144results about How to "Reduce direct impact" patented technology

This utility model discloses a filter paperboard punching mechanism, relating to the field of filter paperboard processing technology. It includes a hydraulic punching main unit, with a punching worktable on the front side of the main unit. A lower punching die is fixedly connected to the upper front end of the worktable. A hydraulic telescopic rod is fixedly connected to the upper end of the main unit via a cantilever, positioned directly above the lower punching die. Through the use of elastic heating support pads and elastic pressure pads, the loose fiber structure of the filter paperboard is effectively prevented from being compacted, ensuring the air permeability and filtration efficiency of the filter paperboard. Simultaneously, the elastic heating support pads heat the filter paperboard when in contact with it, softening the fibers and preventing brittle breakage, thus improving the quality of the punching process. Furthermore, the elastic pressure pads further reduce the direct impact of the punching blade on the paperboard, resulting in a smoother punching edge, reducing burrs and fiber damage, and improving the overall quality of the product.

The utility model relates to the technical field of valve cores, and discloses a valve core for protecting a sealing surface, which comprises a valve body, a valve core component, a first guide plate and a second guide plate. A fluid channel and a control cavity which are perpendicular to each other and communicated with each other are formed in the valve body; a water inlet and a water outlet are respectively formed in two ends of the fluid channel; the control chamber vertically penetrates through the upper part of the fluid channel and is used for mounting the valve core assembly; the valve element assembly comprises a valve seat and a valve rod. The valve seat is arranged at the intersection of the fluid channel and the control cavity in a sealed mode, and the sealing faces on the two sides of the valve seat are opposite to the water inlet and the water outlet respectively. The valve rod penetrates through the control cavity in the axial direction of the control cavity in a lifting mode, and the lower end of the valve rod extends into the fluid channel and is fixedly connected with the valve seat. When the valve rod drives the valve seat to do axial lifting motion, the sealing faces on the two sides of the valve seat synchronously form a sealing state with the water inlet and the water outlet or release the sealing state with the water inlet and the water outlet correspondingly, so that a fluid path is blocked or conducted, and the gate closing or opening function is achieved.

The application provides a battery module and a battery box. The battery module comprises a frame assembly having a receiving cavity, the frame assembly comprising a first frame extending along a second direction, and a buffer arranged in the first frame; and a cell assembly accommodated in the receiving cavity, the cell assembly comprising a plurality of cell bodies arranged at intervals along a first direction, and the cell bodies extending along the second direction; wherein the first direction and the second direction have an included angle. The application can reduce the risk of cell damage.

The application provides a computing power network system and a computing power processing method based on digital twinning, and relates to the technical field of communication.The system comprises a computing power management and control device, a computing power arrangement device, a computing network digital twinning body and a computing network infrastructure.The computing network digital twinning body is connected with the computing power management and control device, the computing power arrangement device and the computing network infrastructure respectively.The computing network digital twinning body is used for verifying and optimizing a computing power management and control scheme sent by the computing power management and control device, and outputting a computing power management and control optimization scheme.The computing network digital twinning body is also used for verifying and optimizing a computing power arrangement scheme sent by the computing power arrangement device, and outputting a computing power arrangement optimization scheme.The computing network infrastructure is used for executing at least one of the computing power management and control optimization scheme and the computing power arrangement optimization scheme sent by the computing network digital twinning body.

The application relates to the technical field of building engineering, in particular to a prefabricated reinforced concrete formwork structure for a building frame beam body column, which comprises a formwork platform, a pouring mold, a material guide frame and a material guide bin, and further comprises a supporting plate, the supporting plate is arranged on the formwork platform, and the pouring mold is supported through the supporting plate when the pouring mold is impacted by concrete, the prefabricated reinforced concrete formwork structure for the building frame beam body column has the advantage that the supporting mechanism can follow the falling position of the concrete pouring to synchronously additionally support the position of the pouring mold impacted by the falling concrete, during the concrete pouring process, especially when large-volume concrete or high-fall pouring is carried out, a large impact force is generated, additional support can effectively disperse and absorb the impact force, the direct impact on the main structure is reduced, and thus the main structure is protected from damage, and the local reinforced supporting mode can more effectively disperse and resist the impact load.

