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1212 results about "Spring force" patented technology
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A spring is an object that upon application of a force in a given direction compresses and then, after removal of the force, decompresses or springs back to its original dimension. Spring force is the description of the force that causes the spring to rebound.
Quartz boat surface grinding and polishing equipment
The utility model provides quartz boat surface grinding and polishing equipment, which relates to the technical field of grinding and polishing and comprises a grinding and polishing component, a mounting component is arranged at the top of the grinding and polishing component, a dust collection component is arranged at one end of the grinding and polishing component, and the grinding and polishing component comprises a grinding and polishing box. The mounting assembly comprises a grinding motor, and a hydraulic lifting column is mounted at the top of the grinding motor. The pull rod is pulled outwards, so that the spring is stressed and compressed, then the mounting sleeve is arranged on the outer side of the rotating shaft in a sleeving mode, the mounting strip is promoted to be installed in the limiting groove in a sliding mode, the grinding and polishing head is conveniently installed, then the pull rod is loosened, and the spring drives one end of the pull rod to be installed in the rotating shaft through the elasticity of the spring; and limiting is facilitated, operation is convenient and rapid, the grinding and polishing head can be conveniently maintained and replaced at any time, operation convenience is improved, the equipment downtime is shortened, and working efficiency is improved.
Owner:JIANG SU YI TONG XIN NENG YUAN YOU XIAN GONG SI
Low-pulsation plunger pump with dynamic variable flow distribution pre-compression angle
PendingCN121024882APositive-displacement liquid enginesMulti-cylinder pumpsDynamic balanceSpring force
The invention relates to the technical field of mechanical hydraulic pressure, in particular to a low-pulsation plunger pump with a dynamic variable flow distribution pre-compression angle, the low-pulsation plunger pump with the dynamic variable flow distribution pre-compression angle comprises a plunger pump, a shell and an adjusting piece, the plunger pump is fixedly connected with the shell, an oil distribution cover is fixedly connected in the shell, the oil distribution cover is rotatably connected with a flow distribution plate, and the flow distribution plate is fixedly connected with the shell. A blocking piece is fixedly connected to the surface of the valve plate, a groove is formed in the surface of the oil distribution cover, a push rod is slidably connected into the groove, the blocking piece is connected with the push rod in an inserted mode, the push rod is elastically connected with a limiting plate, the limiting plate is in threaded connection with the adjusting piece through a screw rod, and an oil return opening is formed in the groove and communicated with the interior of the shell. The valve plate has the beneficial effects that in a dynamic balance state, the elastic force of the spring and the hydraulic force are balanced in real time, so that the pre-compression angle is automatically adjusted along with the pressure of the oil discharge kidney-shaped hole, and the pressure transition process is always in an optimal state, so that the valve plate can adapt to the working condition change, and the flow pulsation is effectively inhibited and optimized.
Owner:ZHEJIANG UNIV
Automatic system for brake spring force detection
The invention discloses an automatic system for brake spring force detection, which relates to the technical field of mechanical engineering and automatic control, and is characterized in that a multi-physics field coupling measurement module adopts a nested force sensor group (a strain gauge and piezoelectric quartz compound) and non-contact displacement measurement, and is combined with a thermal expansion compensation ring to correct temperature influence in real time; the environmental interference suppression module eliminates electromagnetic and thermal interference through an electromagnetic shielding cavity and a temperature control platform; the dynamic error compensation engine realizes drift prediction and physical field fusion by using six-dimensional attitude sensing and edge calculation (LSTM + GPR double-stage model); the self-calibration executing mechanism completes nanoscale positioning and micro-force control based on air flotation driving and the bionic clamping jaw. The method solves the problem of measurement misalignment caused by environmental interference, material thermal deformation and clamping errors in traditional detection, and is suitable for high-precision spring force detection under complex working conditions.
