19results about How to "Realize tightness adjustment" patented technology

The utility model provides a header of a harvester. The header of the harvester comprises dividers used for distributing crops. The ear picking device is arranged below the dividers and conveys the distributed crops into the header for further treatment; the ear picking device comprises ear picking parts which are arranged side by side; each ear picking part comprises two seedling pulling chain groups; the seedling pulling chain group comprises a first seedling pulling device and a second seedling pulling device which are arranged up and down, and the first seedling pulling device is arranged above the second seedling pulling device through a double-layer chain wheel; the first seedling pulling device comprises a first gear, the first seedling pulling chain is connected with the first gear and the double-layer chain wheel, and the first tensioning device is arranged in the middle of the first seedling pulling device, connected with the first seedling pulling chain and used for adjusting the tightness of the first seedling pulling chain; the first seedling pulling device is arranged on the first mounting seat; the second seedling pulling device comprises a second gear, the second seedling pulling chain is connected with the second gear and the double-layer chain wheel, and the second tensioning device is arranged in the middle of the second seedling pulling device, is in tooth connection with the second seedling pulling chain and is used for adjusting the tightness of the second seedling pulling chain; and the second seedling pulling device is arranged on the second mounting seat.

The utility model discloses an adjustable abrasive belt grinding device, and relates to the technical field of mechanical polishing equipment, a moving mechanism is used for driving an abrasive belt grinding mechanism to move horizontally, a lifting mechanism is used for driving the abrasive belt grinding mechanism to ascend and descend so as to adapt to the specification of a ground object, and a rotating structure is arranged to adjust the inclination angle of an abrasive belt in the grinding process. The curvature change of a polished object is adapted, rotation and axial displacement of the polished object are not relied on purely any more, and the situation of unbalanced polishing is reduced.

The utility model relates to the technical field of medical instruments, and provides a protective bandage which comprises a bandage body and an adjusting mechanism arranged on the bandage body, the adjusting mechanism comprises an adjusting piece and a containing cavity formed in the adjusting piece, a groove is formed in the adjusting piece in the length direction of the adjusting piece, and the containing cavity is communicated with the groove. The bandage body is inserted into the containing cavity in a penetrating mode, a plurality of penetrating holes are formed in the bandage body at intervals, an elastic rope is inserted into the penetrating holes in a penetrating mode, a fixing clamp is arranged on the adjusting mechanism, a first knot is arranged at one end of the elastic rope, and the other end of the elastic rope is clamped and fixed through the fixing clamp. By arranging the adjusting mechanism, when the tightness of the bandage body needs to be adjusted, the elastic ropes are manually pulled, the tightness of the bandage body can be adjusted for multiple times due to the arrangement of the multiple elastic ropes, the loosening function of the bandage body can be achieved, and the comfort of a patient can be improved under the condition that the wound recovery of the patient is not affected.

The utility model discloses a winding device for motor production, which comprises an adjusting mechanism and an adjusting motor mounted in the adjusting mechanism, a mounting mechanism is arranged at the bottom of the adjusting mechanism, a rotating motor is arranged on one side in the mounting mechanism, and the adjusting mechanism comprises an adjusting support. The adjusting mechanism comprises an adjusting support, adjusting sliding grooves are symmetrically formed in the adjusting support, the adjusting motor is fixedly installed in the adjusting support, the adjusting mechanism comprises an adjusting support, adjusting sliding grooves are symmetrically formed in the adjusting support, the adjusting motor is fixedly installed in the adjusting support, and the adjusting motor is fixedly installed in the adjusting support. By arranging the adjusting mechanism, an adjusting motor can be used for driving an adjusting gear to rotate, relative movement of two adjusting racks is achieved through the meshing effect between the adjusting gear and the adjusting racks, an adjusting connecting column drives a fixing plate and an adjusting rolling wheel to move relatively, and therefore tightness adjustment of the copper wire is achieved.