This invention belongs to the field of traditional Chinese medicine fermentation technology, specifically involving a high-enzyme-active Liu Shen Qu (a type of fermented medicinal herb) and its fermentation process. The process first processes red beans, bitter almonds, artemisia annua, cocklebur, and polygonum hydropiper into a medicinal porridge, which is then mixed with wheat flour and a specific fermenting agent to form a soft mass. Its innovation lies in the use of a Bacillus subtilis trehalose protective agent complex and Aspergillus oryzae chitosan microspheres. These two fermenting agents are prepared by spray drying encapsulation and ionogel methods, respectively, significantly improving the survival rate and stability of the fermenting microorganisms during processing and storage. The soft mass undergoes two stages of precisely controlled temperature and humidity fermentation, and finally, after shaping and segmented drying, the finished product is obtained. This process effectively solves the problems of low enzyme activity and poor stability in traditional Liu Shen Qu fermentation, resulting in a Liu Shen Qu product with high digestive enzyme activity and stable, uniform quality.

The utility model provides a riding helmet noise reduction microphone which comprises a lower shell, a wind shielding structure is arranged on the bottom face of the lower shell and comprises a first wind shielding structure and two second wind shielding structures, the first wind shielding structure is arranged on the front side of the bottom face of the lower shell, and the two second wind shielding structures are arranged on the left side and the right side of the bottom face of the lower shell respectively. The two second wind shielding structures are respectively connected with the first wind shielding structure, the bottom surface of the lower shell, the inner wall of the first wind shielding structure and the two opposite inner walls of the two second wind shielding structures are matched to form a wind shielding space, and at least one pickup hole is formed in the bottom surface of the lower shell and located in the wind shielding space; and the upper shell is mounted on the top surface of the lower shell. According to the design, most airflow is guided to the periphery, direct impact on the pickup hole is reduced, and therefore the noise reduction capacity of the pickup hole is improved.

The utility model discloses a wired earphone with an external microphone module, which is characterized in that a microphone unit is detachably connected with a mounting seat, and a blowout prevention protective sleeve is sleeved outside the microphone unit, so that the direct impact of airflow on the microphone unit can be reduced, the'spouting sound 'generated by breathing airflow can be effectively filtered, and compared with the traditional wired earphone, the wired earphone has the advantages of simple structure and convenience in use. The wired earphone provided by the utility model can keep human voice details while attenuating high-frequency noise, and is especially suitable for outdoor communication scenes.

The utility model relates to the technical field of building keels, and discloses a three-dimensional aluminum ceiling assembly type composite keel which comprises a fixing bolt, the bottom of a screw of the fixing bolt penetrates through a wall, the outer side of the fixing bolt is connected with one end of a first shaft rod, and the other end of the first shaft rod is connected with a second shaft rod. The first shaft rod and the second shaft rod are connected in a penetrating mode through the rotating axis. The mounting seat is fixed on the first shaft rod, the fixing seat is mounted on the upper surface of one group of second shaft rods, and the movement of the fixing seat is adjusted through the movement of the screw rod pushing piece. The double-locking structure that the fastening bolt piece penetrates through the adjusting groove and abuts against the surface of the keel is adopted, and it is ensured that the keel is stably fixed. The vertical load is transmitted to the wall body through the assembly locking plate, the fastening plate and the fixing bolt, the horizontal load is converted into axial force through the crossed shaft rod structure, the U-shaped cross section and the multiple assemblies act synergistically, and the overall compression resistance, bending resistance and impact resistance are greatly improved.

The utility model provides a kind of for pipeline's release device, including release pipeline, the import pipe being connected to one end of release pipeline, the export pipe being connected to the other end of release pipeline, when the export pipe is horizontally placed, the end portion of release pipeline is connected with export pipe by being inclined downward first angle, when the import pipe is horizontally placed, the end portion of release pipeline is connected with export pipe by being inclined upward second angle;The utility model improves the drainage effect between import pipe and export pipe, and can prevent silt backflow or reduce the impact of water flow on pipeline.

The application provides a multi-round reasoning network traffic prediction method and device based on size model cooperation, which comprises the following steps: inputting historical traffic data into at least two time series prediction models, obtaining prediction results and calculating comprehensive confidence based on prediction errors, and generating a prediction effect ranking; inputting historical data, prediction results and confidence into a large language model, and evaluating and ranking the prediction effect of each model by the large language model; comparing the two rankings, and if they are consistent, calibrating and optimizing the large language model, and if they are inconsistent, adopting an independent adjustment strategy to enhance the sensitivity of the prediction results of the model with the best ranking, and obtaining target prediction results. Through the two-way comparison of the independent ranking of multiple models and the evaluation ranking of the large language model, the large language model can be isolated when the rankings are inconsistent, and an independent adjustment strategy is adopted, thereby effectively avoiding the direct impact of the reasoning deviation of the large language model on the prediction results, and improving the robustness and accuracy of network traffic prediction.

