508results about How to "Avoid indentation" patented technology

A scraper blade preferably configured for use with a reciprocating saw. The blade has a first end comprising a mounting structure, and a second end with a cutting edge. The second end is coupled with and spaced apart from the first end. Preferably, the first end is configured to be mounted in a reciprocating saw chuck and the first and second ends are integral. Further, the first and second ends are preferably manufactured from heat treated steel comprising between approximately 0.45 to 1.05% carbon and between approximately 0.3 to 1.0% manganese. Preferably, the steel has a yield tensile strength of between approximately 150,000 to 250,000 pounds per square inch, a modulus of elasticity of between approximately 20,000 to 40,000 kilopounds per square inch, and a hardness on the Rockwell C scale of between approximately 30 to 60.

The invention provides a clamping mechanism for automatic equipment parts, which includes an inflator, a rubber hose, a strip air bag, a rubber suction cup and a spring. The upper end of the pipe is connected with the bar-shaped air bag, the bar-shaped air bag is installed in the air bag groove, the lower end of the rubber suction cup is connected with the rubber pad one, the spring upper end is connected with the rubber pad one, and the spring bottom is connected with the rubber pad two. The clamping mechanism produces indentations when clamping the parts, which is beneficial to protect the integrity of the clamped parts, facilitates the clamping of parts with smooth surfaces, and makes the clamping mechanism more powerful in clamping functions.

The invention discloses a forming die working mechanism of a self-propelled type multifunctional curb sliding mode machine in the technical field of concrete continuous paving device. When the working mechanism paves dry hard concrete, a construction has the advantages of stable shaping, high compactness and good planeness; the working mechanism includes a shaping die and a die hopper; the shaping die is arranged below the die hopper; the shaping die includes a front plate, a first side plate and a second side plate; the first side plate and the second side plate are respectively connected at the two sides of the front plate; a template is arranged between the first side plate and the second side plate; the shaping die is hinged with the die hopper through a pivot device; the pivot device is connected with the front plate of the shaping die and the front side surface of the die hopper; besides, the working mechanism also includes an externally arranged oscillator; the oscillator is connected with the template through a connecting frame.

The invention belongs to the technical field of engineering construction equipment, and particularly relates to a concrete laminating curing machine, and provides a technical scheme aiming at the current problems of a poor concrete troweling surface laminating construction effect and long elapsed time. According to the technical scheme, the concrete laminating curing machine comprises a first connecting plate and a second connecting plate which are horizontally arranged, a drive roller and a driven roller are parallelly arranged between the first connecting plate and the second connecting plate, the drive roller is located at one end of the first connecting plate, the driven roller is located at the other end of the first connecting plate, the outer walls of the two ends of the driven roller are rotatably connected to the oppositely arranged side walls of the first connecting plate and the second connecting plate, the drive roller is in transmission connection with a drive motor, the oppositely arranged outer walls of the first connecting plate and the second connecting plate are symmetrically provided with a first rotating device and a second rotating device respectively. The concrete laminating curing machine saves time, improves the work efficiency of workers, is good in laminating effect, and improves the molding quality of concrete.

The invention relates to a gas probe (10) for installation in a measurement gas chamber, having a metal housing (30) in which a planar sensor element (21) is disposed, electrically insulated, with at least one contact face (22) that is conductively connected to a metal conductor element (23). For the conductor element (23), an electrically insulating contact holder (24) is provided, which presses the conductor element (23) onto the contact face (22) by means of a spring element (25) that engages the contact holder (24). The conductor element (23) is disposed in an indentation (26) of the contact holder (24), which indentation is oriented toward the contact face (22) of the sensor element (21), and by way of a region protruding out of the indentation (26) of the contact holder (24), the conductor element is in contact with the contact face (22).

The invention discloses an asymmetric flex-rigid combined circuit board and a preparation method thereof. The preparation method comprises the steps of flexible plate production, rigid plate production, dielectric layer production, laminating and the like. According to the asymmetric flex-rigid combined circuit board prepared provided by the invention, the product yield can be effectively improved, and the product performance reliability can be enhanced; furthermore, the asymmetric flex-rigid combined circuit board is simple in flow and smart in design; in addition, the asymmetric flex-rigid combined circuit board can be prepared by commercial equipments and materials of the circuit board, the mass preparation can be carried out, and the integrity and appearance of the circuit can be improved greatly.

