80results about How to "Optimize the fixing method" patented technology

The invention relates to the technical field of electric quantity metering, and discloses an electric quantity metering system which comprises a box body and an electric quantity metering device, a box cover is hinged to the position, close to the front face, of the top of the box body through a hinge, and a fixing mechanism is arranged at the top of the box body. A box cover is opened, an electric quantity metering device is placed at the bottom of the inner wall of a box body, then a screw rod is rotated, a second hinge frame moves upwards, one end of a first hinge frame is driven to move downwards, the other end of the first hinge frame moves towards the left side and the right side in opposite directions, and the two first hinge frames are further driven to move towards the surfaces of first guide rods in opposite directions; the second hinge rod drives a sliding block to move downwards, so that a pressing plate and a heat dissipation gasket are driven to move downwards, the top of the electric quantity metering device is pressed, the electric quantity metering device is compacted and fixed, the fixing mode is convenient, the operation time is short, and the practicability is high. And the heat dissipation gasket can effectively carry out heat dissipation treatment on the electric quantity metering device.

The invention discloses a structure and method for improving the assembly precision of a free space isolator in an optical module, the structure comprises a mounting seat and an optical fiber array connected to the mounting seat, one end of each optical fiber of the optical fiber array is connected with an optical fiber connector socket, the other end of each optical fiber is connected with a metal piece, a magnetic ring is coaxially embedded in the end part of the metal piece, and the magnetic ring is connected with the optical fiber connector socket. A Faraday rotation isolator is arranged in the magnetic ring, ejector pin assemblies are further arranged on the mounting base, the ejector pin assemblies and the optical fibers are coaxially arranged in a one-to-one mapping mode, each ejector pin assembly comprises an ejector pin sleeve connected to the mounting base, a spring is arranged in each ejector pin sleeve, and the ejector pin sleeves are connected to the mounting base. An ejector pin is coaxially inserted into the open end of the ejector pin sleeve, the spring is in contact with the ejector pin, and the ejector pin is in contact with the magnetic ring. According to the invention, the concentricity of the cured isolator is ensured.

The invention relates to a seeding device for saffron crocus planting, and aims to realize an efficient, accurate and automatic seeding process, the device comprises a blanking plate, a plurality of seeding mechanisms and a conveying system, each seeding mechanism is provided with a guide hopper, a plurality of brackets, an upper roller and a lower roller, the rollers are in contact with a conveying belt, and the conveying belt is provided with planting sheets; the saffron crocus corm sowing device is used for bearing and conveying saffron crocus corms, the device drives the rolling wheels and the conveying belt to rotate synchronously through the motor, stable conveying and accurate sowing of the saffron crocus corms are achieved, automation and high efficiency of the sowing process are achieved, the sowing efficiency is remarkably improved, and the labor intensity of workers is reduced; through accurate corm positioning and conveying, the integrity of the bud ends of the corms is guaranteed, and the germination rate and the growth quality after planting are improved; a stable and reliable conveying system and an optimized soil treatment mechanism are adopted, so that the continuity of the seeding process and the uniformity of soil coverage are ensured.

The utility model belongs to the technical field of a frame folding structure of a seated draw-bar box, and particularly relates to a frame folding structure of a seated draw-bar box, a frame comprises a main bracket and an auxiliary bracket which are hinged with each other, and the main bracket and the auxiliary bracket are both provided with wheels; a handle rod is arranged on the main bracket; a mounting base is fixedly arranged on the main support, connecting bases are arranged on the two sides of the auxiliary support, and the two connecting bases are rotationally connected to the two sides of the mounting base respectively; a transverse pin is arranged on the mounting seat, an arc-shaped groove is formed in the side edge of the connecting seat, limiting grooves are formed in the two ends of the arc-shaped groove, and the two ends of the transverse pin are limited in the corresponding arc-shaped groove or the limiting grooves; comprising a pushing piece which is connected with the transverse pin, an elastic piece provides force for the transverse pin to enter the limiting groove, the transverse pin is located in the limiting groove, and the frame is kept in an unfolded or folded state. When external force is applied, the pushing piece drives the transverse pin to break away from the limiting groove and enter the arc-shaped groove, and then the frame can be folded. The utility model provides a frame folding structure on which a draw-bar box can be seated.