The utility model discloses a lens adjusting device and a lens module, and relates to the technical field of lens modules, and the lens adjusting device comprises a focusing ring and an adjusting screw rod. Wherein a gap with the adjustable size is formed in the disconnected position of the focusing ring, the focusing ring comprises a first connecting part and a second connecting part which are located on the two sides of the gap, the first connecting part is provided with a first threaded hole, and the second connecting part is provided with a second threaded hole; the adjusting screw rod comprises a threaded connecting part, and the threaded connecting part penetrates through the first threaded hole and then is in threaded connection with the second threaded hole so as to adjust the size of the gap. The lens adjusting device not only can ensure the clamping force requirement when the focusing ring and the lens are assembled, but also can realize the anti-falling of the adjusting screw rod after the lens adjusting device is taken and assembled from the lens, thereby ensuring the integrity of the whole accessory, greatly improving the assembly efficiency, and ensuring the multipurpose use stability of the focusing ring.

The utility model relates to the technical field of medical auxiliary instrument discloses an orthopedics nursing walking aid device, including horizontal support rod, the outside both sides of horizontal support rod are fixedly connected with support frame, the inside both sides of support frame are all slidingly connected with limit stop, the bottom fixedly connected with fixed link of limit stop, the outside both sides of support frame are all fixedly connected with position adjusting mechanism, the outside rear side of support frame is fixedly connected with tightness adjusting mechanism, in the utility model, through pressing rotary clamping plate, makes rotary clamping plate can extrude telescopic link, makes spring can produce deformation, can make rotary clamping plate drive clamping rod and the clamping groove outside fixed link separate, when adjusting to the appropriate position, through loosening rotary clamping plate, makes spring rebound, can make clamping rod and the clamping groove outside fixed link engage, can realize the position of fixed link.

A wave soldering jig with a positioning function comprises a base plate and a cover plate, a tin blocking frame is arranged on the periphery of the base plate, a plurality of guide columns are arranged at the top end of the tin blocking frame at intervals, a plurality of threaded holes are symmetrically formed in the inner bottom end of the base plate, bolts are arranged in the threaded holes, a fixing device is arranged on a screw rod of each bolt, and the cover plate is arranged on the base plate. The cover plate is provided with mounting holes in one-to-one correspondence with the guide columns, the cover plate and the base plate are fixed in an inserted mode, a plurality of through grooves are formed in the top end of the cover plate at equal intervals, and a positioning groove used for containing a circuit board is formed in the bottom end of the cover plate. According to the utility model, the positioning of the circuit board is realized through the cooperation of the bolt and the fixing device, the bolt and the fixing device are fastened through automatic equipment in the subsequent process, manual tightening is not needed, the chassis and the cover plate are fixed in an inserted manner, the assembly is rapid, and the production efficiency is effectively improved.

The utility model provides a shower room glass door adjustable guide block which comprises a guide block body used for containing a glass door, the guide block body is provided with at least one sliding rail used for containing the glass door, and the side, located on the sliding rail, of the guide block body is provided with at least one rolling wheel capable of abutting against one side of the glass door. An elastic block which can abut against the other side of the glass door is arranged on the other side, corresponding to the idler wheel, of the guide block body and located on the sliding rail, a guide groove is formed in the guide block body, and the elastic block can move along the guide groove so as to loosen and tighten the glass door. The glass door can stably move on the sliding rail, the problems of shaking and untight clamping are avoided, the elastic block on the guide block body can move along the guide groove, tightness adjustment of the glass door is achieved, operation is easy and convenient, glass cannot be scratched, and it is guaranteed that the two sides of the glass door are evenly supported.

The invention relates to the technical field of electrical element manufacturing, in particular to a conveying mechanism of a semiconductor chip mounter and the chip mounter, the conveying mechanism comprises two conveying mounting racks, an interval adjusting assembly and a positioning control assembly, the two conveying mounting racks are horizontally and symmetrically arranged through supporting legs, and conveying belts are movably arranged in the conveying mounting racks through guide assemblies; the guiding assembly comprises a tensioning wheel and two guiding wheels, the interval adjusting assembly comprises an interval control plate, the interval adjusting assembly is arranged between the two conveying mounting frames, when the interval between the two conveying mounting frames needs to be adjusted in an adaptive mode, rapid adjusting and positioning can be conducted through the positioning control assembly, and during adjusting operation, the distance between the two conveying mounting frames can be adjusted rapidly. Positioning control is more accurate, operation is more convenient, in addition, the positioning control assembly can adjust and control the position change of the tensioning wheel to achieve tightness adjustment of the conveying belt, and after the conveying belt is used for long-time conveying, the problem of conveying clamping caused by looseness is avoided.

