369results about How to "Avoid replacement" patented technology

The invention discloses a jaw crusher rack, and belongs to the technical field of jaw crusher racks, the jaw crusher rack mainly comprises a base plate, a left side plate, a rear plate, a right side plate and a front plate, the left side plate and the right side plate are symmetrically arranged above the base plate, and the rear plate and the front plate are clamped to the two ends of the left side plate and the two ends of the right side plate respectively to form a closed rack main body; second tenons are fixedly connected to the connecting position of the left side plate and the front plate and the connecting position of the right side plate and the front plate, and second mortises are formed in the connecting positions of the front plate and the second tenons. The machine frame has the beneficial effects that vibration transmission is weakened, part abrasion and scrap iron generation are reduced, the iron impurity mixing risk is reduced, the ore sand product purity is guaranteed, the overall strength and connection stability of the machine frame are improved, stress concentration is avoided, local part replacement can be achieved through modular design, and the production cost is reduced. The whole rack does not need to be replaced, so that the maintenance cost and shutdown loss are greatly reduced.

The utility model discloses a fixing clamp for silicon carbide crystal ingot plane grinding machining, and relates to the technical field of silicon carbide crystal machining. Comprising a supporting mechanism, a rotary adjusting mechanism and a plurality of clamping mechanisms. The supporting mechanism is used for supporting and positioning the silicon carbide crystal ingot, the rotary adjusting mechanism and the clamping mechanism; the rotary adjusting mechanism comprises a rotary table, an adjusting rod and a locking arm; the clamping mechanism comprises a self-adaptive adjusting clamping jaw, the clamping jaw is connected with a first linear bearing, the bottom of the first linear bearing is connected with a rubber-coated bearing, and the rubber-coated bearing is used for converting the rotating motion of the turntable into the linear motion of the clamping mechanism on the first guide shaft; according to the utility model, the relative distance of the clamping jaws is adjusted to adapt to different crystal ingot diameters, and meanwhile, the clamping jaws have the compression force of the springs, so that the crystal ingot can be clamped more firmly, the processing safety is improved, and the product damage rate is reduced.

This invention belongs to the field of robot design technology and discloses an automatically deployed fire-fighting track inspection robot, comprising: a fire-extinguishing component, including a plurality of fire-extinguishing elements, for fire extinguishing; a gripping component, for gripping the fire-extinguishing elements and deploying them to the fire point for fire extinguishing; a track component, for supporting the gripping component and planning the movement path of the gripping component; a drive component, detachably mounted on the track component, for controlling the movement of the gripping component; and a control mechanism, including a control unit. In this invention, under the control of the control mechanism, the drive component can drive the gripping component to move along the extension direction of the track component, thereby enabling the gripping component to approach the fire-extinguishing component and the fire point. Simultaneously, under the control of the control mechanism, the gripping unit can sequentially grip at least some of the fire-extinguishing elements and control the gripping unit to deploy the gripped fire-extinguishing elements to the fire point for fire extinguishing, thereby extinguishing the fire in a timely manner.

The present application relates to a combined inner core for nuclear medicine, comprising inner core assemblies, each of which is provided with at least one aperture of a hot spot hole; the inner core assemblies can be combined at will so that the combined inner core has at least six apertures of hot spot holes. A phantom structure is also provided, comprising a barrel body, the above-mentioned combined inner core and a barrel cover. An automatic bubble-free perfusion method for the phantom structure by means of an automatic perfusion device is also provided. The combined inner core of the present application is flexible to use, and can obtain the required resolution information in a single resolution evaluation. The cumbersome process of replacing the inner core and re-perfusion is avoided. The inner core assemblies of the present application are easy to process, saving production cost and time cost. The perfusion method enables the operator to minimize the risk of possible radiation hazards.

The utility model discloses a pump body casting with a self-compensation sealing structure, which relates to the technical field of pump body castings, and comprises a pump body casting body, an annular plate is fixedly sleeved on the outer surface of the upper part of the pump body casting body, and two support rods are symmetrically and fixedly connected on the upper surface of the annular plate. The rod walls of the two supporting rods are jointly and slidably connected with a cover plate in a sleeving mode, a sealing piece is arranged between the cover plate and the annular plate, clamping grooves are formed in the two ends of the sealing piece, a rebound mechanism is arranged between the two corresponding clamping grooves, and two through holes are formed in the upper surface of the cover plate. Through the design of the first spring and the insertion block of the rebounding mechanism, when the sealing piece is thinned due to frictional wear, the spring releases elastic potential energy to push the insertion block to slide towards the interior of the clamping groove, the thickness loss of the sealing piece is automatically compensated, the sealing piece is always kept in a compressed state, the sealing piece does not need to be frequently replaced manually, and the maintenance cost is remarkably reduced.

