207results about How to "Easy to adjust and fix" patented technology

The invention discloses a circular-arc support elevation adjusting bracket and a solar generating unit. The circular-arc support elevation adjusting bracket is used for supporting a solar cell panel in the solar generating unit and adjusting an elevation, and comprises a base support piece, a hinging part, a connecting assembly and a circular-arc support, wherein the base support piece is connected with a basic ground; the base support piece is provided with a positioning piece; the hinging part is arranged at the top end of the base support piece; the lower side of the connecting assembly is hinged at the top end of the base support piece through the hinging part; the upper side of the connecting assembly is connected with and used for supporting the solar cell panel; the circular-arc support is semicircular; in a semicircle, a hinged shaft of the hinging part is taken as the circle center; the two ends of the circular arc of the circular-arc support are connected to the connecting assembly; the circular arc of the circular-arc support is provided with a plurality of positioning holes; and the elevation of the solar cell panel is adjusted by rotating the circular-arc support and positioning the positioning holes at different positions on the positioning piece. The circular-arc support elevation adjusting bracket has the advantages of convenience for operating, high cost performance, attractive appearance and capability of increasing the generating efficiency.

The invention discloses a cutting device, comprising two cutter frames which are arranged in bilateral symmetry, and a connecting mechanism for connecting the two cutter frames, wherein each cutter frame comprises an angle forming component and a cutter box, each angle forming component is provided with an inclined plane, and the cutter box is arranged on the inclined plane of each angle forming component. The cutting device has the beneficial effects that by adopting the structure provided with the cutter frames which are arranged in bilateral symmetry, the cutting of a V-shaped bevel opening of a KT plate can be finished once without repeated operations, so that time and labor force are saved. Meanwhile, the inclination degree of the inclined plane determines the size of the included angle beta of the V-shaped bevel opening, and moreover, the cutting structure with the structure is uniform in stress, so that the surface of the V-shaped bevel opening cut by the cutting device is relatively smooth to facilitate folding use in a later period.

The invention discloses a guiding mechanism for a hardware stamping die. The guiding mechanism for the hardware stamping die comprises a stamping table; guiding columns are welded to the two sides ofthe top of the stamping table, and a same lifting table is slidably mounted on the two guiding columns; a mounting groove is formed in the bottom of the lifting table, a mounting plate is mounted in the mounting groove in a threaded mode, and the bottom of the mounting plate extends to the lower portion of the lifting table and is provided with a die body; the bottom of the die body makes contactwith the top of the stamping table, a same supporting plate is welded to the top ends of the two guiding columns, and a hydraulic pump is fixedly mounted at the bottom of the supporting plate; and a driving rod is welded to an output shaft of the hydraulic pump, and the bottom of the driving rod and the top of the lifting table are welded. According to the guiding mechanism for the hardware stamping die, practical performance is high, the structure is simple, the height of a second positioning plate is conveniently adjusted and fixed, the descending position of the die body is limited throughthe second positioning plate so that extrusion between the die body and the stamping table cannot occur, and the die body can be protected.

The invention provides an exit pupil distance adjusting mechanism for head-mounted visual equipment and an assembly method. The exit pupil distance adjusting mechanism comprises a support frame, a sliding plate and a head band holder. The sliding plate is arranged on the support frame in a front-back sliding mode. The head band holder is fixed on the sliding plate. A positioning structure used for adjusting and positioning sliding of the sliding plate is arranged between the sliding plate and the support frame. As the support frame, the sliding plate and the head band holder are arranged, a user can fix a head band on the head and fix the support frame on head-mounted visual equipment, the sliding plate slides frontward and backward on the support frame so the distance between the eyes of the user and the head-mounted visual equipment can be adjusted (namely, the exit pupil distance can be adjusted), and the user can adjust the exit pupil distance as needed to achieve a healthy way of eye use. After the sliding plate is adjusted through front-back sliding on the sliding plate, the sliding plate is positioned and fixed by the positioning structure, the adjusted exit pupil distance is kept, and thus, the exit pupil distance is simple and easy to adjust and fix.

