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55results about How to "Prevent down" patented technology

Evaporator of ice maker

The utility model relates to the technical field of ice making, in particular to an evaporator of an ice maker, which comprises a sleeve, a screw scraper arranged in the sleeve, an ice outlet head and an ice breaker, a water inlet communicated with the first flow channel and the interior of the sleeve is formed in the screw scraper; a second flow channel communicated with the first flow channel is formed in the central axis position of the ice breaker, and a water outlet communicated with the second flow channel is formed in the side wall of the ice breaker. The ice maker has the advantages that the condition that the scraper is frozen and cannot rotate to push ice is improved, and the ice making efficiency of the ice maker is improved.
Owner:NINGBO AQUART ELECTRICAL APPLIANCE CO LTD

Cable detection wiring device

The utility model relates to the technical field of cable detection, and discloses a cable detection wiring device comprising a wiring board, the upper surface of the wiring board is fixedly connected with a test wire, the front surface of the wiring board is fixedly provided with an installation plate, the rear surface of the installation plate is provided with a first rectangular groove, the lower end of the first rectangular groove is provided with an opening, and the lower end of the first rectangular groove is provided with a second rectangular groove. The connecting mechanism is arranged on the first rectangular groove, the connecting mechanism comprises a lengthening plate and a clamping plate, the lengthening plate is detachably mounted at the lower end of the mounting plate, the connecting mechanism can flexibly meet the wiring requirements of cables with normal diameters and large diameters by mounting or dismounting the lengthening plate, the universality and applicability of the device are improved, and the practicability of the device is improved. And through the arrangement of a limiting plate, a spring and an L-shaped rod, when the mounting plate is independently used, the clamping plate can be prevented from excessively moving downwards, the practicability and safety of the connecting mechanism are further enhanced, the cable fault can be conveniently detected by a worker, and the working efficiency of the worker is improved.
Owner:江西优尔检测认证股份有限公司

Positioning tool for forklift wheel rim production

ActiveCN224642951UAffect rotationprevent down
The utility model relates to the rim machining technical field provides a positioning tool for forklift rim production, include: base, still include: positioning assembly, set up in the outer surface of base, positioning assembly includes: the placement board, the top center of movable setting in the base, the top center of placement board is equipped with the sliding slot, two -way screw rod, movable setting in the sliding slot, adjusting assembly, set up in the outer surface of base, the rim that needs processing is placed on the placement board, rotates two -way screw rod through the turntable, two -way screw rod is driven arc clamping plate to rim and is held positioning, make rim positioning on the placement board, open electric push rod drive shaft sleeve, pivot and positioning disc and go down, the upper end of rim is positioned, make it more stable positioning on the placement board, pivot can rotate in the inside of shaft sleeve, therefore, when placement board drive rim rotates, positioning disc also rotates along, the upper end of rim is positioned.
Owner:GAOAN XINKERONG MASCH MFG CO LTD

Equal-diameter hole drawing equipment

The invention relates to equal-diameter hole drawing equipment, and relates to the technical field of pipe machining. A supporting frame is arranged at the top of the rack, a positioning base is installed at the bottom of the supporting frame, and a first air cylinder is embedded in the top of the supporting frame. By arranging the flow guide lamination conveying mechanism and the collecting groove, chippings generated during drilling and cutting can be collected and discharged in advance, after steel balls are separated from the interior of a pipe, the steel balls fall onto a flow guide base and are discharged through a discharging groove, and then the steel balls are discharged into the lamination mechanism to be collected after being guided by a discharging pipeline; then, a push rod drives an arc-shaped block to eject the steel balls discharged to the discharging frame upwards, a supporting shifting block can support the bottoms of the steel balls and prevent the steel balls from moving downwards, the push block is pushed in a reciprocating mode, the steel balls can ascend one by one, and the steel balls located at the lower end can also eject the steel balls located at the upper end; and an operator only needs to take the upwards-jacked steel balls one by one, so that the taking efficiency of the steel balls is improved.
Owner:CHANGZHOU SONGYING TECHNOLOGY CO LTD

