172results about How to "Achieve stretch" patented technology

The invention relates to the technical field of bolt mounting equipment, in particular to an angle steel tower bolt perforation mounting method. By means of autonomous navigation of the installation robot and flexible operation of the mechanical arm, rapid positioning and taking-out of bolts and nuts are achieved, and the risk of manual climbing and operation is reduced. Accurate insertion and preliminary positioning of the bolt are ensured through accurate control of the mechanical arm, then the fastening effect is enhanced by combining impact tightening with the intermittent hammering technology, the fit clearance between the angle steel is effectively eliminated, and the bolt is prevented from loosening. The whole process is highly automatic, personal errors are reduced, and the mounting quality and the working safety are improved.

The invention discloses a finger module, a manipulator and a robot. The finger module comprises a finger base, and a knuckle assembly is rotationally connected with the finger base; the driving assembly comprises a driving component, a worm and a worm gear, the driving component is arranged on the finger base, the worm is arranged in the finger base and connected with an output shaft of the driving component, and the worm gear is connected with the worm in an engaged mode. The other end of the connecting rod component is in transmission connection with the knuckle assembly; the driving component is configured to drive the worm to rotate and drive the connecting rod component to rotate through the worm gear so as to drive the knuckle assembly to rotate relative to the finger base. By means of the large transmission ratio characteristic of worm gear and worm transmission, the original relatively small torque of the driving component is amplified, strong driving force is provided for rotation of the knuckle assemblies, the knuckle assemblies rotate relative to the finger base, bending and stretching movement of human finger joints is simulated, the finger module achieves actions such as bending and stretching, and therefore the flexibility of the finger module is improved. Therefore, various grabbing and operation tasks can be completed.

The invention relates to the technical field of bolt mounting equipment, in particular to an angle steel tower bolt perforation mounting tool, fastening equipment and a mounting robot. The hammering part is responsible for hammering the head of the bolt in the nut tightening process so that the head of the bolt can be attached to angle steel more tightly; and then the nut is gradually fastened on the bolt in an impact tightening manner by matching with the tightening part. The tightening part continuously rotates the nut to apply pre-tightening force, the hammering part hammers the head of the bolt in time, the tightening part and the hammering part jointly act to gradually reduce the fit clearance between the angle steel, so that the effect of fastening the angle steel through the bolt is achieved, and the stability of bolt connection is effectively improved.

The invention relates to the technical field of on-orbit assembly, in particular to a space structure on-orbit assembly auxiliary device which comprises a plurality of first connecting rods, a plurality of second connecting rods are hinged to one ends of the first connecting rods, and opening and closing assemblies used for unfolding the second connecting rods are arranged on the second connecting rods; the opening and closing assembly comprises a plurality of first hinge rods and third hinge rods, and each second hinge rod is provided with a sliding groove. A first sliding block and a second sliding block are arranged in each sliding groove in a sliding mode. Every two adjacent first sliding blocks are rotationally connected through a first hinge rod. Every two adjacent second sliding blocks are connected through a third hinge rod. And the first sliding block close to the side of the first connecting rod is rotationally connected with the first connecting rod through a first hinge rod. The second connecting rod located at the top end is provided with a rotating assembly used for providing rotating force. Through the automatic and intelligent control of the rotating motor, the dependence on manual operation is reduced, and the labor cost and the risk caused by the manual operation are reduced.

The utility model belongs to the technical field of earphone testing, and discloses a clamping force testing device which comprises a product fixing assembly, an attaching assembly, a driving assembly and a position detection assembly. The product fixing assembly is provided with a width-adjustable clamping groove, the clamping groove is configured to position a fixed part of a to-be-detected product in the width direction of the clamping groove, and the width of the clamping groove is adjustable; the attaching assembly comprises two attaching pieces arranged on the two sides of the product fixing assembly, and the attaching pieces are configured to make contact with the stretching part of the to-be-tested product; the driving assembly is configured to drive at least one of the two attaching pieces to move so that the distance between the two attaching pieces can be adjusted. The position detection assembly is configured to detect the distance between the two attaching pieces. The clamping force testing device provided by the utility model has relatively high testing accuracy.