The utility model relates to intelligent outdoor fire hydrant technical field, and disclose a kind of intelligent outdoor fire hydrant, including fire hydrant body, the top of fire hydrant body is fixedly connected with two groups of water outlet pipe, one end of the water outlet pipe is fixedly connected with mechanical seal component, the surface of fire hydrant body is fixedly connected with anti-collision component;Mechanical seal component includes the support ring of fixed connection in the water outlet pipe one end, one end of the support ring is fixedly connected with sealing ring, the surface of support ring is fixedly connected with two groups of pivot, the surface of pivot is rotatably connected with buckle, one side of support ring is fixedly connected with plug cover;Anti-collision component includes the heat insulation cotton of fixed connection on the surface of fire hydrant body, the surface of heat insulation cotton is sleeved with rubber cylinder.The intelligent outdoor fire hydrant, reach the situation of preventing fire hydrant from leaking, avoid water resource waste, prolong the service life of fire hydrant, reduce maintenance cost.

The utility model discloses an anti-bending screw which comprises a screw body, the inner wall of the screw body is fixedly connected with a truss mechanism, the right-angle position of the truss mechanism is fixedly connected with a slope table, a rubber pad is placed on the top of the slope table, a countersunk bolt penetrates through the top of the rubber pad, and the countersunk bolt is in threaded connection with a cross-shaped rib plate. The top of the rubber pad is fixedly connected with a truss mechanism, the truss mechanism is fixedly connected with the inner wall of the screw main body, the inner surface of the truss mechanism is fixedly connected with an anti-buckling supporting assembly, the truss mechanism comprises a vertical rod, an upper chord and a lower chord, the vertical rod is fixedly connected to the top of the rubber pad, and the upper chord is fixedly connected to one side of the vertical rod. And the other side of the upper chord member is fixedly connected with the other vertical rod. According to the utility model, local deformation and even bending damage of the screw rod under bending moment can be prevented, and external load can be prevented from being concentrated on local parts, so that the reliability when the pressure in concrete is higher is improved.

This application relates to an ecological revetment structure. This application is applicable to the field of water conservancy engineering technology. The technical problem to be solved by this application is: to provide an ecological revetment structure. The technical solution adopted in this application is: an ecological revetment structure, comprising: fish nest blocks, located on the riverbed at the toe of a slope, with a first cavity in the inner top for fish to inhabit, and at least partially connected to the first cavity via vertically arranged channels on the water-facing sidewall; multiple fish nest blocks arranged along the toe of the slope to form a supporting base for the revetment structure; ecological blocks, located on top of the fish nest blocks, with a second cavity in the inner top for filling soil, and multiple through holes in the inner bottom connecting to the second cavity; multiple ecological blocks stacked on top of each other on the slope surface; and connectors, located between adjacent fish nest blocks, adjacent ecological blocks, and between adjacent fish nest blocks and ecological blocks, enabling the fish nest blocks and ecological blocks to be horizontally adjacent or vertically stacked.

The utility model discloses a heat exchange tube structure of an organic silicon fluidized bed reactor, and relates to the technical field of fluidized bed heat exchange tubes. According to the heat exchange tube structure of the organic silicon fluidized bed reactor, heat exchange tubes are vertically arranged in the fluidized bed reactor, the end, close to the incoming material direction, of each heat exchange tube is connected with a guiding and flow dividing structure, and the outer surfaces of the lower portions of the heat exchange tubes and the outer surfaces of the flow dividing structures are coated with abrasion-resistant coatings. The guiding and distributing structure can effectively guide material flow, change the washing direction of materials and reduce direct impact of the materials on the lower portions of the heat exchange pipes. The guiding and shunting structure is beneficial to breaking large bubbles and particle agglomerates existing in the fluidized bed, so that a better fluidized structure is realized. And the wear-resistant coating plays a role in protecting the guide shunting structure and the bottom of the heat exchange tube, so that wear is reduced.