Operation triangular fixing frame

The utility model belongs to the field of surgical auxiliary instruments, and particularly provides a surgical triangular fixing frame which comprises a fixing frame body, a lower limb fixing support and an upper limb fixing support, the lower limb fixing support and the upper limb fixing support are used in cooperation with the fixing frame body, and a supporting plate is arranged in the surgical triangular fixing frame to improve the stability of the fixing frame. Through holes are formed in the operation triangular fixing frame, the supporting plate and the fixing support, when the operation triangular fixing frame is used, after the blood expelling and hemostasis lantern ring is well placed, a stretching rope of the blood expelling and hemostasis lantern ring is cut off, the rope is tied to the through holes to assist in fixing, the fixing firmness degree can be improved, and the anti-skid groove in the plate face of the operation triangular fixing frame can achieve the anti-skid and anti-disengagement effects.
Owner:SHANDONG YINUO MEDICAL TECH CO LTD

A slider demolding device

The utility model discloses a slider demolding device, including the forming seat, the one end of forming seat is provided with the slider seat, the slider seat is provided with the demolding mechanism on the slope, the demolding mechanism includes the coaxial setting drive assembly and the insert group, the drive assembly includes at least the slider of placing in the slider seat, the inclined guide pillar of the slider and the slider seat, the insert group includes the first insert of with slider fixed connection and the second insert of setting in the first insert, the end profile of first insert is equivalent with the outer profile of injection molding part. The utility model has the beneficial effects of: through first insert and second insert respectively to the gap and the outer wall of abutting on injection molding part, using slider to drive first insert and / or second insert to remove to realize the demolding of two parts, effectively avoid the warping or deformation of injection molding part in the demolding process, guarantee the demolding quality.
Owner:UNIVAC PRECISION PLASTICS SIP

Installation method of reinforcement cage with anchorage device for reducing land acquisition

The invention relates to the field of foundation pit excavation, and discloses a method for installing a reinforcement cage with an anchorage device for reducing land acquisition, which comprises the following steps: step 1, preparing a steel support and a plurality of main reinforcements, the steel support comprises an arc-shaped panel, a connecting part and a base which are connected in sequence, the base is used for providing guidance for an anchor cable, and a plurality of preformed holes are formed in the connecting part; a plurality of main reinforcements penetrate through the preformed holes of the steel supports at the same time and are fixed to the steel supports to form at least one pre-embedded unit; secondly, the pre-embedded units in the first step are used for manufacturing the reinforcement cage, the pre-embedded units are located on the same side of the reinforcement cage, and bases and arc-shaped panels of the pre-embedded units are located on the inner side and the outer side of the reinforcement cage correspondingly; and thirdly, annular reinforcing stirrups are arranged within the range of the steel support, the annular reinforcing stirrups and the steel support are fixed, and the annular reinforcing stirrups and the circumferential main ribs are fixed at the same time. The thickness of a fertilizer groove filling layer is reduced, and the excavation range is reduced.
Owner:CHONGQING RAIL TRANSIT DESIGN AND RESEARCH INSTITUTE CO LTD +1

Connecting structure of screen and supporting arm

The utility model relates to the technical field of screen corbel connection, in particular to a connecting structure of a screen and a corbel, which comprises a screen body, a corbel body, two bolts and a table top, the screen body is provided with a mounting groove, the corbel body is internally provided with a mounting cavity, the interior of the mounting cavity is slidably connected with a bending rod, and the bending rod is connected with the table top. A clamping groove used for being connected with the bent rod is formed in the upper inner wall of the mounting groove. A mounting plate is fixedly connected to the interior of the mounting cavity, a sliding rod is connected to the mounting plate in a sliding mode, an arc-shaped block is fixedly connected to one end of the sliding rod, a transverse strip is fixedly connected to the bending rod, and a plurality of mounting holes used for being connected with the bolts are formed in the upper inner wall and the lower inner wall of the mounting cavity. According to the utility model, the phenomenon that the table board falls off due to the loss of support can be effectively avoided, the stability of the table board is higher, the firmness of the connection between the screen body and the support arm body is better, and the connection between the screen body and the support arm body is facilitated.
Owner:客来福智能科技股份有限公司

