77results about How to "Adjust spacing" patented technology

The invention discloses a pressure relief port assembly of a gas insulated cabinet. The assembly comprises a protection support welding cylinder, a pressure relief membrane, a sealed O-shaped ring and a sealed compaction member. The protection support welding cylinder is sealedly welded at an outer surface of a gas tank; one end of the protection support welding cylinder is a welding end and the other end is a sealed installation end; and the two ends respectively have openings. an outer edge of the pressure relief membrane is covered by the sealed O-shaped ring and is fastened at the sealed installation end of the protection support welding cylinder by the sealed compaction member. According to the invention, the assembly is suitable for standardized and batch production of port assemblies; qualities and sealing performances of the port assemblies are improved; and it is convenient for flexible arrangements and combination of the port assemblies as well as adjustments of heights and spacings of the port assemblies; besides, the labor intensity of assembly and production workers at the production site is improved and the production efficiency is enhanced.

The invention relates to a measurable ultrasonic probe adjusting seat. The measurable ultrasonic probe adjusting seat comprises a fixed seat, wherein an eccentric distance adjusting seat which is used for adjusting an angle of a probe is arranged in the fixed seat in a rotating manner, a space adjusting seat which is used for adjusting a space between the probe and a steel pipe is arranged in the eccentric distance adjusting seat in a sliding manner, the space adjusting seat is provided with a probe through hole which is used for installing the ultrasonic probe, the top surface of the fixed seat is provided with an eccentric distance dial plate, and the top surface of the eccentric distance adjusting seat is provided with a scale pointer which is matched with the eccentric distance dial plate; the top surface of the space adjusting seat is provided with a space dial plate, and an adjusting screw which is used for controlling the height of the space adjusting seat is provided with a scale pointer which is matched with the space dial plate. By adopting the measurable ultrasonic probe adjusting seat, not only can the angle and distance of the probe relative to the steel pipe be adjusted, but also the precise value can be measured through the dial plate.

The invention discloses an adjustable steel plate surface polishing and derusting device, and relates to the technical field of steel plate polishing. The adjustable steel plate surface polishing and derusting device comprises a support frame, wherein a double-shaft motor is arranged in a motor frame; a clamping mechanism driven by a horizontal reciprocator and used for clamping a steel plate is arranged in the support frame; two adjusting mechanisms are in drive connection onto the double-shaft motor; polishing rollers for polishing the steel plate are in transmission connection onto the two adjusting mechanisms; and drive mechanisms for driving the polishing rollers are arranged on the adjusting mechanisms. According to the adjustable steel plate surface polishing and derusting device provided by the invention, the steel plate can be firmly clamped and fixed through the arranged clamping mechanisms, and the arranged horizontal reciprocator drives the steel plate to horizontally move back and forth, so that a comprehensive polishing effect on the steel plate through the rotating polishing rollers is achieved; the gap between the two polishing rollers can be quickly adjusted through the arranged adjusting mechanisms so as to adapt to the thickness of the steel plate; and a polishing pressing force of the steel plate can be further adjusted through the adjusting mechanisms, so that a derusting effect of the steel plate is sufficient and thorough, the convenience in adjusting is realized, and the application range is wide.

The invention discloses a sliding rail tool-installation-free front support for a server. The sliding rail tool-installation-free front support for the server comprises a sliding rail front installing support, a clamping hook, a rack locating post, a support sliding block and a first location locking elastic piece, wherein one end of the sliding rail front installing support is provided with a support vertical bending surface, the clamping hook is fixedly connected on the support vertical bending surface, and the support vertical bending surface is provided with two locating post holes; one end of the support sliding block is provided with a sliding block vertical bending surface, and the sliding block vertical bending surface is provided with two locating post bases; the first location locking elastic piece comprises a pair of first hook tooth arms which are symmetrically distributed, and each first hook tooth arm comprises a first hook tooth and a second hook tooth which are symmetrically arranged; and the support sliding block is arranged on the sliding rail front installing support in a sliding way by a step rivet, one ends of the rack locating posts are fixedly arranged in the locating post bases, and the other ends of the rack locating posts can stretch out of the locating post holes. According to the sliding rail tool-installation-free front support for the server, disclosed by the invention, a sliding rail for the server can be effectively and fixedly arranged on a rack, the tool-free installation can be realized, the operation is simple, the use is convenient, and the sliding rail tool-installation-free front support can be popularized to use.

