48results about How to "Stay suspended" patented technology

The invention provides high-solubility piglet milk powder and a processing method thereof. The piglet milk powder comprises the following raw materials in parts by weight: 300-600 parts of middle fat milk powder, 100-300 parts of low-protein whey powder, 50-150 parts of lactose, 80-280 parts of fermented rice paste, 30-200 parts of soybean protein isolate, 50-150 parts of plasma protein powder, 50-150 parts of coconut oil, 20-40 parts of glucose, 0-50 parts of sucrose, 5-15 parts of lysine, 1-5 parts of methionine, 1-5 parts of threonine, 1-8 parts of tryptophan, 1-5 parts of arginine, 0.1-0.3 part of vitamin C, 0.1-0.3 part of vitamin E, 0.1-1 part of ethoxyquin, 2-5 parts of organic aid, 0.5-2 parts of feeding probiotic, 0.2-4 parts of functional oligosaccharide, 2-3 parts of vitamin premix, 2-3 parts of organic trace element premix, 0.01-1 part of alpha-amylase, 0-0.5 part of milk flavor and 1-10 parts of flaxseed gum. The milk powder solution has long stability time at normal temperature, and the phenomenon that a sinking material occurs at the bottom of a solution bottle is avoided.

The invention discloses a micropatterned hydrogel coating, its preparation method and use. The preparation method comprises the following steps: using one of carrageenan, locust bean glue, Arabic gum, xanthan gum, brown algae glue, brown algae sugar glue, xylan, agarose, mannan, galactomannans and glucomannans as a raw material to prepare a hydrogel solution first; spreading the hydrogel solution on a carrier such as a three-dimensional cell ball culture dish or a culture plate and the like; obtaining the coating with lattice patterns uniformly distributed on the surface through moulding and solidification demoulding. The micropatterned hydrogel coating may be used to produce culture products, and the culture products may enable a plurality of cells to propagate in a uniform multicellular ball way without other exogenous power so that the batch preparation of three-dimensional multicellular balls may be realized. The raw materials are easily available, quite low in cost, and natural and toxicity-free; the prepared coating belongs to a transparent nondiffusible coating; the growth of the cells in an animal body is highly simulated; and the coating has excellent stability and biological activity and is applicable to most cell culture products.

The invention belongs to an acid-resisting complex phase ceramic coating and a preparation method thereof. Firstly, 2-5 wt% of adhesive and 2-4 wt% of dispersing agent are prepared into concentrated solution, and then 25-30 wt% of water is added to prepare premixing solution; alumina, silica and silicon carbide micro powder are mixed at ratio and are added into premixing solution and the mixture is carried out ball milling for 2 hours; 0.5-1 wt% of catalyst is added for ball milling for 0.5 hour; after slurry viscosity is suitable, the slurry is brushed or sprayed by a spray gun on the surface of materials, such as cement, concrete and the like to form an even coating; and after heat treatment, Al2O3 / SO2 / SiC series anti-reversion complex phase ceramic coating is obtained. The complex phase ceramic coating not only can be applied on the surface of cement, concrete and the like, but also can be used for the anti-corrosion of metal surface. The coating surface is even and compact, has no cracks and has favorable abrasion performance and favorable acid resistant erosiveness.

The invention belongs to the field of foods, and particularly relates to a stabilizer combination. The stabilizer combination comprises a first stabilizer and a second stabilizer, wherein the first stabilizer consists of the following components, 15-60 parts by weight of first modified starch, 1-10 parts by weight of agar and 1 part by weight of gellan gum; the second stabilizer consists of secondmodified starch, high-ester pectin, optional sodium tripolyphosphate and optional sodium citrate; in the second stabilizer, the weight ratio of the second modified starch to the high-ester pectin is(1-9):1; and the first modified starch and the second modified starch are identical or different. The invention also relates to application of the stabilizer combination in beverage preparation. A granule-contained fermented milk beverage prepared from the stabilizer combination has high emulsion stability, long shelf life, relatively high viscosity and good taste evaluation, and can keep granulessuspended for a long time.

