283results about How to "Clamp tightly" patented technology

The invention belongs to the material test technical field, to be more exactly, relates to a fatigue test sample clamp with high temperature resistance, high pressure resistance and aqueous corrosion resistance and an usage method thereof, which solves the problems of high temperature irresistance, high pressure irresistance, aqueous corrosion, large screw thread slit and poor centering in the current sample clamp. The clamp is provided with a column, a platform, an upper press cap, a lower press cap and a conversion adapter; the lower part of the column of the clamp is fixed on a cover of anautoclave, the upper part of the column of the clamp is fixed on the platform, and respectively and tightly pressed by lock nuts, the lower part of the conversion adapter is connected with a stretching shaft of a fatigue machine, through elevating the stretching shaft, an upper convex plate and a lower convex plate of the test sample are respectively placed in a platform groove and a conversion adapter groove, two dimidiate semirings are pressed on upper convex plate and the lower convex plate of the test sample, the upper press cap and the lower press cap are sleeved, the press cap bolts arescrewed for fixing two ends. The fatigue test sample clamp can be used in the autoclave for carrying out various fatigue tests (stress-stress, stress-tension, tension-tension and the like) under the high temperature high pressure solution environment, and has the advantages of simple structure and low cost.

A spring clamp includes a first and a second handle; a substantially L-shaped release link having an inner section transversely mounted in the first handle and an outer section located outside the first handle, and being pivotally turnably about a supporting point mounted in the first handle between the inner and the outer section of the release link; and a shaft having a front end fixedly connected to a movable jaw extended from a distal end of the second handle and a rear end obliquely extended through a hole on the inner section of the release link. To release the two handles of the spring clamp from an immovable position when clamping two workpieces together, a user needs only to downward push the outward projected outer section of the release link using one finger.

The invention discloses an indoor large flower pot carrying device, and belongs to the field of living furniture. The indoor large flower pot carrying device consists of a handle, a frame, a slide block, a back clamping plate, a back clamping handle, a front clamping handle, a linear bearing, a front clamping plate, a threaded sleeve, a threaded rod, wheels, a hand-operated handle, a hydraulic jack, an elevating rod and a grab bar, wherein the handle is connected to the frame; the elevating rod is fixedly connected with the slide block; the slide block is arranged in a frame sliding chute; the elevating rod is fixedly arranged above the hydraulic jack; the hydraulic jack is arranged above a frame bottom plate; the back clamping plate is fixed on the right side of the elevating rod; the front clamping plate is fixed on the right side of the elevating rod; the threaded sleeve is arranged on the front clamping plate; the threaded rod is arranged on the threaded sleeve; the front clamping handle is fixedly arranged at the front end of the threaded rod through the linear bearing; a vehicle body is arranged above the wheels. The indoor large flower pot carrying device has the beneficial effects that a flower pot is clamped through threaded connection, and self-locking property is realized, so that the flower pot can be clamped more tightly, the working efficiency is increased, and the labor force is reduced.

The invention discloses a valve clamping device. The valve clamping device comprises a first clamping component, a second clamping component and a fixing component. The fixing component is used for fixing the first clamping component and the second clamping component. The first clamping component comprises at least two first clamping arms. The second clamping component comprises a corresponding number of second clamping arms. A pair of clamps can be formed by each first clamping arm and the corresponding second clamping arm. The valve clamping device has the advantages that the valve clampingdevice can employ the smooth-transition top design, the high-clamping-stability clamping tooth design and the 'one-stripe-for-dualpurpose' fixing ring deign, so that damage to valves during movement of the clamping device is reduced, users capture the valves conveniently, and clamping performance is improved while damage to the valves is reduced; the overall structure of the clamping device has high machinability, and production and manufacture of factories are facilitated.

A gaming controller includes a main body and a support device. The support device includes a base member, a bracket assembly and a positioning member. The bracket assembly is installed on the base member and includes a first frame and a second frame. The first frame and the second frame are movable relative to the base member. The first frame includes plural positioning holes. The positioning member is installed on the base member and arranged between the positioning member and the second frame. The positioning member includes a positioning unit. While an operation state of the support device is switched from a storage state to a first usage state, the first frame is moved away from the base member. When a front end of the first frame is moved to a first location, the positioning unit is embedded in a first positioning hole.

