38results about How to "Avoid loose installation" patented technology

The invention discloses an electric drill with the drill bit diameter being adjustable. The electric drill is composed of a machine body assembly, a clutch sliding sleeve, a hydraulic adjusting assembly and an expandable drill bit. The expandable drill bit is adopted, the thickness of the drill bit can be adjusted through the oil charging amount according to the requirements, stepless gradually varied adjustment can be achieved, the machining requirement of holes within a certain range is met, the drill bit does not needed to be replaced, the situation of infirm mounting due to frequent drill bit replacement is avoided, and the working safety is improved; an output shaft is used for providing power for the hydraulic adjusting assembly and the expandable drill bit, power switching is achieved through the clutch sliding sleeve, the adjustment difficulty of the expandable drill bit is lowered, operation is more convenient, rapid and convenient, the part utilization rate is increased to the maximum, an existing structure can still be used, the machine body assembly does not need to be modified, and machining implementation is easier.

The invention provides a rotary wallboard leveling structure of a fabricated wall. The rotary wallboard leveling structure comprises a mounting seat, a connecting piece, a leveling piece and a hangingpiece, wherein the mounting seat is fixedly mounted on a wall base layer; the connecting piece is slidably connected to the mounting seat; a columnar protruding part is arranged on the connecting piece; the leveling piece comprises an adjusting plate and a screw rod; the screw rod is arranged on the protruding part in a penetrating mode; the screw rod is connected to an end plate of the protruding part through threads; a spring is arranged on the screw rod in a sleeving mode; a baffle is arranged at the end of the screw rod; one end of the spring abuts against the baffle, and the other end ofthe spring abuts against the back face of the end plate; and the hanging piece is fixedly mounted on a wallboard and hung on the adjusting plate. According to the rotary wallboard leveling structureof the fabricated wall, the adjusting distance is controlled accurately during wallboard leveling, and a wallboard mounting structure is stable and not prone to loosening.

The invention provides a kidney puncture device for nephrology which prevents the needle handle from slipping off during use. A vertical plate inserted into the fastening plate is fixed, airbag one is fixedly installed on the side of the backing plate close to the twist ring, a wedge-shaped block is fixedly connected to the inner wall of the twist ring, and airbag two is fixedly installed under the fastening plate, and the second airbag passes through The hollow ring and the ventilation tube are connected with the first air bag. When the twisted ring is rotated, the wedge-shaped block squeezes the fastening plate and the second air bag at the same time. The fastening plate is protruded inward and is pressed against the outer wall of the puncture needle handle to enhance the stability of the puncture needle handle. The gas in the second airbag is squeezed into the first airbag, and the volume of the first airbag becomes larger. Continue to push the fastening plate to further strengthen the clamping firmness. By setting the hollow ring, different airbags can be adjusted to ensure All fastening plates rest on the needle shaft.

The invention relates to a car rear wheel trim and adjacent component connecting structure. The car rear wheel trim and adjacent component connecting structure comprises a rear wheel trim, a rear wheel cover outer plate and a side body outer skin. A first clamping buckle and a second clamping buckle are arranged on the rear wheel trim. A first welding sealing face, a first clamping buckle installing receding face and a second clamping buckle installing hole are formed in the rear wheel cover outer plate. A second welding sealing face, a first clamping buckle installing hole and a glued sealing edge are arranged on the side body outer skin. The first welding sealing face of the rear wheel cover outer plate is attached to the second welding sealing face of the side body outer skin; the first clamping buckle of the rear wheel trim is matched with the first clamping buckle installing hole of the side body outer skin and corresponds to the first clamping buckle installing receding face of the rear wheel cover outer plate, and the second clamping buckle of the rear wheel trim is matched with the second clamping buckle installing hole of the rear wheel cover outer plate. The car rear wheel trim and adjacent component connecting structure is reliable in connection, solves the problems of water leakage and gas leakage, can avoid abnormal sounds of a vehicle body, and can solve the problem that gluing is difficult and uneven.

The invention discloses a lightning arrester stable mounting seat and an installation method thereof, and relates to a lightning arrester, which specifically includes a base and a protective shell installed on the base. The inside of the protective shell is poured and fixed on the base with a concrete seat. A mounting seat is fixed on the seat, and the middle part of the mounting seat is integrally formed with a mounting tube, the bottom end of the lightning rod is inserted into the mounting tube and fixed, and the top of the lightning rod protrudes above the protective shell through the shock absorbing shell. Compared with the traditional method of fixing by bolts, this technical solution realizes the fixing method without bolts, which is not only simple and convenient in operation, but also does not have the problem of bolt loosening, and has a good fixing effect on the protective shell.

The invention discloses a damping type prefabricated supporting structure for an indoor decoration floor, and belongs to the technical field of indoor decoration. The damping type prefabricated supporting structure comprises two supporting frames and a supporting mechanism. The two supporting frames are symmetrically arranged front and back, soft cushions are fixedly connected to the left side faces and the right side faces of the supporting frames, the supporting mechanism is fixedly connected to the lower surfaces of the supporting frames, a second reinforcing mechanism is arranged on the supporting mechanism, and the top end of the second reinforcing mechanism is arranged in a bearing plate. According to the damping type prefabricated supporting structure for the indoor decoration floor, by arranging the supporting mechanism, the heights of the supporting frames can be adjusted by utilizing the supporting mechanism, by arranging clamping blocks and clamping holes, the clamping blocks can be clamped into the clamping holes to fix sleeves and supporting columns, so that a T-shaped block is fixed when moving to any position, and at the moment, connecting rods can be effectively fixed. Therefore, the supporting frames and supporting plates can be effectively supported and reinforced, the situation of gradual deformation cannot occur in the using process, and the situation that aplurality of floors are uneven is avoided.

The invention relates to the field of video and audio technology, and discloses a video and audio encoder that avoids poor cable contact and loose installation. The left part is movably plugged with a plug-in column, and an L-shaped slot is provided above and below the left part of the housing. The outer end of the bar is movably connected with an elastic clip joint. To avoid poor cable contact and loose installation of video and audio encoders, when the plug-in column is sent into the plug-in slot, the contact plate is squeezed to cause the electromagnet to attract the rack to move, and cooperate with the magnetic gear to fix the position of the rack. This enables the elastic card joint to stably connect the plug-in column, and then pulls the air spring to negatively suck the dust in the plug-in slot when moving with the rack, thereby avoiding the occurrence of poor cable contact and ensuring that the cable will not be damaged after installation. There is looseness.