The invention relates to a universal wine fermentation tank which is characterized by comprising a tank. The tank is integrally of a conical structure and comprises a tank body, a conical upper seal head and a butterfly-shaped lower seal head, the longitudinal section of the tank body is of a big-end-down isosceles trapezoid structure, the conical upper seal head and the butterfly-shaped lower seal head are connected to the upper side and the lower side of the tank body in a transition manner, an upper man hole is formed in the upper portion of the conical upper seal head, an elliptical lowerman hole is formed in the lower portion of the tank body, a square lower man hole is formed in the butterfly-shaped lower seal head, and a blow-down valve for eliminating residual wine and wine lees is mounted at the lowermost point of the butterfly-shaped lower seal head. The universal wine fermentation tank has the advantages that fermentation processes for red wine and white wine are taken intoaccount, and accordingly the universal wine fermentation tank not only can be used for fermenting the red wine, but also can be used for fermenting the white wine; the universal wine fermentation tank can be used for multiple purposes and is high in utilization rate; conical tank designs are favorable for natural convection of fermentation liquor, circulation of the fermentation liquor can be accelerated, the temperature of the fermentation liquor is uniform, fermentation of the red wine can be accelerated, and the temperatures can be reduced for fermentation of the white wine.

The invention relates to a compound formula for supplement protein, which is mainly made from soy bean protein powder, garden stuff fiber and lecithin. The invention is made by mixing the raw materials equably according to the prescription ratio. The invention can supplement protein and can avoid ingesting excessive body fat and cholesterin while supplementing protein. The invention is suitable for the people who want to ingest protein in a healthier way besides the high-calorie protein foods, the people who can not have enough milk, meat or other high protein foods in daily diet and the people who need to supplement protein extra.

The invention discloses a hanging pruning device comprising a screw, a cutting seat and a cutting assembly, and further comprising a hanger assembly; the cutting assembly comprises two supporting blocks and a rotating shaft; each supporting block comprises an upper portion, a lower portion and a first spring; and the hanger assembly comprises a short hanger rod, a long hanger rod, a first hanger head, and a second hanger head. According to the hanging pruning device, the cutting seat is hung through a residual part and a reservation part, so that the situation that the cutting seat falls down with cut trunks after cutting can be avoided, accidental damage to a structure is avoided, and safe reliability in the operating process is improved. In addition, in the whole cutting process, separate hanging is conducted through the arrangement of the long hanger rod and the short hanger rod, stable clamping to the branches and trunks is formed, and therefore, the situation that the cutting assembly works steadily on the branches and trunks can be further achieved.

The invention provides an automatic culture box for living cells and is used for suspension culture of cells. A U-shaped support and a culture flask are arranged in a culture cavity, the culture flaskis mounted on the U-shaped support, a swing mechanism is arranged in the U-shaped support to swing the culture flask back and forth, meanwhile, a reciprocating mechanism is also arranged in the culture cavity and can drive the U-shaped support to reciprocate bilaterally, under the cooperation of the swing mechanism and the reciprocating mechanism, a culture solution in the culture flask can be stirred continuously, the adherence phenomenon of cells can be prevented, meanwhile, as stirring equipment is not required to be arranged in the culture flask, excessive cell death can be prevented, andthe survival rate of the cells can be increased.

The invention discloses a tremella bird nest composite suspension beverage and a preparation method thereof. The preparation method comprises the following steps: picking fresh tremella, shaving off roots, removing impurities, performing cleaning, selecting and cutting, placing the tremella into a mixer, cutting the selected tremella, placing the cut tremella into the mixer, melting xylitol and crystal sugar with water, adding the melted materials into the mixer, boiling red dates, decocting the red dates with slow fire to obtain red date juice, and adding the red date juice into the mixer; and boiling Chinese wolfberry fruits, decocting the Chinese wolfberry fruits with slow fire to obtain Chinese wolfberry fruit juice, adding the Chinese wolfberry fruit juice into the mixer, adjusting concentration and proper temperature, performing bottling under stirring, pressurizing and capping materials in a bottle, performing sterilization at 120-122 DEG C for 3-5min, and finally performing labeling to obtain the tremella composite suspension beverage product. The beverage is characterized in that: no suspending agent, preservative or additive is added, and the tremella has very good suspension performance, has guaranteed storage period of 18 months without deterioration, does not polymerize in the bottle, does not precipitate, keeps suspension, is rich in nutrients and has a good taste.