The utility model relates to the technical field of children's shoes, and provides a children's shoe with a heel elastic supporting and protecting structure, the children's shoe comprises a sole body and an upper body arranged on the sole body, the upper surface of the sole body and the inner surface of the upper body form a shoe cavity, and the upper body is provided with an extending opening communicated with the shoe cavity; a protection piece is arranged at the position, located on the heel portion, of the upper body, is an elastic low-plastic piece and comprises a first portion arranged on the heel portion, two second portions arranged on the upper portion of the first portion respectively and two third portions arranged on the lower portion of the first portion respectively. The first part, the two second parts and the two third parts enable the protection piece to be arranged in an I shape, and the upper edge of the first part is lower than the position, located at the stretching opening, of the upper body. Through the design of the I-shaped protective piece, the shoe has the advantages that the heel and the arch of a child are well protected and supported, and the child can conveniently put on and take off the shoe.

The utility model relates to the technical field of river side slopes, in particular to a flood control device for a river side slope. Comprising a vertical part and an inclined part at the upper end of the vertical part, the upper end of the inclined part inclines towards the outer side of a river channel, the vertical part and the inclined part are integrally formed to form a slope protection part, the slope protection part is hollow, the upper end of the inclined part is open, and a plurality of through holes are formed in the side, facing the river channel, of the inclined part in a rectangular array. A supporting plate is fixed to the portion, below each row of through holes, of the inclined part, and a groove and a protruding edge are arranged at the two ends of the protection slope correspondingly and correspond to each other. And the vertical part and the inclined part are integrally formed, so that the problem of weak joints of a traditional segmented structure is solved, and the overall anti-scouring capacity is enhanced. The grooves and the convex edges of the adjacent protection slopes are quickly embedded to form a continuous and compact protection surface, so that the risks of water flow permeation and local damage are reduced, and the protection structure is particularly suitable for river channels with high silt content.

The utility model relates to the technical field of greenhouse equipment, in particular to an automatic ventilation adjusting window device of a traditional Chinese medicine seedling greenhouse, which comprises a window frame, an inner sleeve window and an opening and closing component are arranged on the window frame, the opening and closing component comprises an opening and closing motor and a long shaft, the opening and closing motor drives the long shaft to rotate, and a plurality of driving levers are fixed on the long shaft. According to the automatic ventilation adjusting window device of the traditional Chinese medicinal material seedling growing greenhouse, through a worm and gear transmission mechanism, automatic locking can be achieved after a ventilation window is adjusted to a designated position by means of the self-locking characteristic of a worm and gear, automatic movement or accidental opening and closing of an inner sleeve window caused by strong wind is avoided, and the wind interference resistance is enhanced; stable and accurate opening and closing control of the ventilation window can still be realized in severe weather, and a stable greenhouse environment is provided for seedling culture of traditional Chinese medicinal materials.

The utility model belongs to the technical field, and particularly relates to an oxygen regulating valve which comprises a main body, a handle mounting hole, a manifold, a spring, a piston piece, a regulator, a clamp spring, a knob, a check valve, a filter element, a stud, a T-shaped handle and a check valve mounting hole. A flow guide cover is movably installed on the outer side of the adjuster and the outer side of the adjuster connecting block, the outer side of the flow guide cover is movably connected with the inner side of a clamping spring, a connector is installed in the main body in a threaded mode, a flow dividing cover is movably installed on the outer side of the adjuster, and the outer side of the flow dividing cover is movably connected with the inner side of the clamping spring. A sleeve is movably installed on the outer side of the main body, the flow guide cover can guide the flowing direction of oxygen in the valve body, the pressure drop loss can be reduced, the oxygen flowing stability is improved, fluid can be divided into multiple channels or directions through the flow dividing cover, direct impact of the fluid on the valve can be reduced, and the service life of the valve is prolonged. And the service life of the valve is prolonged.

The invention provides a handle fixing assembly for a tool for riding instead of walk and the tool for riding instead of walk. The handle fixing assembly comprises a support part, a tubular handle part, a pressing plate and a fixing piece, the pressing plate comprises a first end and a second end, the first end extends towards the tubular handle part and is inserted into the insertion hole, the second end of the pressing plate extends in the direction away from the tubular handle part, and the first end and the second end have a height difference; the horizontal height of the second end is smaller than that of the first end, the pressing plate is provided with a connecting area located between the first end and the second end, the supporting structure is located below the pressing plate, and the supporting structure provides a supporting face for supporting the second end; the fixing piece fixes the pressing plate and the support part through the connecting area, and the fixing piece applies connecting force which is at least downward in the height direction to the pressing plate. The problem that in the prior art, a handle fixing assembly is poor in reliability is solved.

