148results about How to "Meet support requirements" patented technology

The invention discloses a preparation method of biological active glass / chitosan composite porous support material, which adopts a perfusion method to compound chitosan and sol-gel biological glass porous support material prepared by a foam impregnation method. The invention comprises the steps of preparing pure biological active glass support material through the foam impregnation method, preparing chitosan solution and compounding biological active glass / chitosan composite support through the perfusion method, wherein the preparation of pure biological active glass support material through the foam impregnation method comprises preparation of size of the biological active glass, selection, impregnation and desiccation of polyurethane foam template.. During the preparation process of theinvention, shape, porosity and distribution of aperture are easy to be regulated and controlled. The prepared support material is provided with three-dimensional reticulate backbone structure, and themechanical intensity, biocompatibility and bioactivity thereof are excellent and degradable; the pressure strength thereof can achieve 1.15-1.30 MPa; apparent porosity can achieve 70%-80%. The support material is capable of meeting the requirements of providing support for defective parts of tissue. The invention has simple and practical method, thus being easy for large-scale production.

The invention discloses an ultra-light flexible crystalline silicon solar cell module and a preparation method thereof. The ultra-light flexible crystalline silicon solar cell module comprises a front film, a solar cell, a support material, packaging adhesives and a rear film, wherein the front film, the packaging adhesive, the solar cell, the packaging adhesive, the support material and the rear film are sequentially arranged and are molded in a vacuum hot-pressing manner. The preparation method comprises the following steps: sequentially laminating the front film, the packaging adhesive, the solar cell, the packaging adhesive, the support material and the rear film from top to bottom; and carrying out a solidification under the vacuum conditions that the temperature is 100-150 DEG C and the pressure is 15Kpa to 30Kpa for 30-60 minutes, so as to obtain the ultra-light flexible crystalline silicon solar cell module. The ultra-light flexible crystalline silicon solar cell module disclosed by the invention has the advantages of high generating efficiency, flexibility, light weight and the like; the preparation method disclosed by the invention is integral molding; and the process is simple.

The invention relates to a ring crane corbel for a nuclear power station and a manufacturing method thereof, belonging to the technical field of building construction facilities. In the ring crane corbel, a box-type frame main body comprises a rectangular main body plate, wherein an upper cover plate and a lower cover plate are respectively soldered and fixed on one side of the main body plate; a left lateral plate, a right lateral plate and a middle stiffened plate are soldered between the upper cover plate and the lower cover plate; the left lateral plate, the right lateral plate and the middle stiffened plate are soldered with the main body plate; the two ends of one side of the lower cover plate are soldered with the two bottom edges of an external baffle; the upper part of the external baffle extends between the left lateral plate and the right lateral plate after the upper part of the external baffle is bent; the two lateral edges of the upper part of the external baffle are respectively soldered with the inner surfaces of the left lateral plate and the right lateral plate; the other side of the main body plate is soldered with a bent bar; and horizontal and vertical stiffened plates are respectively soldered on corresponding positions on the main body plate, which are soldered with the upper cover plate, the lower cover plate, the left lateral plate, the right lateral plate and the middle stiffened plate. After the ring crane corbel is adopted, the use requirement can be met, and reasonable assembly and soldering sequence are adopted, so the final quality of the ring crane corbel component can be ensured.

The invention provides a digging and anchoring integrated six-arm digging and anchoring machine, comprising a heading machine and an anchor rod machine which are connected; the anchor rod machine comprises top anchor units, an side anchor unit and a working platform unit; the heading machine comprises a rack body, a walking part, a cutting part, a rotary body, a rear supporting body, a loading mechanism, a conveyor, an electric control system, a hydraulic system, a spraying system and a cooling system; the number of the top anchor units is two; the two top anchor units are symmetrically arranged on the left side and the right side of the rack body, and are located behind the rotation center of the rotary body and each set of top anchor unit is provided with two top anchor drilling machines; the side anchor unit is movably arranged on the rack body and located behind the cutting part, and is provided with two side anchor drilling machines, and the working platform unit is connected withthe cutting part and located above the cutting part. The empty jacking and side anchor time is reduced, the safety of workers is guaranteed, and the mechanical automation degree is improved.