The invention provides a backlight module and a display device, the backlight module comprises a back plate and a reflection cup, the back plate comprises a bottom plate and a side plate, the bottom plate and the side plate form a containing cavity, the reflection cup is arranged in the containing cavity, and the backlight module is characterized in that a reflection cup fixing structure is arranged on the side, close to the bottom plate, of the reflection cup and penetrates through the bottom plate; an anti-loosening structure used for preventing the reflection cup fixing structure from loosening is arranged on the side, away from the reflection cup, of the bottom plate. By optimizing the fixing mode of the reflecting cup, the problem that the reflecting cup tilts after reliability testing is solved, reworkability and fixing reliability of the reflecting cup are improved, and cost is saved.

The utility model provides a low-leakage-current dry reed relay and semiconductor test equipment, and relates to the technical field of relays. The low-leakage-current dry reed relay comprises at least one dry reed pipe assembly. Each dry reed pipe assembly comprises a dry reed pipe, a metal pipe, a first insulating layer and a second insulating layer. The reed switch is suspended in a first mounting cavity defined by the metal tube, the first insulating layer covers the outer surface of the reed switch, the second insulating layer is arranged between the first insulating layer and the metal tube, and the second insulating layer is a gas medium layer or a vacuum layer. According to the technical scheme, the first insulating layer covers the outer surface of the reed switch, and the reed switch is suspended in the first mounting cavity, so that the fixing mode of the reed switch and the metal tube is optimized, the insulation resistance of the reed switch can be improved, the leakage current of the low-leakage-current reed relay is reduced, the parasitic capacitance value between the reed switch and the metal tube is reduced, and the reliability of the low-leakage-current reed relay is improved. Therefore, the stable time of small signal measurement is shortened, and the performance of the low-leakage-current dry reed relay is optimized.

The invention discloses a rotating shaft mechanism, a design method thereof and electronic equipment, and belongs to the technical field of electronic equipment. The rotating shaft mechanism comprises a base, a first swing arm and a supporting block; the first swing arm is rotationally connected with the base, and the first swing arm can rotate between an unfolding position and a folding position relative to the base; when the first swing arm is located at the unfolding position, an angle formed between the first swing arm and the base is a flattening angle; the supporting block is located on the base and rigidly connected with the base, the first swing arm is provided with a first contact surface, the supporting block is provided with a second contact surface, and when the first swing arm is located at the unfolding position, the first contact surface abuts against the second contact surface; the position of the second contact surface on the base can be changed, so that the flattening angle is within a preset angle range. The electronic equipment comprises a first sub-shell, a second sub-shell and a rotating shaft mechanism. The reliability of the electronic equipment is guaranteed, and the yield of the electronic equipment or the rotating shaft mechanism is improved.

The present invention relates to the technical field of power tower protection, and discloses a safety protection structure for a power tower, comprising a power tower protection seat, wherein reflective strips are installed at both left and right ends of the front surface of the power tower protection seat, a plurality of support blocks are evenly installed at the lower edge of the front surface of the power tower protection seat, a partition component is arranged on the upper surface of the power tower protection seat, and a stabilizing component is arranged on the rear surface of the power tower protection seat. The present invention is provided with a stabilizing component, wherein a first mounting plate, a first docking rod, a second docking rod and a stabilizing plate in the stabilizing component form a triangle, and the power tower protection seat is supported by utilizing the principle that the triangular structure is the most stable, thereby avoiding the problem of the power tower protection seat being unstable when fixed in the soil layer; a stainless steel smooth rolling ball is installed on the outside of the connecting rod in the partition component, and together with the third connecting plate, snakes, squirrels and other animals can be blocked to prevent them from climbing over the power tower protection seat and climbing onto the power tower to affect power failure.