A Roman blind structure includes a Roman blind made up of a telescopic upper beam, and a blind body of a proper length and width fixedly attached to the underside of the telescopic upper beam thereof wherein the blind body is provided with a plurality of long tubular tunnels equidistantly folded and seamed up from top to bottom at one side thereof for adjustable rods, each having a plurality of dividing grooves properly cut in equal space at the surface thereon, to be adapted therein respectively. At preset positions of the left and right sides of each long tubular tunnel are respectively located a retaining member with a C-shaped clamping part extending at one side thereof to clamp tight the adjustable rod adapted inside the long tubular tunnel thereby, and the retaining members are also equipped with cord-passage holes, each protruding levelly at one side of the C-shaped clamping part thereof, for pull cords to be sequentially led there-through before fixedly tied up to the bottommost cord-passage holes thereof. When the telescopic upper beam is properly adjusted to fit to a window frame, the adjustable rods are directly bent downwards by force along the dividing grooves to break off extra sections of the adjustable rods thereof without any other tools applied thereto, and an extra part of the adjusted blind body is collected either at the middle section or at both the left / right sides of the adjustable rods in wavy wrinkles, achieving versatile visual effects of the Roman blind as well as facilitating an easy and speedy assembly of the present invention.

A dust collector having a hose clamp, comprising a dust collection power head, a dust bucket and a hose; wherein the dust collection power head is arranged on the dust bucket, one end of the hose is in communication with the dust bucket; and the dust collector further comprises a hose clamp which is comprised of a first baffle, a second baffle and an elastic resetting member; at least one of the first baffle and the second baffle is a rotatable baffle, and a resetting force generated by the elastic resetting member acts on the rotatable baffle. Due to action of a torsional spring, the first and second baffles can always clamp the hose tightly while accommodating the hose. When the operator takes the hose down, the second baffle can be opened automatically to a certain angle along with the operator's action, so the hose can be taken out.

The invention relates to the field of PE pipes, and particularly relates to a PE pipe bending device facilitating packaging. The PE pipe bending device comprises a base, a bending mechanism, a cleaning mechanism, a storage mechanism, a limiting mechanism, a positioning mechanism and a swing mechanism. A fixing plate is installed through the base, and therefore the bending mechanism can be conveniently fixed and work, and PE pipes can be conveniently rolled and stored; meanwhile, the bending mechanism is locked in an abutting manner under the action of the limiting mechanism, and normal work ofthe bending mechanism is guaranteed; under work of the positioning mechanism, the PE pipes in the bent and rolled process can be conveniently positioned and guided, and the PE pipes can be conveniently stored and bent; meanwhile, the swing mechanism is driven by the bending mechanism to work, the positioning mechanism slides, and the PE pipes can be conveniently stored in order and in layers; andafter the cleaning mechanism cleans the PE pipes in the sliding process, dust and sundries attached to the side walls of the PE pipes are cleaned away, the cleaned dust and sundries fall into the storage mechanism to be stored, and meanwhile subsequent cleaning is facilitated.

A four-bar-linkage brake-included knee joint includes a knee carriage, first and second links rotatably coupled to the carriage, and a clamp member coupled to a joint body. The clamp member forms a through hole that receives an axle to couple the second links. A compression block is received in a rear portion of the joint body and is set in engagement with a back side of the clamp member. The clamp member forms a gap extending from the through hole of the clamp member to a bottom of the clamp member. When a heel of a prosthesis that includes the knee joint is put on the ground, a reaction force is induced in the prosthesis that causes the compression block to directly depress the clamp member thereby reducing the gap to have the clamp member tightly clamping the axle and thus preventing the axle from further rotation.

The invention relates to a PVC decorative board film laminating and unwinding mechanism which comprises a bottom plate, a first bearing pedestal and a second bearing pedestal; the first bearing pedestal is fixedly arranged on the bottom plate; the second bearing pedestal is arranged on the bottom plate and can move along the bottom plate to be close to or far from the first bearing pedestal; shortshafts are rotationally arranged in the first bearing pedestal and the second bearing pedestal in a penetrating manner correspondingly; threads are formed in the peripheries of one ends, close to each other, of the two short shafts correspondingly; the peripheries of the ends, close to each other, of the two short shafts are connected with adjusting nuts correspondingly and are sleeved with elastic clamping plugs correspondingly; the elastic clamping plugs are located on one sides, which are close to each other, of the two adjusting nuts; a film roll is coaxially arranged between the two short shafts; and under the action of external force, the adjusting nuts are tightened, and the adjusting nuts can axially push the corresponding elastic clamping plugs to stretch into and elastically abut against hole locations of the corresponding ends of the film roll. The PVC decorative board film laminating and unwinding mechanism has the advantages that the PVC decorative board film laminating and unwinding mechanism is simple in structure and convenient in use and operation, rapid disassembly, assembly and replacement of the film roll is facilitated, the film roll is located accurately andthe clamping is relatively stable.