The invention belongs to the field of assembled buildings and in particular relates to an assembled building buttress stabilizing device. A vertical plate is slidably mounted on the inner wall of oneside of an upper chamber of a lifting block, a driving assembly is in transmission connection to a rack on one side of the vertical plate, a cavity is formed in an adjusting block on one side of the vertical plate, two screws which are symmetrically arranged are rotatably mounted on the inner walls of two sides of the cavity, a same threaded block is in threaded connection to the outer sides of the two screws located on the same side, a same transmission assembly is in transmission connection to the ends, close to each other, of the four screws, transverse plates are fixedly mounted on the sides, far away from each other, of the two threaded blocks, the sides, far away from each other, of the two transverse plates penetrate the inner walls of two sides of the cavity separately and extend to two sides of the adjusting block separately, supporting blocks are fixedly mounted on one sides of the two transverse plates, and clamping plates are slidably mounted on the inner walls of two sidesof two supporting slots. The assembled building buttress stabilizing device solves the problem that the mounting precision is affected and construction operation is not facilitated as an existing spliced module wall prefabricated member swings in a splicing process.

The invention relates to an automobile bumper production process, which comprises the following steps in sequence: selected raw materials, baking materials, injection molding by precision injection molding machines, plastic parts trimming, upper part spraying, deep cleaning, drying, primer spraying, high-temperature baking Drying, spraying, high-temperature drying, part inspection, post-processing, accessory assembly, product packaging, the temperature of the injection molding machine: raw material drying temperature 80-100 ℃, barrel temperature 200-250 ℃, hot runner temperature 230-240 ℃, mold surface temperature 20~30℃, screw speed 40~70 rpm, raw material injection speed 37~43, 27~32, 22~27mm / s, injection time 7~15sec, injection pressure 430~460, 260~ 290, 80~110bar, cooling time 20~35sec. The automobile bumper production process of the present invention has high firmness and impact resistance of injection molded parts, can control the defect types of injection molded parts to the greatest extent, and improves the qualified rate of paint spraying in the next process; the paint has strong adsorption and meets domestic requirements. All kinds of high-end cars supporting the requirements.

The invention relates to the technical field of mining, in particular to a timbering and pressure relief structure and method for a rock burst tunnel. The timbering and pressure relief structure comprises a timbering structure and a pressure relief structure, wherein the timbering structure comprises an anchor rod and an anchor cable; the anchor rod is inserted in surrounding rock from the inner wall of the rock burst tunnel; the anchor cable is inserted in the surrounding rock from the inner wall of the rock burst tunnel; the anchor rod and the anchor cable are alternately arranged at intervals; the pressure relief structure comprises a pressure relief drilled hole and a detonating piece; the pressure relief drilled hole is formed in the surrounding rock from the inner wall of the rock burst tunnel; and the detonating piece is positioned at the tail end of the pressure relief drilled hole. An anchor rod timbering body is formed in the surrounding rock of the rock burst tunnel in an erection manner, when rock burst occurs, the anchor rod timbering body and the anchor cable timbering body jointly form a composite anti-impact body, under the effect of impact load of the rock burst, the anchor rod and the anchor cable cooperatively absorb energy to relieve impact, energy generated by the rock burst can be absorbed effectively, impact damage to the tunnel by the rock burst is prevented, and the anti-impact performance of the rock burst tunnel is improved.

