170results about How to "Meet fixed needs" patented technology

The invention discloses a construction method of an architectural structure gypsum board with paper surface hung ceiling. The construction method comprises the following steps of:1, installing a light steel keel; 2, installing a top facing gypsum board, namely, installing the top facing gypsum board on the installed light steel keel; reserving side interval joints between side walls on the periphery of the top facing gypsum board and a wall body; forming multiple transverse deformation joints on the top facing gypsum board, and distributing the multiple transverse deformation joints from front to back along the long direction of the top facing gypsum board; and dividing the light steel keel into multiple light steel keel frames by taking the multiple transverse deformation joints as boundaries, and disconnecting the two front and back adjacent light steel keel frames; and 3, constructing the side interval joints and the deformation joints, namely, closing in the transverse deformation joints by adopting first aluminium alloy end caps, and meanwhile closing in the side interval joints by adopting second aluminium alloy end caps. The construction method is simple in steps, reasonable in design, and simple and convenient in construction and operation, has high working efficiency and good construction effect and can be used for solving the problems of ugly appearance, easiness in occurrence of cracks and deformation and the like existing in the conventional gypsum plaster board.

The invention discloses a multifunctional wire clamp of an automobile and relates to the technical field of pipeline clamps. A pipeline clamp body, a clamping piece and a clamping ring are arranged; the pipeline clamp body is an integrated clamp body structure capable of being turned over to be opened and closed; the clamping piece rotates in the circumferential direction of a pipeline accommodating cavity of the pipe clamp body so as to thread and locate a clamp body of the pipeline clamp body; and the clamping ring is arranged on the internal side of the pipeline clamp body in a positioned manner so as to elastically clamp and locate pipelines with different thicknesses. According to the multifunctional wire clamp of the automobile, as the integrated clamp body structure capable of beingturned over to be opened and closed and matched with the pipeline is provided, and the pipelines with different pipe diameters are elastically clamped by using the clamping rings, fixing demands of different pipeline diameters of the whole body can be satisfied, the universality is high, the use is more convenient, and the assembling efficiency is greatly enhanced; and moreover, by arranging theclamping piece to rotate in the circumferential direction of the pipeline accommodating cavity of the pipeline clamp body to lock and open the clamp body of the pipeline clamp body, the pipeline clampis more reliably fixed, and the pipeline is effectively prevented from being freed.

The invention discloses a portable pipe grooving machine which is mainly composed of a fixing device, a power cutting device and a feeding device, etc. The fixing device includes a mounting rack, a cone-cylinder, a tensioning block, a pulling rod, a ratchet spanner and so on; the power cutting device includes a cutter head, an electric part, a supporting upper pole support, an adjusting rod, a sill bar, a moving sleeve and so on; the feeding device includes an axial feed plate and a radial feed device; thereby the tensioning block of the fixing device can be adjusted easily and rapidly, the fixing device is enabled to be fixed in the pipe rapidly, and the time is saved; when machining pipe grooves, a bracket is not needed to support the pipe, a hoist or a manpower is not needed to lift and handle the pipe, the pipe only need to be moved on the spot by an angle within 180 DEG, so that the mechanical power and the manpower are saved; the manner of directly rotary-cutting a pipe end by the cutter head of the prior device is changed into the manner of partial-cutting a pipe wall and then grooving the pipe by the cutter head along with the rotation of the whole power cutting device, thereby the specification of the pipe is increased without changing the cutting power thereof, the machine is portable, and the cost is low.