The invention discloses an overturning device for detecting auto parts, which comprises a rotating plate, a supporting mechanism and a rotating mechanism. The supporting mechanism comprises an upper fixing rod, a lower fixing rod, a supporting rod and a positioning rod. Arranged in parallel, the rotating mechanism includes a horizontal plate, a turntable, a baffle and a first motor, the horizontal plate is rotatably connected above the upper fixed rod through a connecting shaft, a baffle and a first motor are arranged on the top surface of the horizontal plate, and the first motor The front face of the front end is connected with a limit block, and the limit block is fixedly connected to the center of the rotating plate. Two groups of horizontal sliding mechanisms are arranged symmetrically on the rotating plate, and the horizontal sliding mechanisms are equipped with cantilevers, and the cantilevers are equipped with clamping mechanisms. The invention is simple in structure and strong in practicability, not only improves the stability of the entire overturning device, prevents shaking after the auto parts are clamped and affects the detection efficiency, but also increases the working range of the overturning device and improves the detection speed of the auto parts.

The invention discloses a stevia rebaudiana disleaving device which comprises a rack, wherein a feeding hole is formed in one end of the rack; a stem outlet and a leaf outlet are formed in the other end of the rack; a feeding compression roller group, a disleaving roller and a discharging compression roller group are sequentially arranged in the rack; the feeding compression roller group and the discharging compression roller group comprise upper compression rollers and lower compression rollers; the upper compression rollers are fixedly connected with an elastic device arranged on the top of the rack by virtue of a connecting rod; a fixing rod is tightly arranged on the connecting rod in a sleeving manner; the fixing rod is fixedly connected with the side wall of the rack; multiple disleaving knives are arranged on the outer circumference of the disleaving roller; and the adjacent disleaving knives are arranged in a staggered mode. According to the cutting effects of the staggered disleaving knives, leaf and stem separation can be conveniently, rapidly and efficiently finished at a high speed, leaves are completely removed, the device hardly has impurity residue and is high in disleaving speed, and the manual labor is saved.

The invention belongs to the surface treatment technology for machine tool guide rails, and particularly relates to a micro-nano composite texture guide rail and a preparation method thereof. The micro-nano composite texture guide rail comprises a fixed guide rail and a sliding guide rail, the fixed guide rail is located below the sliding guide rail, and the sliding guide rail can do reciprocatingmotion relative to the fixed guide rail. Multiple micro-texture grooves perpendicular to the sliding direction are formed in the surface, in contact with the sliding guide rail, of the fixed guide rail, and the micro-texture grooves are arranged evenly in a staggered manner. Correspondingly, multiple nano-texture grooves perpendicular to the sliding direction are formed in the surface, in contactwith the fixed guide rail, of the sliding guide rail, and the nano-texture grooves penetrate through the surface of the sliding guide rail. According to the micro-nano composite texture guide rail, the micro-texture grooves perpendicular to the sliding direction are formed in the fixed guide rail of the guide rail, lubricating oil can be stored, and grinding scraps can be collected; and the nano-texture grooves perpendicular to the sliding direction are formed in the sliding guide rail, forming of a lubricating oil film is facilitated, and therefore the functions of enhancing lubricating, reducing friction and improving the performance of the guide rail are achieved.