Suspended ceiling structure for building interior decoration engineering

The utility model relates to the technical field of suspended ceiling structures, in particular to a suspended ceiling structure for building interior decoration engineering, which comprises a plurality of first suspender assemblies, each first suspender assembly comprises a first screw and a two-way threaded sleeve, one end of each two-way threaded sleeve is connected with a second screw in a screwed manner, and each two-way threaded sleeve is connected with the corresponding first screw in a screwed manner. A connecting frame is fixedly installed at one end of each second screw rod, a main keel is fixedly arranged on the inner side of each connecting frame, a cross-shaped clamping plate is movably arranged among the first screw rods, and a second suspender assembly is fixedly installed on the lower surface of the cross-shaped clamping plate. According to the suspended ceiling structure, after the secondary keel is fixed to the main keel, the secondary keel can be supported and fixed again through the suspender assembly, the downward pulling force of the secondary keel and the decorative plate on the main keel is shared, the firmness of the connecting position is improved, the suspended ceiling structure is more stable, the decorative plate is conveniently prevented from falling off after falling off, and the service life of the suspended ceiling is prolonged. The damage to indoor personnel caused by the falling of the decorative plate is avoided.
Owner:SHENZHEN GUANGWEI CONSTR ENG CO LTD

Coke oven column pressurizing device

The invention relates to the technical field of coke oven production processes, in particular to a coke oven column pressurizing device. According to the device, the fastening component and the pressure adjusting component are arranged, the fastening component is fixed to the furnace column I-shaped steel, a spring of the fastening component is fastened through a first nut, and the spring is used for increasing pressure for the furnace column I-shaped steel; jacking equipment is arranged on a fixed bottom plate of the pressure adjusting component, and oven column I-shaped steel is clamped and fixed through clamping plates on the two sides, so that the fixed bottom plate is fixed to the front end of a fastening plate, the jacking equipment conveniently drives the fastening plate to be close to an oven column, the compression amount of a spring is increased, the pressure of the oven column I-shaped steel is increased, and the stability of a coke oven body structure is guaranteed; through the double-layer spring structure, the stability of spring deformation is improved.
Owner:CHINA MCC22 GROUP CORP LTD

Culture bottle processing and forming device capable of automatically resetting

The invention relates to the technical field of workpiece forming, and discloses an automatic reset culture bottle processing and forming device which comprises a workbench, a forming mold used for blow molding is rotationally installed on one side of the top of the workbench, and a pushing arm used for pushing materials is slidably connected to the front portion of the forming mold. The pushing arm is arranged on the top of the workbench and located on one side of the top of the workbench in the same direction as the position where the pushing arm is located, a cooling table used for blowing and cooling workpieces is fixed to the bottom of the workbench, a conveying panel and a distance adjusting assembly are installed on the top of the workbench and located on one side of the conveying rollers in a transmission mode, and the distance adjusting assembly comprises a plurality of conveying rollers, and each conveying roller is composed of a plurality of rotating blocks. Gaps exist between the conveying rollers, and the conveying rollers are only in contact and are not connected; the spacing between every two supporting rods penetrating through the surface of the adjusting plate through the limiting grooves is enlarged, so that the air outlet is enlarged, the air outlet amount is increased, the bottom of a workpiece with a large size can be rapidly cooled through air outlet, the cooling time is shortened, and the workpiece is rapidly formed.
Owner:TAIZHOU XINLIAN CHENGRUN BIOTECHNOLOGY CO LTD

Rocker arm machining tool

The utility model relates to the technical field of rocker arm tools, and provides a rocker arm machining tool which comprises a tool base, a fixing support and a supporting block, the fixing support is installed on the top of the tool base, a rocker arm body is arranged at the front end of the fixing support, a supporting assembly is arranged at the rear end of the rocker arm body, and an upper pressing assembly is arranged at the lower end of the rocker arm body. The rocker arm body is arranged on the clamp core rod in a sleeved mode, primary fixing is achieved through the opening baffle and the tightening screw, and then the rocker arm body is matched with two-way pressing of the limiting pin with the adjustable position and the pressing rod. According to the rocker arm clamping tool, accurate positioning and stable clamping of a rocker arm body can be achieved, it can be guaranteed that the rocker arm is kept stable in the machining process, displacement or shaking of the rocker arm is effectively prevented, the rocker arm clamping tool can be suitable for clamping operation of rocker arms of different sizes, and the applicability of the rocker arm clamping tool is improved.
Owner:KLT CARBIDE CO LTD +1

