field of cables, and discloses a rat-bite-proof marine cable which comprises a cable body, the cable body comprises a cable core, a wrapping layer, a buffer layer, a rubber layer, a first flame-retardant layer, a second flame-retardant layer and a protective sleeve, the cable core is located in the wrapping layer, the outer surface of the wrapping layer is fixedly connected with the buffer layer, and the rubber layer is located in the protective sleeve. The outer surface of the buffer layer is fixedly connected with the rubber layer, the outer surface of the rubber layer is fixedly connected with the first flame-retardant layer, the outer surface of the first flame-retardant layer is fixedly connected with the second flame-retardant layer, and the outer surface of the second flame-retardant layer is fixedly connected with the protective layer. According to the utility model, under the action of the protective sleeve, the plurality of bumps are formed at the periphery of the cable body, so that the cable can be prevented from being bitten by rats, the cable body is prevented from being bitten, and meanwhile, under the action of the first flame-retardant layer and the second flame-retardant layer, a good fireproof effect can be achieved on the cable body, so that the service life of the cable is prolonged. Therefore, the service life of the cable body is prolonged, and the use safety of the cable body is improved.