The invention relates to a dual-adjusting type feeding supporting device which comprises a base, a supporting seat and a lifting mechanism. The lifting mechanism comprises a box body, a supporting frame and a conveying mechanism, wherein the supporting frame and the conveying mechanism are arranged in the box body. The supporting seat is fixed to the top face of the box body and driven by the lifting mechanism to ascend and descend. The supporting frame comprises two supporting legs which are movably installed in a crossed mode. One ends of the two supporting legs are both movably installed on the top face of the box body. The other end of the first supporting leg is movably installed on the bottom face of the box body. The other end of the second supporting leg is arranged on a conveying belt of the conveying mechanism and abuts against a limiting block fixed to the conveying belt. A handle is arranged on the limiting block. The supporting frame is provided with a butterfly-shaped locking nut capable of keeping the current state of the supporting frame in a locking mode at the joint of the two supporting legs. At least one positioning pile is fixed to the top face of the box body. The feeding supporting device further comprises at least one stud corresponding to the positioning piles. The supporting seat is positioned above the top face of the box body through the studs, and the distance between the supporting seat and the base is adjusted by rotating the studs.

An embodiment of the invention provides a foldable display panel and display device. The display panel comprises a non-folding area and a folding area. The non-folding area comprises first pixels, first grid lines extending along a first direction and arranged along a second direction, first data lines extending along the second direction and arranged in the first direction and first grid drivingunits arranged in the second direction. The folding area comprises second pixels, second grid lines extending along the second direction and arranged in the first direction, second data lines extending along the first direction and arranged along the second direction and second grid driving units arranged along the first direction. According to the foldable display panel and display device, the grid driving units in driving arrays of the non-folding and folding areas are designed independently, the driving capability of the intermediate folding area can be improved effectively, and the displayperformance and reliability of the foldable display device are improved.

The invention relates to the field of surface treatment of machine tool guide rails, in particular to a composite micro-texture guide rail and a preparation method thereof. Aiming at the technical problem that the surface performance of a composite guide rail needs to be improved, the novel composite micro-texture guide rail is provided. According to the composite micro-texture guide rail, micro-texture grooves are formed in the contact surfaces of a fixed guide rail body and a sliding guide rail body, the micro-texture groove perpendicular to the sliding direction is machined on the surface of the fixed guide rail body, and can be used for storing lubricating oil and collecting grinding chips, the micro-texture groove parallel to the sliding direction is machined on the surface of the sliding guide rail body, due to the fact that the flow guiding and dynamic pressure effects of the lubricating oil are achieved, the formation of a lubricating oil film is facilitated, and then the effects of enhancing lubrication, reducing friction and improving the performance of the guide rail are achieved.

The invention discloses a hydraulic lifting-type building rebar equidistant automatic cutting device. The hydraulic lifting-type building rebar equidistant automatic cutting device comprises a base, adevice box, cutting machines, a ball screw rod, a left screw sleeve and a right screw sleeve; the device box is fixedly connected with the position between guiding mounting lugs located on the left side and the right side through screws, a plurality of sets of fixing rod sleeves are slidably mounted on a sliding rod, and the cutting machines are arranged on the lower sides of the fixing rod sleeves; and fixing rods are welded to the upper sides of the left screw sleeve and the right screw sleeve. The hydraulic lifting-type building rebar equidistant automatic cutting device can meet differentlengths of rebars and is convenient to adjust, the universality of the device is high, the distance between the cutting machines during cutting can be adjusted at will, the rebars can be cut into short steel bars with the required various lengths, and manual holding the rebars by hands is not required during cutting, so that the risk that an operator is accidentally injured by the cutting machines is effectively reduced, the operation safety is greatly improved, operation is easy, and the practicability is high.