The invention relates to a digestion-helping potato vinegar beverage and a processing method. The processing method includes: selecting raw materials, preparing mashed potato, preparing fermentation liquid (first fermentation liquid), preparing bacillus aceticus reinforcing microspheres having photosensitive decomposition characteristics, adding bacillus aceticus fermentation liquid (second fermentation liquid), sourness-sweetness adjusting powder and agarose immobilized laccase for phenol removal, and filling. Through synergism of bacillus aceticus and aspergillus niger in a proper condition,certain unfavorable flavor ingredients in potato juice can be converted, and many aroma enhancement substances are generated, so that flavor of the potato juice is improved obviously. An obtained final product contains a lot of flavor ingredients of fermented products, so that the flavor ingredients contain acetic acid, so that the beverage is endowed with taste of the acetic acid, digestion of food is facilitated, and the beverage is suitable for most of people to drink.

The invention discloses a purifying agent suitable for sewage deodorization, a preparation method of the purifying agent suitable for the sewage deodorization and a sewage deodorization method. The purifying agent is a solid-liquid mixture, the pH value of the purifying agent is 9.5 to 10.5 and the purifying agent comprises the components of magnesium hydroxide, organic acid, a suspending agent and water, wherein the mass content of magnesium hydroxide is 10 to 80%, and the mass content of the suspending agent is 0.001 to 5%. The preparation method of the purifying agent comprises the following steps: making magnesium oxide and water hydrate in the presence of the organic acid to form magnesium hydroxide, then adding the suspending agent and a selective flocculant, and uniformly mixing. The sewage deodorization method refers to continuously putting the purifying agent disclosed by the invention to sewage. The sewage is deodorized by using the purifying agent, the pH value of the sewagecan be kept stable (the fluctuation range is less than 0.5), and the deodorizing effect is maximized. In addition, the purifying agent disclosed by the invention is safe and harmless and good in fluidity, can be directly put into use, and is convenient to use.

Circulating fluidized bed reactor especially for burning fuel, includes a combustion chamber (2) having a bed with fluidized solid particle materials therein and a solid matter cooler (3) connecting with it used for cooling the expellent ash or the solid matter (13) from the bottom of the combustion chamber (2). The cooler (3) includes: at least a turbulence chamber (4, 5, 6) used to make the to be chilled solid matter pass through in a horizontal flow, wherein the first turbulence chamber (4, 5, 6) has a inferior part (10) and a free space (11) arranged above the cooler fluidized bed (35) communicating with the gas side and the solid matter side of the corresponding turbulence chamber (4, 5, 6); an apparatus used for inputting the fluidizing agent (12) to each inferior part (10) to in order to fluidize the granular material in the turbulence chamber (4, 5, 6); at least a discharge opening (14), used for draining the fluidizing agent (12) from the free space (11) into the inferior part of the combustion chamber (2); at least an inlet port (15), connecting the first turbulence chamber (4) to the inferior part of the combustion chamber (2), used for inducting the ash (13) from the bottom vicinity of the fluidized bed firing furnace into the cooler (3); and at least a discharge opening (16), connecting with the final turbulence chamber (4, 5, 6), used for separating the solid matter grain (13) from the fluidizing agent (12) containing the solid matter grain (13) flowing in the direction of the discharge opening (14) and returning the separated solid matter (13) to the turbulence chamber (4, 5, 6).

The invention discloses a building built by virtue of an overhanging magnetic-suspension vibration isolation technique. The building comprises permanent magnets arranged at four corners of a bottom layer of the building, wherein foundation permanent magnets are arranged in a foundation corresponding to the permanent magnets and have the same magnetism with corresponding magnetic poles of the permanent magnets after being electrified; a vertical guide rail is arranged in the longitudinal center of the side wall of the building, an overhanging reinforced concrete column corresponding to the vertical guide rail is arranged on the foundation, and a spring rubber damping rolling wheel corresponding to the vertical guide rail is arranged at the end part of the overhanging reinforced concrete column; and the overhanging reinforced concrete column are connected with an intelligent circuit control circuit, the intelligent circuit control circuit is connected with a primary seismic wave receiverand a low-voltage control relay in the foundation, and the low-voltage control relay is connected to a standby power supply. According to the building, people can be isolated from the seismic threatening, and the quakeproof effect is relatively stable.