Structure for fixing lifting transformer

The utility model relates to the technical field of transformer fixing, in particular to a structure for fixing a lifting transformer, which comprises a stand column and a fixing shell, the fixing shell is located on one side of the two stand columns, and a containing cavity is formed in the side, close to the stand columns, of the fixing shell. The fixing plate is located on the other side of the stand column, the fixing plate is fixed to the lower end of the containing cavity through bolts, and the fixing shell and the fixing plate are fixedly connected with the stand column through a U-shaped clamp; the lower ends of the two lead screws are installed on the inner wall of the fixing shell through bearings, the lower ends of the two lead screws are installed on the inner wall of the containing cavity through bearings, and the upper ends of the lead screws are installed on the inner wall of the top plate through bearings. By improving the structure for fixing the lifting transformer, the lifting transformer has the advantages of being reasonable in structural design, labor-saving and stable in lifting and capable of locking the rocking handle, and therefore the problems and defects in the prior art and equipment are effectively solved.
Owner:SHANDONG ZHONGKE ELECTRIC CO LTD

A laboratory feeding device

ActiveCN224271043UReduce stuck problemsAvoid sticky buildupTransportation and packagingMixer accessoriesExperimental laboratoryBottle
This utility model relates to the field of chemical experimental equipment technology, specifically to a laboratory feeding device. The feeding device is characterized by comprising a mounting frame, which includes a lower material tray support and an upper feeding support. A feeding bottle is mounted on the material tray support, and a reaction vessel is connected below the feeding bottle. The feeding bottle includes a solid material bottle, and a discharge port is provided at the lower end of the solid material bottle. A solid feeding mechanism is provided on the feeding support, and the solid feeding mechanism includes a vertical drive mechanism. A vibration mechanism is provided at the lower end of the vertical drive mechanism. The vertical drive mechanism drives the vibration mechanism to move downward to contact the solid material bottle, causing residual material inside the solid material bottle to vibrate and fall off. The vibration mechanism enables vibratory feeding, causing material adhering to the walls of the solid material container to fall off, ensuring smooth material feeding and guaranteeing experimental efficiency and quality.
Owner:融域智慧(西安)智能科技有限公司

Auto parts die-casting machine

The present invention belongs to the technical field of die-casting, and specifically is a die-casting machine for automobile parts, comprising a machine body, a push mechanism and a positioning mechanism, wherein the push mechanism comprises: a turntable rotatably arranged on a workbench, a lower template slidably arranged on the turntable; a push plate slidably arranged on the turntable; the positioning mechanism comprises two pressing plates slidably arranged on the workbench; by arranging the positioning mechanism, after the lower template moves up and seals the bottom end of the lower mold, the two pressing plates move inward at the same time, the positioning block is inserted into the positioning groove, and the top of the pressing plate is against the bottom of the top flange of the lower template, which can make the lower template fit closely with the lower mold, and can also prevent the lower template from moving downward and horizontally, thereby improving the matching stability during the die-casting process, and by arranging the push mechanism to cooperate with the positioning mechanism, it only needs to control the rotation of the driving shaft to automatically realize the positioning of the lower template during die-casting, the removal of the lower template during demoulding, the movement of the push plate and the push demoulding work, and the degree of automation is high.
Owner:XINGHUA YONGTAI ALUMINUM IND

Accurate flow adjusting device for electroplating

The utility model belongs to the technical field of electroplating, and particularly relates to an accurate flow regulating device for electroplating, which comprises an electroplating pool and an electroplating liquid box, a cross-shaped partition plate is fixedly connected in the electroplating pool, and two liquid level monitors are fixedly communicated with two sides of the electroplating pool. A single electroplating bath chamber copper ion supplementing mechanism is arranged between the electroplating pool and the cross-shaped partition plate electroplating liquid box, the single electroplating bath chamber copper ion supplementing mechanism comprises a pump body fixedly communicated with the top of the electroplating liquid box and four return pipes fixedly communicated with the bottom of the electroplating pool, and four conveying electric control valves fixedly communicated with the top of the pump body. The device is reasonable in structural design, the flow of the electroplating liquid in the single electroplating bath can be independently controlled, the change of the liquid level in the electroplating bath caused by different use of the electroplating liquid in each electroplating bath is avoided, the copper dissolving amount of the electroplating liquid in the single electroplating bath can be accurately regulated and controlled, the electroplating quality is improved, and the reliability is high.
Owner:DONGGUAN XUNSHENG PRECISION TECH CO LTD