The invention discloses a universal pedicle screw pressure injection system device and relates to medical instruments. The universal pedicle screw pressure injection system device comprises a, a screw, b, a connecting device and c, a pressure injector; in the screw, a screw head (1) is embedded into a sunken arc surface at the lower end of a U-shaped connecting piece (7); an internal hexagonal counter hole (6) is formed at the top end of the screw head (1); a through lower U-shaped slot (5) is formed at the lower end of the mid-lower part of a screw rod; an upper circular hole (3) is formed on the right side of the U-shaped slot (5); a middle elliptical hole (4) is formed at the position, a screw pitch lower than the upper circular hole (3), on the left side of the U-shaped slot (5); in the connecting device, the outer screw thread at the upper end of a connecting pipe (10) and the lower end are engaged with the inner screw thread of a pressure injector barrel bottom output pipe (11); the lower end of the connecting pipe (10) is a hexagonal pipe head inserted into the internal hexagonal counter hole (6) at the top end of the screw head (1); the outer screw thread at the lower end of a rotary handle pipe (9) is engaged with the inner screw thread of the U-shaped connecting piece (7); in the pressure injector, the outer screw thread on the upper part of an outer barrel (12) is engaged with the inner screw thread of an outer barrel cover (14); the screw thread in the barrel is engaged with the outer screw thread of a vertebra rod (13); and the barrel bottom output pipe (11) is provided with an inner screw thread. The universal pedicle screw pressure injection system device has the characteristics of high pedicle screw inner fixing stability, simple device structure, good operation operability and reduced bone cement leakage, and meets the requirement of clinicians on osteoporosis centrum inner fixing.

The invention discloses an automobile multifunctional wire clamp and relates to the technical field of pipeline clamps. A pipeline clamp body, a clamping ring and a limiting pin are arranged; the pipeline clamp body is an integrated clamp body structure which can be turned over to be opened and closed; the clamping ring is arranged on the internal side of the pipeline clamp body in a positioned manner to realize elastic clamping and positioning of pipelines with different thicknesses; and the limiting pin is arranged at an open locking end of the pipeline clamp body to limit the locking end. According to the automobile multifunctional wire clamp, as the integrated clamp body structure which can be turned over to be opened and closed and is matched with the pipeline is provided, and the pipelines with different pipe diameters are elastically clamped by using the clamping ring, the fixing demands of different pipeline diameters can be satisfied, the universality is high, the use is moreconvenient, and the assembling efficiency is greatly enhanced; and moreover, as the limiting pin is arranged the open locking end of a clamping buckle, the open locking end of the clamping buckle is limited, the fixing of the pipeline clamp is more reliable, and the pipelines are effectively prevented from being freed.

The invention relates to the technical field of a rock mechanical property test, specifically to a sample fixing device for a double-end-face grinding stone machine. The sample fixing device comprises a fixing frame and a clamping device. The fixing frame includes a beam plate, a stringer plate, a pedestal and a screw rod, wherein the stringer plate and the screw rod are fixed at two ends of the pedestal, one end of the beam plate is in a split mounting arrangement with the stringer plate, and the other end of the beam plate is arranged relative to the screw rod. The clamping device is arranged on the pedestal and comprises two sets of main clamps, which are symmetrically arranged at right and left sides of the clamping device and each of which includes a bearing plate, a transmission beam, a slide hinge seat, and a support rod. Through adoption of the structural arrangement, regular processing of a standard rock sample is satisfied, and samples with different cross-sectional shapes can be processed.

An end cover auxiliary welding device for air cylinder machining comprises a base, and the surface of the base is vertically provided with a first supporting plate in a fixed mode and slidably connected with a second supporting plate; the first supporting plate and the second supporting plate are arranged in a spaced mode; the outer side of the second supporting plate is connected with a second pneumatic rod, the top of the interior of the first supporting plate is rotationally provided with a first end cover positioning mechanism in a penetrating mode, the top of the interior of the second supporting plate is rotationally provided with a second end cover positioning mechanism in a penetrating mode, and mirror images of the first end cover positioning mechanism and the second end cover positioning mechanism are symmetrically arranged; and the surface of the base is provided with a driving mechanism, and the driving mechanism is in engagement connection with the first end cover positioning mechanism and the second end cover positioning mechanism. According to the end cover auxiliary welding device, an end cover of an air cylinder is sucked and fixed with negative pressure through the two end cover positioning mechanisms located on the left side and right side, accordingly, end cover falling and deviation are avoided, a cylinder body can be conveniently assembled on an end cover,and quick assembling of the end cover and the cylinder body is achieved.