The invention relates to the technical field of special film preparation, and discloses a transverse drawing machine heating system which comprises a supporting mechanism, the supporting mechanism comprises a first fixing frame, supporting legs are fixedly connected to the outer wall of the first fixing frame, and an infrared heating lamp is fixedly connected to the inner wall of the first fixing frame; a sliding groove is formed in the inner wall of the first fixing frame, in the operation process of transversely stretching the special films with different thicknesses and enabling the special films to reach different widths, the adjusting mechanism conveys the special films with different thicknesses to the auxiliary mechanism firstly, then an infrared heating lamp conducts heating treatment on the special films, and therefore the special films with different thicknesses can be obtained. And then the auxiliary mechanism performs a transverse stretching task on the special film, and meanwhile, the auxiliary mechanism can also uniformly clamp, fix and convey the two ends of the special film, so that the phenomenon that the local part of the film bears overlarge pressure due to unbalanced pressure of the clamp is prevented, and the stable quality of the transverse stretching operation of the special film is ensured.

The utility model relates to the technical field of bedding supplies, in particular to a three-dimensional (3D) air cushion pillow with height and hardness adjusted through inflation. The air cushion pillow is divided into a cervical vertebra bearing area and a head relaxing area, the head relaxing area is divided into a brain nest area and a peripheral supporting area, and the air cushion pillow further comprises an inflation adjusting device. According to the utility model, the three-dimensional partition design is adopted, the pillow effectively fits the human skeleton curve according to the ergonomic design, the height of the cervical vertebra bearing area is adjusted through the inflation adjusting device, uniform support is provided for the cervical vertebra, relaxation and soothing of the cervical vertebra are promoted, the pressure and fatigue of the neck are reduced, and the stretching of the cervical vertebra is realized; the cervical vertebra problem is effectively corrected. Meanwhile, the pillowcase of the air cushion pillow is made of different fabrics according to areas, the pillow inner is made of 3D materials and integrally formed through warp knitting, the upper face and the lower face are provided with meshes, the air permeability and comfort are higher, and the surface of the air cushion pillow is kept comfortable and dry through air circulation.

The utility model discloses a variable-friction self-resetting SMA damper, and belongs to the field of concrete building structures. According to the variable-friction self-resetting SMA damper, the vertical baffle, the first friction plate, the push-pull rod, the second friction plate, the friction plate, the SMA rod, the limiting device and the multiple friction sliding devices are arranged, so that the whole device can drive the friction sliding devices to move through the push-pull rod, and then the SMA rod is stretched; the friction force can be increased along with the increase of the external load, the SMA bars are always in a tension state no matter whether the structure is pulled or pressed, the tension resistance of the SMA bars can be fully exerted, and therefore the overall anti-seismic performance of the structure is improved.

The embodiment of the invention provides a winding needle, a winding device, battery manufacturing equipment and a winding method. The winding device comprises a winding needle, a pair of first clamping needles and at least one second clamping needle, the pair of first clamping needles are configured to move in the direction away from each other after the winding needle is pulled away from the electrode assembly so as to open the electrode assembly, and the second clamping needle is configured to move in the direction away from the electrode assembly in the process that the pair of first clamping needles open the electrode assembly. And the upper half part of the electrode assembly is supported. The winding needle comprises a winding needle body, a pair of first grooves are formed in the peripheral face of the winding needle body, the first grooves are used for containing first clamping needles, the pair of first grooves are formed in the peripheral direction of the winding needle body at intervals, at least one second groove is further formed in the peripheral face of the winding needle body, and the second grooves are used for containing second clamping needles. And the second grooves and the first grooves are arranged at intervals along the circumferential direction of the winding needle body. According to the technical scheme, the reliability of the battery can be improved.