This utility model discloses a chassis protection frame in the field of personal mobility scooter technology, including a chassis, a mounting frame on the underside of the chassis, a mounting groove on the outer side of the mounting frame, multiple sets of protective frames inside the mounting groove, two sets of positioning blocks fixedly mounted on the upper side of each set of protective frames, and two positioning grooves for mating the positioning blocks on the upper side of the mounting groove. The positioning blocks are movably inserted into the positioning grooves. Mounting holes are provided through the outer sides of the mounting frame and positioning blocks, and fixing rods are movably inserted into the inner side of the mounting holes. The outer sides of the fixing rods, located on both sides of the mounting frame, are provided with threaded surfaces, and locking nuts are threaded onto the outer sides of both sets of threaded surfaces. This utility model, through its simple installation structure, facilitates the assembly and disassembly of the protective frame, improves the ease of installation and disassembly, reduces workload, and increases work efficiency. Furthermore, it allows for easy replacement of damaged parts, effectively reducing maintenance costs and avoiding resource waste. Its practical effect is excellent and worthy of promotion and use in the current market.

The application provides a pressure regulating filter device and a circulating integrated water tank, which are used for a cleaner. The pressure regulating filter device is installed in the circulating integrated water tank and comprises a filter assembly, a pressure regulating groove and a pressure regulating assembly. The filter assembly comprises a skeleton with an open top surface. The pressure regulating groove is connected with the front wall and the rear wall of the skeleton along the longitudinal direction of the water tank. The pressure regulating assembly comprises a plurality of pressure regulating balls arranged in the pressure regulating groove. Each pressure regulating ball can move in the longitudinal direction of the pressure regulating groove at any position. The circulating integrated water tank is provided with a water tank bayonet which can make the water circulation system of the cleaner work. The circulating integrated water tank comprises a water tank body set, a water tank bayonet, a water tank cover and a pressure regulating filter device. The water tank body set is in a cylindrical shape with an open large end, a closed small end and a hollow structure. The water tank bayonet is installed on the end face of the small end of the water tank body set. The water tank cover covers the open large end of the water tank body set. The pressure regulating filter device can be pushed into the water tank body set along the bayonet groove of the water tank body to realize the mutual fixation of the two.

The utility model discloses a pressing structure of a flat plate type laminating machine, which comprises an upper box, a lower pressing frame, a pressing plate, a vibration reduction lifting mechanism and a sealing plate, the upper box is fixedly connected with the lower pressing frame through a quick clamp, and the pressing plate is mounted at the bottom of the upper box through the vibration reduction lifting mechanism; the outer side of the sealing plate is pressed between the upper pressing frame and the lower pressing frame of the upper box, and the inner side of the sealing plate extends and is fixed in the pressing plate, so that an upper cavity is formed among the upper box, the sealing plate and the pressing plate, and a lower cavity is formed among the pressing plate, the sealing plate, the lower pressing frame and the lower-layer heating plate. The pressing plate and the sealing plate are matched to replace the rubber plate, on one hand, the pressing plate is flat and high in rigidity, the whole plate can be completely attached to the plane of the assembly, all positions of the assembly are evenly stressed in the laminating process, the consistent planeness is kept, in addition, replacement of the rubber plate is avoided, and cost is reduced.

The utility model discloses an air nozzle accessory and hairdressing equipment. The tuyere accessory comprises a tuyere outer shell, a tuyere inner shell and an adjusting structure. The tuyere outer shell is provided with an air inlet end and an air outlet end which are oppositely arranged. The air nozzle inner shell is sleeved with the air nozzle outer shell and provided with a hair combing part. The adjusting structure is arranged in the tuyere inner shell in a sleeved mode and comprises an air guiding piece and an adjusting piece, the air guiding piece is movably connected to the adjusting piece and the tuyere inner shell and has a first working state and a second working state, and the adjusting piece can move relative to the tuyere inner shell so that the air guiding piece can be switched between the first working state and the second working state. The air outlet area of the air guide piece in the first working state is larger than that of the air guide piece in the second working state. According to the air nozzle accessory, the function of the air nozzle accessory is more powerful, different hair styling requirements can be better met, the number of accessories carried by a user can be reduced, frequent replacement of the air nozzle can be avoided, and the use experience of the user is better improved.