The invention provides a battery piece printing device and method and a solar battery production system, and relates to the technical field of automation. The battery piece printing device comprises atransmission mechanism, a workbench, a piece feeding station, a workstation and a piece discharging station, and the piece feeding station, the workstation and the piece discharging station are sequentially arranged along the conveying track of the transmission mechanism; a suction cup mechanism comprises a table top, a control assembly and a vacuum pipeline. A through hole is formed in the tabletop; the vacuum pipeline is communicated with the through hole; the control assembly is used for controlling the vacuum degree formed by the suction cup mechanism on the table top. When the table topmoves to the piece feeding station, the suction cup mechanism adsorbs the battery piece at a first vacuum degree, when the table top moves to the piece discharging station, the suction cup mechanismadsorbs the battery piece at a second vacuum degree, and when the table top is located between the piece feeding station and the piece discharging station, the suction cup mechanism adsorbs the battery piece at a third vacuum degree; and the stability of the battery piece conveying process is improved, and the production efficiency and the product yield are improved.

The invention discloses a head holder comprising a base support (1) and two lateral fixing plates (2). Convex sliding rails are arranged on the upper surface of the base support (1). The lateral fixing plates (2) slide along the sliding rails. The lateral fixing plates (2) can slide leftwards and rightwards along the sliding rails to be separated from the base support (1). A neck cushion support (3) is arranged at the front end of the base support (1) and is provided with through holes (301). An airbag (4) is arranged in the middle of the base support (1). Compared with the prior art, the head holder has the advantages that the head of a patient can be fixed without lifting of the head, so that the head holder is practical, convenient and high in comfortableness.

The invention provides a preparing device and method for artificial rock cores. The preparing device comprises pressing plug heads and pressing mold cylinders, and is characterized by also comprisinga heat preservation box, a temperature control device is arranged in the heat preservation box, the pressing plug heads and the pressing mold cylinders are coaxially arranged in the heat preservationbox from top to bottom, and the pressing plug heads can be movably sleeved with the pressing mold cylinders; a jack is arranged outside the heat preservation box, and a threaded rod of the jack is fixedly connected with the tops of the pressing plug heads to drive the pressing plug heads to move inside the pressing mold cylinders; the preparing device also comprises a pressing carrying table and acore taking carrying table; both the pressing carrying table and the core taking carrying table can be arranged at the top ends of the pressing mold cylinders and are used for bearing the pressing mold cylinders; a support for bearing the pressing carrying table and the core taking carrying table is also arranged inside the heat preservation box. The preparing device is simple in structure, convenient to move, small in occupied area and high in production efficiency, the manual operation cost and the economic cost can be reduced, and the artificial rock cores with different sizes can be manufactured and automatically taken out.

The invention relates to a device for casting cast-in-place concrete, in particular to an outer decorating layer formwork for conical columns of a comprehensive gym and a construction method of the outer decorating layer formwork. The outer decorating layer formwork is positioned on the outer side of an outer decorating layer and comprises a face board, back ribs and oppositely-pulling screws, the face board is a bilayer thick wood formwork, a three-ply board is lined on one face, facing the decorating layer, of the face board, and one ends of the oppositely-pulling screws are anchored on conical concrete columns to fix the face board and the back ribs. The construction method includes the following steps: rechecking structural size of cast conical columns; determining a formwork machining detailed drawing; making and assembling the formwork; trepanning for bolts of the formwork; putting the formwork in place for the first time; trepanning structural columns along reserved bolt holes of the formwork; retreating the formwork; implanting sectional screws; putting the formwork for the second time; demounting the formwork. A wood formwork face board and a section steel keel are matched mutually, so that the outer decorating layer formwork is easy to assemble and suitable for structural components variable in shape, and forming effect of the components meets designing requirements under the condition of reasonable and effective reinforcing and supporting.