The Christmas tree base is secured by a base, which includes a mating chassis and a cover. The chassis includes a circular base plate and an annular sidewall on the base plate. One end of the outer wall of the chassis is recessed inward to form a first mounting groove, and a second mounting groove is also provided on the inner edge of the chassis. The inner sides of the first and second mounting grooves form a receiving cavity for the chassis. A downwardly recessed fixing groove is provided in the middle of the top of the cover, which is opposite to the receiving cavity. The two opposite ends of the inner wall of the fixing groove are provided with a first assembly port and a second assembly port. A fixing device is provided between the chassis and the cover. The fixing device includes a first fixing tube and a second fixing tube respectively provided inside the first and second assembly ports. The front ends of the first and second fixing tubes are provided with fixing teeth. An adjustment device is provided at the lower end of the first fixing tube. The adjustment device is a foot-operated ratchet stepping device. The tree base is fixed by stepping on the pedal to drive the fixing teeth on one side, making the fixing method more convenient.

The invention relates to the field of steel structure building construction, in particular to an assembly type steel structure building primary and secondary beam connecting structure and a construction technology. The technical problems that main beams and secondary beams of a steel structure building are mostly fixed through welding or bolts, when the main beams and the secondary beams are installed, the construction period is long, the construction difficulty is large, the installation precision cannot be controlled, and the construction efficiency is reduced are solved. Comprising a main beam, the cross section of the main beam is I-shaped, a connecting plate is arranged on the upper surface of the main beam, branch beams are arranged on the lower surface of the main beam, positioning mechanisms are arranged on the side faces of the main beam, limiting mechanisms are arranged on the side faces of the positioning mechanisms, and secondary beams are arranged on the side faces of the main beam and located between the two positioning mechanisms. By arranging the positioning mechanism, the positioning handle slides inwards to drive the two connecting pieces to slide oppositely, the two connecting pieces slide oppositely to clamp the secondary beam, the two connecting pieces slide oppositely to push the positioning column to penetrate through the secondary beam and the connecting piece on the other side, and at the moment, the positioning mechanism locks the position of the secondary beam.

The utility model discloses a fixing clamping plate which comprises a first arc-shaped clamping plate body and a second arc-shaped clamping plate body, two first mounting grooves are formed in one side of the first arc-shaped clamping plate body, L-shaped mounting frames are fixed in the first mounting grooves, a cylindrical rod is fixed between the two L-shaped mounting frames, two second mounting grooves are formed in one side of the second arc-shaped clamping plate body, and the cylindrical rod is fixed between the two second mounting grooves. And a connecting plate is fixed in the second mounting groove, and a round hole is formed in the connecting plate. During use, the affected part of a patient is placed on the first arc-shaped clamping plate, then the positioning rod is moved into the stroke groove, the second arc-shaped clamping plate is turned over, the second side plate and the first side plate are attached, then the shifting rod is loosened, the positioning rod is driven to be embedded into the positioning hole under the resilience force of the spring, and the first arc-shaped clamping plate and the second arc-shaped clamping plate are fixed; compared with an existing fixing mode of bolts and nuts, the fixing mode of the first arc-shaped clamping plate and the second arc-shaped clamping plate is more convenient and faster to use.

The utility model relates to a turnover type table top support which comprises a pushing handle frame, a supporting arm and a table top. The pushing handle frame is connected with the supporting arm through an I-shaped torque hinge, the pushing handle frame rotates through the I-shaped torque hinge, and the pushing handle frame is detachably connected with the pushing handle support; the pushing handle support is connected with a base of the supporting arm, and the base is connected with main body equipment through a mounting plate; an adapter plate is fixedly mounted on the bottom surface of the table top, and a cam sleeve is mounted on the adapter plate; the adapter plate is connected with the supporting face of the supporting arm through a rotating hinge, and a locker is installed on the supporting face of the supporting arm. When the table top rotates through the rotating hinge and reaches the state that the adapter plate is attached to the supporting face, the rotating pin of the locker penetrates into the long round hole of the cam sleeve, and locking of the adapter plate and the supporting face is achieved by pressing and rotating the locker. According to the foldable table top support, the turnover function is added to a common table top support in a fixed mode, the table top support is folded, and therefore great convenience is brought to transferring and transporting of equipment.