The invention discloses a building formwork connecting structure for civil engineering. The building formwork connecting structure comprises a first formwork body, a pouring groove, a first partition, a second formwork body, a second partition, a slot, a connecting limiting mechanism and an interval jacking mechanism. According to the building formwork connecting structure, the connecting limiting mechanism is arranged on the left end of the first formwork body, a jacking block and a sliding rod are embedded into the inner side of the slot, after the jacking block is embedded into the inner side of a limiting groove, a limiting rod and the limiting groove are buckled with each other, then the sliding rod is driven to move to the right end by a push rod, and the limiting rod is tightly attached to the inner wall of the limiting groove, so that the advantage that the first formwork body and the second formwork body can be rapidly connected with each other is achieved; and the interval jacking mechanism is arranged on the upper end of the first formwork body, and a certain distance can be kept between the first formwork body and the second formwork body through the jacking block, so that the effect that the first formwork body and the second formwork body can be stably fixed is achieved.

The invention discloses a screw-lifting-type building steel bar equal-distance automatic cutting device which comprises a base, a device box, cutting machines, a ball screw, a left screw sleeve and aright screw sleeve, wherein the device box is fixedly connected between guiding-mounting lugs positioned on the left and right sides through screws; a plurality of groups of fixing rod sleeves are slidably mounted on a sliding rod; the cutting machines are arranged on the lower sides of the fixing rod sleeves; and fixing rods are welded with the upper sides of both the left screw sleeve and the right screw sleeve. The screw-lifting-type building steel bar equal-distance automatic cutting device can meets the requirements of steel bars of different lengths and is convenient to adjust; the university of the screw-lifting-type building steel bar equal-distance automatic cutting device is high; furthermore, the spaces among the cutting machines can be randomly adjusted in the cutting course and a steel bar can be cut into required short steel bars of various lengths; besides, the steel bar need not be manually held in the cutting course, thereby effectively reducing the risk that operatingpersonnel are accidentally injured by the cutting machines and greatly improving the operating safety; and the operation is simple and the practicability is high.

The invention belongs to the technical field of shoulder exercise. The invention particularly relates to a shoulder exerciser for rehabilitation. For the problem that an existing shoulder joint exercising instrument is inconvenient to use, the exercise effect is poor, the application range is relatively small, the invention proposes the following scheme, the exerciser comprises two stabilizing frames, the same top plate is fixedly mounted at the tops of the two stabilizing frames; limiting frames are fixedly mounted on the sides, close to each other, of the two stabilizing frames; the two limiting frames are connected with the same tension plate in a sliding manner; the tops of the two tension plates are fixedly connected with ends of steel wire pull ropes, the other ends of the two steelwire pull ropes are fixedly connected with balance weight structures, the two balance weight structures are slidably connected with the two stabilizing frames respectively, the top plate and the stabilizing frames are provided with a plurality of guide wheels, and the steel wire pull ropes are slidably connected with the guide wheels. The exerciser is convenient to use, the height and the distancebetween two pull rings can be adjusted, different use requirements can be met, and the use range is expanded.

The invention discloses a hoisting detection device for an air conditioner indoor unit. The hoisting detection device comprises an upper sliding rail assembly, connecting rods, a lower sliding rail assembly and suspenders, wherein the upper sliding rail assembly is arranged above the lower sliding rail assembly, upper sliding grooves are formed in the upper sliding rail assembly, upper sliding blocks are arranged in the upper sliding grooves, the upper end and the lower end of each connecting rod are connected with the corresponding upper sliding block and the lower sliding rail assembly respectively, lower sliding grooves are formed in the lower sliding rail assembly, lower sliding blocks are arranged in the lower sliding grooves, and the lower sliding blocks are connected with the upper ends of the suspenders respectively. According to the hoisting detection device for the air conditioner indoor unit, due to the fact that the upper sliding rail assembly and the lower sliding rail assembly are connected through the connecting rods, the separation distance between every two adjacent suspenders can be adjusted so that the hoisting detection device can be adaptive to the shapes and sizes of different air conditioner indoor units, and the hoisting detection device is simple in structure and low in cost.