The invention discloses a loach hatching device and method. The device comprises a barrel-shaped hatching container, and a circular aeration device is installed in the barrel-shaped hatching container; the aeration device and the barrel-shaped hatching container are coaxially arranged, and the diameter of the aeration device is 1 / 3 to 3 / 5 of the diameter of the barrel-shaped hatching container; the aeration device is communicated with an air inlet pipe, and the air inlet pipe is communicated with an air inlet pump and a heater; a tap water pipe is arranged above the barrel-shaped hatching container; a water changing outlet pipe is mounted at the upper part of the barrel-shaped hatching container, and a cleaning outlet pipe is mounted at the bottom of the barrel-shaped hatching container, and a vale is mounted on the cleaning outlet pipe; and a filter cover covers the water changing outlet pipe. According to the invention, the barrel-shaped hatching container is adopted, the coaxial aeration device with a small diameter is arranged, so that the aeration device can push water in the barrel-shaped hatching container to form circulation, the water amount in the container is increased,more loach eggs can be hatched, the temperature of the internal water is easier to maintain, the suspension state of the loach eggs is maintained, and the probability of friction between the eggs andthe container wall is reduced.

The invention discloses a graphene lubricating oil for vehicles and a preparation method thereof. The graphene lubricating oil is prepared from the following components in parts by weight: 20-30 partsof modified graphene, 50-70 parts of base oil, 10-20 parts of nano ions, 4-6 parts of a dispersing agent, 14-20 parts of a viscosity improver, 10-16 parts of a preservative, 6-10 parts of an anti-foaming agent and 8-12 parts of aluminum hydroxide ceramic powder. According to the graphene lubricating oil for vehicles and the preparation method thereof, by adding the preservative, prolonging the service life of parts, adding the dispersing agent, improving the suspension stability and adding the aluminum oxide ceramic powder, the quality of an oil product is improved, and the wear resistance and the wear reduction performance of the oil product are also improved; the lubricating property of the automobile lubricating oil is greatly improved, the lubricating requirement of an automobile in acold and severe environment is met, the preparation process is simple, the prepared lubricating oil has an obvious lubricating effect, the abrasion of parts is reduced, and the automobile lubricatingoil can be used in the cold environment.

The invention discloses a tremella-fuciformis lucid-ganoderma complex suspension beverage and a preparation method thereof. The preparation method comprises the steps that after fresh tremella fuciformis is picked, roots are cut and impurities are removed, then cleaning, selecting and chopping are carried out, the processed fresh tremella fuciformis is placed in a mixing device, lucid ganoderma issubjected to superfine grinding or enzymolysis, and then put into the mixing device, xylitol and rock sugar are melted by adding water and added to the mixing device, in addition, after red dates areboiled, low fire boiling is carried out to obtain red date juice, and the red date juice is put into the mixing device; and after wolfberry fruit is boiled, low fire boiling is carried out to obtainwolfberry fruit juice, the wolfberry fruit juice is put into the mixing device, the concentration and suitable temperature are adjusted, bottling is carried out under stirring condition, pressurizingappropriately is carried out on materials in bottles, gland process is carried out, then sterilizing is carried out for 3-5 minutes at the temperature of 120-122 DEG C, and finally logos are attachedto obtain tremella-fuciformis lucid-ganoderma complex suspension beverage products. The tremella-fuciformis lucid-ganoderma complex suspension beverage has the characteristics that suspending agents,preservatives and additives are not added, the tremella-fuciformis has very good suspension performance, according to the shelf life, non-deterioration in 18 months can be guaranteed, the tremella-fuciformis does not polymerize or settle in the bottles, suspension is remained, nutrition is rich, and taste is good.

The invention discloses iron chain water vapor removing and drying equipment, which comprises a base, wherein a winding fixing block is fixedly arranged on the upper end surface of the base. According to the invention, a to-be-dried iron chain is suspended in air through an electromagnet, so that the situation that in a drying process, the iron chain makes contact with the ground so as not to effectively discharge water vapor generated in the drying process to affect the service life of the iron chain is avoided; when the weight of the iron chain changes, a sliding resistor is driven to move, the magnitude of current connected to a circuit is changed, and then the attraction of the electromagnet is automatically adjusted, so that the iron chain can be always kept in a suspended state; and whether attachments exist on the surface of the iron chain is judged by detecting the weight change of the iron chain, wherein when judging that the attachments exist on the surface of the iron chain, the attachments can be washed away through the arranged high-pressure spray heads, so that the drying result is prevented from being affected, the weight of the iron chain is prevented from being increased, and the difficulty of folding the iron chain is prevented from being increased.