The invention belongs to the technical field of material drying, and relates to an energy-saving method for sizing and drying soft capsules. The method comprises the following steps of: combining a sizing and drying system device; after evacuating each heat pump cycle in an inner and outer combined type heat pump circulating subsystem, filling heat pump circulating working media respectively; setting the air supply temperature and dew-point temperature in a central control subsystem; starting a major circulating fan and a temperature regulating and humidity regulating circulating fan, and starting each compressor, so that the air supply temperature and dew-point temperature reach set values to realize stable operation; placing the soft capsules to be dried on a multi-layer meshed soft capsule tray of a middle sizing drying chamber in constant thickness, drying for 6 to 8 hours, taking the dried soft capsules out, and drying the soft capsules in the next batch; and circulating in a reciprocating mode to realize continuous production. According to the method, the device system is simple in structure, low in running cost, good in energy-saving effect, large in treatment batch, high in production efficiency, small in floor space and wide in application range.

The invention discloses a vehicle universal joint outer star wheel. The vehicle universal joint outer star wheel comprises a hollow cylindrical body; outer inclined ball ways are arranged on the innersurface of the hollow cylindrical body, and are uniformly distributed on the inner surface of the hollow cylindrical body in the peripheral direction; two adjacent outer inclined ball ways are arranged in an axial symmetry mode; and the hollow cylindrical body is forged as an overall structure. A warm and cold combined forging method is adopted; the warm forging is firstly performed; and then, acold refining mold is used for cold forging to replace cutting, so that the production efficiency is high, the cost is low, the period is short, a metal production line is not cut off, the internal structure density is high, the inner cavity strength is high, the impact is resisted, raw materials are saved, and the vehicle part mating production requirements can be met.

The invention provides a hydraulic support platform stand column oil cylinder system controlled by a proportional servo valve and a pressure control method, and belongs to the technical field of valvecontrol hydraulic cylinder pressure control. An asynchronous motor is connected with a quantitative pump; a filter, the quantitative and the proportional servo valve are connected in sequence; the proportional servo valve is sequentially connected with a hydraulic lock and a stand column oil cylinder; the input end of the quantitative pump is separately connected with an oil tank through the filter, and the output end of the quantitative pump is connected with one port of the proportional servo valve; a proportional overflow valve is connected between a second port and a fourth port of the proportional servo valve; under the action of the quantitative pump, hydraulic oil outputs a certain flow of high pressure oil through the filter to control the stand column oil cylinder; the magnitude,adjusted by the proportional servo valve, of the flow of the hydraulic oil is changed, and the pressure of the stand column oil cylinder is controlled; and finally, low pressure oil of an oil outletof the stand column oil cylinder flows back into the oil tank under the guide of the proportional servo valve. The hydraulic support platform stand column oil cylinder system controlled by the proportional servo valve has the beneficial effects that the setting load of a roof of a temporary support of a fully-mechanized excavating roadway in a coal mine is precisely controlled, the negative influence of uncertain factors in the system on control performance is restrained, and the system has high robustness.

The invention relates to a support method for an extra-thick broken coal seam employing nest anchored ropes. The invention assists in solving a problem of lack of the support reinforcing method for an extra-thick broken coal seam tunnel. According to the invention, integrated combined support of anchor poles, nest anchored ropes, W steel bands and metal meshes is realized by utilizing preferable support parameters and adopting nest anchored ropes which are specially designed; a deformation degree of the super high breaking coal seam tunnel is substantially reduced; requirements for super high breaking coal seam roadway support are satisfied; safety of the super high breaking coal seam roadway is ensured; and production is guaranteed.