The utility model relates to the technical field of screen structures of crushing equipment, and discloses a sieve plate for a crusher and the crusher, the sieve plate comprises an arc-shaped plate body, the arc-shaped plate body is provided with a material inlet surface and a material outlet surface, and the material outlet surface is provided with a plurality of supporting and positioning components; every two adjacent supporting and positioning assemblies are oppositely arranged in the length direction of the arc-shaped plate body, and / or every two adjacent supporting and positioning assemblies are oppositely arranged in the width direction of the arc-shaped plate body. The arc-shaped plate body is fixed and positioned through abutting and limiting of the oppositely-arranged supporting and positioning assemblies and the peripheral structure. By improving the structural design and the fixing mode of the sieve plate, the problems that the sieve plate is abraded, is not firmly fixed, is improperly assembled and the like are effectively solved, the durability, the replacement convenience and the sieving efficiency of the sieve plate are improved, meanwhile, the maintenance and cleaning processes are simplified, and a powerful guarantee is provided for stable operation and efficient production of the crusher.

An electric water heater comprises a shell and a liner arranged in the shell, at least one end of the shell is open to form a first port, a first end cover is arranged at the first port, and a first bubble blocking piece is arranged between the liner and the first end cover, the first bubble blocking piece comprises a ring seat and an elastic part, and the outer edge of the ring seat is lower than the highest outer edge of the elastic part in the radially outward direction. The technical scheme provided by the utility model has the following advantages compared with the prior art: the liner does not displace during foaming, the foaming insulation layer is uniform, the foaming material does not directly extrude the end cover to avoid deformation of the end cover, the structure is simple and ingenious, the stability is high, the mold opening cost and the material cost are low, the assembly operation is convenient, and the drainage effect is good.

The utility model discloses a headphone with a reflection sound cone, which comprises a headband and earmuff assemblies connected to two ends of the headband, each earmuff assembly comprises an earphone main body and a sounding unit, each sounding unit comprises a loudspeaker front cavity support, a woofer, a PCBA mainboard and a loudspeaker rear cavity support, the woofer is arranged between the loudspeaker front cavity support and the loudspeaker rear cavity support, and the reflection sound cone is arranged between the loudspeaker front cavity support and the loudspeaker rear cavity support. The PCBA main board is arranged on the loudspeaker rear cavity support, a reflection sound cone is arranged in the center of the inner side of the loudspeaker front cavity support, the reflection sound cone and the woofer are coaxially arranged, and the reflection sound cone extends and protrudes towards the direction of the woofer. According to the headphone with the reflection sound cone provided by the utility model, sound waves emitted from the woofer are radiated by 360 degrees in all directions through the reflection sound cone, so that the sound waves entering the auditory meatus are diffused from the center to the periphery, the direct impact of the sound waves on eardrums is reduced, and a user can listen to sound more softly.

The invention belongs to the technical field of agricultural machinery, and particularly relates to an automatic obstacle avoidance mechanism and method for a ploughing machine. The mechanism integrates a set of intelligent sensing and control system on the basis of a traditional rack, a transmission system and a ploughing part; the intelligent sensing and control system comprises a sensing module used for monitoring tillage resistance and obstacles in front in real time, a central controller used for logical judgment, and an execution module composed of a linear actuator and a lifting ground contact plate. According to the method, resistance and distance signals are collected in real time, the obstacle collision risk is intelligently judged, the execution module is controlled to rapidly lift the rack so that the tillage components can cross obstacles, and then automatic reset is conducted. According to the invention, active pre-judgment and quick response are realized, the obstacle avoidance reliability is improved through a dual sensing mechanism, the farming component and the transmission system are effectively protected, the method can adapt to different working conditions, and the farming automation level and the working efficiency are remarkably improved.

The utility model belongs to injection molding equipment technical field especially, it is a kind of buffer structure of oil cylinder, including cylinder, end cover, piston rod and piston, end cover includes front end cover and rear end cover, and front end cover and rear end cover are all provided with annular guide sleeve, and guide sleeve is inserted into cylinder and is with cylinder interference fit;Piston has the piston main body of middle part and the buffer sleeve of both ends, and buffer sleeve outer diameter with the guide sleeve inner diameter adaptation, when buffer sleeve is inserted into the guide sleeve, the end face of piston main body, guide sleeve end face and the inner wall of cylinder located between both, the outside wall of guide sleeve enclose buffer cavity, and there is buffer channel between buffer sleeve outside wall and the inside wall of guide sleeve, and buffer channel is connected with buffer cavity and oil return hole.The utility model is set with buffer sleeve in both ends of piston, makes buffer sleeve and end cover cooperate to realize buffering effect when piston moves to end part, avoids piston direct impact end cover, reduces the damage to end cover.