The invention relates to the technical field of traditional Chinese medicine, and discloses a moxibustion treatment device for Chinese internal medicine. The moxibustion treatment device for Chinese internal medicine comprises a base, wherein the bottom of the base is fixedly connected with a vibration reduction rod; self-locking universal wheels are arranged at the bottom of the vibration reduction rod; the top of the base is fixedly connected with a telescopic rod; the top of the telescopic rod is provided with a foldable installing frame; one end, far away from the telescopic rod, of the installing frame is rotationally connected with an installing plate; and a combustion chamber is welded at the bottom of the installing plate. The moxibustion treatment device for Chinese internal medicine has the advantages that the height of a sleeve outside the combustion chamber can be changed by rotating the sleeve; the space between a contact element and a combustion box can be further changed; through the space change, the temperature on the contact element is changed; the structure of the whole temperature regulation device is simple; the operation is convenient; through annular elasticbands, the dismounting and mounting of isolation gauze are more convenient; the sanitary effect is better; through the isolation gauze, the direct contact of the contact element with the skin of a patient can be prevented, so that the scald injury on the patient due to the high-temperature contact element can be avoided; and the safety is higher.

Seat 2 is mounted to slide blocks 24 and rails 22, which in turn are mounted to upstanding brackets 20. The fore-and-aft adjustment of the seats is thus raised above the level of floor 16, avoiding fouling by sand and dirt; corrosion; and shorting where electric seat adjustment is used. Seat 2 comprises frame 4, backrest 14, and tip-up seat 8 which can be raised around pivots 6, 6′ to allow a higher seating position for marine use. In marine mode, the helmsman sits on cushion 10; in road mode, the driver sits on cushion 12. Latches are provided for fore-and-aft and tip-up cushion adjustment. Flaps 26 may protect sliding surfaces from contamination. Rails 22 may face upwards (34, FIG. 3), downwards (44, FIG. 4), or sideways, as convenient; the seat may be supported on a cradle (40, FIG. 4). Slide blocks may be replaced by rollers (32, FIGS. 2, 6).

The invention relates to the technical field of medical instruments and discloses fracture bone setting assistant fixing equipment used in an orthopedics department. The equipment comprises a bottom plate, wherein the bottom plate is provided with a straight block and a mounting block; the mounting block is provided with a second electronic telescopic rod; the second electronic telescopic rod is provided with a sliding block; the sliding block and the straight block are provided with first electronic telescopic rods; the first electronic telescopic rods are provided with support plates; the support plates are provided with arc-shaped chutes; the arc-shaped chutes are provided with support round rods; the support plates are provided with semicircular plates; the semicircular plates are provided with arc-shaped grooves; the semicircular plates and the support plates are provided with angle adjusting mechanisms; the semicircular plates are provided with straight plates; the straight plates are provided with threaded rods; the threaded rods are provided with moveable blocks; left L-shaped blocks and right L-shaped blocks are fixedly connected with bottoms of the moveable blocks; the bottoms of the left L-shaped blocks are fixedly connected with left semicircular plates; the bottoms of the right L-shaped blocks are fixedly connected with right semicircular plates; both the right L-shaped blocks and the right semicircular plates are provided with limiting grooves; and the limiting grooves are in fitted sliding connection with the left L-shaped blocks and the left semicircular plates. Limbs of different sizes are placed between the left semicircular plates and the right semicircular plates, and thus the device is good in adaptability.

A system is provided for balancing a movable turbine part of a turbine or of a compressor. The system includes a balancing weight element with a first hole and a second hole and a fixing element. The first hole and the second hole are formed in such a manner that the fixing element is detachably insertable in either the first hole or the second hole. The first hole is formed in such a manner that the inserted fixing element in the first hole detachably couples the balancing weight element to the movable turbine part in a spatially fixed position. The second hole is formed in such a manner that the fixing element is receivable in the second hole.