The invention relates to an automatic profile separating and loading device based on a queue principle. The automatic profile separating and loading device comprises a rack, an ejecting mechanism, a clamping mechanism, a transverse shifting mechanism and a clamping and loading mechanism. The ejecting mechanism is used for carrying a profile raw material to be separated. The clamping mechanism is used for clamping other profiles outside the lowermost profile temporarily. The transverse shifting mechanism is used for carrying the lowermost profile and conveying the profile to the other side of aworktable board of the rack. The clamping and loading mechanism clamps and places the profile transversely shifted and transferred by the transverse shifting mechanism to an appointed position to achieve a loading purpose. The automatic profile separating and loading device separates a pile of stock profiles and transfers and loads the profiles automatically by matching follow-up mechanisms. Theautomatic profile separating and loading device is free from limit of manual loading, and can separate the pile of profiles quickly to load the profiles stably and quickly, so that the work efficiencyis improved.

The invention discloses a laser scanning device which comprises a laser array and a detector array which are respectively used for emitting laser beams to a target object and receiving the laser beamsreflected by the target object; the multi-layer scanning prism comprises a plurality of sub-scanning prisms, each sub-scanning prism comprises a plurality of scanning mirror surfaces, and the plurality of scanning mirror surfaces rotate around the same rotating shaft; wherein the normal of each scanning mirror surface and the rotating shaft form a space angle, and the angles of the formed space angles are not completely the same; and the control and processing circuit is used for controlling the laser array to emit a plurality of laser beams and controlling and driving the multi-layer scanning prism to rotate uninterruptedly so as to realize scanning of a target object. The vertical scanning view field angle of the scanning device can be effectively increased, the number of central scanning view field scanning lines can be effectively increased, and specific requirements of different application scenes are met.

The invention relates to a rocking handle type double-adjustable feeding supporting device. The device comprises a pedestal, a supporting base and a lifting mechanism, wherein the lifting mechanism comprises a box body, a supporting rack and a transmission mechanism; the box body is fixedly arranged on the pedestal, and the supporting base is fixedly arranged on the top face of the box body; the supporting rack is fixedly arranged in the bottom of the top face; the transmission mechanism, which is integrally mounted on the supporting rack, comprises a driving wheel, a driven wheel I, a driven wheel II and a conveyer belt; one side of the driving wheel is in engaging transmission with the driven wheel I while the relative other end of the driving wheel drives the driven wheel II to rotate through the conveyer belt, and the driving wheel drives the two driven wheels to mutually rotate in opposite directions; a rocking handle is arranged at the rotating center of the driving wheel; at least one positioning pile is fixedly arranged on the top face; the feeding supporting device further comprises at least one double-screw bolt corresponding to the at least one positioning pile; and the supporting base is positioned above the top face through the double-screw bolts, and the distance between the supporting base and the pedestal is adjusted by rotating the double-screw bolts.

The invention provides an imitating solid wood aluminum alloy floor adapted to mounting of multi-specification wood blocks. The imitating solid wood aluminum alloy floor is characterized in that a transverse upward tenon is formed at the left end part of an upper transverse tenon; a lower transverse tenon extends from the lower part of the right side of each floor block; two vertical downward tenons are formed at the right end part of the lower transverse tenon; an upper mortise and two lower mortises are formed in each floor block; the transverse upward tenon of one of two adjacent floor blocks sleeves the upper mortise in another floor block; the vertical downward tenons on one floor block are sleeved with or sleeve the lower mortises in another floor block; a vertical baffle plate is reversed L-shaped and inserted into a matched baffle plate mortise in each floor block; a plurality of wood blocks are positioned on the upper surfaces of the floor block; the side surface of one wooden block is close to the vertical baffle plate; the space between every two adjacent floor blocks can be adjusted; the vertical baffle strips can be replaced to be used in match with the wood blocks of different thickness.