The present invention discloses a white fungus composite suspension beverage and a preparation method thereof. The preparation method is as follows: fresh white fungus is picked, roots are cut and impurities are removed, then washing, fine selecting and cutting are conducted, the cut white fungus is put into a mixer, xylitol and crystal sugar are melt by adding water, the melt xylitol and crystalsugar are also added into the mixer, in addition, after red dates are boiled out, the boiled out red dates are cooked by using low heat to obtain red date juice, and the red date juice is put into themixer; after Chinese wolfberry fruits are also boiled out, the boiled out Chinese wolfberry fruits are boiled by using low heat to obtain Chinese wolfberry fruit juice, the Chinese wolfberry fruit juice is also put into the mixer, concentration and suitable temperatures are adjusted, bottling is conducted under stirring, materials in the bottle are pressurized, caps are pressed, then sterilization is conducted at 120-122 DEG C for 3-5 minutes, and finally labels are attached to obtain the white fungus composite suspension beverage. Characteristics are as follows: the white fungus composite suspension beverage is free of any suspending agent, preservatives and additives, white fungus is very good in suspension performance, the shelf life can guarantee 18 months without deterioration, the white fungus does not polymerize in the bottle, does not precipitate, and remains suspending, and the beverage is rich in nutrition and good in mouthfeel.

The invention relates to a multifunctional separation protective agent for electrostatic paint mist treatment system and a preparation method of the multifunctional separation protective agent. The multifunctional separation protective agent comprises the components in percentage by mass of 50-60% of a debonding agent, 8-20% of a polyol, 0.2-0.5% of a surfactant and 20-40% of deionized water, wherein the debonding agent is a cationic polyamine; the polyol is glycerol, and the nonionic surfactant is a branched secondary alcohol polyoxyethylene ether. The preparation method is simple to operateand high in production efficiency. The multifunctional separation protective agent is excellent in leveling property and flame retardance, safe and non-corrosive, high in conductivity and capable of effectively covering the surface of a flowing device from top to bottom, so that the paint mist is completely debonded and dispersed, and paint mist is prevented from adhering to the inner wall of thedevice and a pipeline; in the system circulation process, the broken paint mist particles are difficult to float and precipitate, and the suspension state is kept; the absorbed paint mist particles can be removed through a high-speed centrifuge, and the separation agent after the paint mist is removed can be put into the system for cyclic use again, so that cyclic utilization is realized.

A pigment dispersed resin for cathode electrophoretic paint is a cationic resin containing urea group and quaternary ammonium salt group and prepared by reaction between quaternary aminating agent and epoxy resin. Saaid quaternary aminating agent is prepared from aromatic polyisocyanate, alcohol and / or ether, and primary amine through addition and neutralizing by organic acid. Said epoxy resin is the biphenol A or F and glycide ether type one. A pigment slurry is prepared from said pigment dispersed resin, conventional pigment, catalyst and deionized water.

The invention discloses a cutting device for high tree branches. The cutting device comprises a screw rod, a cutting base, a cutting assembly and a hanging arm assembly; the cutting assembly comprises two supporting block and a rotating shaft; and the hanging arm assembly comprises a short hanging arm rod, a long hanging arm rod, a first hanging arm head, a second hanging arm head and an arc-shaped anti-slipping block, and the widths of the first hanging arm head and the second hanging arm head in the axis directions of bending portions of the first hanging arm head and the second hanging arm head are both smaller than the width of the anti-slipping block in the corresponding axial directions. By installing a spring and a first torsional spring, branch cutting work of the cutting assembly can be better achieved due to the fact that the elastic deformation of the spring and the torsional spring gives way to gear saw blades, and particularly, when the positions of a residual part and a cutting part are slightly mismatched, cutting requirements can be met by the way that external force is applied to the long hanging arm rod, and thus the long hanging arm rod rotates on a small scale relative to the second hanging arm head under the effect of the elastic deformation of the first torsional spring.

The invention discloses a device for cutting trees. The device comprises a threaded rod, a cutting base and a cutting assembly. The cutting assembly comprises two supporting blocks and a rotary shaft. The rotary shaft is sleeved with a gear saw web. The upper end of the threaded rod penetrates through the cutting base, and the tip of the upper end of the threaded rod is provided with a bevel gear located above the cutting base. The tip of one end of the rotary shaft is provided with a conical gear matched with the bevel gear. The device further comprises a hanger assembly which comprises a hanger rod and a hanger head. A containing groove is formed in the upper end of the hanger rod. The lower end of the vertical part of the hanger head is placed in the containing groove. A first torsional spring is fixedly connected in the containing groove. A sliding groove is formed in the lower end of the bent part of the hanger head. The device further comprises an anti-skid block. A sliding strip is arranged at the upper end of the anti-skid block. According to the device, when the position of a residual part and the position of a cut part are staggered slightly, external force can be applied to the hanger rod so that the hanger rod can rotate in a small range relative to the hanger head under the elastic deformation action of the first torsional spring, and thus the cutting demand is met.