Owner:JIANGSU COLLEGE OF INFORMATION TECH
Trimming equipment for processing flame-retardant rubber sealing element and use method of trimming equipment
The invention relates to the technical field of flame-retardant rubber sealing element trimming, and discloses trimming equipment for flame-retardant rubber sealing element processing and a using method of the trimming equipment. A discharging assembly for separating a plurality of flame-retardant rubber sealing elements is arranged on the rear side of the top of a box body; a piston rod of a second air cylinder extends, in the process, a second guide column is reset under the action of second telescopic spring force to drive a supporting frame to move, the supporting frame is made to be separated from the bottom of the flame-retardant rubber sealing piece, and at the moment, a first guide column is pushed to drive a partition plate to move; when the supporting frame is separated from the lower portion of the bottom flame-retardant rubber sealing piece, the bottom flame-retardant rubber sealing piece moves to the upper portion of the clamp on the outer side of the sleeve column, discharging of the flame-retardant rubber sealing pieces can be completed, manual discharging by workers is not needed, and the discharging efficiency is improved. And the working efficiency of trimming is effectively improved, and meanwhile, the labor intensity of workers is reduced.
Owner:HANGZHOU YONGTENG RUBBER & PLASTIC IND
A high-precision venturi valve characteristic nonlinear compression spring preparation method and compression spring
The application discloses a high-precision Venturi valve characteristic nonlinear compression spring preparation method and a compression spring, and realizes accurate matching of compression spring performance and nonlinear flow regulation characteristics of the Venturi valve through multi-step optimization design. The method comprises the following steps: establishing a Venturi valve curve coordinate system, calculating a flow area, calculating an external force work, fitting a spring performance curve, determining a force value range, designing a spring gradual change process, heat treatment stress relief, testing and correction, ensuring that the spring performance meets the design requirements, and completing final standardization. The application provides a calculation method for force change law of a valve core of a Venturi valve and the valve core under different valve front static pressures, obtains a theoretical force curve, calculates compression and spring force compensation required by a damping structure of the valve core of the Venturi valve, and through forward development design and production, improves the independence of air volume and pressure of the Venturi valve and the air volume control precision.
Owner:CHINA ELECTRONICS CHUANGDA CONSTR EQUIP TECH CO LTD +1
conductor connection terminal
The invention relates to a conductor terminal with an insulating housing which has at least one conductor entry opening for receiving an electrical conductor in a conductor entry direction, wherein at least one spring-loaded clamping connection is arranged in the insulating housing which is designed for connecting an electrical conductor by means of spring force, wherein the spring-loaded clamping connection has at least one busbar and a clamping spring which has a clamping leg with a clamping edge for clamping an electrical conductor at a clamping point on a contact section of the busbar, and with a retaining element which can be formed integrally with the clamping spring and is designed to hold the clamping leg in an open position.
Owner:WAGO VERW GMBH
Supporting device for rocket and transferring and erecting integrated launching vehicle
The invention relates to the technical field of rockets, in particular to a supporting device for a rocket and a transferring and erecting integrated launching vehicle. The supporting device comprises an erecting arm body and a plurality of auxiliary supporting mechanisms. The auxiliary supporting mechanism comprises a supporting bracket, a disc spring force limiter and at least two linear guide rails. The pre-pressure of the disc spring force limiter is adjustable, so that the rigidity of the supporting bracket is matched with the rigidity of the rocket body; the linear guide rails are arranged on the two sides of the supporting bracket respectively. According to the supporting device for the rocket and the transferring and erecting integrated launching vehicle, the supporting bracket is kept to be in a balanced state through the linear guide rail, the floating function is achieved, and the clamping stagnation phenomenon is prevented; force limiting supporting is achieved by adjusting the pre-pressure of the disc spring force limiter, the rigidity of the supporting bracket is made to be close to the rigidity of a rocket body, and therefore it is guaranteed that the additional bending moment cross section load generated by the erecting arm to the rocket is within the allowable range.
Owner:BEIJING GALAXY POWER EQUIP TECH CO LTD +3
Spring force control insertion loss test probe device
The invention relates to the technical field of insertion loss test, and discloses a spring force control insertion loss test probe device which comprises a mounting seat, an elastic probe assembly and a fine adjustment assembly. A supporting frame is arranged at the bottom of the mounting base, the elastic probe assembly is located below the mounting base, the elastic probe assembly is connected with the supporting frame, the height of the elastic probe assembly is adjustable, the fine adjustment assembly is located on one side of the probe assembly, one end of the fine adjustment assembly is connected with the elastic probe assembly, and the fine adjustment assembly is used for adjusting the elastic value of the elastic probe assembly. The optimal contact pressure can be accurately set according to the characteristics of different circuit boards, poor contact caused by too small pressure or needle mark damage caused by too large pressure is avoided, the same set of device can adapt to the test pressure requirements of different circuit boards, and the problem that the fixed elastic K value cannot be adjusted, and consequently the needle mark difference between different boards is large is solved.