The invention discloses a mechanical keyboard capable of adjusting key rebound strength. The mechanical keyboard comprises a shell, a circuit board, a mechanical shaft body, a working shaft and fastening nuts. The circuit board is fixed inside the shell. A functional spring is fixed on the inner side of a common key cap. The working shaft penetrates the shell, and a first bevel gear is fixed on the working shaft. A side shaft is mounted on the inner wall of the shell, and a cam is fixed on the side shaft. The working shaft is fit with the inner side of a positioning plate, and horizontal bolts are fixed on the side of the positioning plate and the horizontal bolts penetrate through the shell and the fastening nuts are mounted on the horizontal bolts. According to the mechanical keyboard capable of adjusting the key rebound strength, the novel structure design is used, the rebound strength of the common keys and the space key of the device can be adjusted freely in a certain range, and the adjustment structure can be stably fixed after adjustment so that the device can be used stably for a long time after the whole device is opened and adjusted.

The invention discloses a mounting method for a sill anchor combined support frame for a steel structure shear wall and an outer frame column base of a super high-rise building. The method comprises the following steps of: S1, paying off at the position of the sill anchor combined support frame after civil foundation bed construction is finished; S2, mounting a transition rack at a proper position; S3, assembling an anchor bolt stock, an anchor bolt and an anchor bolt penetrating rack into an anchor bolt component, and placing the anchor bolt component on the transition rack; S4, preserving slot templates on a steel plate wall or a steel column foot base anti-shear component; S5, performing a primary calibration on the perpendicularity, the planimetric position and the anchor bolt top elevation of the overall anchor bolt component; S6, performing a secondary calibration on the perpendicularity and the elevation of the anchor bolt in the anchor bolt component before pouring concretes; and S8, pouring building foundation concretes. The mounting method has the advantages of assembling the sill anchor combined support off site so as to reduce in-site cross operation, flexibly adjusting the sill anchor combined support according the practical situation on site, greatly improving the construction efficiency and the like.

The invention discloses a multifunctional disinfection door. The multifunctional disinfection door comprises a hollow first bottom plate, the right side of the first bottom plate is slidably connectedwith a second bottom plate capable of freely moving left and right, a sleeve plate is slidably connected to the outer side of the second bottom plate, a rotating shaft is rotatably connected to the upper end of the sleeve plate, an intermittent structure is arranged on the lower side of the rotating shaft, a driving shaft is arranged on the right side of the intermittent structure, a rotating disc is fixedly connected to the upper side of the rotating shaft, a screw is arranged on the lower side of the first bottom plate, and a rotating structure is arranged on the left side of the screw. Themultifunctional disinfection door effectively solves the problems that the existing disinfection device manually sprays a disinfectant through a sprinkling can or other disinfection spraying devicesso that the workload of the disinfection personnel is increased, the disinfection of the to-be-disinfected personnel is not in place, a dead zone exists in disinfection, the soles of the to-be-disinfected personnel easily forget to be disinfected, other viruses are easily brought into the to-be-disinfected personnel, and the cross infection probability of ward patients is increased are solved.

The invention relates to the field of building construction equipment, and discloses a fabricated platform. The fabricated platform comprises a gantry and a cable supporting mechanism; main beams of the gantry are provided with ground anchor rings for fixing the main beams to a building; each ground anchor ring comprises a fixed U-shaped positioning ring; the rear end of each main beam passes through the positioning ring; a horizontally disposed positioning steel plate is inserted into each positioning ring; the upper part of each positioning steel plate is provided with a nut in threaded connection with the positioning ring for fixing the positioning steel plate; a mounting bracket is fixedly disposed on the buliding; the cable supporting mechanism comprises reels and drawstrings, the reels are horizontally disposed and rotatably connected to the mounting bracket, the upper ends of the drawstrings are fixedly connected to the reels, the lower ends of the drawstrings are fixedly connected with the front ends of the main beams, and the reels are provided with locking mechanisms which fasten the reels with the mounting bracket. After the reels are released from fixation, the length of the gantry extended from the floor panel is conveniently and rapidly adjusted without manual adjustment of the drawstrings, and the adjustment and fixation of the gantry are convenient and reliable.