The utility model is suitable for network transformer processing technical field discloses a kind of network transformer disc dismantling device, second installation stand is uniformly had in both ends of installation platform side, two groups of second installation stand top side are between being provided with connecting crossbeam, and connecting crossbeam is set on installation platform outside upper side, and the side away from connecting crossbeam of installation platform is provided with self-made synchronous belt module, full material disc positioning mechanism is set in self-made synchronous belt module top, two groups of top side are provided with module mounting plate, and synchronous belt module is set in template mounting plate side, and installation platform top is provided with baffle material disc cylinder, two groups of second installation stand top are provided with second linear slide rail.The utility model technical scheme can realize the automatic feeding, positioning, disc changing and empty tray recycling of material tray, without manual intervention throughout, simultaneously, each actuating mechanism is controlled by control system to realize unified timing control, action is coherent without interference, degree of automation is high, improves disc dismantling efficiency.

The application discloses an energy-saving LED display screen with a reverse common cathode and a driving method thereof, and belongs to the technical field of LED display. The application aims at the problem that the single voltage power supply of the traditional common anode LED display screen leads to high power consumption and serious heat generation of the first display content LED, and adopts a reverse common cathode structure of dynamic anode voltage switching + cathode time-sharing gating: the ICND2018 row driving IC provides switchable double voltages for the common anode of the LED, outputs 2.6~2.8V low voltage when the first display content is displayed, and outputs 3.6~3.8V standard voltage when the second display content and the third display content are displayed; three pieces of ICND1065L16 channel constant current sink column driving IC are matched to independently control the three-color cathodes of the first display content, the second display content and the third display content, and precise power supply of color separation is realized. Under the premise of being fully compatible with the existing SMDTOP three-in-one common anode lamp beads, the first display content LED loop voltage difference is reduced from 1.8V to 0.8V, and the power consumption of the single first display content lamp is reduced by about 55%.

The utility model belongs to the field of electrical equipment control operation cabinets, particularly relates to an electrical equipment automatic control operation cabinet based on a PLC, and aims to solve the problems that dust and impurities fall down and are easily sucked into an operation cabinet to pollute the operation cabinet due to the fact that an existing filter screen is vibrated during replacement and disassembly. Comprising an operation cabinet body, a mounting opening is formed in the top of the operation cabinet body, a cooling fan is fixedly mounted in the mounting opening, and air inlet mechanisms are arranged on the two sides of the operation cabinet body; the air inlet mechanism comprises an air pipe, the air pipe penetrates through one side of the operation cabinet body in a sliding mode, and one end of the air pipe is fixedly connected with a back plate. Dust falling from the filter screen is prevented from being sucked into the operation cabinet body when the filter screen is replaced, the cleanliness of the interior of the operation cabinet body when the filter screen is replaced is improved, and the service life of the operation cabinet body is prolonged. And meanwhile, the limiting frame can be blocked through the anti-disassembly plate, the situation that the filter screen is replaced when the air pipe is not pulled out is prevented, and non-standard operation is avoided.

The utility model discloses an electronic sensor equipment for assembling relates to sensor assembly technical field. Include: workstation, the workstation top is equipped with processing frame, rotating part sets up at the workstation top for providing support to accessory, fixed establishment sets up at the rotating part top for fixing accessory, the fixed establishment includes support piece and clamping piece, the support piece sets up at the rotating part top for the accessory position limiting, the clamping piece sets up in support piece inside for the accessory clamping. The utility model discloses the setting of support piece and clamping piece has realized through the cooperation of supporting block, recess, sliding plate, telescopic part, adjusting rod, sliding clamp, connecting block, guide block and sliding groove, thereby in the use process to the position fixed of different size's sensor, avoids when assembling different size's sensor, needs to replace corresponding clamp, has improved the efficiency of sensor assembly.