The invention discloses a capacitive three-dimensional force sensor with an adjustable range, which is simple to operate, has high resolution and belongs to the technical field of sensors. The sensorcomprises an elastic carrier, a protective shell, a sealing end cover, a movable capacitor plate, a fixed capacitor plate, an adjusting cushion block, a stud, a differential nut and a dial, a groove is formed in the middle of the elastic carrier to form a cross-shaped groove and a cross-shaped beam structure; the cross-shaped groove is formed in the cross-shaped beam in a crossed manner; the movable capacitor plate and the fixed capacitor plate form a capacitance sensor; the movable capacitor plate and the fixed capacitor plate are respectively bonded on the cross-shaped groove and an adjusting cushion block, the adjusting cushion block is fixedly connected with the stud, a stud external thread and a differential nut internal thread form a differential thread pair, a differential nut external thread and an elastic carrier internal thread form a differential thread pair, and the rotary dial is connected with the differential nut external thread in a matching way; and the force measurement sensitivity and range of the sensor are obtained according to the initial distance between the fixed capacitor plate and the movable capacitor plate.

The invention discloses a thread stand of a sewing machine. The thread stand comprises a triangular support frame, wherein a casing pipe is welded to the top of the triangular support frame, the innerside of the casing pipe is sleeved with a height adjusting rod in a sliding manner, adjusting holes are formed in the side surface of the height adjusting rod in an equal interval manner, a first fixed bolt is connected to the outer side of the casing pipe in a penetration manner and is connected into the adjusting holes in a penetration manner; the outer side of the height adjusting rod is sleeved with a sliding block in a sliding manner, the sliding block is located above the casing pipe, and the outer side of the sliding block is connected into the adjusting holes in a penetration manner through a second fixed bolt. The thread stand is provided with the adjusting holes, so that the interval between a placement board and a thread clamping row can be adjusted at will; the integral heightof the thread stand can be adjusted, so that the thread stand can be applicable to the sewing machines with different heights; and a plurality of coil trays can be mounted on the placement board once, so that the multiple sewing machines can be simultaneously used, and the thread stand is strong in flexibility and simple in structure and has wide application prospects.

The invention relates to a dual-lifting type feeding clamping device which comprises a base, a support seat and a lifting mechanism. The lifting mechanism comprises a box, a supporting frame and a conveying mechanism, wherein the supporting frame and the conveying mechanism are both arranged in the box. The support seat is fixed to a top face of the box and is driven by the lifting mechanism to go up and down. The supporting frame comprises two support legs which are movably mounted in a scissor shape. One end of one support leg is arranged on a conveyor belt of the conveying mechanism, and a limiting block fixed on the conveyor belt abuts against the end of the support leg. A handle is arranged on the limiting block, and a butterfly-shaped lock nut capable of locking the current state of the supporting frame is arranged at the joint of the two support legs of the supporting frame. The support seat is positioned above the top face through cylindrical rods. The distance between the support seat and the base is adjusted by rotating levers of buckles. The support seat comprises a clamping plate, a supporting beam used for supporting multiple workpieces to be positioned, and two limiting columns fixed to the two opposite ends of the supporting beam. The clamping plate is locked on the supporting beam through a plurality of bolts with butterfly-shaped operating portions on the tops so that the workpieces can be clamped on the supporting beam.

The invention discloses a skateboard structure relative to different earthí»s surfaces. Wherein, the steering device mounted on the bottom of skateboard has a support device which has an elastic buffer main body for smoothing the bottom; said main body has a support part on which support rollers are mounted to make the support device own best support force and buffer safety both on the hard and soft ground; a adjusting device arranged between the skateboard and the steering device can adjust the position of support device to attain right space of support device and change the stability and flexibility of skateboard by adjusting the supported area.

The invention belongs to the technical field of potted plant light supplement, in particular to an LED light supplement device for potted plants. According to the technical scheme, the device comprises a disc type LED light supplement lamp; the bottom end of the disc type LED light supplement lamp is connected with connecting devices; the device further comprises a lamp panel clamp arranged between the connecting devices, and fixing bases arranged at the bottom end of the lamp panel clamp; the bottom end of the lamp panel clamp is connected with a first lamp panel clamp through the connecting devices and a connecting rod; the bottom end of the first lamp panel clamp is connected with a second lamp panel clamp through the connecting devices and the connecting rod; a clamped object is connected between the fixing bases; a clamping groove is formed in the lamp panel clamp; and an LED light supplementing lamp is clamped in the clamping groove. The LED light supplement device for the potted plants has the beneficial effects that the number of lamp panel clamps can be increased or decreased according to requirements, installation and replacement are convenient, the flexibility is high, and the effect of guaranteeing uniform light supplementing is achieved.