The invention relates to a wire feeding nozzle fixing clamp for automatically feeding wires for manual argon arc welding and welding equipment. The fixing clamp comprises a clamping portion and a fixing rack, wherein the clamping portion is connected with the fixing rack and is clamped to a welding gun; and the fixing rack is used for adjusting the position and angle of a wire feeding nozzle and fixing the wire feeding nozzle. The provided fixing clamp is compact and attractive in structure, can be detachably arranged on the welding gun, and can conveniently and flexibly adjust the wire feeding angle and the wire feeding position of the wire feeding nozzle so that the fixing clamp can be used with the welding gun.

A system is provided for balancing a movable turbine part of a turbine or of a compressor. The system includes a balancing weight element with a first hole and a second hole and a fixing element. The first hole and the second hole are formed in such a manner that the fixing element is detachably insertable in either the first hole or the second hole. The first hole is formed in such a manner that the inserted fixing element in the first hole detachably couples the balancing weight element to the movable turbine part in a spatially fixed position. The second hole is formed in such a manner that the fixing element is receivable in the second hole.

The invention discloses a building door and window curtain wall wind resistance detection system comprising a pedestal, a work table, and legs arranged between the pedestal and the work table; a blower and an air duct are arranged on the left side of the work table top; the top of the air duct is provided with a water tube having a nozzle in the end portion; an anemograph is arranged on the bottomin middle of the air duct; two second cylinders are symmetrically arranged up and down on the right side of the air duct on the work table top; through holes are evenly arranged on the bottom of an aggregate groove; the right side of the work table is provided with a wind power generator via the pedestal; a frequency converter and a PLC controller are arranged on the left side of the pedestal; astorage battery is arranged on the leg side of the right side of the pedestal. The system can determine the building door and window curtain wall wind resistance ability under different wind velocitystates, can simulate the impact influences on the building door and window curtain wall by the aggregates under stormy weather conditions, and can utilize the wind blown out by the blower to blow thewind power generator to work, thus saving energy consumption.

The invention discloses a protective fixing device of pipelines for water conservancy projects. The protective fixing device includes a supporting rod, bolts, a base, a threaded screw rod, a supporting sleeve, an upper arc-shaped shell, positive magnets, negative magnets, a bayonet, a spring, a lower arc-shaped shell, a limiting block and a connecting rod; the lower arc-shaped shell is installed at the middle position of the top end of the base, and the negative magnets are installed at the top ends of the two sides of the lower arc-shaped shell; the limiting block is installed at the bottom of the connecting rod and the connecting rod is connected to the inner wall of the supporting sleeve in an embedded mode; a spring is installed on the outer side of the supporting sleeve; and meanwhile, the two ends of the spring are connected with the bayonet and the lower arc-shaped shell in a fastened mode correspondingly. By installing a fixing frame, the threaded screw rod, the upper arc-shaped shell, the lower arc-shaped shell, the positive magnets and the negative magnets, when the protective fixing device is put into use, the positive magnets on the upper arc-shaped shell attract the negative magnets on the lower arc-shaped shell to clamp a water pipe, and the bolts are screwed to fix the upper arc-shaped shell and the lower arc-shaped shell so as to fix the water pipe.