The invention relates to the technical field of cable detection and analysis, and discloses a ring main unit and pole-mounted circuit breaker cable and wire stretching state electrical performance detection device which comprises a supporting table, a stretching assembly, a transmission assembly, a detection assembly, a regulation and control assembly, a retention assembly and a winding assembly. The stretching assembly comprises a conveying piece and a stretching piece which are oppositely arranged on the supporting table, the conveying piece is used for inputting a cable with a set length, the stretching piece is used for stretching the input cable, the conveying piece with the fixed position and the sliding stretching piece are arranged on the supporting table, the stretching piece slides on the supporting table, and when the retention assembly is not triggered, the cable is stretched. According to the cable stretching device, feeding of the cable is completed, when the retention assembly is triggered, the cable is fixed, and the cable is stretched in the state that the stretching piece continuously moves, so that the length consistency of cable stretching is further improved, namely, the data accuracy of electrical performance detection in the cable stretching state is improved.

The utility model relates to the technical field of yarn production and processing. An air covering machine cooling structure for wrap yarn production comprises a machine table, the machine table comprises a feeding table and a discharging table, a feeding mechanism is arranged on one side of the feeding table, the feeding mechanism comprises a roller fixed to the feeding table, the feeding mechanism further comprises yarn lifting rods fixed to the upper portion of the feeding table, each yarn lifting rod is internally provided with a cavity, and the roller is arranged in the cavity. A false twisting mechanism and a winding mechanism are arranged on the discharging table, the false twisting mechanism comprises a plurality of false twisters fixed to the discharging table, and a cooling mechanism is arranged between the feeding mechanism and the false twisting mechanism. According to the air covering machine cooling structure for wrap yarn production, yarn in the wrap yarn production process can be rapidly cooled, the application range is wide, and the air covering machine cooling structure can be matched with a heating device to stretch, cool and shape the yarn. The technical problems that in the prior art, no corresponding cooling structure exists in the wrap yarn production process of an air covering machine, yarn can only be cooled in air, the cooling speed is low, and rapid cooling and shaping cannot be achieved are solved.

The invention discloses a mechanical property testing environment box and a testing method, and the mechanical property testing environment box comprises an upper box body cover, a box body, a lower bottom plate, a control mechanism and a stretching mechanism; the upper box body cover, the box body and the lower bottom plate are detachably and hermetically connected; the stretching mechanism comprises an upper clamp, a lower clamp, a support frame, a threaded sleeve, a screw rod, a rotor mechanism and a stator mechanism; the upper clamp is fixedly connected with the upper box body cover; the lower clamp is fixedly connected with the upper end of the threaded sleeve; the upper part of the screw rod is a connecting part connected with the threaded sleeve; the lower end of the screw rod is pivoted with the lower bottom plate; a rotor mechanism is arranged at the lower part of the screw rod; the rotor mechanism comprises a coil winding rod fixedly connected with the screw rod; a stator mechanism comprising a strong magnet is arranged at a position, corresponding to the rotor mechanism, of the lower part of the inner wall of the box body; a coil of the coil winding rod is in circuit connection with the control mechanism through a lead hole of the lower bottom plate; according to the invention, the problem of gas leakage in the environment box caused by dynamic seal failure is avoided.

The present invention discloses a cantilevered centrifugal material performance testing machine system under ultra-gravity environment. It includes a centrifugal mainframe, a rotor system, an experimental chamber, a lifting system and an upper-driven spindle complex; the rotor system and the upper-driven spindle complex are installed in the experimental chamber, the bottom of the experimental chamber is installed on the device base, the centrifugal mainframe is installed on the lifting system and connected to the upper-driven spindle complex, the upper-driven spindle complex and the rotor system are driven and connected, the lifting system is installed on the device base and above the experimental chamber, and the lifting system is connected to the experimental cover; the hanging cup is equipped with a heat preservation device, the heat preservation device is equipped with a heating device, the heating device is equipped with a load-bearing device, and the hanging cup is hingedly suspended at the end of the rotating arm of the ultra-gravity centrifuge through a lifting ear. The present invention can realize high-throughput testing of material properties such as stretching, endurance, creep, fatigue, etc. under centrifugal ultra-gravity environment, can apply uniform stress gradient and non-uniform stress gradient to the sample, so as to simulate the working environment of the sample to the maximum extent, and is easy to operate and safe and reliable.