Ventilation vertical pipe fixing device

The utility model discloses a ventilation vertical pipe fixing device, which is used for fixing a vertical pipe on a granary wall, and comprises a plurality of fixing components arranged on the wall at intervals along a first direction and used for clamping the vertical pipe; the connecting assembly is used for connecting the two vertical pipes and extends in the direction away from the vertical pipes in the radial direction of the vertical pipes; and the supporting assemblies are arranged on the wall, the multiple supporting assemblies are arranged in the first direction at intervals, and the supporting assemblies are used for supporting the connecting assemblies so as to limit the vertical pipe to move in the first direction. According to the technical scheme, the firmness and the stability of vertical pipe installation are improved, and the use safety coefficient is high.
Owner:JINAN JINZHONG ELECTRONICS SCALE

Welding and positioning tool for stud of automotive rear panel

The utility model discloses a vehicle rear panel stud welding positioning tool which comprises a supporting frame, a limiting mechanism and a clamping mechanism. The limiting mechanism comprises a plurality of positioning pieces detachably connected with a rear panel and connecting pieces connecting the positioning pieces and the supporting frame, and the positioning pieces are provided with receding openings allowing studs to penetrate through. The clamping mechanism comprises a clamping jaw and a quick clamp, and the quick clamp drives the clamping jaw to have a first state in which the clamping jaw is clamped to the bottom end of the rear panel and a second state in which the clamping jaw is separated from the rear panel. The connecting pieces are connected with the supporting frame and the positioning pieces, so that the multiple positioning pieces can be located at the same horizontal height, the multiple receding openings are located at the same horizontal height, welding of the multiple studs at the same horizontal height is achieved through limiting of the receding openings during welding, and errors caused by skew of manual scribing are avoided. In addition, when the tool is used, the clamping jaws are in the first state, the supporting frame is further limited through clamping of the clamping jaws, and the situation that the position accuracy of the connecting piece and the positioning piece is affected by shaking of the supporting frame is avoided.
Owner:潍柴新能源商用车有限公司

River channel protection slope leveling device for water conservancy project

The utility model provides a riverway revetment leveling device for hydraulic engineering, which comprises a tension fixing assembly and a leveling assembly, the tension fixing assembly comprises at least two fixing columns arranged on the upper part of a revetment, all the fixing columns are arranged along the extension direction of the revetment, and a fixing piece is connected between every two adjacent fixing columns; the leveling assembly is movably arranged on the slope protection and arranged below the fixing column, a tension piece is connected between the leveling assembly and the fixing piece, and the tension piece can move along with the leveling assembly in the extending direction of the fixing piece; the leveling assembly comprises a frame, a compression roller and a scraper, a handrail and trundles are arranged on the frame, the handrail is arranged on the upper portion of the frame, the compression roller and the trundles are rotatably connected to the lower portion of the frame, the compression roller and the trundles are connected to the front end and the rear end of the frame in the moving direction respectively, the scraper is connected to the lower portion of the frame, and one end of the scraper obliquely extends forwards and downwards; the slope protection leveling and compacting device can move back and forth on a slope protection in a labor-saving manner so as to level and compact the slope of the slope protection.
Owner:CHINA RAILWAY 19 BUREAU GRP CO LTD +1

Suspended lifting sliding window

The utility model discloses a suspended lifting sliding window, which belongs to the technical field of windows and comprises a window frame, an inner window and an outer window which can be suspended, lifted, pushed and pulled are arranged in an inner cavity of the window frame, the height of the inner window is larger than that of the outer window, and the top end of the outer window is connected with an L-shaped auxiliary block. The top end of the auxiliary block is detachably connected with a first cleaning wiper used for cleaning the outer side of the inner window, and the window frame is detachably connected with a second cleaning wiper used for cleaning the outer side of the outer window. Four sliding grooves are formed in the inner wall of the window frame, first sealing blocks are connected to the two sides of the inner window body and the two sides of the outer window body and are in sliding connection with the sliding grooves, four pulleys are installed in the inner transverse wall of the window frame in an embedded mode, the first sealing blocks are connected with pull ropes wound around the pulleys, and the pull ropes are connected with balancing weights. The window frame comprises a square mounting frame and two limiting frames fixedly connected to the two sides of the mounting frame correspondingly. The suspension lifting sliding window is more labor-saving in use, and the stability and the waterproof effect can be guaranteed.
Owner:FOSHAN MUSEN DOORS & WINDOWS CO LTD