The invention discloses a patient posture adjusting device for magnetic resonance detection, and relates to the field of magnetic resonance detection equipment. The following scheme is provided for solving the problems that an existing magnetic resonance examination device is not provided with a posture fixing and adjusting mechanism, and normal examination is inconvenient for patients who do notcooperate or cannot be completely automatically controlled. The device comprises a detection machine, a detection cavity is formed in the detection machine, a horizontally-arranged supporting plate isfixedly installed at the bottom of the detection cavity, a bed body is installed on the supporting plate in a sliding mode, a head pillow plate is installed on the upper surface of one end of the bedbody, and side plates are fixedly installed at the two ends of the head pillow plate. The bed body is accurate to move and position, the body postures of patients of different shapes and ages can befixed through a head fixing structure and hand and leg fixing mechanisms, and the device is easy to operate, high in comfort level, beneficial to normal detection, high in accuracy of detection results and convenient for doctors to make accurate diagnosis.

The invention discloses a light riding anti-wind face mask. The light riding anti-wind face mask is mainly composed of a head cover, a face mask body, a head band, an anti-wind cover and a pull rope.The anti-wind cover used for stopping head-on wind is arranged on the lower edge of the exterior of the common organic glass face mask body, made of cloth materials, and fixed to the face mask body. The anti-wind cover is arranged on the exterior of the lower portion of the face mask body and tightly attached to the face mask body; the head cover with a hat brim and the face mask body are combined, and a combination of the head cover and the face mask body is connected with the head band; the anti-wind cover is made from flexible materials, and when the anti-wind cover is impacted by head-on wind, the lower end of the anti-wind cover will be attached to the body of a rider to stop penetrating airflows; the pull rope is cooperatively arranged on the head cover, one end of the pull rope is connected with the head cover, the other end of the pull rope is connected with the head band, and in this way, the problem can be effectively solved that under the effect of head-on wind, the face mask gets close to the face.

The invention discloses a fixture device for welding pipe structures. The fixture device comprises a base, a stand column, a T-shaped joint and a pipe chuck device; the stand column is arranged on the base; a transverse pipe joint of the T-shaped joint coats the stand column; the pipe chuck device includes a shaft joint, a chuck and clamping jaws; the shaft joint is arranged in center of one disc surface of the chuck; three clamping jaws are annularly and uniformly distributed on the other disc surface of the chuck; and the shaft joint of the pipe chuck device is inserted in a longitudinal pipe joint of the T-shaped joint. The T-shaped joint is connected with the stand column, so that the height of the fixture can be adjusted during welding; two sets of locking bolts are arranged on the transverse pipe joint of the T-shaped joint, so that the T-shaped joint is conveniently adjusted and fixed on the stand column; and the pipe chuck device and the T-shaped joint are connected through the longitudinal pipe joint, the pipe chuck device is convenient to drive welded pipes to rotate.

The invention discloses a vibrating device for producing a steel bar truss concrete laminated slab. The vibrating device comprises a plurality of supporting frames fixedly mounted at the lower end of a mounting plate, a supporting plate is mounted on the mounting plate, a shaping plate is mounted on the supporting plate, a shaping groove is formed in the shaping plate, a concrete layer is poured in the shaping groove, a steel bar truss is placed on the shaping groove, a reciprocating motion mechanism is mounted between the mounting plate and the supporting plate, a plurality of vibration mechanisms are mounted between the supporting plate and the shaping plate, and fixing rods and positioning rods are fixedly mounted on the left side and the right side of the upper end of the shaping plate. The vibrating device has the advantages that the vibrating operation of the concrete layer in the shaping groove can be automatically completed, manual operation is not needed, the labor intensity of workers is effectively reduced, the working efficiency is improved, in the vibrating operation process, it can be effectively ensured that the steel bar truss keeps fixed relative to the shaping plate, and the problem that the quality of finished products is poor due to inclination of the steel bar truss is solved.