The utility model discloses an axial -flow type smoke exhaust fan, including first casing, first casing one side is provided with second casing, first casing is provided with third casing away from second casing one side, first casing inside fixed setting has the mounting bracket, the inboard middle part of mounting bracket is swingly provided with the impeller through the pivot, the one end fixed setting of impeller place pivot has transmission sleeve, the surface middle part fixed setting of impeller has first transmission block, first transmission block, transmission sleeve and impeller have common rotation center, second casing inside fixed setting has motor, the power output shaft end fixed setting of motor has second transmission block. The utility model for use effect is good, carries out modularization design to motor, impeller part, so can be more convenient when overhauling replacement, also can be convenient according to need series connection multiple impellers and use, so can improve the use effect of this device and the scope of application significantly.

The invention relates to the field of tricycles, in particular to a tricycle power steering device and a handlebar mechanism. When a handlebar of a tricycle needs to be disassembled, maintained and replaced, an operator needs to use a special tool to disassemble the handlebar, certain skills and experiences are needed, and particularly, the difficulty is higher for users who are not familiar with mechanical operation. Comprising a handlebar, one end of the handlebar is provided with a speed regulating mechanism, the middle of the handlebar is slidably connected with a locking seat, one side of the locking seat is slidably connected with two locking bolts, the other side of the locking seat is provided with a quick mounting mechanism, the lower side of the quick mounting mechanism is provided with an induction mechanism, and the lower side of the induction mechanism is provided with a steering mechanism. A fixing clamping plate is arranged on the lower side of the steering mechanism. By arranging the quick mounting mechanism, the unlocking handle is pressed downwards and twisted by 90 degrees, and the unlocking handle moves downwards to drive the two limiting blocks to slide reversely.

The utility model discloses a film-covered non-woven fabric winding device which comprises a mounting plate, a U-shaped plate is fixedly connected to the upper surface of the mounting plate, a winding roller is arranged on the inner side of the U-shaped plate, and a cleaning mechanism is arranged on the upper surface of the mounting plate. By arranging the cleaning mechanism, in the winding process of the film-coated non-woven fabric, the first motor drives the first rotating shaft to enable the first cleaning cotton to rotate, meanwhile, the first gear is meshed with the second gear to drive the second rotating shaft to enable the second cleaning cotton to rotate, and the first gear and the second gear rotate relatively to conduct friction cleaning on the surface of the film-coated non-woven fabric. Meanwhile, the static electricity eliminator on the upper surface of the square frame continuously works to eliminate static electricity, and the situation that dust and impurities are adsorbed by the non-woven fabric due to static electricity is avoided, so that the winding uniformity and stability are improved, and the safety of operators is guaranteed; the problem that in the prior art, the surface of the film-covered non-woven fabric is prone to being contaminated with impurities, and the winding quality is affected is effectively solved.

This utility model relates to a connector with a split snap-fit ​​structure, which employs a snap-fit ​​structure fixed on one side of the connector body; a stop structure fixed on the connector body on one side of the snap-fit ​​structure; and a cable tie through-hole structure on the other side of the connector body. The snap-fit ​​structure snaps into and fixes the entire connector; then a cable tie is inserted for secure binding. The connector snap-fit ​​improves the fixing method of the bracket base and cable tie, preventing the adapter from being loosely fixed after assembly and eliminating safety hazards such as falling off after installation. The connector snap-fit ​​product is designed with a slot structure and a slot positioning structure: after the slot structure is installed in place, it is fixed to the bracket base by the positioning structure, forming an inverted snap structure, thereby increasing the pull-out force of the connector snap-fit ​​and meeting the assembly strength requirements. The connector snap-fit ​​product design changes the traditional fixing method of the bracket base and cable tie.