Owner:NANJING TESTING YUAN TECHNOLOGY CO LTD
Spring Compression Casters and Jackstand Apparatus
A caster having a spring feature configured to compress along the stem of the caster when subject to load. The spring achieves maximum compression when subjected to a maximum specified load value. One or more casters may be used in tandem with a jackstand apparatus. When the jackstand is presented without any additional force, the combined spring force of all casters utilized is sufficient to support the weight of the jackstand without achieving maximum compression. When subject to a sufficiently large additional force, each of the springs will achieve maximum compression, and the jackstand apparatus will interact with the supporting terrain directly, resulting a direct transfer of additional load to the terrain through the jackstand apparatus. Some embodiments may comprise a distinct jackstand and cart configuration. Some embodiments may comprise an integrated configuration.
Owner:BOSCH AUTOMOTIVE SERVICE SOLUTIONS INC +1
Sealing arrangement for a control valve and control valve
The invention relates to a sealing arrangement (100) for a control valve (200), comprising a packing (140), a compression element (110), an abutment (120) and a spring force mechanism (130), the spring force mechanism (130) being designed to apply a spring force to the abutment (120), and the abutment (120) being designed to transmit the spring force to the compression element (110). The sealing arrangement (100) according to the invention is characterised in that the compression element (110) comprises a threaded bush (111) and a thrust piece (114), the threaded bush (111) having an external thread (112) designed to engage in an internal thread (212) of the control valve (200) in order to apply a pretensioning force to the packing (140), and the thrust piece (114) being arranged axially movably in an axial bore (113) of the threaded bush (111) and being designed to apply the spring force to the packing (140). The invention also relates to a corresponding control valve (100).
Owner:SAMSON AG
System and method for work and scene lighting
Systems and methods are directed toward a light head including two or more different optical axes. A first optical axis may correspond to a near field lighting area and the second optical axis may correspond to a far field lighting area. The light head may be positioned within a retainer to couple the light head to an enclosure. The retainer may include one or more gripping components to secure movement of the light head in at least three directions and also provide opposing spring forces to block rotational movement of the light head.
Owner:WHELEN ENGINEERING COMPANY
Fluid connection
A fluid coupling may include a receiving element, a securing element, a retaining element and a plug-in element. The securing element may be displaceable between a release position and a locking position. The securing element being may be engaged with the retaining element in the release position of the securing element. The plug-in element may allow the securing element to be displaced. The fluid coupling may include a spring element which exerts a spring force on the securing element so that the securing element is preloaded in the direction of the locking position so that, when the plug-in element is inserted into the receiving space of the receiving element, the securing element is displaced out of the release position into the locking position due to the spring force of the spring element.
Owner:FRISCHE IND PIPES
Compliant oscillating heat pipe
PendingUS20260122852A1Indirect heat exchangersModifications by conduction heat transferSpring forceHeat pipe
A heat sink is provided including: a body including: a first portion; a second portion recessed from the first portion and thermally couplable to a target structure; and a third portion between the first portion and the second portion; and a plurality of oscillating heat pipes integrally formed with the body. The plurality of oscillating heat pipes are included in the first portion, the second portion, and the third portion. The plurality of oscillating heat pipes are configured to apply a spring force in a direction perpendicular to a plane of the body.
Owner:RAYTHEON CO
Intelligent measuring plastic shell type circuit breaker
The application belongs to the technical field of circuit breakers, and discloses an intelligent measurement plastic shell type circuit breaker, which comprises a shell serving as a protective structure of the whole shell type circuit breaker, a switch connected to the inside of the shell and used for opening and closing of a circuit, an operating handle connected to the switch and used for operating the switch, and a middle positioning assembly comprising a positioning arc-shaped plate, a connecting frame, a cylinder, an insertion rod, an inclined plate and a lifting plate. The positioning arc-shaped plate is provided in a total number of two, is connected to the inside of the shell and is symmetrically arranged along the center line of the switch. The lifting plate is used for locking a spring force balance point in the middle of the positioning arc-shaped plate, and the operation torque drops in a cliff-like manner when the lifting plate is disassembled, so that the disassembly difficulty of the operating handle is reduced, the connecting structure is limited, and the problem that the structure inside the circuit breaker is damaged due to impact force caused by sudden release of the operating handle after the operating handle is disassembled is avoided.
