34results about How to "Improve anti-dumping effect" patented technology

The invention belongs to the field of coal mining supporting equipment, in particular to an anti-toppling safety type hydraulic support, comprising a bottom adjusting mechanism arranged on a support base, the bottom adjusting mechanism comprises rotating sleeves rotationally connected to the front end and the rear end of the support base, sliding sleeves are slidably connected into the rotating sleeves, inserting rods capable of stretching into the sliding sleeves on the next support base are slidably connected into the sliding sleeves, and a locking mechanism is connected between each rotating sleeve and the corresponding sliding sleeve. The problem that a hydraulic support is toppled due to the fact that a hydraulic support base sinks due to the fact that a working face bottom plate is loose can be solved.

The invention discloses a seedling raising and transporting system for cultivating plants with substrates, comprising a seedling pot placement mechanism, a transfer forklift assembly is arranged on the right side of the seedling pot placement mechanism, the seedling pot placement mechanism includes a moving frame, and the moving frame The interior is equipped with a support net plate through a height adjustment mechanism. The present invention is a seedling raising transfer system for substrate cultivation plants. By setting thrust pins, support rollers and fence strips, etc., it achieves high-efficiency transfer and good anti-dumping effects. , It solves the problem that the traditional seedling pots need to be manually carried and placed neatly when they are transferred, which is time-consuming, laborious and inefficient.

The invention discloses a multifunctional non-tilting cup which comprises a medicine storage cup cover, a cup body and a size-adjustable non- tilting cup holder, the medicine storage cup cover comprises a medicine cover, a medicine box and a medicine box base, the medicine box stores medicine in a separately mode through a partition plate, and the medicine cover is connected to the medicine box ina screwed mode. The medicine box base is fixed to the bottom of the medicine box, and is connected to an upper cup opening of a cup body in a screwed mode. The size-adjustable non- tilting cup holderincludes a telescopic cup body locking device and a negative pressure fixed base, a driving rotating ring is rotated, a telescopic locking plate is retracted or extended outwards, and cups of different sizes can be fixed. The negative pressure fixed base comprises a suction cup, an air bag and a sealing ring, and a sealing ring is rotated to block a lower ventilation hole C, and the suction cup is pressed to a supporting platform and the air bag is squeezed at the same time, and a negative pressure is generated in a cavity of the suction cup. The negative pressure fixed base is fixed on the supporting platform, and the sealing ring is rotated to open the lower ventilation hole C, and the air pressure inside and outside the cavity is uniform, and the adsorption is released. The multifunctional non-tilting cup integrates medicine storage, fixing different size cups and anti-tilting in one body, the functions are various, and the application range is wide.

The invention discloses an urban traffic construction interception control device, being very convenient for mounting and dismounting, being simple and convenient, at the same time, being good in theanti-dumping effect and being able to effectively prevent blowing down by gale and other problems. During the mounting process of the urban traffic construction interception control device, after being connected, and the only demand is to switch, and after mounting and locking, the reliability is high, and the urban traffic construction interception control device is stable and is easy to use. Atthe same time, the urban traffic construction interception control device is provided with a rotating acousto-optic warning component, which can improve the warning function of construction interception and prevent accidents. The urban traffic construction interception control device can also utilize solar energy to carry out power supply and effectively ensure the construction interception requirement of pavement at each position.

The invention discloses a traffic road surface warning device. The traffic road surface warning device of the present invention can not only realize the anti-dumping effect, but also use the wind blade to realize the rotation under the action of the wind. The warning effect is improved more obviously. In addition, the structure of the present invention is reasonable, the anti-dumping effect is remarkable, the installation is convenient and simple, and disassembly and assembly can be quickly realized, and it can be placed on any slope road surface. In addition, the structural design of the rotatable cover is reasonable, and there will be no strong reflective eyesight phenomenon on the driver, so as to prevent adverse effects on traffic.

The invention provides a mine explosion-proof low-voltage vacuum electromagnetic starter, and belongs to the technical field of electromagnetic starters. The mine explosion-proof low-voltage vacuum electromagnetic starter comprises an electromagnetic starter body, a vertical plate and a support, wherein the support comprises two base frames, an L-shaped fixed plate, a support block and a rolling wheel; each base frame comprises a first cross plate, inclined plates connected to the two ends of the first cross plate and arranged slantwise away from the first cross plate, and a second cross plateconnected with the inclined plates; one side of the L-shaped fixed plate is fixed to the first cross plates, and the other side of the L-shaped fixed plate is fixedly connected with the vertical plate; a first bolt hole is formed in each inclined plate; through grooves passing through the base frames are formed in the support block, and two vertically-distributed second bolt holes vertical to thethrough grooves and matched with the first bolt holes are formed in the support block; and the vertical height of each first bolt hole away from the corresponding first cross plate is greater than the vertical height of the lower second bolt hole away from the bottom of the rolling wheel, and less than the vertical height of the upper second bolt hole away from the bottom of the rolling wheel. The mine explosion-proof low-voltage vacuum electromagnetic starter is simple in structure, convenient to move, and good in anti-shock and anti-dumping effects.