A sewing machine 1 for buttoning is provided with a needle bar stroke mechanism 10 for vertically stroking a needle 5, a needle bar rock mechanism 11 for horizontally rocking the needle 5, a button feed mechanism 30 for longitudinally feeding buttons 200, a cloth feed mechanism 50 for longitudinally feeding cloth 300, a controller 150 for controlling the needle bar stroke mechanism 10, the needle bar rock mechanism 11, the button feed mechanism 30 and the cloth feed mechanism 50. The controller 150 controls the cloth feed mechanism 50 so as to make the pitch Pa in the area A and that Pc in the area C smaller than that Pb in the area B in the buttoning operation. The sewing machine for buttoning has a beautiful appearance along with higher productivity and reduces the amount of thread.

The invention discloses an aloft pruning apparatus comprising a threaded rod, a cutting base and a cutting assembly. The cutting assembly comprises two supporting blocks and a rotating shaft. The rotating shaft is sleeved with a gear saw web. The upper end of the threaded rod penetrates the cutting base, wherein a bevel gear located above the cutting base is installed on the tip of the upper end of the threaded rod. A tapered gear matched with the bevel gear is installed on the tip of one end of the rotating shaft. A hanging arm assembly comprises two hanging arm rods which have unequal lengths and are each in a reversed-J shape. Vertical parts of two hanging arm rods are both installed on the side wall of the cutting base. The aloft pruning apparatus further comprises antiskid blocks. In the aloft pruning apparatus, the hanging arm assembly is hung through the two hanging arm rods, stable clamping of branches and trunks is achieved, and therefore the cutting assembly can further stably do work for the branches and the trunks.

The invention provides a VFL water flow structure for sewage treatment. The VFL water flow structure for sewage treatment is a bent flow channel water flow structure and comprises a flow guide wall structure positioned in a sewage treatment tank, and the lower end of the flow guide wall structure is fixedly connected with the bottom of the sewage treatment tank. The flow guide wall structure divides the sewage treatment tank into an anaerobic zone, an anoxic zone and an aerobic zone which are connected in sequence, and a flow guide channel is arranged between the front end of the anaerobic zone and the front end of the aerobic zone. A sewage flow guide structure is arranged in the flow guide channel, the sewage flow guide structure comprises a plurality of first flow guide plates and second flow guide plates, which are arranged at intervals, and the first flow guide plates and the second flow guide plates divide the flow guide channel into a plurality of sequentially-communicated multi-grid areas. The lower portion of each first flow guide plate is provided with a lower penetrating channel. The lower end of each second guide plate is fixedly connected with the bottom of the sewagetreatment tank, and an upper sewage crossing channel is formed in each second guide plate. The water flow structure has the advantages of being low in cost, simple in structure, convenient to use, free of electromechanical equipment and convenient to maintain and overhaul.

The invention discloses an anti-vibration pole pruning saw. The anti-vibration pole pruning saw comprises a screw, a cutting pedestal and a cutting assembly. The cutting assembly comprises two support blocks and a rotating shaft, each support block comprises a lower part, an upper part and an elastic component, the rotating shaft is arranged on two upper parts through bearings in a rotary manner, and the head of one end of the rotating shaft is provided with a bevel gear. The anti-vibration pole pruning saw also comprises a hanging arm component, the hanging arm component comprises a hanging arm rod installed on the sidewall of the cutting pedestal and an inverted-J shaped hanging arm head, the upper end of the hanging arm rod is provided with a second accommodating groove which is concave inwards, the lower end of the vertical part of the hanging arm head is arranged in the second accommodating groove, and a first torsion spring fixedly connected with the vertical part of the hanging arm head is fixedly connected with the interior of the second accommodating groove. According to the invention, each upper part is movably connected with the corresponding lower part through one elastic component, thus, when the upper parts are under the acting force generated by a gear blade, the upper parts are pressed down, the elastic components are continuously compressed or recover from deformation, and therefore side-effect brought by vibration of the gear blade is eliminated.