Owner:ZHEJIANG HUAHANG ELECTRICAL GROUP
Scraper type permanent magnet synchronous electromagnetic pump
This invention discloses a scraper-type permanent magnet synchronous electromagnetic pump. The pump body has a pump chamber with an opening at one end. An end cover is sealed and fixed to the opening end of the pump chamber. A cam rotor is installed in the pump chamber. The rotating shafts at the front and rear ends of the cam rotor are rotatably connected to the end cover and the pump body, respectively. One end of the upper scraper and the lower scraper are fixed to the inner wall of the pump chamber by upper and lower torsion springs, respectively, dividing the pump chamber into a low-pressure chamber on the left and a high-pressure chamber on the right. The upper and lower torsion springs apply a spring force pointing towards the axis of the cam rotor to the upper and lower scrapers, respectively. The volume of the low-pressure chamber is larger than that of the high-pressure chamber. A winding is embedded in the inner wall at the bottom of the pump chamber or the inner surface of the end cover. Correspondingly, a pair of permanent magnets is embedded in the end face of the cam rotor near the winding. When the cam rotor rotates, the upper and lower scrapers swing, and their free ends always press against the outer circumferential surface of the cam rotor, scraping the fluid on the surface of the cam rotor. The cam-blade rotor, in cooperation with the upper and lower scrapers, improves the overall stability.
Owner:QINGDAO UNIV
Terminal block for connecting an electrical conductor
The invention relates to a conductor terminal for connecting an electrical conductor which is to be inserted into the conductor terminal in a conductor insertion direction (L), comprising a) at least one insulation displacement connection with opposing cutting edges, between which a cutting gap is formed, b) at least one pressure spring designed to press the electrical conductor into the cutting gap by means of spring force, c) at least one holding device designed to keep the pressure spring in a pre-tensioned state in which a spring force is present to press the electrical conductor into the cutting gap, d) at least one release element by which the pressure spring can be released from the holding device, so that the electrical conductor can be pressed into the cutting gap by its spring force.
Owner:WAGO VERW GMBH
Passive locking mechanism for fin stabilizer system and control method of passive locking mechanism
The invention belongs to the technical field of fin stabilizer systems, and particularly relates to a passive locking mechanism for a fin stabilizer system and a control method thereof.The passive locking mechanism comprises a locking pin, an oil cylinder body, a spring, an oil cylinder piston rod and a locking mechanism shell, the shell is installed on an executing mechanism, coaxial installation holes are formed in the two ends of the shell, the cylinder body is arranged in the axial direction of the installation holes, and one end of the cylinder body is sleeved with the spring; the piston rod is fixed in the shell, one end of the piston rod is a piston head and located in the cylinder body, the other end of the piston rod is installed in the installation hole, a sealing structure is arranged between the piston rod and the cylinder body, an oil cavity is formed between the piston rod and the cylinder body, the piston rod is provided with an oil channel, one end of the piston rod is connected with a hydraulic system, and the other end of the piston rod is communicated with the oil cavity. When hydraulic oil is input, the cylinder body is pushed to overcome spring force to pull the locking pin out of the fin handle slot, and when pressure is released, the spring resets to push the locking pin to be inserted into the slot. Automatic unlocking and passive self-locking are achieved, and the problems that manual bolt inserting efficiency is low, potential safety hazards are large, and a contact part is prone to abrasion are solved.