Turnover device for bearing ring machining

The utility model discloses a turnover device for bearing ring processing, which belongs to the technical field of bearing ring processing and comprises a bottom plate, a fixing mechanism is fixedly mounted at the top of the bottom plate and comprises a fixing frame, and turnover mechanisms are rotatably mounted on two sides in the fixing frame through bearings. According to the turnover device for bearing ring machining, the fixing mechanism is arranged, a convex block is held by hand to pull pulling plates towards the two sides to drive fixing insertion rods to retract into mounting holes, so that the turnover mechanism can be turned over in the fixing frame, after the turnover mechanism is turned over to be parallel to the fixing frame, the convex block and a clamping mechanism are loosened, and under the springback effect of a fixing spring, the bearing ring is turned over. And fixing inserting rods are driven to be reset and inserted into the fixing frame and inserted into fixing inserting holes in the two sides of the overturning frame, and it is ensured that when machining personnel machine the ferrule body, the overturning mechanism does not overturn in the fixing frame, and the ferrule body is driven to be overturned to affect machining.
Owner:SHANDONG YUANYUAN BEARING CO LTD

Valve replacement system and valve replacement device

The invention discloses a valve replacement system and a valve replacement device. The valve replacement device comprises a self-expansion support, the self-expansion support comprises a grid pipe framework of an integrated structure and a skirt support framework surrounding the grid pipe framework, the tail end of the skirt support framework is connected to the middle of the grid pipe framework, the skirt support framework is in an outward expansion shape, and the inflow end of the grid pipe framework is located in the surrounding of the skirt support framework; a plurality of stopping pieces are arranged at the outflow end of the grid pipe framework in the circumferential direction; and the winding wire is used for winding the periphery of the grid pipe framework and is located between the skirt support framework and the multiple stop pieces, and the skirt support framework and the multiple stop pieces are used for locking the winding wire in a matched mode. By means of the mode, according to the valve replacement device, the structural design of the valve replacement device is improved, the downward-moving skirt supporting framework can be matched with the multiple stopping pieces, the winding wire can be locked simply and efficiently, and then the valve replacement device is locked to a treatment part efficiently.
Owner:VICKOR QIYUAN (WUXI) MEDICAL TECHNOLOGY CO LTD +1

A water level measuring scale

The utility model relates to the field of measurement technology, concretely relates to water level measuring scale, including fixed column and the rotatory strip of fixed column one side is equipped with, and the peak measuring assembly of rotatory strip inside is equipped with, and the rotatory strip front end is set up scale table and water surface board respectively, and the peak measuring assembly includes the second slide mouth of rotatory strip left end, and the rack of second slide mouth right end and rotatory strip corresponding place is equipped with, and the rack top is equipped with L type board, through setting up the rotating block with second sawtooth block and first spring ring, places second spring ring with rotating block corresponding place inside in rectangular groove inside, cooperates with arc convex block, circular ring groove, thread groove and fixed screw, realizes the rotatory strip with scale table and can be adjusted to the observation angle of suitable and fixed, sets up the peak measuring assembly in the rotatory strip inside to make the float ball with water surface height rise drive L type board and rack synchronous rise, sets up Z type block and third spring ring and prevents the rack to descend, thereby realizes water level measuring scale to water surface peak value data record.
Owner:黄淑梅

Alloy-plated wear-resistant diamond drill bit

The alloy-plated wear-resistant diamond drill bit comprises a drill bit body and a limiting assembly, a screw column is fixedly installed at the bottom of the drill bit body, the outer wall of the screw column is in threaded connection with a drill rod body, and a movable groove is formed in the outer wall of the drill rod body; the limiting assembly used for preventing the drill bit from overturning and loosening is installed in the movable groove, the limiting assembly comprises a movable ring, movable blocks, limiting columns and springs, the movable blocks are symmetrically and fixedly installed on the two sides of the inner wall of the movable ring, the limiting columns are fixedly installed at the tops of the movable blocks, and the outer walls of the limiting columns are sleeved with the springs; sliding grooves are formed in the positions, corresponding to the limiting columns, of the top of the drill rod body, the limiting columns are slidably connected with the drill rod body through the sliding grooves, and inserting grooves are formed in the positions, corresponding to the limiting columns, of the two sides of the bottom of the drill bit. According to the alloy-plated wear-resistant diamond drill bit, rotation of the installed drill bit can be prevented, and meanwhile the moving interval of the moving ring can be limited.
Owner:WUXI DRILLING TOOLS FACTORY