The application relates to a mining high-voltage discharge auxiliary rock breaking tunneling device, and relates to the technical field of mine exploitation and tunneling, which comprises a cantilever. The application has the advantages that when the sliding tunneling mechanism needs to be fixed, the end thereof is extended to the inside of the cutter head assembly, the center driving mechanism drives the sliding tunneling mechanism to be collected to the center, the center driving mechanism is fixed through cooperation with the center fixing bolt, the sliding tunneling mechanism can be uniformly distributed in multiple areas outside the cutter head assembly, the high-voltage pulse of the electrode group is matched to form a net-shaped crack in the rock mass, and then the low-resistance cutting is carried out through cooperation with the sliding tunneling mechanism and the external cutting assembly and other tunneling assemblies; when one end is damaged, the center driving mechanism is loosened and rotated to drive the sliding tunneling mechanism to displace outward until the sliding tunneling mechanism is separated from the inside of the cutter head assembly, so that the sliding tunneling mechanism can be replaced and maintained, the whole cutter head assembly does not need to be replaced, and the dual effects of energy consumption reduction and efficiency improvement are realized.

The utility model relates to a batch material formula caterpillar belt shot blasting machine, including setting on the shot blasting chamber of frame, being equipped with caterpillar belt and its drive mechanism in shot blasting chamber, and caterpillar belt includes chain plate and chain, and chain plate is equipped with waste hole on, and chain plate fixedly connected on chain, and drive mechanism includes drive motor and transmission shaft, and chain and transmission shaft transmission connection, and the side of shot blasting chamber's feed inlet is equipped with winch feeding device, and the discharge port of shot blasting chamber is equipped with conveyer, the utility model discloses through winch feeding device feeding, and conveyer discharging can realize automatic feeding and discharging, and also improve the caterpillar belt structure, and greatly improve the wear resistance, so that the automatic treatment of batch material can be realized, and manual operation is not needed, and the cost is greatly saved. Moreover, the chain plate and chain of caterpillar belt are connected through bolt, the chain and driving gear are engaged, the transmission efficiency is high, does not slip, the chain plate can be separated and disassembled, does not need to replace the whole set, and the maintenance is more convenient.

This invention discloses a hysteroscopic plasma snare device, comprising an operating handle, an operating ring electrode rod, a plasma coil, a basket, and a coagulation electrode. The operating ring is fitted onto the operating handle, the electrode rod is located at one end of the operating handle, and the plasma coil is located at one end of the electrode rod. The plasma coil is controllably contracted within the electrode rod. The basket for retrieving excised tissue is located on the plasma coil, and the coagulation electrode is located at the end of the plasma coil, allowing for controlled coagulation at the tissue excision site. Advantages include: supplying physiological saline to the plasma coil at one end of the electrode rod to generate plasma for excision of the affected tissue; ease of use and preservation of the excised tissue; using the basket to hold the excised tissue for complete removal, facilitating pathological analysis; and timely coagulation at the excision site using the coagulation electrode, reducing postoperative complications and avoiding equipment changes during surgery, making it convenient and quick to use.

The embodiment of the invention provides a quartz tube spray cleaning machine which comprises a bearing platform used for receiving and bearing a horizontally placed quartz tube; the driving device is in transmission connection with the bearing platform and is used for driving the bearing platform to rotate so as to rotate the horizontally placed quartz tube into a vertical state; and the spraying device is used for spraying cleaning liquid to the quartz tube in the vertical state so as to clean the quartz tube. The spraying cleaning machine for the quartz tube can prevent the quartz tube from being broken in the cleaning process.

The utility model discloses a shaft sleeve flanging device, which relates to the technical field of shaft sleeve processing and comprises a workbench, one end of the workbench is fixedly connected with a fixing frame, the upper end of the fixing frame is provided with a first cylinder, the telescopic end of the first cylinder is fixedly connected with a mounting seat, the bottom end of the mounting seat is movably connected with a flanging punch, and the upper end of the workbench is fixedly connected with a fixing seat. The upper end of the fixing base is movably connected with an assembling base, the upper end of the assembling base is fixedly connected with a limiting cylinder, a demolding assembly is installed in the workbench, the bottom end of the assembling base is symmetrically and fixedly connected with assembling blocks, and fixing assemblies are installed in the assembling blocks. By the adoption of the structure, the shaft sleeve flanging device can adapt to shaft sleeves of different specifications, multiple purposes are achieved, the flexibility and the utilization rate of equipment are improved, new components can be replaced conveniently, the whole equipment does not need to be replaced, and therefore the maintenance cost is reduced, and the downtime is shortened.