The invention provides a three-dimensional heat-insulating reinforced concrete liner for mines. The three-dimensional heat-insulating reinforced concrete liner consists of two parts of a three-dimensional reinforced mesh casing bracket and a heat insulating support concrete spraying layer, wherein the three-dimensional reinforced mesh casing bracket is a full-closed three-center arch which is spliced from several mesh casing structural members and is fixed on the surface of country rock, so that an external support framework is formed, ground pressure is jointly withstood by the external support framework and a rock consolidation ring; heat insulating support concrete is formed by mixing haydite, vitrified micro bubbles, polypropylene fibers and common concrete, and is packed in the mesh casing bracket. The vitrified micro bubbles and haydite form a porous structure in the concrete, so that the coefficient of thermal conductivity is effectively reduced, and concrete has a good heat-insulating effect; the heat insulating concrete is sprayed and coated to a three-dimensional reinforced mesh casing, the concrete is packaged in numerous small-span bidirectional reinforcing bar arch casings, pulling and shearing stress borne by the spraying layer is obviously reduced, and the compressive strength is fully utilized, so that the requirement for the heat insulating support of tunnels can be well met, the healthy body and mind of staff working underground can be guaranteed, and the working efficiency in the underground mines is improved.

The invention provides a movable argon arc welding machine cooling platform. The movable argon arc welding machine cooling platform comprises a cart type structure, a cooling water tank, a supporting bracket of the cooling water tank, a cooling water booster pump and a prefilter. The filter and the booster pump are connected through a valve and a water pipe. A manual water adding opening, a tap water adding opening, a cooling water outlet, a backflow water pipe inlet and a drain opening are formed in the tank body of a water storage tank. Cooling water in the water tank passes through the filter and then is pressurized by the booster pump, and then the cooling water is connected with a cooling water inlet in an argon arc welding handle; the cooling water is input to an argon arc welding machine via a water-cooling cable through a welding handle cooling water outlet, a high-temperature water outlet is connected to a cooling water return connector on the cooling platform through the cooling water outlet of the argon arc welding machine, and then the cooling water is cooled by a radiator and flows back into the water storage tank. The platform can be provided with the welding machine to be moved for use, the operating cost is low, operation is convenient, and the cooling platform can be used by a plurality of argon arc welding machines at the same time; the cooling water is recycled, so that water resources are saved, and energy consumption is lowered.

The invention relates to a civil defense cavern, in particular to a civil defense cavern with the functions of absorbing energy, preventing water and resisting pressure. The civil defense cavern comprises a cavern, wherein the inner wall of a cavern rock-soil layer is lined orderly with an energy-absorbing waterproof filling material layer and a reinforced concrete lining piece; the energy-absorbing waterproof filling material layer and the reinforced concrete lining piece are anchored to the inner wall of the rock-soil layer by a plurality of anchor rods. The invention has the advantages that: the civil defense cavern has the effects of absorbing energy once, paring force twice, releasing pressure and transloading, which can reduce the energy acting on a cavern lining structure to the utmost extent, so as to maintain the stability of the cavern in wartime; and the civil defense cavern has the functions of dynamically loading, paring force, releasing pressure and transloading stress under the action of great explosion impact and dynamic load, so as to maintain the cavern in good conditions.

The invention discloses a wireless communication small card embedding device and a manufacturing method thereof in the technical field of mobile communication. The device comprises a small card stacking mechanism, a blanking mechanism, a transmission mechanism, an embedding mechanism, a material receipt mechanism and a card support, wherein the small card stacking mechanism, the embedding mechanism and the material receipt mechanism are connected in series in turn; the blanking mechanism is positioned on the lower part of the small card stacking mechanism and is connected with the small card stacking mechanism; the transmission mechanism is connected with the blanking mechanism, the embedding mechanism and the material receipt mechanism respectively; and the card support is positioned at a combined position of the transmission mechanism and the embedding mechanism and is used for embedding a small subscriber identity module (SIM) card. Characteristics of original equipment are not influenced at all, and a standard integrated circuit (IC) intelligent card can be produced according to an original production process through reasonable process configuration. Flexible switching can be performed between the standard card production process and the small SIM card production process by the device, so that the utilization rate of polyvinyl chloride (PVC) materials is improved by 5 to 10 times under the condition that the equipment is not modified on a large scale.