The present invention relates to one kind of four roller type hot sizing machine for seamless steel pipe. The hot sizing machine includes one main sizing mechanism on one side of the rail and comprising one frame, one horizontal sizing roller set and one side vertical sizing roller set; one roller changing carriage with roller changing hydraulic cylinder for pushing the horizontal sizing roller set and the side vertical sizing roller set into the square frame or drawing out; and horizontal sizing roller set and side vertical sizing roller set locking hydraulic cylinder. The present invention has reasonable design, compact structure, closed pass structure resulting in increased sizing reduction and raised sizing quality, high production efficiency and other advantages.

The invention discloses a device and method for plastic formation of micro parts through manual submerging type cavitation jetting. The method comprises the following steps: enabling a working fluid to flow towards a pressurizing cylinder and a speed-regulating valve through an outlet of a three-way valve, and enabling the working fluid to enter a nozzle after the pressure and flow of the workingfluid are increased; opening a stop valve, spraying nano-scale abrasive particles in a micro-sized abrasive particle tank into the nozzle to be mixed with the fluid, and spraying the fluid out throughan outlet in the lower end of the nozzle; and introducing the residual fluid in the three-way valve to enter a casing pipe from another outlet of the three-way valve through a depressurizing valve. When uniformly mixed nano-scale abrasive particles and the fluid are sprayed out from the outlet of the nozzle and collide with the low-pressure fluid in the casing pipe, strong shear is generated, anda large number of vacuoles are generated and are sprayed to to-be-machined micro parts; and cavitation jetting is combined with the nano-scale abrasive particles, a mutual promotion effect is achieved, the cavitation is promoted, the plastic formation of the micro parts is promoted, the machined positions are not cracked, and the surface polishing and strengthening effects on a formed site of a workpiece are promoted, so that the device can meet the requirements on the strength, fatigue durability and the like of the workpiece.

The invention discloses a fixing device with an adjusting function for board machining in the technical field of board machining. A motor is mounted at the bottom of a cavity body through a frame; a gear is mounted at an output end of the motor; first slide bars are arranged on the outer walls of the front and back ends of a tooth plate; vertical plates are arranged at the left end of the tooth plate at the top and the right end of the tooth plate at the bottom; fine adjustment screw rods are symmetrically inserted and screwed in the tops of the outer walls of the two sets of vertical plates;when woods are rigidly contacted with clamping plates, a movable rod is stressed to shrink into a concave mounting base, and a stress spring is located in a compression state to conveniently buffer the pressure in rigid contact between the woods and the clamping plates, so that the indentation or damage phenomenon caused by higher instant stress of the woods is prevented; the vertical plates and movable through holes are connected through support slide bars and support chutes to prevent inclination of the vertical plates during clamping of the woods; and through two sets of scale lines, workers are convenient to precisely control the clamping force between the clamping plates and the woods.

The present invention provides a wet multi-plate clutch comprising an external toothed plate formed by sticking a friction material to a core plate and an internal toothed plate formed by sticking a friction material to a core plate and designed so that torque is transmitted by engaging the external toothed plate with the internal toothed plate and wherein the friction materials are stuck to opposed surfaces where the external toothed plate is opposed to the internal toothed plate, and surfaces of the core plates to which the friction materials are stuck are provided with a plurality of surfaces offset axially.

The invention provides a slide rail positioning device, which comprises a positioning set including a fixed sheet and an immobilizing sheet at the rear portion of the central rail, one end of the fixed sheet is mounted on the central rail, the central rail is provided with a hollow slot are for the fixed sheet to cross and extend to outside the outer rail surface, the fixed sheet is hinged with the immobilizing sheet on this side, forming a fastening portion on the lower margin, the outer rail is provided with a convex body, the immobilizing sheet is connected with the fixed sheet in a hinged mode by the two sides of extended hinged sheet, the other half is formed into buckled pressed portion, a pushing surface is formed between the two pressed portions, and the immobilizing sheet is supported on the central rail in a tilted position by the lower margin.

Idler gear as an example of gears having a part worked by cutting, and method and apparatus for manufacturing the same in which the chamfer part is formed at least in a portion between a tooth form with chamfers formed by forging process on an outer peripheral surface and the end part thereof in the axial direction by cutting.