The invention discloses an adjustable cervical vertebra anterior approach operation posture placement device for vertebral column surgery. The adjustable cervical vertebra anterior approach operationposture placement device comprises a supporting plate, wherein a lying board is mounted on the supporting plate, fixing blocks I are symmetrically mounted at one end of the lying board, fixing bolts are separately mounted on the fixing blocks I in a penetrating manner, shaft seats I are separately mounted at mutual-close ends of the fixing bolts, fixing plates are separately mounted at side edges,far away from the fixing bolts, of the shaft seats I, sponge plates are separately mounted at side edges, far away from the shaft seats I, of the fixing plates, a fixing cloth strip is mounted on thelying board and is located between the fixing plates, a fixing block II is mounted at the middle part of one side edge of the lying board, the two ends of the fixing cloth strip penetrate through thefixing block II and extend to one side, far away from the fixing cloth strip, of the fixing block II, and a shaft seat II is mounted at the middle part of one side edge, far away from the fixing cloth strip, of the fixing block II.

The invention discloses a suspended ceiling structure without a suspension rod. The suspended ceiling structure comprises a suspended ceiling supporting structure and a veneer, wherein the suspended ceiling supporting structure is fixed with a wall surface; the veneer is fixed on the suspended ceiling supporting structure and comprises vertical rods, upper corner braces, horizontal supports, keelsand sliding plates, wherein the sliding plates are in sliding connection with the horizontal supports; the vertical rods are vertically fixedly arranged on the upper corner braces; the horizontal supports are fixed with the vertical rods; the two ends of each keel are fixed with the sliding plates; and the veneer is fixed on the keels. The suspended ceiling structure without the suspension rod has the advantages of a simple structure, good adjustability, convenience for installation and the like.

The invention discloses a holding head telescopic structure of a car lifting jack. The holding head telescopic structure comprises a bracket and a holding head horizontally arranged within the bracket; the bracket comprises two side plates arranged to directly face each other and parallel to each other and a supporting mechanism for connecting the side plates; the holding head comprises two edge plates arranged on the inner sides of the two side plates, correspondingly; and one ends, facing a working side of the car lifting jack, of the edge plates are connected with holding blocks. The holding head telescopic structure is characterized in that a rack is horizontally mounted on one edge plate; a rotating shaft is arranged on the bracket in a direction perpendicular to the side plates and a gear engaged with the rack is fixed on the rotating shaft; and one end of the rotating shaft penetrates through the side plates of the bracket to be coaxially connected with a circular turning handle. The holding head telescopic structure of the car lifting jack has the advantages of simple structure, easiness in manufacture, wide application range, convenience in adjustment and fixation, capability of favorably improving safety of a car lifting jack system, and the like.

The invention discloses a chemical waste gas treatment system which comprises a spray kettle, wherein one side of the spray kettle is provided with one end of a circulating pipeline, and the other endof the circulating pipeline extends into the spray kettle and is fixedly provided with a three-way valve; one end of a hose is fixedly mounted at each of three water outlets of the three-way valve; awater pump is arranged on the circulating pipeline; one first plate is fixedly mounted on the inner walls of two sides of the spray kettle; a first spray head is rotationally mounted on each of two sides of the spray kettle; the other ends of two of the three hoses are fixedly connected with the corresponding first spray heads; the close sides of the two spray heads are hinged with one end of anadjustment rod; a first hole is formed in the first plate; a rotating rod seat is rotationally mounted in the first hole; the rotating rod seat is in threaded connection with a rotating rod. The chemical waste gas treatment system is high in practicability, simple in structure and convenient to operate and is favorable for adjustment and fixing of the first spray heads and the second spray heads,and use of people is facilitated.