The utility model relates to the technical field of encoders, in particular to a single-bearing type encoder shaft system structure, which is characterized in that a bearing inner ring is sleeved on a main shaft, the lower end of the main shaft is provided with a radial boss, and the radial boss is used for propping against the lower end surface of the bearing inner ring; the main shaft is provided with a thread matched with a locking nut above the radial boss, and the locking nut abuts against and is locked on the upper end face of the bearing inner ring; the rolling body abuts against the main body and the bearing inner ring. The rolling body comprises balls and pin rollers which are arranged alternately. According to the utility model, the bearing and the main body are integrated, and a traditional bearing outer ring is omitted; the design that the balls and the pin rollers are arranged alternately is adopted, a single-row bearing structure is achieved, and axial and radial gaps are effectively eliminated.

The utility model discloses a road warning adjustable guardrail which comprises a top plate and a rod body, a sleeve is arranged at the top of the top plate, an internal thread ring is arranged on the surface of the sleeve, an extension rod is inserted into the sleeve, the internal thread ring is in threaded connection with an extrusion screw rod, and a light reflecting sleeve is embedded in the outer portion of the extension rod. According to the road warning adjustable guardrail, the top of the top plate is fixedly connected with a sleeve, an internal thread ring is arranged outside the sleeve, an extension rod is inserted into the sleeve, and when the height of the extension rod is adjusted, an extrusion screw in the internal thread ring is screwed for fixation, so that the height of the extension rod can be adjusted according to the field requirements; the extension rod is adjusted and then fixedly connected through the extrusion screw, the situation that the height cannot be adjusted is avoided, the height can be adjusted according to the actual situation, the use effect is good, and functionality is high.

The utility model discloses a rotating platform for a tire conveying line, which comprises a conveying unit comprising a main conveying line and a plurality of transfer conveying lines, and a rotating unit comprising a base, the base is positioned at the intersection of the main conveying line and the plurality of transfer conveying lines, the top of the base is provided with a rotating table, the top of the rotating table is provided with a groove, and the rotating table is provided with a rotating shaft. A groove is formed in the base, a plurality of conveying rollers are arranged in the groove, an inner cavity is formed in the rotating table, a driving assembly used for driving the conveying rollers to rotate is arranged in the inner cavity, a plurality of mounting plates are fixed to the outer side of the base in the radial direction of the base at equal intervals, and fixing assemblies used for fixing the rotating table, the main conveying line and the transfer conveying line are arranged in the mounting plates. A plurality of transfer conveying lines can be arranged according to needs, the second motor is started to drive the rotating table to rotate, tires on the main conveying line are conveyed to the rotating table, and then the tires are conveyed to the transfer conveying lines at different positions through rotation of the rotating table to be transferred.

The utility model relates to a fire-fighting water pipe connector which comprises a first pipe head, a first reinforcing ring is fixedly installed on the right side of the first pipe head, a first connector is fixedly installed on the right side of the first reinforcing ring, and a second connector is movably installed on the right side of the first connector. A second reinforcing ring is fixedly installed on the right side of the second connector, a second pipe head is fixedly installed on the right side of the second reinforcing ring, a fastening mechanism is arranged in the first connector, two baffles are fixedly installed in the first connector, and a sealing ring is movably installed in the first connector. And a connecting ring is fixedly mounted on the left side of the second connector. According to the fire-fighting water pipe connector for fire fighting, by arranging the fastening mechanism, equipment has a better fixing effect, the fixing mode is more convenient, the traditional complex fixing mode is changed, test pieces for connecting and fixing the equipment are effectively saved, and the use efficiency is improved.