A non-active assembled multifunctional thimble device is realized by arranging 32 thimble units on a base (2) which is an integrated board. The thimble units are detachably arrayed on the base (2) by a base connecting block (19). The base (2) can be in the shape of strips, one or more thimble units is / are arranged on each strip-shaped base (2), and two or more strip-shaped bases (2) are jointed to form an overall structure. The invention adopts a mode of assembling a plurality of thimble units on a base, which can satisfy supporting requirements for printed circuit boards in different sizes to realize general propose. With the combination of rack rod and gear, structure of braking block, and arrangement of spring below the rack rod, requirement for elements with different sizes can be satisfied. By adopting such a structure that one end of a connecting shaft is a ridge-shaped protrusion and the other end is a blind hole with shape and size joggled with the ridge-shaped protrusion, series connection of two adjacent thimble units can be easily realized.

The invention discloses an offline configuration resource information fusion method for an intelligent substation. The method comprises the following steps of: 1) layering and classifying offline configuration resource information of the intelligent substation; 2) determining an offline configuration resource customization rule and an information fusion rule; 3) generating novel offline configuration resources according to the offline configuration resource customization rule, and generating an information content list according to the information fusion rule; and 4) transmitting the novel offline configuration resources and the information content list to the substation and dispatchers. The offline configuration resources are automatically customized and the information transmitted to a master station is fused according to the configuration rule, the workloads of manually selecting the offline configuration resources and performing the information fusion are reduced, the interaction capacity between systems is improved, and the functional requirements on source-end maintenance of the intelligent substation are met.

The invention discloses a corbel diagonal bracing type pipeline hanger which comprises a corbel, wherein one end of the corbel is fixedly mounted on a vertical wall; a diagonal bracing frame is arranged between the free end of the corbel and the vertical wall; pipe clips are arranged at intervals at the upper side or the lower side of the corbel, which is backed onto the diagonal bracing frame; the corbel comprises at least one C-shaped steel channel, and fixed mounting structures are arranged between the pipe clips and the C-shaped steel channels; each fixed mounting structure comprises a screw, an internal screw thread connecting base arranged on the corresponding pipe clip, and a spring nut positioned in the corresponding C-shaped steel channel; both ends of each screw are respectively connected with the corresponding internal screw thread connecting base and the corresponding spring nut; tightening nuts and base plates, which are used for clamping and fixing the spring nuts in the C-shaped steel channels are arranged on the screws. The corbel diagonal bracing type pipeline hanger disclosed by the invention can meet the requirements for stability, strength and rigidity of a pipeline.

The invention relates to a pipe dredging robot based on a wall supporting linkage mechanism and a use method thereof. The robot comprises a dredging cylinder, a telescopic cylinder, a front mounting disk assembly, a rear mounting disk assembly, a wall supporting rod assembly and a walking assembly. The front mounting disk assembly and the rear mounting disk assembly both comprise a connecting rodhinge seat and a drive cylinder hinge seat, and the front mounting disk assembly further comprises a front mounting disk; The rear mounting disk assembly further includes a rear mounting disk; The dredging cylinder is arranged at the bottom position between the front mounting plate and the rear mounting plate. The dredging cylinder is arranged at the bottom position between the front mounting plate and the rear mounting plate. The front mounting plate and the rear mounting plate are both provided with a brace rod assembly at the same position; A support rod assembly further include a lower support wall cylinder dispose on an outer plate body of that swing wheel. It has the advantages of reasonable structure design, convenient operation and use, low maintenance cost, high degree of automation and intellectualization, and realizes the adjustment function of the largest external size of the robot through the contraction and deployment of the wall-supporting linkage mechanism, which not only meets the size requirements of entering and leaving the inspection well, but also meets the support requirements of the dredging operation.