The invention relates to a disk lock scaffold in particular, comprising a vertical pole assembly, a horizontal pole assembly, a diagonal pole assembly and a diagonal brace assembly constituting a scaffold body, wherein the vertical pole assembly comprises a vertical pole, a connecting flange plate and a fixed base assembly, and the fixed base assembly is provided in the very bottom of a pluralityof vertical poles in series; there are four or more vertical pole assemblies, which are all provided vertically; there are a plurality of horizontal pole assemblies, diagonal pole assemblies and diagonal brace assemblies, and two ends of the horizontal pole assembly are respectively fixed on the two connecting flange plates of the same height of two adjacent vertical pole assemblies; two ends of the diagonal rod assembly are respectively fixed on the two connecting flange plates of different heights of two adjacent vertical pole assemblies; the diagonal brace assembly is provided on the outerside of the scaffold body, and the upper end of the diagonal brace assembly is fixed on the connecting flange plate of the vertical rod assembly in the outer side end of the scaffold body. The disk lock scaffold provided in the invention is convenient to use, firm and durable, very strong, convenient to disassemble, very steady for fixation and safe and reliable.

The invention provides a multi-degree-of-freedom pipeline fixing test device. The device comprises two sets of pipeline fixing parts and a degree-of-freedom adjusting part, each set of pipeline fixingpart comprises a pipeline bracket (18) with a rotating shaft and a pipeline clamping plate (7) used for hooping a pipeline, the pipeline clamping plates (7) are supported by the pipeline bracket (18)with the rotating shaft, and the pipeline is clamped and fixed by the pipeline clamping plate (7) through a clamping plate fixing screw hole (19); the pipeline bracket (18) with the rotating shaft isconnected to a slidable bracket (21) through a fixing bolt (17) and can rotate around the rotating shaft at the rotating shaft fixing bolt (17), so that preset angles are formed at the two ends of the pipeline; and the degree-of-freedom adjusting part comprises a transverse adjusting part, a longitudinal adjusting part, a rotary adjusting part and a vertical adjusting part. The device is stable in structure, easy to adjust and capable of meeting impact effects such as test impact.

The invention discloses an anti-skidding scaffold fixing buckle with an angle adjustable function for a building. The anti-skidding scaffold fixing buckle comprises a first clamp, a second clamp, a third clamp and a fourth clamp which are all semicircular cylinders, and one sides of the first clamp, the second clamp, the third clamp and the fourth clamp are provided with boss structures. One endsof the first clamp and the second clamp are connected in a hinged mode, and bosses of the other ends of the first clamp and the second clamp are connected through a first bolt. One ends of the third clamp and the fourth clamp are connected in a hinged mode, and bosses of the other ends of the third clamp and the fourth clamp are connected through a third bolt. The outer surface of the first clampis fixedly connected with a first fixing disc, and the outer surface of the fourth clamp is fixedly connected with a second fixing disc. The first fixing disc and the second fixing disc are provided with corresponding arc-shaped grooves correspondingly, and the first fixing disc and the second fixing disc are attached to each other and locked for fixing through a second bolt penetrating through the arc-shaped grooves. Mutually-symmetrical rotating discs are arranged in the first clamp and the fourth clamp correspondingly, the two rotating discs are connected though a connecting rod, and a plurality of protruding horns are evenly arranged on the inner walls of the clamps.

A folding pinnacle bending device for a mobile crane (20) comprises a joint area (9) which is bent in order to adjust the angle of the folding pinnacle (10) and which comprises a joint (8) in its upper or tensile load area, wherein the joint area (9) comprises a mechanically fixable telescoping means (7) in its lower or pressure load area.

The invention relates to an adjustable car door lock pin mounting accessory used during the mounting of a car door lock pin. The adjustable car door lock pin mounting accessory is a rectangular mounting plate, two projection welding nuts are arranged on one side of the mounting plate, and the mounting plate beside the projection welding nuts is stamped with a transverse regulating rib and a longitudinal regulating rib, wherein the transverse regulating rib is longitudinally arranged on the mounting plate, and the longitudinal regulating rib is transversely arranged on the mounting plate. By welding the car door lock pin mounting accessory on the side body of a car so as to match the mounting of the car door lock pin, the car door lock pin can be conveniently and easily fixed on a correct position on the side body of the car in a regulating way.