The LED lamp comprises a base and a supporting rod installed at the top of the base, an installation plate is fixedly installed at the top of the supporting rod, a rotating block is rotatably installed on the top face of the installation plate, a first sliding plate and a second sliding plate are installed in the rotating block in a sliding and penetrating mode, and an LED lamp body is hinged to one side of the first sliding plate. A connecting rod is hinged to one side of the second sliding plate, one end of the connecting rod is hinged to the LED lamp body, and a liftable friction assembly is arranged on the top face of the rotating block. The rotating block is rotated to drive the first sliding plate and the LED lamp body to rotate integrally, then the horizontal angle position of the LED lamp body is changed, the horizontal position of the LED lamp body is changed by controlling the first sliding plate and the second sliding plate to move at the same time, and the LED lamp body can be adjusted by only moving the second sliding plate. And the second sliding plate changes the angle between the LED lamp body and the first sliding plate through the connecting rod, so that the pitching angle of the LED lamp body is adjusted.

The utility model relates to the technical field of building construction, and discloses an unloading platform for a multi-span steel structure, which comprises an inner extending part, a plurality of outer extending parts, a plurality of inner extending parts and a plurality of outer extending parts, the straight beam is connected with at least two steel beams of the steel structure; two ends of the oblique beam are respectively connected with the straight beam and the main beam; the transverse fork joint consists of a transverse rod and a longitudinal rod which are vertically connected; the transverse rods are connected with the straight beams in parallel, and the longitudinal rods are connected with the main beams in parallel, so that the straight beams are vertically connected with the main beams to form a T-shaped stress structure; the straight beam is provided with a middle section which is detachably connected; according to the discharging platform for the multi-span steel structure, the straight beams are perpendicularly connected with the main beams through the transverse fork joints to form a T-shaped structural system, the length of the middle section of each straight beam can be adjusted according to the distance between the steel beams, and therefore the single discharging platform can be matched with the steel beams of different spans; the overall installation requirement of the outer frame steel structure is met, the discharging platform can be recycled in a complex and changeable steel structure system, and practicability is high.

The invention discloses a portable anti-breakthrough alarm fence which comprises a main body unit, the main body unit comprises a plurality of stand columns, a plurality of handrails are jointly fixed between the adjacent stand columns, a support is arranged at the tops of the stand columns, a first storage groove is formed in the bottom of the support, the stand columns can be embedded into the first storage groove, a positioning plate is arranged in the first storage groove and can abut against the stand columns, and the stand columns are arranged in the first storage groove; one side of the positioning plate is rotationally connected with a first screw rod, and the first screw rod penetrates through the support and is in threaded connection with the support. When the infrared sensor detects that a non-experimenter approaches, the buzzer is started through the controller to enable the warning lamp to give a flashing alarm to remind pedestrians to pay attention, and when the non-experimenter breaks through the fence, the buzzer and the warning lamp are started through the vibration sensor to enable the buzzer to give a voice alarm and the warning lamp to give a flashing alarm to remind pedestrians to pay attention. Testers are reminded to check field conditions in time, and non-testers are prevented from breaking through the fence.

The utility model discloses a kind of combined house building node fixed structures, including main girder, two side beams being arranged in the both sides of main girder, further include L-shaped connecting block and T-shaped connecting block, the both sides surface of main girder is fixed with two L-shaped connecting blocks symmetrically, and the end surface of side beam is provided with L-shaped connecting groove;The application is designed corresponding L-shaped connecting block, T-shaped connecting block, L-shaped connecting groove and T-shaped connecting groove on main girder and side beam, the sliding fit of main girder and side beam in connecting process is realized, not only effectively solve the transverse limiting problem, ensure the structure stability after connection, the tensile property of connection node is also significantly enhanced, the overall safety of building is improved, simultaneously, cooperate with the use of fixed plate and L-shaped fastening plate, and the positioning structure introduced in the fixing process, so that bolt hole can be quickly, accurately aligned, greatly simplify installation process, improve the operation convenience of fixed connection, also improve construction efficiency.