Owner:THE 704TH RES INST OF CHINA STATE SHIPBUILDING CORP +1
A one-way bypass valve for a screw drill and a screw drill
This utility model relates to the field of drilling technology for soil or rock layers, specifically to a one-way bypass valve for a screw drill and the screw drill itself. The drill includes a one-way bypass valve for unidirectional drilling fluid flow. The one-way bypass valve includes a valve body with a valve sleeve inside its inner bore. A one-way valve is located at the outlet end of the valve sleeve. The one-way valve includes a one-way valve seat with a support plate at the end furthest from the valve sleeve. The support plate has a drain hole for drilling fluid passage. A compression spring is also provided on the support plate, and a valve block is located at the other end of the spring. The one-way valve seat has a shoulder near the valve sleeve to stop the valve block. The spring force causes the valve block to abut or disengage from the shoulder, thus closing or opening the one-way valve seat. The compression spring in this utility model is positioned below the valve block, preventing the valve block and spring from being washed away by the drilling fluid with significant impact force, thereby improving the reliability of the entire device.
Owner:SINOPEC OILFIELD SERVICE CORPORATION +1
Automatic train coupling
The invention relates to an automatic train coupling having a coupling head, which comprises a coupling head housing and a coupling closure having a locking mechanism, the coupling closure being in the form of a rotary closure having a coupling eye and a frog, wherein the frog can be rotated into different functional positions; the locking mechanism comprises a plunger, which is displaceably mounted in a plunger housing, and a pawl rod, which can be displaced transversely or diagonally to the coupling direction; in a latching position, the pawl rod blocks a rotation of the frog from the uncoupled position or from a coupling-ready position into the coupled position; when the plunger is in a first position in which the plunger is displaced by the plunger spring force, the pawl rod is blocked in the latching position, and the plunger releases the pawl rod from the latching position in a second position in which the plunger is displaced against the plunger spring force; and the pawl rod is pressed into the latching position by means of an elastic spring device using a spring force and can be released from the latching position against the spring force. The automatic train coupling according to the invention is characterized in that the elastic spring device is mounted in or on the plunger housing.
Owner:VOITH PATENT GMBH
Normally open electromagnetic valve
The utility model relates to a normally open type electromagnetic valve, relate to electromagnetic valve field, the valve body subassembly has the valve cavity in, the valve core sliding sets up in the valve cavity of valve body subassembly, the valve core has the valve core flow channel in, the valve core flow channel is linked with valve cavity and fluid export, the spring is installed in the valve cavity, the one end of spring and the one end of valve body subassembly abuts, its other end and the valve core abut, the coil fixed cover sets up on valve body subassembly, the coil is electrified, the valve core moves to sealed fluid import under the electromagnetic force, or the coil is de-energized, the valve core moves to open fluid import under the spring elasticity force. In the scheme spring force and fluid pressure are set up in the same direction, the valve core is in stable normally open state when working, avoids the abnormal closing of valve, drives the valve core to close with the electromagnetic force of coil, and control loop is simple, and response speed is fast. The electromagnetic valve design principle and structure are simple, and the number of parts is few, and the action performance and sealing performance are stable and reliable, and the weight is light, and the volume is small.
Owner:QUATERNARY SPACE TECHNOLOGY (BEIJING) CO LTD
Rotary damping dial
This utility model discloses a rotary damping dial, relating to the field of mechanical transmission and control. It includes an outer wheel, an inner wheel, and a damping mechanism. At least one damping mechanism is provided between the outer and inner wheels. The damping mechanism includes a set screw threaded onto the outer wheel, a spring at the tail end of the set screw, and a damping pin. By tightening or loosening the set screw, the spring is compressed or released, thereby adjusting the resistance of the damping pin on the inner wheel. The damping mechanism of this utility model consists of a set screw, a spring, and a damping pin. In use, by tightening or loosening the set screw, the spring force is changed, thereby adjusting the resistance of the damping pin on the inner wheel. The resistance between the damping pin and the inner wheel can be adjusted according to the usage scenario, allowing the same specification of damping dial to be used in different scenarios, thus improving the flexibility and practicality of the damping dial.
Owner:SUZHOU FOUNDATION HVAC EQUIP CO LTD
Collet and collet arrangement
The invention relates to a collet chuck and a collet chuck assembly with an axially displaceable, sleeve-like collet head 1 on which clamping elements with inclined surfaces 4, inclined radially inwards to the longitudinal axis 5 of the collet head 1, are arranged. These inclined surfaces bear against a conical surface 8 of a drawbolt 7, which is inclined accordingly to the longitudinal axis 5. When the collet head 1 and drawbolt 7 move relative to each other, the clamping elements slide along the conical surface 8 against a spring force, expanding radially outwards from a relaxed position in the region of the smaller diameter of the conical surface 8 to a clamped position in the region of the larger diameter of the conical surface 8. The clamping elements are several clamping jaws 3 distributed around the circumference of the collet head 1, each of which is guided radially displaceably in radial guide openings 2 in the collet head 1 against the radially inward spring force of one or more spring elements.