The invention provides a double-plate type filter without replacing a filter screen, belonging to the technical field of melt filter equipment, and aiming at solving the problem that when the existing filter is used, the service life of a filter plate is shortened. The double-plate type filter without replacing the filter screen comprises a shell; a rotating shaft is rotatably arranged in the shell in a penetrating way; the peripheral wall of the shell is respectively provided with a feeding hole and a discharge hole; a fixed filter tray is fixedly connected in the shell; the inner circumference wall of the shell is connected with a movable filter tray in a sliding way along the axial direction of the shell; a scraper is fixedly connected in a feeding cavity of the rotating shaft; a cutting edge of the scraper respectively leans against the sides of the fixed filter tray and the movable filter tray; a hold-down mechanism is also arranged in the shell; the circumference wall of the shell is also provided with an impurity discharge hole which is connected with a transmission mechanism. After the double-plate type filter without replacing the filter screen is used, the service lives of the filter trays are prolonged, and the filtering quality and the filtering efficiency are improved.

A decurling mechanism for performing a decurling process of correcting the curl of paper includes: a first roller; a second roller disposed travelably around the first roller; and a roller position changing mechanism for changing the second roller to a plurality of positions set on a traveling path of the second roller. The plurality of positions include a decurling position in which the decurling process to the paper is enabled and the paper is conveyed while being pinched between the first and second rollers, a conveyance position in which the decurling process to the paper is disabled and the paper is conveyed while being pinched between the first and second rollers and a pinch release position in which the paper is released from the pinch between the first and second rollers.

The invention discloses a ground flattening device for a construction site. The ground flattening device for the construction site comprises a bottom plate, wherein the outer walls of two sides of thebottom plate are separately rotatably connected with moving wheels; a semi-arc groove is formed in the position, which is close to the middle, of the outer wall of the bottom of the bottom plate; theinner walls of the two sides of the semi-arc groove are separately rotatably connected with rotating rods; a grinding roll sleeves the outer wall of each rotating rod; a hydraulic rod is arranged atthe position, which is close to the middle, of the outer wall of the bottom of the bottom plate; a scraping knife is arranged on the outer wall of the bottom of the hydraulic rod; a fixing plate is arranged on one side of the outer wall of the top of the bottom plate; a rectangular opening is formed in the outer wall of one side of the fixing plate; and a cavity is formed in the fixing plate. Thecircumstance that pressing marks remain on the ground when a flattening plate is used for flattening the ground can be prevented, meanwhile, the force of friction between the flattening plate and theground can be reduced, the circumstance that concrete is dry and caked due to water loss of the concrete after the concrete is stored for a long time can be prevented, and the circumstances that the flowing speed of the concrete is over high, excessive concrete is discharged, and thus flattening of the device to the ground is affected can also be prevented.

The invention relates to a fixer, in particular to a planar clipping fixer with a crease-resistant function, and belongs to the field of clothes clipping equipment. The planar clipping fixer comprises a base, a supporting board and a fixing board, wherein the supporting board is fixed on the base, a locking rod penetrates through the base and fixed on the base, the locking rod is fixed at the base end, and the locking rod and the upper end of the base are located on the same plane which is provided with an anti-skidding layer. The planar clipping fixer is simple in structure and convenient to use, cloth is fixed through a flattening board, and indentations caused by local pressing of the cloth is avoided. Meanwhile, the flattening board has a heating function, the clipped cloth can be primarily ironed, and the problem that the indentations are produced on the cloth for a long time to form dead folds, so that post processing is troublesome is solved.

A high-safety injector features that a locator at the front end of injecting tube is sleeved by a connection unit and the connection unit is embedded between injecting tube and plunger. As a result, the needle can not be moved by plunger on injecting.

The embodiment of the invention provides a substrate, a display panel and a display device, which relate to the technical field of display, and can solve the problem that the position of the display panel corresponding to the fingerprint module is easy to generate impressions because the fingerprint module is adhered to the display panel through frame glue and edge glue. The substrate comprises asubstrate and a film layer fixedly arranged on the substrate, wherein the film layer is provided with an opening; the substrate further comprises a fingerprint module which is arranged in an opening of the film layer, wherein a connection line connected with the fingerprint module traces is arranged in the film layer and extends to the edge of the film layer.