The utility model discloses a cyclone type paint mist collector, including water storage tank and machine body, the machine body is connected in the upper surface of water storage tank through the water leakage hole intercommunication, the lateral wall of machine body is connected with air inlet pipe and air outlet pipe, the inside of machine body is provided with cyclone fan. The utility model discloses, through set up water storage tank, machine body, air inlet pipe, air outlet pipe, cyclone fan, fixed frame, paint mist cotton, limit board, limit frame, water pump, water suction pipe, water pipe, water frame, shower nozzle, fixed plate, pull frame, filter screen, positioning frame, sliding block, positioning rod, pull plate and tension spring etc. cooperation, realized the function that paint mist cotton was disassembled and replaced fast and conveniently, improved the fixed mode of paint mist cotton in the prior art, so that can install and disassemble paint mist cotton quickly, thereby convenient for replacing paint mist cotton, save time and effort, can filter and secondary use water source simultaneously, save water resources, improved the practicality of paint mist collector.

This utility model relates to the field of packaging equipment technology and discloses a control box for packaging equipment, including a box body. Handles are symmetrically fixedly connected to both outer sides of the box body. A dust collector is installed through the left side of the top of the box body, and a connecting seat is fixedly connected to the right side of the top of the box body. A flexible opening and closing fixing component is provided at the front end of the box body. The fixing component includes a movable door. A slot is opened at the front end of the box body, and the left side of the movable door is movably hinged to the left side of the inner wall of the slot in the box body. This control box for packaging equipment optimizes the fixing method of the movable door by setting up a movable rod, movable door, movable frame, external seat, and pull block, ensuring that the movable door will not shift during protection and strengthening the firmness between the movable door and the box body. It solves the problem that the control box is inconvenient to open and close due to structural design issues, affecting operation and use, and that repeated opening and closing causes certain damage to the structure.

The positioning structure comprises a machine body and a beam frame which is in transmission connection with the surface of the machine body, supporting structures are arranged on the front face and the back face of the beam frame, each supporting structure comprises a connecting block which is fixedly connected with the front face and the back face of the beam frame, and the top of each connecting block is movably connected with a swing rod through a pin shaft. A clamping jaw is movably connected to the side, away from the connecting block, of the swing rod through a pin shaft, a transmission structure is arranged on the top of the beam frame, and the transmission structure can drive the swing rod to swing. The transmission structure drives the swing rod to swing, when the clamping jaw at the outer end of the swing rod makes contact with the surface of a material, the clamping jaw can be attached to the surface of the material with the pin shaft as the axis to conduct swing adjustment, and therefore the effect of improving the extrusion positioning effect is achieved. And a horizontally-moving plate is replaced for extrusion and fixation, and the situation that the extrusion strength is affected due to the irregular shape of the surface of a machined object is prevented.

The utility model provides a double digital display tension-compression spring testing machine, which comprises a stabilizing seat, the bottom end of the stabilizing seat is connected with supporting legs used for supporting and stabilizing, the surface of the stabilizing seat is provided with an induction mechanism used for measuring data and a supporting column used for supporting a structure, the top end of the supporting column is connected with a tension-compression mechanism, and the tension-compression mechanism is connected with the stabilizing seat. A first displayer and a second displayer are installed on one side of the supporting column. The tension and compression mechanism is arranged on the surfaces of the induction mechanism and the supporting column, a motor is matched with a threaded rod to provide conditions for movement of the lifting table, tension and compression experiments are facilitated, a bearing groove and a second hook on the surface of the lifting table provide conditions for fixing a spring, and the measurement precision is improved on the premise that the device is protected. A sliding clamping hole is matched with a limiting rod, so that position deviation caused by elastic force of a spring in the measurement process can be prevented, the use experience is improved, flexible adjustment conditions are provided, daily use of the whole device is facilitated, and the practicability of the device is improved.