Owner:ZF FRIEDRICHSHAFEN AG
A cable laying apparatus for power construction
This invention discloses a cable laying device for power construction, belonging to the technical field of power construction equipment. Specifically, the cable laying device includes a roller component, a triggering component, and a locking component. This invention achieves adaptive and precise locking of the cable drum through the coordinated operation of the triggering and locking components, effectively solving the problems of severe cable wear caused by reliance on frictional transmission in existing devices and cable slack and entanglement due to the inertial rotation of the drum. Specifically, this invention does not rely on friction between the cable and the transmission component for locking control. Instead, the cable tension acts directly on the roller, driving the triggering component to move and release the lock. When the cable stops pulling or slacks, the spring force drives the locking component to automatically engage and lock. Throughout the process, the cable and roller experience rolling friction, resulting in minimal friction and minimizing wear on the cable sheath, thus ensuring the cable's insulation performance and service life.
Owner:HENAN YUGANG ELECTRIC POWER ENG CO LTD
A polishing machine
The utility model discloses a polishing machine, including drive arrangement, work head and transmission mechanism. Work head, by drive arrangement drive rotation, transmission mechanism includes the connecting assembly that links with the pivot of drive arrangement, with connecting piece of connecting assembly sliding and is connected and the elastic piece of elastic abuts to between connecting assembly and connecting piece, connecting piece can move along the axial direction of work head, and the elastic piece exerts the spring force of being toward the side of work head of connecting piece, and work head is connected with connecting piece. Through setting up elastic piece, the work head of polishing machine can axial floating, is favorable to improve the reliability of polishing machine work, guarantees the polishing quality.
Owner:SUZHOU ACCROBALANCE ELECTRONICS CO LTD
All-welded ball valve
The invention relates to the technical field of ball valves, in particular to an all-welded ball valve which comprises a welded valve body, a movable valve element, a ball body and a floating valve seat. Stepped holes are formed in the left side and the right side of an inner cavity of the welding valve body correspondingly, columnar structures in sliding fit with the stepped holes in the corresponding sides are arranged at the two ends of the movable valve element correspondingly, and the two ends of the movable valve element are in sealing fit with the stepped holes in the corresponding sides through corrugated pipes I correspondingly. A springback device for driving the movable valve core to move towards the medium inlet side of the welding valve body is arranged between the movable valve core and the welding valve body; a cut-off device is arranged on the medium inlet side of the welding valve body. By arranging the pressure balance mechanism composed of the movable valve element, the rebounding device and the cut-off device, when the ball body is in the closed state, the medium pressure is mainly borne by the cut-off device, the ball body only bears the elastic force provided by the rebounding device, the sealing reliability of the valve under the high-pressure frequent opening and closing working condition is remarkably improved, and the service life of the valve under the high-pressure frequent opening and closing working condition is remarkably prolonged.
Owner:YANGQUAN VALVE CO LTD
Self-locking type connector device with optimized inclination angle of anchor piece
The utility model discloses a self-locking type connector device with an optimized inclination angle of an anchor piece, and relates to the technical field of self-locking anchorage devices. The anchor comprises an anchor ring assembly, an anchor piece assembly and a fixing assembly, the anchor ring assembly comprises two semi-rings distributed in a mirror image mode, taper holes are formed in the two semi-rings, the anchor piece assembly is conical, the anchor piece assembly comprises two clamping pieces distributed in a mirror image mode, clamping grooves are formed in the two clamping pieces, and limiting assemblies are installed on the two clamping pieces. The two limiting assemblies each comprise a clamping block, springs are fixedly installed in the two sliding grooves, and a plurality of annular clamping grooves which are distributed at equal intervals up and down are formed in the inner walls of the conical holes of the two semi-rings. According to the steel strand clamping device, through the arrangement of the limiting assembly, when the steel strand drives the clamping pieces to move in the taper holes, the clamping blocks in the clamping pieces can be gradually clamped in the annular clamping grooves in the taper holes through the elastic force of the springs, the clamping pieces are limited, and the situation that the clamping pieces move reversely, and the clamping force on the steel strand is lost can be prevented.