This utility model relates to the technical field of elevator car top guardrail equipment, and discloses a retractable guardrail for elevator car tops, including an elevator car top with a rectangular structure. First supports are fixedly connected to the four right angles of the elevator car top. First limiting cylinders are fixedly connected to the upper sides of multiple first supports. Threaded sleeves are fixedly connected to the bottom inner sides of multiple first limiting cylinders. Each threaded sleeve is threaded with a threaded rod, and a first support tube is rotatably connected to each threaded rod. This utility model allows the threaded rods to rotate by rotating a handwheel, causing the first support tubes to rise or fall from the first limiting cylinders. When the elevator is paused for maintenance, each first support can be raised; when the elevator is running normally, each first support can be retracted into the first limiting cylinder, thereby reducing the space occupied by the guardrail in the elevator shaft.

This utility model relates to the field of traditional Chinese medicine sowing technology, specifically a sowing row spacing adjustment device for traditional Chinese medicine. It includes a U-shaped frame, a track, and also includes adjusting block one and adjusting block two, horizontal plate one and horizontal plate two, a limiting groove and a limiting block. Movable seats are fixedly connected to the opposing surfaces of the two limiting blocks, and fixed seats are fixedly connected to the opposing surfaces of adjusting block one and adjusting block two. The inner walls of the two adjusting seats are rotatably connected to the same hinge rod one, and the inner walls of the two fixed seats are rotatably connected to the same hinge rod two. Multiple rotating shafts are rotatably connected to the upper surfaces of hinge rod one and hinge rod two. By rotating the handle, adjusting block one can slide on the track, thereby causing horizontal plate one to slide accordingly, thus realizing the rotation of hinge rod one and hinge rod two. When hinge rod one and hinge rod two rotate, they are stretched, thereby causing the rotating shafts and fixed blocks to move synchronously, thus achieving the adjustment of the spacing between the sowing tubes on the multiple fixed blocks.

The invention discloses a telescopic circuit board assembly and a preparation method thereof. The preparation method comprises the steps that a flexible circuit board is provided, the flexible circuit board comprises a first base layer and an inner side circuit layer which are stacked in the first direction, the flexible circuit board comprises a connection area and a telescopic area which are arranged in the second direction, and the inner side circuit layer in the connection area comprises an electric connection part; the telescopic area is used for deforming to form bending parts which are sequentially connected in the second direction; an outer side circuit board is arranged on the inner side circuit layer, the electric connection part is exposed out of the outer side circuit board, the telescopic area is used for enabling the electric connection part to stretch out and draw back relative to the outer side circuit board in the second direction during deformation and deformation recovery, and the outer side circuit board comprises a second base layer and an outer side circuit layer which are stacked in the first direction; the second base layer is located between the outer side circuit layer and the inner side circuit layer, and a groove is formed in the surface, away from the outer side circuit layer, of the second base layer and used for containing the bending part.

The utility model discloses a foldable LED-LCD screen with a tensile conductive circuit, which comprises a base, a first screen is connected above the base, a second screen is connected above the first screen through a hinge, a control box is arranged on one side of the first screen, a controller is arranged in the control box, the controller is electrically connected with a connecting wire, and the connecting wire is electrically connected with the first screen. The connecting wire is connected with a movable plate, the outer side of the connecting wire is connected with a connecting ring, one side of the outer side of the connecting ring is connected with a connecting rod, the connecting rod is connected with the movable plate, and the movable plate is connected with a fixed plate through a telescopic spring. Therefore, the connecting wire can be driven to move, the bent wire can be stretched, and stress and damage to the wire are reduced.