The invention discloses a crown cap sorting device, and relates to the field of crown cap sorting, the crown cap sorting device comprises a bottom plate, a driving motor is mounted on the bottom plate, the output end of the driving motor is connected with a transmission part, and the side, away from the driving motor, of the transmission part is connected with a rotating disc to drive the rotating disc to rotate; according to the device, the driving motor drives the transmission part and the rotating disc to continuously rotate, the crown caps uniformly slide to the outlet of the material guide channel on the panel by utilizing centrifugal force, centrifugal blanking is stable and continuous, the crown caps are uniformly stressed and regularly arranged, and hard friction and direct impact are reduced, so that the coating scratch and rusting risk is reduced, and the service life of the crown caps is prolonged. The guide wheel arranged in the material guide channel and the rotating disc rotate in the opposite direction, the crown caps clamped at the material guide channel can be rapidly thrown away, the smoothness of an outlet is improved, the auxiliary cleaning assembly can collect and discharge cleaning liquid, continuous and low-damage cap sorting and outputting of the crown caps are achieved under the condition that magnetic force or vibration intervention is not needed, and the working efficiency is improved. And the cleaning preparation of the interior of the equipment is synchronously completed.

A kind of photovoltaic power station field dust fall device, including photovoltaic module, fixed support, hydraulic machine, dust removal rod and atomizing spray head.Lifting of dust removal rod is controlled by hydraulic machine, and top spray head sprays mist to remove dust.Dust suction hole is arranged in dust removal rod, is connected with negative pressure main pipe by air suction branch pipe, realizes dust suction function;Liquid supply system is connected with main pipe by branch pipe and spray head.Limiting ring is arranged between modules, and dust removal rod is slidably connected by rail clamping on both sides, to ensure stable operation.Bottom air inlet is connected with spiral air pipe and air suction branch pipe, and liquid delivery pipe is connected with liquid supply branch pipe by spiral liquid pipe.Controller realizes intelligent control by remote communication.The device has the advantages of simple structure, flexible extension, avoiding obstruction, dust suction and atomization collaborative operation, improving dust fall efficiency and power generation stability, energy saving and high efficiency, strong applicability.

The utility model relates to an acid -resistant ball mill system, including feeding mechanism, ball mill and cylinder screen, feeding mechanism includes sand feeding device, belt feeding chute and buffer feed bin, and the outlet of sand feeding device and belt feeding chute all are connected with the bin communication of buffer feed bin, and the inner wall of sand feeding device and buffer feed bin all is provided with rubber lining, and the chute of belt feeding chute is the structure of bottom wall thick sidewall thin, the ball mill cylinder inner wall is provided with three layers of acid -resistant anticorrosive sheet, the ball mill feed inlet, ball mill discharge port and cylinder screen screen frame all are stainless steel framework and anticorrosive rubber layer integration composite and form, and anticorrosive rubber layer is sprayed in the inner surface of stainless steel framework, the utility model discloses through the overall reconstruction feeding mechanism, ball mill and cylinder screen, has improved the durability, operating stability and maintenance convenience of equipment under the acidic medium environment obviously, provides an economic, efficient, stable ball mill system for acid material.

The utility model discloses a buffering anti-collision box body corner wrapping piece and a corner wrapping assembly, the buffering anti-collision box body corner wrapping piece comprises a corner wrapping seat and a buffering seat, the corner wrapping seat comprises a corner wrapping main body and at least two corner wrapping sheets, and the corner wrapping sheets are connected to the corner wrapping main body and extend out of the corner wrapping main body; the at least two corner wrapping sheets are arranged on the corner wrapping main body at intervals, and a corner wrapping space is defined by the corner wrapping sheets and the corner wrapping main body; a first connecting part is arranged on the wrap angle main body, a second connecting part is arranged on the buffer seat, and the second connecting part is detachably connected with the first connecting part. A wrap angle assembly comprises two sets of the buffering and anti-collision box body wrap angle pieces, the first wrap angle piece comprises a first wrap angle seat and a first buffering seat, the first buffering seat of the first wrap angle piece is provided with a protruding part and two concave parts, and the second buffering seat of the second wrap angle piece is provided with two protruding parts and a concave part. And the convex part is in concave-convex fit with the concave part. The box bodies can be stacked during assembly, and direct impact of vibration on the box bodies or objects in the box bodies in the transportation process can be reduced.