The invention discloses a workpiece clamp for a milling machine. The workpiece clamp comprises a working bench, sliding rails, oblique wedges, fixing rods, a support column, and an oil cylinder. The workpiece clamp is characterized in that the multiple sliding rails are arranged and the sliding rails are installed at the upper portion of the working bench radially; the oblique wedges are connected with the sliding rails in a movable manner; the fixing rods are fixedly connected with the oblique wedges, and the distances between each fixing rod and the working bench center are the same; the support column is in a cylindrical shape, oblique wedge openings are formed in the outside of the upper end of the support column, and the angles of the oblique wedge openings are matched with the angles of the lower surfaces of the corresponding oblique wedges; and the oil cylinder is installed at the bottom of the working bench and located in the axis of the working bench, a telescopic rod of the oil cylinder is connected with a central point on the lower end face of the support column. The workpiece clamp has the advantages of being simple in structure, reasonable in design, good in using effect, strong in applicability, easy to popularize and use and the like.

The invention discloses a multi-functional anti-dumping fixing device for transplanting of garden trees. The multi-functional anti-dumping fixing device comprises a left foundation support, left clamping blocks, right clamping blocks, a right foundation support and fixed plug pins, wherein foot pins are respectively arranged on the left foundation support and the right foundation support; bendingpipes are connected to the inner sides of the lower parts of the left foundation support and the right foundation support; the left clamping blocks and the right clamping blocks are separately fixed to the right end of the left foundation support and the left end of the right foundation support; clamping plates are arranged on the peripheries of the inner sides of the left clamping blocks and theright clamping blocks; lock catches are mounted on the upper side and the lower side of each left clamping block and each right clamping block; and a fixed plug pin crosses each lock catch. Through the adoption of the multi-functional anti-dumping fixing device for transplanting of garden trees disclosed by the invention, the fixing of the garden trees is stable, tree trunks of different thicknesses are convenient to fix, normal growth of the trees cannot be influenced, and the fixing positions of the tree trunks can be effectively protected from being damaged; the multi-functional anti-dumping fixing device for transplanting of garden trees has the functions of extending and contracting, so that the purpose of adjusting the height of the whole fixing device is achieved, and requirements of fixing different trees are met.

The invention relates to a shaper for main chips of radiator reworking products. The shaper comprises a base plate (1), a handle (2), a linear guide (3), a sliding plate (4), a support (5), a reshaping cushion block (6), a rolling head (7), a workpiece press plate (8), a workpiece support plate (9), a lock nut (10), a height adjustment screw (11), a hand rocking wheel (11), a press air cylinder (13), an abdication block (14) and a protruding head (15). Compared with the prior art, the shaper can reshape core main chips of any length and width, cores of any thickness can be mounted and positioned, and the shaper has the advantages of being high in reshaping efficiency, capable of fully guaranteeing the product quality, convenient to operate, and high in generality.

The invention belongs to the technical field of power transmission line maintenance equipment, and particularly relates to a multi-functional base-based live-line operation unmanned aerial vehicle fora power transmission line. The multi-functional base-based live-line operation unmanned aerial vehicle comprises an air operation system, wherein the air operation system comprises an unmanned aerialvehicle and a lifting support, a bearing base is arranged on the lifting support and comprises four side baffle plates, a bottom plate and four press plates, an accommodating cavity is encircled by the four side baffle plates and the bottom plate, two support arms are arranged at an upper end of each side baffle plate, a rotation shaft is rotatably arranged between the two support arms, a threaded through hole is formed in the rotation shaft, a central axis of the rotation shaft is parallel to an extension direction of each side baffle plate, a top rod is in threaded connection with the threaded through hole, the press plates are connected with an end part of the top rod in a spherical hinge way, and the press plates are arranged in the accommodating cavity. By arranging a multi-functional bearing base, rapid modular switching is achieved, the operation of foreign matter removal of the power transmission line and hydrophobicity measurement of a composite insulator is completed by matching of the unmanned aerial vehicle, and the labor efficiency is improved.