The utility model relates to a skin floating stretching structure which comprises a pair of stretching plates distributed in parallel, material hanging needles are installed on the stretching plates, and the two stretching plates are driven by an independent stretching mechanism to be close to or away from each other. A plurality of material hanging needles are mounted on the same stretching plate and are sequentially distributed in the long axis direction of the stretching plate, and each material hanging needle is driven by an independent floating stretching cylinder to horizontally move; the stretching mechanism comprises a bottom plate, a sliding rail seat, a stretching cylinder, a sliding rail and a fixing plate. Compared with the prior art, the skin stretching device has the advantages that the stretching mechanism is adopted to drive the stretching plate to achieve large-amplitude stretching and the floating stretching cylinder is adopted to drive the hanging needle to achieve small-amplitude floating stretching, so that the stretching amount can be adjusted according to different product characteristics, and the skin stretching device is suitable for most skin covering.

The invention discloses a cell stretcher, and relates to the technical field of cell mechanics, the cell stretcher comprises a support module, a plurality of stretching structures and a plurality of transmission devices, the stretching structures and the transmission devices are arranged on the support module, the support module is provided with an experiment station, the experiment station is used for arranging a basement membrane, and the basement membrane is arranged on the experiment station. Each stretching structure is provided with two movable ends which are oppositely arranged, the movable ends are used for being connected to a base film on an experiment station, the two movable ends on each stretching structure can be driven by a transmission device to be far away from or close to each other in one stretching direction, and the stretching directions corresponding to the stretching structures do not coincide with each other; the moving speed and the moving distance of each movable end can be adjusted. The cell stretcher not only can stretch cells in multiple directions, but also can adjust the stretching amplitude and frequency, and is wider in application range.

The invention relates to the technical field of clothes treatment equipment, in particular to a wrinkle removing device for clothes care equipment and the clothes care equipment, and aims to solve the technical problems that the wrinkle removing effect is poor, the function is single and the use experience of a user is affected due to the fact that an existing wrinkle removing device for the clothes care equipment only shakes clothes generally. Therefore, the wrinkle removing device comprises a shell, a draught fan and a rolling component, the draught fan is installed in the shell, an air inlet is formed in the shell, the rolling component is installed in the air inlet, and the draught fan can generate suction force from outside to inside at the air inlet so that the clothes can be adsorbed to the air inlet. Therefore, the part, directly facing the air inlet, of the clothes is tightly attached to the two end faces of the rolling component and the air inlet, and then rolling and stretching of the two end faces of the rolling component and the air inlet on the clothes are achieved when the wrinkle removing device slides relative to the clothes. Through the arrangement, the wrinkle removing efficiency of the wrinkle removing device is effectively improved, and the wrinkle removing effect is optimized.

The present invention discloses a mobile indoor ecological intelligent health care chair, comprising a movable health care chair body provided with a backrest, a mounting groove is provided on the top of the backrest of the health care chair body, a top support is provided above the mounting groove, and an embedded plate embedded in the mounting groove is provided at the bottom of the top support; the inner bottom of the mounting groove is connected with a vertical rod through a first driving mechanism, and a vertical double-axis cylinder is provided in the vertical rod. When the present invention is used, a mechanical massage process can be achieved on the back of people's shoulders through a massage rod; people's shoulders can be stretched and bent through the bulging first massage rubber layer and the bulging fourth massage rubber layer, and a massage and soothing shoulder can be achieved; the stretching of the connection between the neck and the head is achieved through the bulging third massage rubber layer, and the squeezing massage of people's necks is achieved through the bulging second massage rubber layer.