The invention discloses a graphite electrode end flattening device which comprises a bottom plate, a sliding mechanism, a lifting mechanism and a driving mechanism. A transverse plate is arranged in the middle of the top face of the bottom plate, the bottom face of the transverse plate is connected with the bottom plate through the sliding mechanism, a semicircular clamping plate is arranged above the transverse plate, a graphite electrode is arranged in the semicircular clamping plate, and the transverse plate is connected with the semicircular clamping plate through the lifting mechanism. A pair of L-shaped plates are arranged on the two sides of the top face of the bottom plate, a side plate is arranged on the outer side of the top face of each L-shaped plate, a linkage bearing is arranged in the middle of each side plate, a linkage shaft is inserted in each linkage bearing, an end flattening grinding disc is arranged at the inner end of each linkage shaft, and the bottom face of the bottom plate is connected with the two linkage shafts through the driving mechanism. The invention further discloses a using method of the graphite electrode end flattening device. According to the graphite electrode end flattening device and the using method thereof, through the cooperative use of all the mechanisms, the overall structural design is compact, the position of the graphite electrode can be conveniently adjusted in multiple directions, and the graphite electrode end flattening machining efficiency is further improved.

The invention relates to an adjustable feeding support device which comprises a base and a support seat fixed to the base. Positioning piles are fixed to the base. The adjustable feeding support device further comprises studs corresponding to the positioning piles. First screw holes and second screw holes corresponding to the first screw holes are formed in the bottoms of the positioning piles and the bottom of the support seat correspondingly. One end of each stud is inserted into the first screw hole of the corresponding positioning pile in a screwed mode, and the other end of each stud is inserted into the corresponding second screw hole of the support seat in a screwed mode. The support seat is positioned above the base through the studs, and the distance between the support seat and the base is adjusted by rotating the studs. The support seat comprises a clamping plate, a supporting beam and two limiting columns fixed to the two opposite ends of the supporting beam. Slide grooves are formed in the two opposite sides of the clamping plate. Accommodating grooves are formed in the opposite side faces of the two limiting columns, and two slide strips are arranged on the two opposite sides of the accommodating grooves and clamped in the two slide grooves correspondingly. The clamping plate is locked on the supporting beam through a plurality of bolts with butterfly-shaped operating portions on the tops.

The invention discloses an adjustable paper cutting device which comprises sliding rails, at least one paper cutting mechanism and an adjusting mechanism. The at least one paper cutting mechanism is slidably arranged on the sliding rails; the adjusting mechanism is installed on the paper cutting mechanisms and used for adjusting the distance between the paper cutting mechanisms; each paper cuttingmechanism comprises a paper cutter, an installation support and a rotary driving assembly; the paper cutters are installed on the installation supports; the installation supports are installed on thesliding rails in a sliding mode; the rotary driving assemblies are in power connection with the paper cutters and used for driving the paper cutters to rotate; the adjusting mechanism comprises linkage assemblies; the linkage assemblies are installed on the installation supports; and the linkage assemblies corresponding to the paper cutting mechanisms are hinged to one another. The device is provided with the multiple paper cutting mechanisms, so that the paper cutting efficiency is high; the paper cutting mechanisms are arranged on the sliding rails in a sliding mode, and the distance between the paper cutting mechanisms can be adjusted through the adjusting mechanism, so that the adjustable paper cutting device is suitable for cutting products with different specifications; and the linkage assemblies are arranged, so that synchronous adjustment of the distances can be achieved, adjustment is conducted conveniently and rapidly, and the distance consistency is good.