The invention provides a multifunctional display device for artistic design. The device comprises an artwork display protection top plate, an artistic design display cabinet, a reinforcing base, movable wheels, drawer boxes, an artwork fixing clamp structure, an adjustable illumination lamp structure, a side face display box structure, an advertisable message box device, a multifunctional displaywindow structure, a rotary motor, a rotary shaft, drawer cases, a ventilation fan, an alarm apparatus, a stopping block, a rivet and display panels. Through the arrangement of clamps and buffering pads, artworks placed on the upper surface of a display base are conveniently fixed, the safety of the artworks is guaranteed, and the artworks are prevented from falling off; through the arrangement ofa slide rod, slide sleeves and locking screws, the position of a searchlight is conveniently adjusted according to illumination needs, so that the artworks are displayed under good light rays; throughthe arrangement of an advertising bin and advertising brief introduction leaflets, the displayed artworks are conveniently introduced, and tourists further know the artworks conveniently.

The invention discloses an automobile seat slide rail running-in testing station. The automobile seat slide rail running-in testing station comprises a first base plate, two upper rail fixing devices, a first lower rail positioning and sliding device, a second lower rail positioning and sliding device, a second base plate and two crank-connecting rod mechanisms. The two upper rail fixing devices are symmetrically and fixedly arranged on two sides of the first base plate. The first lower rail positioning and sliding device and the second lower rail positioning and sliding device are fixedly arranged below the upper rail fixing devices respectively. The second base plate is arranged below the first base plate at an interval. The crank-connecting rod mechanisms are arranged on the second base plate and connected with the first lower rail positioning and sliding device and the second lower rail positioning and sliding device respectively so as to drive the same. The automobile seat slide rail running-in testing station is delicate in design, high in automation degree and convenient and quick to use, and by means of making full use of characteristics of a to-be-tested slide rail and changing circling motion into horizontal motion by the aid of the crank-connecting rod mechanisms, running-in test between an upper slide rail body and a lower slide rail body can be achieved effectively.

The invention discloses construction engineering cost measuring equipment and belongs to the technical field of construction engineering equipment. The construction engineering cost measuring equipment comprises a rotary platform. Supporting legs are fixed to the four corners of the lower portion of the rotary platform correspondingly. The lower portions of the four supporting legs are all internally provided with hollow chambers. Fixing mechanisms are mounted in the four hollow chambers correspondingly. One sides of the four hollow chambers are each provided with a maintenance port. The outersides of the four maintenance ports are all connected with maintenance doors. The construction engineering cost measuring equipment is provided with the supporting legs, the fixing mechanisms and supporting bases, and each fixing mechanism is provided with a cylinder, movable blocks, guide rods, connecting rods, guide holes, elliptical moving ports, connecting blocks and insertion rods. Through mutual cooperation of the multiple structures, the equipment can be fixed both in a still stone region and in a soft soil or sand region. Thus, the equipment can meet the fixation requirements under different environments, and the market competitiveness of the equipment is improved.

The invention discloses a sensor fixing device for an acoustic emission test, which comprises a fixing mechanism of a sensor body, a slot bracket, a socket rigid bracket and a solid rigid bracket. The fixing mechanism of the sensor body is used to install the sensor, including a cylindrical shell, a plugboard, a pressure spring, a sensor cover, a limit spring, and a limit plate. There are two slot brackets arranged symmetrically, and each slot bracket contains a slot for supporting the fixing mechanism of the sensor body. The socket rigid support is hollow, which is convenient for inserting the solid rigid support with the alveolar surface. Three bolt holes are uniformly arranged on one side of the socket rigid support, and the solid rigid support is fixed by bolts. The invention has a simple structure, is easy to install and disassemble, can be used repeatedly, and can adjust the position of the sensor to meet the simultaneous use of multiple sensors, thereby enhancing the flexibility of sensor detection and improving the accuracy of the acoustic emission test.

A low-frequency magnetic flux leakage sensor magnetic-sensitive element clamping combined multi-axis mobile device is provided. Because U-shaped low-frequency magnetic flux leakage sensors can change the sensor self size based on size difference of measured defects, the structure contains two clamping devices with different specifications, and general detection of the sensors with different sizes can be met through corresponding assembly and adjustment methods. With use of the clamping device, single-channel or multi-channel stability detection information can be obtained, the demand of different detection angles and detection positions can be met, and the stability, reliability and adjustability of detection signals of the low-frequency magnetic flux leakage sensors in magnetic flux leakage detection are achieved.

The invention discloses a fixing device for bearing machining. The fixing device includes a tank body, the middle end of the bottom portion of an inner cavity of the tank body is fixedly connected with a storage battery, and the lower end of the inner cavity is fixedly connected with a division plate; the middle end of the top portion of the division plate is fixedly connected with a working disc,the middle end of the top portion of the working disc is fixedly connected with a bearing, and the upper ends of the left and right sides of the inner cavity of the tank body are both fixedly connected with sliding seats; and the outer surfaces of the sliding seats are slidably connected with sliders. According to the fixing device for the bearing machining, the outer surfaces of the sliding seats are slidably connected with the sliders to meet the demand for fixing bearings with various heights, one side, away from a spring, of a connecting rod is fixedly connected with an electric telescopic rod to meet the demand for fixing bearings with various diameters, and the problems that in the prior art, a fixing device for the bearing machining is not reasonable in structure, the bearings withvarious diameters and the bearings with various heights cannot be fixed to one same device, thereby causing inconvenience for people use can be solved.

The invention discloses a portable fracture external fixing rack which comprises one or two main rack rods and a plurality of fixing needles. The cross section of each main rack rod is semi-elliptical; the middle of a rod body of each main rack rod is provided with a plurality of vertical threaded through holes extending in the directions perpendicular to the trend of the main rack rod; two ends of the rod body of each main rack rod are provided with a plurality of slant threaded through holes extending in the directions obliquely crossed with the main rack rod; the slant threaded through holes at two ends of each rod body are arranged symmetrically; the sizes of the vertical threaded through holes are identical to those of the slant threaded through holes; outer threads which are matched with the vertical threaded through holes or the slant threaded through holes are arranged in the middle of each fixing needle; one end of each fixing needle is a conical self-tapping and self-drilling needle head; and the fixing needles are fittingly mounted on the main rack rods in a threaded manner. The portable fracture external fixing rack is high in bone external fixation reliability, and is simple in structure, few in components, simple in installation and convenient to carry after being installed.

The invention discloses a head fixing device for the tumor radiology department, relates to the technical field of medical instruments, and solves the problems that an existing head fixing device generally fixes the head in a clamping mode, the size of a clamping piece is large, and medical examination is affected; and meanwhile, a clamping device cannot be adjusted, and when the head shapes of patients are different, the fixing effect is sometimes not ideal, the positioning effect is not good, and clamping operation is cumbersome. The clamping device comprises a mounting base, the lower portion of the inner side of the mounting base is rotationally connected with a set of clamping operation pieces. The upper portion of the inner side of the mounting base is rotationally connected with a set of adjusting operation pieces. The fixing requirements of heads of different sizes can be met, meanwhile, the positioning and fixing effects are improved through three-point supporting of the three sets of clamping bases, good adaptability is achieved, the two sides can be adjusted, operation of medical staff is facilitated, adjustment of the two sides can be completed through one-time operation, adjustment operation is easy, and the size is small, and check cannot be blocked.

The invention discloses a CNG bracket with good stability. The CNG bracket with good stability comprises a bottom plate, wherein the outer wall of the top of the bottom plate is connected with a fixing rod through a bolt; the outer wall of one side of the fixing rod is connected with a control switch through a bolt; the outer wall of the bottom of the bottom plate is connected with a protective shell through a bolt; the inside of the protective shell is connected with a storage battery through a bolt; the outer wall of the bottom of the bottom plate is connected with a fixing rod through a bolt; grooves are separately formed in the outer walls of the two sides of the fixing rod; the inner walls of the two sides of each groove are connected with sliding tracks through bolts; and the inner wall of one side of each sliding track is slidably connected with a slider. By sliding of the sliders in the sliding tracks, an upper pressure plate can move vertically, thus, an upper fixing seat anda lower fixing seat can be combined to each other in a clamped manner so as to effectively fix a CNG gas cylinder, meanwhile, the distance between the upper fixing seat and the lower fixing seat is adjustable, the requirements to fixation of CNG gas cylinders in different specifications of manufacturers are met, the upper pressure plate can further be fastened and fixed, and the stability of the whole bracket is ensured.

The invention discloses a packaging fixing device for a hub of a new energy automobile. The device comprises a supporting base, wherein a first sliding base is fixedly connected to the right end of the top of the supporting base, and a first sliding device is slidably connected to the outer surface of the first sliding base; and a second sliding base is fixedly connected to the top end of the first sliding device, a second sliding device is slidably connected to the outer surface of the second sliding base, and a first electric telescopic rod and a third supporting rod are fixedly connected tothe upper end and the lower end of the left side of the second sliding device respectively. According to the packaging fixing device for the hub of the new energy automobile, second electric telescopic rods are fixedly connected to the periphery of the outer surface of a fixing seat, push plates are fixedly connected to the tail ends of the second electric telescopic rods so that the fixing requirements of people on the hubs with different sizes can be met, and the problem that inconvenience is brought to the use by people due to the fact that an existing hub packaging fixing device cannot meet the fixing requirements on the hubs with different sizes is solved.

The invention discloses a fixing device used for engineering blasting and having a damping function. The fixing device comprises adjusting screw rods, limiting plates, an installing bottom plate and chucking clamps. A damping gasket is arranged at the bottom end of the installing bottom plate. Fixing plates are fixed to the two ends of the top of the installing bottom plate correspondingly. The adjusting screw rods are arranged on the fixing plates in a transverse penetrating manner correspondingly. A dynamite pack main body is arranged at the center position of the top of the installing bottom plate. Fixing blocks are fixed to the ends, close to the dynamite pack main body, of the adjusting screw rods correspondingly. The ends, close to the dynamite pack main body, of the limiting platesare connected with the dynamite pack main body. Irregular protrusions are uniformly arranged at the ends, close to the dynamite pack main body, of the limiting plates correspondingly. According to thefixing device used for engineering blasting and having the damping function, the installing bottom plate is installed, ground piles are fixed to the edges of the installing bottom plate and can be conveniently inserted into a wall body or a mountain body to be exploded for carrying out fixed connecting, barbs are uniformly arranged on the ground piles, and deep inserting is facilitated.

The invention relates to the field of automatic screw twisting machines and in particular relates to an automatic screw twisting machine for a photo frame. The automatic screw twisting machine comprises a worktable and a screw locking device, wherein a photo frame fixing jig composed of a positioning rod and two groups of pneumatic clamps is arranged above the worktable; the screw locking device comprises an automatic screw arraying unit and a screw locking unit; the automatic screw arraying unit is provided with a vibration disc sorting mechanism and a screw storage guide rail, so that automatic feeding of screws is realized; the screw locking unit is used for controlling a bit assembly on the screw locking unit to move to an appointed position through a lifting air cylinder and a transverse positioning screw rod; then a screwdriver bit is driven by a driving motor to lock screws, which are conveyed by the automatic screw arraying unit through a screw conveying pipe, to edge corners of the photo frame; the equipment is simple and easy to operate, and the screws in an assembling process of the photo frame can be automatically twisted, so that manpower is saved, errors are reduced and the assembling efficiency can be remarkably improved.

The invention relates to a safety belt and a seat. The safety belt comprises a first buckle assembly and a second buckle assembly, wherein the first buckle assembly comprises a first strap and a first connecting belt, a first fixed part is arranged at one end of the first strap and a first fastening piece is arranged at the other end of the first strap, a second fixed part is arranged at one end of the first connecting belt, and a first clamping piece matched with the first fastening piece is arranged at the other end of the first connecting belt; and the second buckle assembly comprises a second strap and a second connecting belt, the second strap comprises a third end and a fourth end, the third end is provided with a third fixed part, the fourth end is provided with a third fastening piece, a fourth fixed part is arranged at one end of the second connecting belt, and a third fastening piece matched with the third clamping piece or the first clamping piece is arranged at the other end of the second connecting belt. According to the safety belt and the seat, two fixed modes can be formed, and the user requirement is met, so that a user obtains better riding experience.