The present invention relates to a device for placing a slide of a handgun in proper position relative to the barrel so that an otherwise concealed barrel pin is now revealed. The invention is particularly suited for handgun designs otherwise lacking a positive stop, external barrel pins or levers. The device includes an indentation for receiving a front face of the handgun. The indentation is at least partially surrounded by a raised ridge adapted to prevent the slide from entering the indentation. Placing the barrel in the indentation forces the slide backwards from the front face. The elevation difference between the depth of the indentation and the ridge is selected to expose a barrel pin of the handgun.

The invention discloses a new energy automobile charging pile, and belongs to the technical field of new energy. A charging pile body, a charging gun, a charging base, a charging cable and two clamping mechanisms are included. A storage groove is formed in the side wall of the charging pile body, the charging base is arranged in the storage groove, installing grooves are formed in the two sides ofthe storage groove, and the two clamping mechanisms are arranged in the two installing grooves correspondingly. An inductor is arranged on the groove top of the storage groove. A rain shielding protection mechanism is arranged over the storage groove, a positioning mechanism is arranged under the storage groove, a fixing groove is formed in the front end of the charging gun and internally provided with a charging head part, and the charging head part is provided with a telescopic mechanism. Through the rain shielding protection mechanism, rain drops are prevented from being splashed to the connecting position of the charging gun and the charging base; and through the positioning mechanism and the two clamping mechanisms, the situation that the charging gun falls onto the ground from the charging base and is damaged is avoided, and the damage rate of the charging head part is reduced through the telescopic mechanism. According to the new energy automobile charging pile, safety is improved, and the service life is prolonged.

The invention provides a slide-rail tensile positioning device, including a first rail, a second rail, an anti-escaping shrapnel, a retaining sheet and a fixing plate; wherein, the second rail is correspondingly sheathed with the first rail in a sliding way; the anti-escaping shrapnel is provided with a fixed end and a slotted hole and the fixed end is fixed on the first rail; the retaining sheet is provided with a fixed end and a retaining part; the retaining sheet is arranged between the anti-escaping shrapnel and the first rail and the fixed end is fixed on the first rail corresponding to the fixed end of the anti-escaping shrapnel; the retaining part is correspondingly inserted in the slotted hole of the anti-escaping shrapnel and the fixed plate is fixed on the second rail corresponding to the slotted hole of the anti-escaping shrapnel.

The invention discloses a steel pipe cutting device and relates to the technical field of mechanical equipment. The steel pipe cutting device comprises a supporting table and a cutting machine locatedon one side of the supporting table; the left side of the supporting table is provided with an active carrier roller and a driving motor; a conveying channel is formed in the supporting table and internally provided with a plurality of parallelly-distributed transmission rollers; two clamping mechanisms are symmetrically arranged on the two sides of the upper portion of the conveying channel andeach composed of a hydraulic cylinder and a pressing plate; the two clamping mechanisms are oppositely arranged, and a positioning groove for clamping a steel pipe is formed between the two clamping mechanisms; an extension section is arranged at the side end of the supporting table, and the hydraulic cylinders are mounted on the extension section in a fastened mode; and the back faces of the pressing plates are mounted at the telescopic ends of the hydraulic cylinders in a fastened mode, and the cutting machine is mounted on the right side of the supporting table through a supporting mechanism. The steel pipe cutting device is simple in structure and low in equipment cost, when the steel pipe is cut, the steel pipe can be effectively clamped, positioning is stable, and the cutting qualityand cutting efficiency of the steel pipe are improved.

The invention belongs to the bending process field of sheet metal parts, and specifically relates to an indentation-free bending machine lower mold with an adjustable opening. The indentation-free bending machine lower mold comprises a mold base; the upper surface of the mold base is provided with two mold blocks protruding upward; the two mold blocks are arranged symmetrically on the central line of the mold base; the two mold blocks and the mold base are in a split-type structure; and the two mold blocks are slidingly mounted on the mold base, thereby an open-close arrangement is formed by the two mold blocks; the mold base is further provided with a locking unit for locking the mold blocks in any travel position. A pre-tightening bolt is employed to fix the mold blocks, thereby achieving an adjustable fixed connection among the mold blocks and the mold base; meanwhile, a spline surface is arranged on the contact surface among the mold base and the mold blocks, thereby preventing the mold blocks from becoming loose upon closing the mold; additionally, corners on inner sides of the mold blocks are provided with rollers, accordingly the conventional static friction is replaced by the rolling friction in the process of bending the sheet metal parts, thereby avoiding the indentations on the sheet metal.