The utility model relates to the technical field of mortise and tenon keels, and discloses a mortise and tenon self-locking window keel which comprises a first transverse keel, a second transverse keel is connected into the first transverse keel in a sliding mode, vertical keels are arranged at the two ends of the second transverse keel, a clamping assembly is arranged in the first transverse keel, and the clamping assembly is connected with the first transverse keel in a sliding mode. A fixing rod is fixedly connected to the interior of the second transverse keel, a spring piece is arranged on the outer wall of the fixing rod, a fixing block is fixedly connected to the outer wall of the spring piece, a fixing shaft is fixedly connected to one side of the outer wall of the fixing block, and the outer wall of the fixing shaft is slidably connected to the interior of the first transverse keel. According to the utility model, firstly, the fixing shaft is pressed to be matched with the fixing rod, so that the problem that the length of the keel is difficult to adjust according to different windows to adapt to the size and the mounting requirement is solved, and the purposes of adjusting according to the actual size of the windows, improving the mounting flexibility and adaptability and reducing the mounting difficulty caused by size mismatching are achieved.

The utility model discloses a film two-way stretching device which comprises a circular workbench used for containing a film, a driving motor arranged on a bottom plate of the workbench, sliding grooves formed along the radius of the workbench, a plurality of fan-shaped sliding grooves distributed on the single side, and two sets of sliding grooves symmetrically arranged about the center line of the workbench. The bidirectional stretching assembly is installed in the sliding groove in a sliding mode, and a clamp for clamping the thin film is hinged to the upper half portion of the stretching assembly; and the pushing assembly is arranged on the lower end face of the circular workbench in a sliding mode and arranged relative to the lower half of the stretching assembly, and the pushing assembly is connected with the output end of the driving motor. According to the two-way film stretching device, the problem that horizontal plane stretching in the transverse direction or the longitudinal direction cannot be carried out at the same time in the prior art is solved.

The invention relates to the technical field of copper wire drawing, in particular to silver-plated copper wire auxiliary stretching equipment which comprises a machining table, a mounting bottom plate, first supports, a second support, a gear mounting disc, an extrusion wheel and the like, the mounting bottom plate is connected to one side of the machining table, the first supports are connected to the other side of the machining table, and the second support is connected to the mounting bottom plate; a pair of gear mounting discs are rotationally connected to the second support in a vertically symmetrical mode, the two gear mounting discs are in meshing transmission through gears, one gear mounting disc is connected with a self-locking adjusting locking mechanism, and a plurality of extrusion wheels with wire grooves are evenly and rotationally connected to the gear mounting disc in the circumferential direction. By adjusting the locking mechanism, the gear mounting disc can rotate, so that the extrusion wheels rotate along with the gear mounting disc, the upper extrusion wheel and the lower extrusion wheel which are provided with the same wire grooves are in contact to form a diameter through hole of the silver-plated copper wire, and the silver-plated copper wire is stretched and thinned into the required diameter under the pulling force of the take-up end.

The invention discloses a mechanical test method, a mechanical test environment box and an operation method thereof, and the mechanical test environment box comprises an upper box body cover, a box body, a lower bottom plate, a control mechanism and a stretching mechanism; the upper box body cover, the box body and the lower bottom plate are detachably and hermetically connected; the stretching mechanism comprises an upper clamp, a lower clamp, a support frame, a threaded sleeve, a screw rod, a rotor mechanism and a stator mechanism; an upper clamp for fixing the upper end of the sample is fixedly connected with the upper box body cover; a lower clamp for fixing the lower end of the sample is pivoted with the upper end of the screw rod; a threaded sleeve is arranged in the middle of the screw; a rotor mechanism comprising a coil winding rod fixedly connected with the screw rod is arranged at the lower part of the screw rod; a stator mechanism comprising a strong magnet is arranged at the lower part of the inner wall of the box body; a coil of the coil winding rod is in circuit connection with the control mechanism through a lead hole formed in the lower bottom plate; the supporting frame is used for being connected with a lower clamp. Or fixedly connected with the threaded sleeve. According to the invention, the problem of gas leakage in the environment box caused by dynamic seal failure is avoided.