The utility model relates to a knife sharpening technical field, and disclose an automatic knife sharpening device, including the knife rest of installation for the knife edge part of cutting knife is used to the knife sharpening assembly of grinding, the knife sharpening assembly includes the electromagnet and the knife sharpening stone of knife rest installation through the knife sharpening support, the knife sharpening stone is opposite with the knife edge part of cutting knife and is adjusted the interval of both through the electromagnet, the utility model discloses the interval of the knife sharpening stone and cutting knife is adjusted through the electromagnet, when electrifying, electromagnet core drives push rod and makes the knife sharpening stone close to the knife edge, after power off, reset under the spring action, need not stop the machine to complete grinding, can greatly shorten the knife sharpening time to improve equipment utilization and processing efficiency, and then improve actual capacity, also avoid the body injury and the dust inhalation etc. safety hidden danger brought by manual stop operation simultaneously.

The utility model discloses a 3C production anti-static carrier which comprises a bottom plate and a bearing plate, the bearing plate is arranged at the top of the bottom plate, an anti-static assembly is arranged between the bottom plate and the bearing plate and comprises anti-static rubber arranged on the outer wall of the top of the bearing plate, and conductive carbon black materials are added into the anti-static rubber. A connecting piece is fixedly installed on the outer wall of one side of the bottom plate, a wire is arranged on the outer wall of one side of the connecting piece, a metal wire in the wire is fixedly connected with the connecting piece, and a connecting assembly is installed between the bottom plate and the bearing plate and comprises two limiting sliding grooves formed in the bottom plate. According to the anti-static carrier, the anti-static assembly is arranged, so that the probability that static electricity is generated between a product and the carrier can be reduced, meanwhile, the generated static electricity can be conducted to the outside in time, and the static electricity is effectively prevented from influencing the product.

This utility model discloses a demineralized water device that facilitates production and reduces operating costs. It includes a raw water booster pump, the outlet of which is connected to the inlet of a high-level water tank via a first hand valve. The outlet of the high-level water tank is connected to the inlet of a reverse osmosis unit via a level interlock control valve. The outlet of the raw water booster pump is also connected to the inlet of a filter via a second hand valve. The device also includes a demineralized water tank, the outlet of which is connected to the inlet of the raw water booster pump via a return water pipe. The outlet of the demineralized water tank is also connected to a demineralized water usage point via a third hand valve. Furthermore, it includes a raw water inlet tank, the outlet of which is connected to the inlet of the raw water booster pump via a fourth hand valve. In cases where the device is not in operation for extended periods, the demineralized water in the demineralized water tank is transported to the high-level water tank via the return water pipe and the raw water booster pump, further achieving internal circulation of the demineralized water and ensuring the wetting of the reverse osmosis membrane.

The invention discloses a TEMPO-CNT composite membrane based on layer-by-layer assembly, a preparation method and application, and belongs to the technical field of preparation of electrochemical wastewater treatment materials. According to the composite membrane, a layer-by-layer assembly process is adopted, a carbon-based conductive adsorption layer and a TEMPO catalytic function layer are sequentially constructed on a substrate layer, and an ordered layered structure is formed. According to the structure, the high specific surface area and conductivity of the carbon material are fully reserved, TEMPO active sites are uniformly exposed, and efficient cooperation of pollutant adsorption and electrocatalytic degradation is achieved. The composite membrane prepared by the invention can be adapted to various electrochemical systems such as direct current and alternating current (pulse), trace organic pollutants in wastewater can be efficiently removed with low energy consumption by applying corresponding voltage, and the composite membrane has the advantages of flexible operation, wide application scene, good environmental compatibility and the like.

This utility model discloses a massage head mounting structure for a massager. The massager includes a battery and a motor inside, with the battery supplying power to the motor. An eccentric block is mounted on the motor shaft. The massager also has a massage base, which is hollow inside, with the eccentric block positioned within it. The massage head mounting structure is used to fix the massage head onto the massage base and includes at least one mounting seat fixed to the outer wall of the massage base; and a connecting block fixed to one side of the massage head. The connecting block and the mounting seat are detachably connected. This utility model, by providing a mounting seat on the outer wall of the massage base and a connecting block on the massage head, with the connecting block screwed into a slot on the mounting seat, allows for easy replacement of the massage head when it needs to be replaced. This is because the screws securing the connecting block are simply unscrewed, allowing the massage head to be removed and replaced with a new or other functional massage head. Replacement is convenient and cost-effective, eliminating the need to replace the entire massage base.

The invention discloses a multifunctional PLC expansion device based on an FPGA and a configuration method thereof.The device comprises the FPGA, the FPGA comprises a communication module, a function configuration module, a pulse output module, a serial port module, a pulse counting module and an IO control module, the communication module is used for receiving a configuration instruction, and the function configuration module is used for receiving the configuration instruction; the function configuration module is respectively connected with the communication module, the pulse output module, the serial port module and the pulse counting module, and is used for selectively activating any one of the pulse output module, the serial port module or the pulse counting module according to the configuration instruction; and the IO control module is respectively connected with the pulse output module, the serial port module and the pulse counting module for function output.

The utility model discloses a semiconductor equipment sampling device, which relates to the technical field of semiconductor processing, and comprises a driving mechanism, a buffer mechanism and at least two suction heads, the buffer mechanism comprises at least two elastic expansion pieces; the elastic expansion pieces are connected with the suction heads in a one-to-one correspondence manner, so that the suction heads can elastically move; the driving mechanism is connected with the elastic expansion pieces and used for driving the elastic expansion pieces to move close to each other or away from each other. According to the design, by optimizing the buffering effect and the adsorption stability, the sample rejection rate is reduced, and the semiconductor manufacturing yield is increased; and the continuity and the efficiency of the production process can be improved by adopting the universal design and reducing the remodeling operation.

The invention discloses a pet water dispenser main machine integrating control and a water pump, and the pet water dispenser main machine comprises a main machine shell, an upper cover, a bottom cover, a water outlet nozzle, a main control PCB, a living body sensor, a water pump rotor, a rotor driving device and an upper volute. Wires and water pipes are not arranged outside, water and electricity separation is achieved, the risk of electric leakage is avoided, the sealing performance is good, and waterproof glue is poured into the whole inner cavity of the host shell. In addition, the water pump rotor, the upper volute and the rotor sleeve of the water pump rotor can form an integral rotor module, the rotor module and the main machine shell can be integrally installed and disassembled, replacement is convenient, and the assembling efficiency is improved.

The invention relates to the field of hydraulic punching and hole forming, in particular to a hole expanding and hole forming drilling tool based on hydraulic reversing and a construction method.The drilling tool comprises an upper connector, a transition sleeve, a lower shell and a lower connector, the upper connector is provided with a hole forming nozzle and a connector overflowing hole, and when the upper connector is sleeved with a sliding sleeve, the hole forming nozzle is shielded in the sliding sleeve; when the sliding sleeve is located at the second position, the hole making nozzle is exposed outside the sliding sleeve; a reversing assembly is arranged in the lower shell and comprises a valve disc rotating relative to the lower shell in the circumferential direction, a valve disc through hole is formed in the valve disc in the axial direction, when the valve disc rotates to a third position, the valve disc through hole is communicated with the through hole in the lower connector through the lower shell, and the sliding sleeve is located at the first position. When the valve disc rotates to a fourth position, the valve disc through hole is not communicated with the through hole in the lower connector, and the sliding sleeve is located at a second position. Mode switching is completed by controlling starting and stopping of water flow, drilling construction in a large-flow state can be achieved, and a drill rod of a special structure does not need to be replaced.

The utility model relates to the technical field of water washing pool branching, in particular to a water washing pool branching device with a detachable and replaceable function, which comprises a marble slab, a U-shaped groove is arranged on the upper side surface of the marble slab, a U-shaped groove split wear-resistant block is embedded in the U-shaped groove, the front side surface and the rear side surface of the U-shaped groove split wear-resistant block both extend out of the U-shaped groove, and the U-shaped groove split wear-resistant block is embedded in the marble slab. Lug plates are fixedly connected to the surfaces of the left side and the right side of the U-shaped groove split wear-resisting block correspondingly. The size of an inner core of the U-shaped groove split wear-resisting block is consistent with the size of the distance between originally-designed marble tooth-shaped strip blocks. By means of the independent design of the U-shaped groove split abrasion-resistant blocks, the problem that the whole marble slab needs to be replaced when a U-shaped groove in a traditional structure is abraded can be solved, the replacement cost caused by abrasion every year is reduced to a great extent, and therefore the production cost is reduced; and due to the design of the lug plates, the U-shaped groove split wear-resistant block is relatively stable in the use process and does not incline.