Owner:MINNAN INST OF SCI & TECH
Switch assembly and electric tool
The utility model discloses a switch assembly and an electric tool, the switch assembly comprises a first installation member, a second installation member and a reset member which can be arranged in a relative pivoting manner, the first installation member is provided with a first trigger member, the second installation member is provided with a second trigger member, and the reset member comprises a plurality of pressure springs. In a first moving stroke in which the first mounting piece and the second mounting piece rotate relatively and approach each other, the first trigger piece and the second trigger piece approach each other, so that the electric tool is switched to a first working state, meanwhile, each pressure spring is pressed to be shortened and store energy, and in a second moving stroke in which the first trigger piece and the second trigger piece are far away from each other, the electric tool is switched to a second working state. And each pressure spring extends and provides reset force for driving the two to be far away, so that the electric tool is switched to a second working state. According to the utility model, the condition that the pressure spring is inclined and clamped along with the action of the switch assembly can be improved, and meanwhile, the spring force needing to be overcome is also reduced in the assembly process, so that the assembly operation difficulty is reduced.
Owner:SIJIEDA TECH (SUZHOU) CO LTD
Roof displacement monitor
A top plate displacement monitor comprises a first shell, a mounting sleeve is arranged on one side of the first shell, and a guide pipe assembly is mounted on the side, away from the first shell, of the mounting sleeve; a winding wheel is arranged on the outer side, away from the mounting sleeve, of the first shell, multiple strands of steel wire ropes are wound around the winding wheel, and the multiple strands of steel wire ropes sequentially penetrate through the first shell, the mounting sleeve and the guide pipe assembly to be connected with clamping heads; a plurality of moving blocks corresponding to the steel wire ropes are arranged in the mounting sleeve, the steel wire ropes penetrate through the moving blocks and can be fixed to the moving blocks, a plurality of rotating wheel assemblies corresponding to the moving blocks are rotationally arranged in the first shell, pull ropes are wound around the rotating wheel assemblies, and the pull ropes penetrate into the mounting sleeve to be connected with the moving blocks. The spiral spring is driven to be wound towards the rope winding wheel, tension can be applied to the rope winding wheel through self elasticity, then the moving block always applies stable tension force to the steel wire rope, the structure can effectively prevent the steel wire rope from loosening, it is ensured that the steel wire rope is in a tightened state all the time, and the accuracy of measured data is remarkably improved.
Owner:SHANDONG HAOZHOU MINING SAFETY EQUIP CO LTD
Adjustable mechanical sealing structure for wear part
Owner:ZHEJIANG YONGSHANG TECH CO LTD
Repeated unfolding and folding mechanism in space microgravity environment
PendingCN121376230AMachine part testingCosmonautic condition simulationsClassical mechanicsSpring force
The invention discloses a repeated unfolding and folding mechanism in a space microgravity environment, the repeated unfolding and folding mechanism comprises a transmission assembly, a winding assembly, a tensioning wheel assembly, a steel wire rope, an unfolding and folding spring and a load mounting interface, and the load mounting interface is mounted on a star; the unfolding and folding spring is fixedly connected between the transmission assembly and the load mounting interface; one end of the steel wire rope is fixedly mounted on the winding assembly, the other end is fixedly connected with the load mounting interface, and the middle part bypasses the tensioning wheel assembly; the tensioning wheel assembly is used for tensioning the steel wire rope; when the transmission assembly drives the winding assembly to rotate forwards, the steel wire rope is wound around the winding assembly, the unfolding and folding spring is compressed by winding the steel wire rope, and the unfolding and folding spring is folded; when the transmission assembly drives the winding assembly to rotate reversely, the steel wire rope is released from the winding assembly, and the unfolding and folding spring stretches under the action of spring force. The mechanism is suitable for unfolding and folding actions of load equipment in a space microgravity environment, and has the characteristics of repeated unfolding and folding and adjustable speed.
Owner:LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH