128results about How to "The fixing method is simple and convenient" patented technology

The invention provides a flexible display device, and relates to the field of display. The flexible display device is used for solving the problem that a flexible display screen is likely to be damaged due to the fixing mode of an existing flexible display device under the folded state. The flexible display device comprises a flexible display screen, a supporting component and a handwriting pen; the supporting component is attached to the non-display face of the flexible display screen; the handwriting pen is used for performing manual input on the flexible display screen; the flexible displaydevice comprises a first end and a second end opposite to the first end, a first groove is formed in the portion, at the first end, of the supporting component, a second groove is formed in the portion, at the second end, of the supporting component, the first groove and the second groove are formed in the side, away from the flexible display screen, of the supporting component, the flexible display device can be folded, the handwriting pen can be clamped into the first groove and the second groove and used for fixing the flexible display device under the folded state. The handwriting pen isadopted for fixing the flexible display device, the problem of containing the handwriting pen is solved, the fixing process is simplified, and meanwhile damage to the flexible display screen is avoided.

The invention discloses an automatic production line for connectors, and relates to the technical field of production of the connectors. The automatic production line comprises a rotating transportation mechanism, a feeding mechanism, an assembling mechanism and a discharging mechanism; the feeding mechanism, the assembling mechanism and the discharging mechanism are circumferentially distributedon the side of the rotating transportation mechanism; the rotating transportation mechanism comprises a rotating component, a plurality of fixing components and a push-and-pull component matched withthe fixing components; the plurality of fixing components are circumferentially distributed at the upper end of the rotating component; the feeding mechanism comprises a sleeve feeding component and asleeve moving component; the sleeve feeding component is arranged on the side of the rotating component; and the sleeve moving component is arranged between the sleeve feeding component and the rotating component. According to the automatic production line, automatic assembling and welding production of the grid electrical connectors is realized, step-by-step processing by the aid of multiple devices is not required, manual product moving steps and positioning steps are reduced, and thus the production efficiency of the grid electrical connectors is improved effectively.

The invention relates to cable deicing equipment in the field of cable engineering, and belongs to the technical field of cable engineering. The equipment comprises a moving cylinder, and the moving cylinder comprises two splicing cylinders; a plurality of connecting plates are arranged on the edges of the two sides of each splicing cylinder; fixed parts are arranged on the opposite connecting plates of the two splicing cylinders; a first mounting plate and a second mounting plate are fixedly arranged on the two splicing cylinders respectively; a first rotating shaft is arranged on the first mounting plate in a penetrating manner; a first driving wheel is arranged on the first rotating shaft; a first spring is arranged on the second mounting plate; circular rings are arranged at the ends of the first springs on the two sides. Second rotating shafts are arranged in the circular rings on the two sides in a penetrating mode, second driving wheels are arranged on the second rotating shafts, first motors are fixedly arranged on the first mounting plates, ice scraping mechanisms and heating mechanisms are arranged in the splicing cylinders, storage batteries are arranged on the faces, deviating from each other, of the two splicing cylinders, the moving cylinders can be automatically located on the cable for moving deicing, and a large amount of manpower is saved.

The invention relates to a convenient-fixing type reinforcing support for a pipeline, and belongs to the technical field of pipeline fixing facilities. The convenient-fixing type reinforcing support for the pipeline comprises a bottom plate, wherein a first plate body and a second plate body are oppositely arranged on the bottom plate; a first arc-shaped plate is arranged at the side edge, far away from the bottom plate, of the first plate body; a second arc-shaped plate is arranged at the side edge, far away from the bottom plate, of the second plate body; fixing plates are arranged on the bottom plate and are positioned at two sides of the second plate body; a rotating shaft penetrates through the second plate body and is fixedly connected to the second plate body; the rotating shaft penetrates through the fixing plates at two sides and is rotatably connected to the fixing plates at the two sides; one end of the rotating shaft is sleeved with a ratchet wheel in a fixed connecting manner; a pawl which fits the ratchet wheel is arranged on the fixing plate close to the ratchet wheel; a rotating rod which is rotatably connected to the corresponding fixing plate is fixedly arranged on the pawl. According to the convenient-fixing type reinforcing support for the pipeline, a second arc-shaped plate is driven to move toward a first arc-shaped plate, thus the ratchet wheel is stopped rotating through the pawl, and as a result, the pipeline is automatically fixed; the fixing manner is simple and convenient; and the mounting efficiency of mounting people is improved.

The invention discloses a magnetic suction charging support. The magnetic suction charging support comprises a support, a base, a magnetic guide sheet, a magnet and a connection device, wherein the base is used for bearing charging equipment, the magnetic guide sheet is arranged on the charging equipment, the magnet is arranged on the main support and is used for attracting the magnetic guide sheet, the connection device is used for fixing the main support, the base is arranged at a lower part of the main support, a first through hole is formed in the base along a vertical direction and is used for a charging wire of the charging equipment to penetrate through, and a positioning device is arranged in the first through hole and can be used for clamping the charging wire. By the magnetic suction charging support, the technical problems of too complexity and operation inconvenience of a fixing mode during the charging process of the charging equipment such as a mobile phone are solved.

The invention relates to an installing structure for a fabricated aluminum grille, and belongs to the technical field of decoration engineering. The installing structure for the fabricated aluminum grille comprises a ceiling, the ceiling is provided with multiple connecting strips, each connecting strip is provided with a grille strip, a sliding groove is formed in each grille strip, and the crosssection of each sliding groove is in a T shape; and each connecting strip is provided with an abutting plate, each abutting plate is provided with multiple rod bodies, the grille strips are providedwith multiple through holes used for allowing the rod bodies to penetrate, each rod body is sleeved with and slidably connected with a sleeve, and the sleeves are provided with fixing parts used for fixing the sleeves to the rod bodies. According to the installing structure for the fabricated aluminum grille, the abutting plates are driven to move into the sliding grooves to drive the rod bodies arranged on the abutting plates to penetrate through the through holes formed in the grille strips, the sleeves are fixed to the rod bodies through the fixing parts and driven to be abut against the grille strips, the rod bodies and the through holes can achieve the blocking effect on movement of the grille strips in the length direction of the connecting strips, the stability of the grille stripsfixed to the connecting strips is improved, and then the installing effect of the grille strips is improved.

The invention relates to a splicing template for a building, and belongs to the technical field of building construction. The splicing template comprises a template body; the template body comprises multiple groups of splicing components; each splicing component comprises multiple groove-shaped modules; the splicing template for the building further comprises first fixing components; each fixing component comprises two plate bodies; multiple first springs are arranged between the plate bodies on two sides; rod bodies are arranged on sides, which face to the plate bodies on the other side, of the plate bodies on one side; through holes for the rod bodies to penetrate through are formed on the plate bodies on the other side; openings for the rod bodies to penetrate through are formed in theopposite faces of the adjacent groove-shaped modules; the plate bodies are pulled by resisting elasticity of the first springs, and the rod bodies are driven to penetrate through the through holes andthe openings, so that fixing of the adjacent groove-shaped modules can be realized; operators can finish operation manually without aid of other tools; the fixing mode is convenient and simple; and assembly efficiency of operation personnel is improved.

The invention discloses a building roofing stainless steel rail lightning protection construction method based on attached type supports; the method comprises the following steps: lightning strip support installation: mounting a plurality of lightning strip supports outside the upper portion of the stainless steel rail on the building roofing, wherein the lightning strip support is an attached type support, each attached type support is fixed outside the upper portion of each rail vertical rod; the attached type support is a J-shaped support, and comprises an outer connecting rod, an inner connecting rod and an arc-shaped connecting section, wherein the inner connecting rod is fixed on the rail vertical rod through a plurality of support connectors; 2, lightning strip installation: using the outer connecting rods of the lightning strip supports to support the lightning strip; 3, downlead connection: welding and fixing the top of the lightning protection downlead with the lightning strip. The building roofing stainless steel rail lightning protection construction method is simple in steps, reasonable in design, good in usage effect, can simply and fast finish the building roofing stainless steel rail lightning protection construction process, and can provide good conductive performance on the construction moulding lightning protection units.

The invention relates to a novel guardrail convenient to install for highways, and belongs to the technical field of road protection equipment. The guardrail comprises a plurality of stand columns which are arranged at intervals, wherein a corrugated plate is arranged at the end part of each stand column, and connecting plates are fixedly arranged at the positions, the stand columns located, on the corrugated plates; rod bodies which are arranged at the connecting plates in a penetrating mode and are slidably connected to the connecting plates are fixedly arranged at the end parts of the standcolumns, and the ends, away from the stand columns, of the rod bodies are uniformly provided with a plurality of abutting rods along the circumferential positions of the rod bodies; openings for allowing the plurality of abutting rods to pass through are formed in the connecting plates, and abutting parts are arranged on the stand columns; the corrugated plates are rotated to drive the connectingplates to move towards the rod bodies so as to drive the rod bodies and the abutting rods to penetrate through the openings in the connecting plates, and at the moment, the corrugated plates are rotated again, so that the abutting parts abut the abutting rods against the surfaces, facing the corrugated plates, of the connecting plates; and the rod bodies and the abutting rods penetrate through the connecting plates to enable the corrugated plates to be mounted on the stand columns, so that the fixing and dismounting modes are simple and convenient.

The invention discloses a mechanical part drilling device. The mechanical part drilling device comprises a base and a motor, wherein a sleeve is arranged in the base, the sleeve is connected with an universal wheel by virtue of a spring, an electromagnet is connected to the inner bottom end of the base, a connecting seat is connected to the side of the base, an adjusting seat is screwed and connected to the connecting seat, a drill through hole is formed in the upper end surface of the base, level bubbles are embedded into the adjacent sides of the upper end surface of the base, and an electric telescopic rod is arranged on the upper end of the base. According to the mechanical part drilling device, the sleeve is arranged in the base, and the sleeve is connected with the universal wheel with the spring, so that the drilling device is convenient to move; the electromagnet is arranged in the base, so that the drilling device can be fixed to the surface of a to-be-processed mechanical part by controlling the electromagnet to power on and off; and a fixed mode is simple and convenient.

The invention relates to a parapet wall connecting structure and a construction method thereof, and belongs to the technical field of house building construction. The parapet wall connecting structurecomprises a wall body located on the edge of a roof, a plurality of groove bodies are formed in the edge of the roof, a cylinder is arranged in each groove body, a plurality of rod bodies are rotationally connected to the wall body in a penetrating mode, an inserting rod is arranged at the end of each rod body, an abutting plate is arranged at the end of each rod body, a plurality of fixing plates are arranged in each cylinder, a plurality of hanging connection plates are arranged on each inserting rod and used for abutting against the faces, away from the wall body, of all fixing plates, a passing space allowing each hanging connection plate to pass therethrough is reserved between every two adjacent fixing plates, and the inserting rods can drive the hanging connection plates to rotateto the faces, away from the wall body, of the fixing plates and abut against the fixing plates, at the moment, the hanging connection plates and the fixing plates can prevent the inserting rods from being disengaged from the cylinders, and therefore the wall body is installed on the roof. The installation mode is convenient and simple, and the construction efficiency of constructors is improved.

The invention relates to a water conservancy project slope supporting structure. The water conservancy project slope supporting structure comprises supporting plates, the supporting plates comprise a plurality of connecting plates, each connecting plate is provided with a fixing piece, a plurality of connecting rods are oppositely arranged on the opposite faces of the adjacent connecting plates in the slope protection height direction, each connecting rod is of a telescopic structure, the telescopic structures comprise fixed rods and movable rods which are inserted and slidably connected into the fixed rods, the end parts, away from the connecting plates, of the adjacent movable rods penetrate through and are rotationally connected to hinge shafts, groove bodies are formed in the positions where the end parts of the connecting rods located, facing the interiors of the connecting plates, of the connecting plates, the groove bodies are used for containing the connecting rods and the hinge shafts at the same time, the fixing rods are provided with moving blocks which are arranged in the groove bodies in a sliding mode in the length direction of the groove bodies, and connecting pieces used for fixing the adjacent connecting plates together are arranged on the opposite faces of the adjacent connecting plates in the horizontal direction of the protection slope. The water conservancy project slope protection structure has the advantage of being capable of supporting protection slope of different sizes.

The invention relates to a traffic sign board and a mounting method thereof, and belongs to the technical field of road facilities. The traffic sign board comprises a base. A stand column is arrangedon the base. A sign is arranged at the end, away from the base, of the stand column. A barrel is arranged at the end, away from the base, of the stand column. The barrel and the stand column are arranged coaxially. An inserted rod inserted into the barrel is fixedly arranged on the sign. Flanges are annularly arranged on the inner wall of the barrel. Space is reserved between the flanges and the inner wall of the barrel. Fixed parts are annularly arranged on the inserted rod in the circumferential direction of the inserted rod, and the fixed parts are used for moving into the space so as to prevent the inserted rod and the barrel from being separated. The fixed parts comprise multiple elastic rods arranged in the circumferential direction of the inserted rod, the inserted rod is inserted into the barrel, the elastic rods are connected into the space between the flanges and the inner wall of the barrel in a clamped manner, and mounting and fixing to the sign can be completed. The fixedmanner is convenient and simple, and the mounting efficiency of mounting workers is improved.

The invention relates to simple clamping equipment. The simple clamping equipment mainly comprises a base board; a placement table is arranged on the base board and provided with a left positioning board; the right end of the left positioning board abuts against a clamping board in a combined mode; a right table column is welded to the rear end of the clamping board; the right end of the right table column is connected with a spring; the left end of the right table column abuts against a left table column in a combined mode; the rear end of the left table column and the rear end of the right table column abut against drive rods in a combined mode respectively; the upper portions of the drive rods are provided with a polish rod and a composite lead screw; the composite lead screw is connected with a motor. An adjusting groove is formed in the rear end of the base board and is internally provided with a main installation base in a sliding mode; a reset spring is arranged between the main installation base and the rear end of the adjusting groove. The two drive rods are driven in a lead screw driving mode to drive a clamp for centering movement, and the effect of automatically clamping bills is achieved. The simple clamping equipment further has the characteristics that the clamp filling mode is simple and operation is simple and has the advantages that the bill fixing mode is simple and applicability is wide.

The invention relates to a road noise reduction protection structure and a construction method thereof. The device comprises a plurality of bases which are spliced with one another, each base is provided with a voice insulation plate. The adjacent voice insulation plates abut against each other. An arc-shaped voice baffle is arranged at the upper part of each voice insulation plate; a notch of thecircular-arc-shaped voice baffle is arranged towards the position where the road surface of the road is located; insertion grooves are formed in the face, facing the voice baffle, of each base and located in the four corners of the base. The voice insulation plates are provided with insertion rods used for being inserted into the insertion grooves. When the voice insulation plate needs to be installed, the voice insulation plate drives the insertion rod to be inserted into the insertion groove, so that the voice insulation plate is fixed to the base through the gravity of the voice insulationplate, the insertion rod is inserted into the insertion groove, the voice insulation plate can be fixed, the fixing mode is convenient and simple, and the installation efficiency of operators for thevoice insulation plate is improved.

The invention discloses a fixing device for a computer display screen. The fixing device comprises a base, an adjusting mechanism, a lifting mechanism and a fixing mechanism. The adjusting mechanism comprises a shaft seat, an adjusting screw and a guide bar. The lifting mechanism comprises an adjusting seat, a lifting assembly and a telescopic rod. The lifting assembly comprises a sliding sleeve,a lifting screw and a lifting nut. The fixing mechanism comprises a placing seat, a clamping plate and a shaft lever. The fixing device has the beneficial effects that the computer display panel is fixed through the fixing mechanism; the fixing device is simple in fixing mode and firm to fix; meanwhile, during use, the distance between the display screen and human eyes can be adjusted by the adjusting mechanism, and the height of the display screen can be adjusted by the lifting mechanism, so that the using demands on different crowds are met.

The invention discloses a thin-plate frame structure linear ultrasonic motor stator with empennages and an excitation method thereof. The main body of a stator is V-shaped, the main body of the statoris a frame formed by thin plates, the tail parts of the two sides of the V-shaped frame are provided with thin plate empennages, mounting holes are formed in the connecting parts of the V-shaped frame and the thin plate empennages, and piezoelectric ceramic pieces are mounted on the thick side surface of the V-shaped frame or the thick side surfaces of the thin plate empennages. The excitation method comprises the steps that piezoelectric ceramic pieces are installed on the thick side surfaces of the two sides of the V-shaped frame, or piezoelectric ceramic pieces are installed on the thick side surfaces of the thin-plate empennages, alternating current signals with the phase difference of 90 degrees are applied to the piezoelectric ceramic pieces on the V-shaped frame or the thin-plate empennages, and vibration in the Y-axis direction and vibration in the X-axis direction with the phase difference of 90 degrees can be excited on a driving point, so that elliptical motion is synthesized at the driving point. If the phase difference of excitation signals of the two corresponding piezoelectric ceramic pieces is changed, the elliptical motion of the driving point can be opposite in rotation direction, and the stator can be driven in two directions. The stator is compact in structure and reliable in vibration effect.

The invention relates to a base layer sampling device for highway construction. The base layer sampling device comprises a connecting plate, wherein a sampling mechanism is arranged on the connectingplate; side plates are arranged on the edges of two sides of the connecting plate; supporting plates are arranged on the edges, which are far away from the connecting plate, of the side plates on twosides; rollers are arranged below the supporting plates on two sides; inserting rods are arranged on the supporting plates in a penetrating manner and are connected with the supporting plates in a sliding manner; plate bodies are arranged on the side walls of the inserting rods and are positioned at positions close to the connecting plate; a plurality of first springs are arranged between the plate bodies and the supporting plates; one end of each first spring is fixedly connected to the corresponding plate body, and the other end of each first spring is fixedly connected to the correspondingsupporting plate; and connecting pieces for driving the inserting rods to be inserted into or separated from the ground are arranged on the supporting plates. The base layer sampling device disclosedby the invention has the advantage that the sample drilling stability of the sample drilling device is improved.

The invention relates to a concrete production material yard dust fall mist spray system, which comprises a factory building body.The factory building body comprises a top plate and a side plate, thetop plate is provided with a raising dust detecting mechanism, the top plate is provided with a plurality of sets of dust fall parts, each set of the dust fall parts comprises a fixing rod connected to the top plate, a rod body isarrangedat the end part, away from the top plate, of the fixing rod, a plurality of connecting rods are arranged on the rod body inthe length direction of the rod body, awater outlet pipe parallel to the rod body isarranged at each of the end parts,away from the rod body, of the connecting rods, a plurality of spray heads are arranged on the water outlet pipesin thelength direction of the water outlet pipes, rotating rings arranged in a sleeving mode and rotatably connected to the rod body are fixedly arranged at the end parts, away from the water outlet pipes,of the connecting rods, driving members are arranged on the rod body at the positions of each of the rotating rings, the position of each of the water outlet pipes is adjusted through the driving members, the dust fall effect on materials with more dust is relatively good when the water outlet pipes are beside one another, and the dust fall effect on the materials with less dust is relatively goodwhen the water outlet pipes are scattered, and theusing effects of the water outlet pipes and the spray heads are improved.

The invention discloses an intelligent cutting device based on internet of things and for industrial production. The intelligent cutting device based on the internet of things and for the industrial production comprises a device main body, a control panel and a second connection plate, wherein a screw rod is fixedly connected with the middle position of the top end of the interior of the device main body, the control panel is fixedly connected with the middle position of one side of the exterior of the device main body, movable connection plates are movably connected with the top end of the second connection plate, a second sliding block is fixedly connected with the middle position of the bottom end of each movable connection plate, and a water outlet is formed in the middle position of the top end of the interior of each movable connection plate. By arranging the movable connection plates at the top end of the second connection plate, the intelligent cutting device based on the internet of things and for the industrial production can adjust the distance between the movable connection plates according to the size of products to be cut, enables the movable connection plates to moveto the right by sliding the second sliding blocks in second sliding chutes, and then enables a spiral clamping plate to move inwards in a fixing sleeve by rotating the spiral clamping plate so as tofix the products to be cut, and the fixing mode is simple and convenient, and can be used for fixing the products different in variety and different in size.

The invention discloses a soil quality conditioning device for medium and low yield fields. A stirring motor is fixedly mounted at one end of the bottom of a storage box, an output shaft of the stirring motor is fixedly connected with a stirring shaft, stirring blades are fixedly mounted on the surface of the stirring shaft at equal intervals, one end of each stirring blade is fixedly connected with a cleaning soft brush, and a filter screen is mounted in the middle of the bottom end of the storage box in an embedded manner. A conditioner used for soil quality conditioning can be conveniently treated, when water and a conditioner enter the storage box, the stirring motor drives the stirring shaft and the stirring blades to rotate, and the water and the conditioner are stirred and mixed to be uniform, so that conditioner can be uniformly fused in water to form a medicament, a discharge pump downwards discharges the mixed medicament into a flow dividing box body, when a construction vehicle walks in a field, the medicament can be uniformly sprayed into soil of the field through spraying holes, the polluted and damaged soil is conditioned, the soil quality and nutrients are recovered, the yield of crops in the field is improved.

The invention discloses a safe convenient to mount fixedly. The safe comprises a safe body, an openable and closable door and a coded lock positioned on the openable and closable door. The safe further comprises a vacuum fixing device 1 and a support device 2, wherein the vacuum fixing device is a vacuum sucker connected with the safe body; the vacuum sucker consists of a connecting part and a sucker base; the sucker base is detachably connected to the connecting part, and is made from an elastic material; the support device comprises a side plate and an accommodation space formed around the side plate, and is in sliding fit with the safe body. According to the safe, a vacuum pressure fixing manner is adopted, so that the safe can be conveniently fixed, is high in performance and suitable for an office and a family, and can also be conveniently carried out for use.

The invention discloses an automatic machining machine tool transmission mechanism of a metal plate shell. First supporting frames are symmetrically mounted on the four corners of the top of a base, convex blocks are connected to one ends of the tops of the first supporting frames, grooves are formed in the tops of the first supporting frames, rolling shafts are arranged in the grooves, a conveying belt is arranged on the surfaces of the rolling shafts, one ends of the rolling shafts are connected with motors, a collection box is arranged at the position, below the conveying belt, of the top of the base, a fan is arranged in the collection box, one end of the fan is connected with a discharging pipe, one end of the collection box is connected with a guide pipe, one end of the guide pipe isconnected with a dust suction pipe, and the top of the support is connected with a cleaning brush. Through the cleaning brush and the dust suction pipe, dust stained on the conveying belt is removed,the phenomenon that dust falling on the surface of the conveying belt during machining is flied off to the other places is avoided, the cleanliness of the machining environment is ensured, the cleaning brush and the dust suction pipe can be more directly treated, and the side effect on a machine tool is avoided.

The invention relates to an anti-sinking floating body for hydraulic and hydroelectric engineering floating matter intercepting, and belongs to the technical field of hydraulic and hydroelectric engineering equipment. The anti-sinking floating body comprises a plurality of floating bodies, and the periphery of each floating body is provided with connection plates; the anti-sinking floating body for hydraulic and hydroelectric engineering floating matter intercepting further comprises first fixing pieces; the edge, away from the corresponding floating body, of each connection plate is providedwith a strip-shaped opening facing towards the interior of the connection plate; each first fixing piece comprises a first spring, and the two ends of the first spring are provided with abutting plates; by moving the multiple floating bodies together and driving the first springs to stretch, the first springs are driven to simultaneously penetrate through the strip-shaped openings on the adjacentconnection plates, at the moment, the abutting plates at the two ends of the first springs can resist elastic force of the first springs to abut against the adjacent connection plates, thus, the adjacent floating bodies are fixed together, the multiple floating bodies are fixed together through the first fixing pieces, and thus, the different quantities of floating bodies can bear different weights of bearing objects.

The invention discloses an internet-based video micro-monitoring device. The internet-based video micro-monitoring device comprises a video camera shell and a micro camera. The front end of the videocamera shell is provided with night viewing infrared lamps and illuminating lamps. The upper portion of the video camera shell is provided with a loudspeaking outlet. A loudspeaker is arranged in theposition, corresponding to the loudspeaking outlet, of the interior of the video camera shell. The lower end of the video camera shell is provided with fixed bases. The surfaces of the fixed bases areprovided with external threads. Each fixed base is provided with a first fixing device. The rear end of the video camera shell is provided with a universal bending pipe. The other end of the universal bending pipe is provided with a second fixing device. According to the internet-based video micro-monitoring device provided by the invention, the micro-monitoring device can be fixed to different locations through the first fixing devices and the second fixing device, and the problem that an existing micro-monitoring device is not likely to be fixed is solved. The loudspeaker can achieve the remote reminding and broadcasting functions in the monitoring process. Accordingly, the micro video camera has diversified functions.

The invention relates to a safety protection device for iron tower assembly. The safety protection device comprises a plurality of protection device bodies, wherein each protection device body comprises a frame body; connecting rods are arranged on the peripheral edges of the frame body; a blocking rod is arranged between every two adjacent connecting rods; each frame body comprises two splicing bodies formed by splicing; each splicing body is arranged in a U shape; an inserting rod is arranged between the splicing bodies on the two sides and is of a telescopic structure; each telescopic structure comprises a first mounting rod and a second mounting rod which is inserted into and slidably connected into the first mounting rod; a plurality of first plate bodies are arranged on the inner wall of each first mounting rod in the circumferential direction of the first mounting rod; a plurality of second plate bodies are arranged on the outer wall of each second mounting rod in the circumferential direction of the second mounting rod; and a passing space allowing the corresponding second plate bodies to pass through is reserved between every two adjacent first plate bodies. The safety protection device has the advantage of being convenient to mount.