The utility model belongs to the technical field of material strength detection, and discloses a multidirectional building material detection tool which comprises a base, and a workbench is arranged at the upper end of the base; a pair of bearing seats for placing reinforcing steel bars is symmetrically arranged at the upper end of the workbench; the workbench is further provided with a moving mechanism capable of controlling the two bearing bases to move relatively. A pressure mechanism capable of applying pressure to the reinforcing steel bars is arranged right above the bearing seat; a control box capable of controlling the whole machine to operate is further arranged on the workbench, and a control panel used for control is further arranged on the control box. And a dotting machine for marking reinforcing steel bars is also arranged on the workbench. According to the utility model, the utilization rate of detection equipment can be enhanced, multidirectional detection can be carried out, a plurality of steel bars can be simultaneously tested at one time, the detection time can be shortened, the detection efficiency is improved, and the accuracy of detection data is ensured.

The utility model discloses an adjustable cervical vertebra and lumbar vertebra traction rehabilitation bed which comprises a bed frame, a lumbar vertebra stretching device and a cervical vertebra stretching device. The lumbar vertebra stretching device is arranged at one end of the bed board and comprises a telescopic assembly and a foot fixing assembly, the telescopic assembly comprises a driving part and a telescopic part, the telescopic part is movably connected to the bed frame, the foot fixing assembly is fixed to the end, away from the bed board, of the telescopic part, and the driving part is arranged in the middle of the bed frame; the driving part can drive the telescopic part to stretch out and draw back. The cervical vertebra stretching device is arranged at the other end of the bed board and comprises a protection head sleeve and connecting ropes, and the two ends of the protection head sleeve are connected to the bed frame through the connecting ropes. According to the adjustable cervical vertebra and lumbar vertebra traction rehabilitation bed, the lumbar vertebra stretching device and the cervical vertebra stretching device are matched to stretch the cervical vertebra and the lumbar vertebra of a patient, manpower is saved, and meanwhile the stretching accuracy and consistency can be guaranteed.

The present invention relates to the field of gas monitoring and ventilation technology, and discloses a portable gas monitoring and ventilation device, including: an observation box, a pull rope is arranged between the front and rear ends of the observation box, an observation unit is arranged on the inner side of the observation box, a support unit is arranged on the inner bottom of the observation box, the observation unit includes a motor arranged on the inner side of the observation box, a rotating shaft is arranged at the output end of the motor, a fan blade is arranged on the outer side of the rotating shaft, an air exchange chamber matching the fan blade is opened on the inner side of the observation box, and a ventilation component is arranged at the rear end of the rotating shaft. Its beneficial effects are: entering the position where the observation component is located through the first ventilation pipe to filter and retain and observe the condition of the air, which is convenient for the staff to have a more intuitive understanding of the air at the monitoring site, the structure of the ventilation component can be driven to extend by the rotation of the rotating shaft, and the gas at different heights is absorbed and observed, and the observation component adjusts the filtering part according to the rotation of the rotating shaft to observe the gas conditions at different heights.

The utility model relates to foamed board processing technical field especially, relates to a kind of punching device for foamed board processing. Including workbench, the top of both ends of workbench is equipped with the limiting mechanism for positioning foamed board, limiting mechanism includes pressing plate, locating block, fixed block and reset spring, the outside of both ends top of workbench is slidably connected with pressing plate, the inside of both ends of pressing plate is slidably connected with locating block, locating block is slidably connected with workbench, the both ends of pressing plate and located at the top of locating block are provided with fixed block, and reset spring is fixed between the bottom of fixed block and locating block. The utility model provides a kind of punching device for foamed board processing, by the cooperation of workbench, pressing plate, locating block and punching mechanism, so as to be able to adjust the position of pressing plate on workbench, and the foamed board of different lengths is positioned, and the foamed board after positioning is punched by punching mechanism simultaneously.