Height adjusting mechanism of seat armrest, seat armrest and seat

The utility model discloses a height adjusting mechanism of a seat armrest, the seat armrest and a seat. The height adjusting mechanism of the seat armrest comprises a first connecting arm, a second connecting arm, a locking block and an elastic piece, a guide groove is formed in the second connecting arm, the guide groove comprises a first side wall and a second side wall, a plurality of clamping grooves are formed in the first side wall, and two shifting parts are arranged on the second side wall; a sliding block is fixedly arranged on the first connecting arm and is limited between the first side wall and the second side wall; the lock block comprises a rotating part, a lock head and a shifting end; a matching part and a stopping part are arranged on the sliding block, and the matching part is matched with the rotating part so that the locking block can swing left and right relative to the sliding block and can move up and down between a first position and a second position relative to the sliding block; the elastic element is used for providing elastic stress for pushing the locking block towards the first side wall. According to the utility model, the height adjustment of the handrail becomes simple and convenient, and the height adjustment of the handrail can be easily realized without using large force.
Owner:HANGZHOU HEIBAIDIAO TECH CO LTD

Movable lifting mechanical arm workbench

The utility model belongs to the technical field of mechanical arm workbenches, and particularly relates to a movable lifting mechanical arm workbench which comprises a bottom plate, a lifting mechanism and a mounting plate are arranged at the upper end of the bottom plate, a mechanical arm is fixedly connected to the upper end of the mounting plate, and a fixing mechanism is arranged on the lifting mechanism. And four universal wheels are fixedly connected to the lower end of the bottom plate and are uniformly distributed at four corners of the lower end of the bottom plate. By arranging the lifting mechanism, the mounting plate can be driven to move upwards, so that the mechanical arm is driven to move upwards, the mechanical arm can conveniently take objects at high positions, and the working range of the mechanical arm is widened.
Owner:GAOMI YONGLI MACHINERY

Petroleum wellhead blowout preventer

The utility model relates to the technical field of wellhead blowout prevention devices, and discloses a petroleum wellhead blowout prevention device which comprises a packing box body, an adjusting mechanism is arranged in the packing box body, a pressure relief assembly is arranged at the top of the packing box body, and the adjusting mechanism comprises a sealing assembly and a mistaken touch prevention assembly. The mistaken touch prevention assembly is arranged on the left side of the sealing assembly. Due to the fact that a worm and a worm gear are provided with locking structures, a push plate is prevented from moving downwards due to the gravity effect, a clamping block is used for clamping a clamping ring, the hand wheel is limited, the situation that the worm rotates due to the fact that a worker touches the hand wheel by mistake is avoided, secondary limiting is conducted on the device, and the sealing effect of the device is enhanced; the hand wheel is rotated to enable the sealing ring not to make contact with the sealing block, the cover plate is jacked up through internal pressure, after the pressure is released, the cover plate continues to close the pressure relief opening through the arrangement of the tension spring, the sealing piece is attached to the pressure relief opening, and air leakage is prevented at ordinary times.
Owner:SHAANXI ORENBURG ENERGY TECHNOLOGY CO LTD

Single-bushing extrusion tool and device and knuckle assembly bushing press-fitting method

The invention relates to a single bush extrusion tool and device and a knuckle assembly bush press-fitting method. A first guide sleeve flush with the top face of a clamp base is arranged on the clamp base; a second guide sleeve is concentrically arranged on the top end surface of the first guide sleeve; the outer diameter of the second guide sleeve is smaller than that of the first guide sleeve and is equal to the diameter of an upper lug main pin hole of the steering knuckle; the top end face of the second guide sleeve is a lining abutting face. The inner diameters of the first guide sleeve and the second guide sleeve are slightly greater than the diameter of the extrusion rod guide section; during use, the second guide sleeve is inserted into the main pin hole of the upper lug of the steering knuckle, the top of the second guide sleeve abuts against the top of the lining in the main pin hole of the upper lug, the bottom face of the upper lug of the steering knuckle is attached to the top face of the first guide sleeve and the top face of the clamp base, the extrusion rod guide section extends into the clamp base to complete extrusion, and the upper lug of the steering knuckle and the clamp base are conveniently positioned through the second guide sleeve. It is guaranteed that the extrusion bar is coaxial with the upper lug of the steering knuckle, the second guide sleeve and the first guide sleeve, the second guide sleeve provides vertical supporting to avoid downward movement, and the requirement for the coaxiality of the extrusion lining is met.
Owner:HUBEI TRI RING FORGING