The invention provides a building formwork quick-release supporting system. The building formwork quick-release supporting system comprises a plurality of formwork components, wherein each formwork component comprises a supporting rod assembly, supporting head assemblies, keels, flat plates, corner connecting pieces and fasteners; the bottom of the supporting rod assembly is fixed to the ground; the supporting head assemblies are adjustably mounted at the top of the supporting rod assembly; the keels are erected between the adjacent supporting head assemblies; the flat plates are tightly laidand erected between the adjacent keels; a closed supporting plane is formed by laying the multiple flat plates; and all the formwork components except the supporting rod assemblies are made of polymercomposite plastic. According to the building formwork quick-release supporting system, the weight of each plate is reduced, and thus mounting construction is easier; and the supporting assemblies andall the components for assembling formworks are concise in design, easy to mount and dismount, high in operability and high in effect, the labor cost is reduced, and the construction cost is reduced.

The invention discloses supporting protective equipment for foundation pit engineering and an application method thereof. The supporting protective equipment for foundation pit engineering comprises abase and a pillar fixedly mounted in the middle of the upper end face of the base, as well as four support plates, namely a first support plate, a second support plate, a third support plate and a fourth support plate; first support mechanisms in two groups are fixedly mounted between the first support plate and the pillar; a first hydraulic cylinder is arranged between the two groups of first support mechanisms; second support mechanisms in two groups are fixedly mounted between the second support and the pillar; a second hydraulic cylinder is arranged between the two second support mechanisms; third support mechanisms are fixedly mounted between the third support plate and the pillar; fourth support mechanisms are fixedly mounted between the fourth support plate and the pillar. The supporting protective equipment for foundation pit engineering is novel in structural design and convenient to use, can provide supporting of high intensity for the wall of a foundation pit, has mechanical properties fully meeting the supporting requirements of the foundation pot, and has higher safety.

The invention discloses a lightweight moisture-preserving heat-insulating tundish cover castable and a preparation method thereof. The additive comprises the following components in parts by mass: 30-60 parts of naturally sintered mullite, 5-20 parts of semi-heavy mullite, 5-20 parts of light mullite balls, 5-20 parts of mullite microspheres, 5-20 parts of andalusite, 2-8 parts of calcium aluminate cement, 2-8 parts of aluminum oxide micro-powder, 3-6 parts of silicon micro-powder and 0.5-3 parts of stainless steel fibers. The lightweight material configuration obviously enhances the thermal insulation property of the castable, can effectively lower the surface temperature of the tundish cover, and reduces the deformation of the steel shell and the related safety risks caused by the deformation.

The invention discloses a cold finishing die for a car universal joint besides-star wheel. A terrace die includes an upper template, a fixing component, a stand column and a punch. The stand column isfixed on the upper template through the fixing component, the stand column is in a conical shape, the top of the stand column is in the conical contraction form, and the wall of the stand column is uniformly provided with six assembly grooves. The punch is composed of six die valves with convex bodies, the overall appearance structure of the punch composed of the die valves is a cylindrical structure with a central hole, the wall of the cylinder is uniformly provided with six convex bodies, every two adjacent convex bodies are arranged in an axially symmetrical mode, the convex bodies are matched with outward oblique ball grooves, a cavity of the center hole is matched with the conical contraction surface of the stand column, and the die valves are provided with convex ribs matched with the assembly grooves in the stand column; the punch is fixed on the stand column through a punch fixing component. The cold finishing die adopts a warm-cold combined forging method instead of cutting work, the production efficiency is high, the cost is low, the cycle is short, metal flow lines are cut off, high strength and shock resistance are achieved, raw materials are saved, and production requirements of automobile parts can be met.

The invention discloses a quick and convenience supporting device for circular well pit construction. The supporting device is positioned in a circular well pit and comprises a center supporting rod,telescopic side supporting rods, connecting rods and waist beams. The center supporting rod is arranged at the center of the circular well pit, the telescopic side supporting rods are distributed at intervals on the lateral side of the center supporting rod, one end of each telescopic side supporting rod is in bolted connection with the center supporting rod, and the other end of each telescopic side supporting rod is in bolted connection with the corresponding waist beam and abutted against the wall of the well pit through the corresponding waist beam. Two ends of each connecting rod are connected with the center supporting rod and the corresponding telescopic side supporting rod to form triangular fixation. The supporting device has advantages that angles and sizes of supporting parts can be adjusted conveniently to meet supporting requirements of foundation pits in different sizes, and high supporting stability, simplicity in operation, low cost and recyclability are realized.