The utility model discloses a polishing device for processing a metal lamp panel, which comprises a stand column, a left driving plate and a right driving plate are vertically arranged on the stand column, an eccentric motor fixing plate is movably arranged on the left driving plate and the right driving plate, and an eccentric motor is fixedly arranged on the eccentric motor fixing plate. A first sliding rail is further installed on the eccentric motor fixing plate in the length direction of the eccentric motor fixing plate, a first sliding block is arranged on the first sliding rail in a sliding mode, a sliding plate is fixedly installed on the first sliding block, a polishing mechanism is installed on the sliding plate, an eccentric wheel is installed at the output end of the eccentric motor, and an eccentric shaft is arranged on the eccentric wheel. A connecting rod is detachably installed on the eccentric shaft, and the end, away from the eccentric shaft, of the connecting rod is connected with the polishing mechanism. The polishing device is simple in structure and reasonable in design, the polishing belt is adopted for polishing, the tightness of the polishing belt is adjustable, the grinding and polishing efficiency is high, and large-batch production and machining of products are facilitated.

The utility model provides a tightness adjusting device for electric car brake, which relates to the technical field of electric car brake, and comprises a rocker arm component, the rocker arm component comprises a mounting plate, two symmetrical fixing blocks are fixed on the mounting plate, fastening bolts are mounted on the fixing blocks, the fastening bolts are used for fixing the mounting plate on a brake cam shaft, and the rocker arm component is fixed on the mounting plate. And the fastening bolt is tightened. According to the tightness adjusting device for the electric car brake, a connecting block and a limiting rod can be pulled through a connecting column, the limiting rod extrudes an elastic piece through a fixing ring till the limiting rod leaves a limiting hole, at the moment, a second disc is rotated, the second disc drives a second positioning plate and a brake steel wire to move leftwards, and then the brake steel wire is pulled; and after adjustment is completed, the connecting column is loosened, the limiting rod moves into the limiting hole again under the elastic force of the elastic piece, limiting of the second disc is achieved, the device can achieve tightness adjustment of the brake without disassembling and assembling the bolt, and adjustment is rapid and convenient.

A belt conveyor concave arc section belt pressing device, comprising a front support frame, a belt pressing mechanism, a rear support frame arranged higher than the front support frame; the belt pressing mechanism comprises a main body frame, a front belt pressing wheel, a rear belt pressing wheel, a floating type belt pressing assembly and a covering belt; the main body frame is hinged to the top of the front support frame and the rear support frame, the front belt pressing wheel is rotatably installed at the front end of the main body frame, the rear belt pressing wheel is rotatably installed at the rear end of the main body frame, the floating type belt pressing assembly is arranged below the main body frame, and the floating type belt pressing assembly can make the covering belt always adhere to the material; a guide groove is arranged on the main body frame, and an adjusting rod for controlling the rear belt pressing wheel to move along the guide groove is arranged on the main body frame. The front belt pressing wheel and the rear belt pressing wheel drive the covering belt to form a circular rotating track, and the floating type belt pressing assembly presses the covering belt downward, so that the covering belt always adheres to the material on the conveying belt, and the belt pressing and the prevention of material scattering can be realized. A belt conveyor is also provided.

The safety net comprises a mounting plate and a safety net body, a storage box is welded to the top of the mounting plate, a storage groove is formed in the top of the right side of the storage box, the safety net body is arranged on the inner side of the storage groove, and the left end of the safety net body is fixedly connected with an adjusting unit arranged in the storage box. The adjusting unit is composed of a motor, a transmission shaft, a driving gear, a winding roller and a driven gear, the motor is fixedly mounted at the front end of the top of the mounting plate, according to the safety net capable of adjusting the tightness, the mounting plate is fixed to an area needing to be protected through external bolts, then rotation of the motor is adjusted through a controller, and therefore the safety net can adjust the tightness. According to the safety net, the winding roller rotates to tighten or loosen the safety net, the stability of the safety net is guaranteed through the design of the connecting lock catch, the safety net can be conveniently stored and released through the design of the winding and releasing groove, and the safety net has high practicability in practical application.

This utility model relates to a visual flipping fixture for UTG flexible glass, comprising a frame and a support wire for carrying the glass. The frame has a hollow structure and a wire-passing hole, through which the support wire is connected to the frame. This design allows for precise capture and positioning of the glass during automated optical inspection, preventing misjudgments or missed detections.