The invention discloses an anti-collision and dumping artwork display platform, which comprises a base, a placing platform is arranged on the upper end of the base, a detachable transparent cover is arranged on the upper wall of the placing platform, and a A control mechanism, the control mechanism includes a placement chamber and a control chamber, the bottom of the placement chamber is fixedly connected with a detachable power supply, and the inner walls of the control chamber near both ends are respectively fixedly connected with two left guide plates and two right guide plates, The lower wall of the control chamber near the middle is connected with a liquid storage tank, and mercury liquid is installed inside the liquid storage tank; an anti-dumping mechanism is provided inside the base, and the anti-dumping mechanism includes two adjustment chambers, two The inner walls near the lower end of each of the adjustment chambers are fixedly connected with permanent magnet blocks, and the tops of the two adjustment chambers are respectively elastically connected with a left electromagnet and a right electromagnet through energized springs. The invention can effectively prevent the device from toppling over when it is bumped, resulting in damage to artworks.

The invention discloses an anti-toppling artwork display stand comprising a base and a placing plate. A glass cover is arranged on the upper wall of the placing plate; and the glass cover is connectedwith the placing plate through a fixing piece. Two anti-toppling mechanisms are jointly arranged on the base and the placing plate; each anti-toppling mechanism comprises a mounting cavity formed inthe base, the inner wall of the mounting cavity is elastically connected with a sliding plate through a tension spring, the upper wall of the sliding plate is fixedly connected with a connecting rod,and the connecting rod is slidably connected with the lower wall of the placing plate through a sliding piece. An adjusting cavity is formed in the placing plate, a balancing weight is elastically connected to the inner wall of the adjusting cavity through a reset spring; the side wall, close to the lower end, of each mounting cavity is communicated with the adjusting cavity through a connecting pipe, and the end, away from the reset spring, of the adjusting cavity is communicated with the outside through an exhaust port. Therefore, a situation that the device topples over when the glass coveris collided can be prevented, and the artwork and the glass cover can be protected.

Anti-falling type advertisement display rack includes a frame; an upright display board is arranged on the frame, the right end of the display board is elastically hinged with the frame by a torsion spring, the upper end of the display board is provided with a vertical rotation stop lever arranged above the display board, the frame is provided with a sliding bar vertically sliding above the rotation stopper, the lower end of the sliding bar is provided with a stopper, the stopper is provided with an inverted U-shaped opening groove horizontally penetrating the stopper, the upper end of the rotation stopper is arranged in the opening groove, and the front and rear ends of the stopper are arranged symmetrically before and after, and the wedge-shaped surface faces downward; The frame is provided with an anemometer arranged above the sliding rod and coaxially with the sliding rod, the anemometer is provided with a first rotating ring coaxially connected with the anemometer and disposed between the slide bar and the anemometer, The sliding rod is provided with a second rotating ring arranged on the upper end of the sliding rod and rotating coaxially with the sliding rod, a plurality offirst connecting rods with circumferential distribution are hinged on the first rotating ring, and a plurality of second connecting rods with circumferential distribution are hinged on the second rotating ring, and the first connecting rods correspond to the second connecting rods one by one and are hinged with each other.

The invention discloses a teacup with an anti-falling function. The teacup comprises a teacup body, and a groove is formed in the cup bottom of the teacup body. An annular suction cup is fixed to thecup bottom of the teacup body, a device block is arranged at the inner bottom of the teacup body, a cavity is formed in the device body, the interior of the cavity is divided into a first space and asecond space through a piston, and the lower end of the piston is connected with an abutting rod. A sliding cavity is formed between the groove and the inner bottom of the teacup body, the lower end of the abutting rod sequentially penetrates through the second space, the sliding cavity and the groove and is fixedly connected with an abutting plate, the upper end of the piston is elastically connected with the inner top of the first space through a spring, an annular cavity is formed around the groove, and the annular cavity is communicated with the sliding cavity through a plurality of air inlet channels. The teacup is reasonable in structure, the teacup can be firmly sucked on a table top when placed on the table top and is not likely to fall off, and tea residues at the cup bottom can be cleared up conveniently.