The invention discloses a stair strip sheet material with settled corners and a mold and a method for processing the stair strip sheet material. The stair strip sheet material comprises a base plate and a sticking paper layer which is pressed against and fixed on the base plate, wherein the base plate comprises a head part, a main body part and an extension part, which are sequentially connected in an order from left to right; the head part consists of a circular head part and a connection part in left-right connection; the whole sticking paper layer is continuously distributed at the peripheral side of a corner settlement part of the main body part of the base plate, on an upper plane of the main body part, and at the peripheral side of the head part; the peripheral side of the head part comprises the upper plane of the connection part, the peripheral side of the circular head part and a lower plane of the connection part; and the upper plane of the connection part, the peripheral of the circular head part and the lower plane of the connection part are sequentially connected. By the invention, hot-pressing of sticking paper on the head part of the base plate of the stair strip sheet material, an upper surface of the main body part and the peripheral side of the corner settlement part can be realized in a one-time pressing process, so that production efficiency is greatly improved, and the sticking paper which is pressed against the stair strip sheet material is smooth, continuous, and elegant in appearance.

The invention relates to a combined electrical appliance. The combined electrical appliance consists of a double-vacuum bubble immobilized pole high-voltage load switch unit, a fuse box, an operating mechanism and a novel cabinet body. Compared with the prior art, the combined electrical appliance has the following advantages that: 1, the epoxy resin immobilization and connection of the high-voltage load switch unit and the fuse box is realized; 2, the horizontal layout of the high-voltage load switch unit and a fuse under the condition of not changing the width of a high-voltage load switch is realized; 3, the tripping state of the fuse is very easy to observe intuitively and obviously through a cabinet door observation window, and the influences of troubles and reliable factors caused by performing secondary simulation are avoided; and 4, a tripping mode is that a tripping semiaxle in the operating mechanism is directly pushed by adopting a pull rod, the design is simple and the operation is reliable.

The invention discloses an anchor rod embedding device for a true three-dimensional geomechanics model test, and an operation method. The anchor rod embedding device comprises a base, a top cover, a connecting element, a protection cylinder and hoop rings, wherein the protection cylinder consists of two semicircular cylinders and is provided with anchor rod positioning holes. When the device is used, the protection cylinder is inserted into the trough of the base and is fixed with the base into a whole through the hoop rings. By use of the device, the technical problems in the true three-dimensional geomechanics model test that the system anchor rod is difficult in embedding, the position and the direction of the anchor rod is difficult in fixing and an embedding range is limited can be solved, and meanwhile, the device has the advantages of being simple in construction, convenient in disassembling, reliable and practical, and the operation method can be easily mastered and has a wideapplication prospect.

The invention discloses a production process of an automobile bumper. The production process comprises the following steps of putting prepared raw materials into a mixing mill and mixing; after the raw materials are completely mixed, putting the raw materials into a charging barrel and carrying out heat preservation; putting the dried raw materials into an injection molding machine and carrying out injection molding; carrying out trimming, shaping and checking on an injection-molded product; washing and drying the trimmed product; cooling the dried product; carrying out flame baking on the surface of the cooled product; carrying out surface electrostatic treatment on the baked product; spraying paint on the dust-removed product; baking and curing the product sprayed with the paint; coolingthe baked product; and checking a finished product. With the adoption of the process disclosed by the invention, the automobile bumper has high rigidity and strong toughness and is not easy to break;an injection molding part has high firm strength and strong impact resistance; the types of defects of the injection molding part can be controlled to the greatest extent; the adsorption performanceof the paint is improved and the paint is not easy to discolor and fall off; the bumper has high precision and the process is simple and convenient; and manual participation is reduced and the cost isreduced.