The utility model relates to the field of supports and hangers, in particular to a finished product support and hanger convenient to disassemble and assemble. The technical problems that most of existing finished product supports and hangers need to be matched by multiple persons, the whole hanger is well supported and then is installed, and the hanger is fixed, installed and connected, manpower resources are wasted due to supporting and installing work by multiple persons, and the use cost is increased are solved. According to the technical scheme, the finished product supporting and hanging frame convenient to disassemble and assemble comprises a fixing assembly, an adjusting assembly, a moving assembly, a hoisting assembly, a supporting assembly and a displacement assembly. According to the finished product supporting and hanging frame, the telescopic supporting frame structure is arranged and can stretch out and draw back so that the hoisting height can be adjusted conveniently, and meanwhile, the fixed external connecting structure is arranged above the finished product supporting and hanging frame for fixed connection. And the rotatable lantern ring telescopic rod structures are arranged between the telescopic supporting frame structures, so that nuts on the two sides can be rotated at the same time, the hoisting work can be completed by one person, and the hoisting height can be adjusted.

The utility model discloses a retroverted direct connection centrifugal fan which comprises a fan, a motor and a base, the fan is fixed on one side of the top of the base, a motor sliding rail is fixed on the other side of the top of the base, the motor is arranged on the other side of the base in a sliding mode, and the motor drives the fan to operate through a belt. A bolt matching groove is formed in one side of the motor sliding rail, a rolling shaft is installed on the surface of the bottom of the motor, the rolling shaft is matched with the surface of the side, not provided with the bolt matching groove, of the motor sliding rail, the motor is installed on the motor sliding rail through a locking mechanism, and the locking mechanism is composed of an anti-skid gasket and a locking bolt. According to the utility model, the rolling shaft for assisting movement is additionally arranged at the bottom of the motor, and meanwhile, the motor sliding rail is divided into two parts, one part is the bolt matching groove for matching with the bolt, and the other part is the smooth plane for matching with the rolling shaft at the bottom of the motor, so that the motor is convenient to move, and meanwhile, the fixation of the motor is not influenced.

The utility model discloses an adjustable physical therapy application device for each joint based on an energy film, which comprises a non-elastic base body, the front surface and the back surface of the non-elastic base body are configured to be magic tape hair surfaces, the front surface of the non-elastic base body is configured to be the magic tape hair surface, and the back surface of the non-elastic base body is configured to be a magic tape hook surface; the biological wave spectrum energy response film is arranged on the back surface of the non-elastic substrate; the freely-cut fabric long strips are connected to the left side and the right side of the non-elastic base body, and hook-and-loop fastener hook faces are arranged at the ends of the freely-cut fabric long strips. The hook-and-loop fastener loop surface is a baby hook-and-loop fastener loop surface, and the hook-and-loop fastener hook surface is a baby hook-and-loop fastener hook surface. According to the device disclosed by the utility model, the infant magic tape hook surface and the infant magic tape loop surface are mutually attached and connected, so that the tightness can be conveniently adjusted, the inner side surface of the fabric body can be pulled to move towards the skin of a human body, the physiotherapy application can be better adjusted, and the application can be more stably carried out.

The present invention provides a tightness adjustment device for a personalized sealing cover of a mask, which is composed of a D-ring, a ring seat, a bottom plate, an upper side plate, a tie hole, a hole plate, a lower side plate and a sliding lock assembly. The entire device is a hollow rectangular parallelepiped structure, wherein the ring seat, the bottom plate, the upper side plate, the hole plate and the lower side plate constitute five faces of the rectangular parallelepiped, and the remaining face is hollowed out, and a sliding lock assembly is provided inside the inner shape. The hole on the surface of the hole plate is a tie hole and penetrates the entire layer, and a semicircular D-ring is provided in the middle of the outer surface of the ring seat. The present invention is a lace adjustment device for devices such as masks and face masks. The tightness adjustment of the lace can be realized by one-hand operation. By utilizing the one-way locking principle of the ratchet, the lace is always kept in a tight state in a natural state; the setting of the stop block and the handle makes the loosening and tightening adjustment operation convenient. The entire adjustment device is ingeniously conceived and convenient and effective to operate. The present invention has a reasonable structural design, is easy to manufacture, and has a wide range of applications.