386results about How to "Prevent side to side movement" patented technology

A quick-detach, free floating, two-piece forward hand guard assembly for a rifle, which includes an inner barrel nut adapted for connection to the rifle's receiver and an outer barrel nut telescopically received over the inner barrel nut and secured thereto to prevent rotation therebetween. The hand guard assembly also includes a top hand guard element engaged with and extending forwardly from the outer barrel nut in a laterally-stable cantilevered orientation above the rifle's barrel. A bottom hand guard element is matingly engaged with the top hand guard element for surrounding the bottom portion of the rifle's barrel and free-floats from the top hand guard element. A spring-loaded detent screw attaches the top and bottom hand guard elements together and also engages the inner barrel nut. For quick-detach barrel removal, the outer barrel nut may be hinged for clamshell action, with the inner barrel nut having a separable two-piece extension.

A carabiner provided with a load bearing apex portion having a rubber sleeve for preventing side-to-side slippage of said carabiner on a rounded handle of a mobile vehicle such as a stroller or shopping cart.

The invention relates to a pesticide spraying device, in particular to an efficient pesticide spraying device for pineapple planting, aiming at providing an efficient pesticide spraying device, which is high in spraying efficiency, uniform in spraying, large in spray range and good in damping effect, for pineapple planting. In order to solve the technical problems, the invention provides the efficient pesticide spraying device for pineapple planting. The efficient pesticide spraying device comprises a trolley, a right side plate, a guide plate, a spring, a placement plate, a sliding rail, a sliding block, a rolling shaft, a lifting rod, a movable block, a support rod, a guide sleeve, a guide rod, a bearing seat, and the like, wherein the support rod, the sliding rail and the right side plate are sequentially arranged on the trolley from left to right; the guide plate is arranged in the middle of the left side of the right side plate, and a guide hole is formed in the guide plate. The efficient pesticide spraying device fully utilizes the energy of the up and down vibration, caused by the unevenness of the ground in a process of pushing the trolley on a farmland, of an iron pesticide box; due to the buffer action of the spring, a damping effect is achieved.

A fire-rated head-of-wall assembly includes a header track having bendable tabs, a pair of which is configured to hold a wall stud in place relative to the header track. An upper wallboard piece abuts against the ceiling and a lower wallboard piece is spaced from the upper wallboard piece to form a gap. A fire-resistant material, such as mineral wool, is positioned within the gap. An outer wallboard piece spans across the gap.

The invention relates to drilling equipment, in particular to drilling equipment used before assembling of a storage cabinet. The technical problem to be solved is to how to provide the drilling equipment used before assembling of the storage cabinet, in which a storage cabinet wood board needing to be drilled can be automatically and intermittently replaced, the storage cabinet wood board can beautomatically drilled, and the drilled wood board can be automatically stored. The drilling equipment used before assembling of the storage cabinet comprises a rack, a motor, a discharging box, a sliding plate and the like; and the motor is installed in the middle of the lower portion of the rack through bolts, the discharging box used for storing plates is installed between the tops of the rack,and the sliding plate is arranged on the upper portion of the rack in a sliding mode and located below the discharging box. Through the motor, the sliding plate, an L-shaped push rod, a first connecting rod and the like, a plate needing to be drilled can be automatically replaced, the plate can be transported, and the fixed position of the plate can be drilled through a transmission mechanism, a sector gear, a first rotating shaft, a placing plate, an electric drill and the like.

The invention discloses a pilot proportional reversing valve, which comprises a main valve body and a pilot control valve arranged on the main valve body, wherein both ends of the main valve body are provided with a left end cover and a right end cover; and a main valve core and a main spring are arranged in the main valve body. The pilot proportional reversing valve is characterized in that: the pilot control valve comprises a pilot valve body and a left and a right proportion electro-magnets arranged at both ends of the pilot valve body; and a proportional reducing valve is arranged between the main valve body and the pilot valve body. The pilot proportional directional valve has the advantages of simplified structure, low cost, reduction of extravasation link, good spring guidance, high reliability and strong capability of resisting oil pollution.

The invention relates to a cutting device, in particular to a rapid straw cutting device for rear livestock with an aim to mainly achieve the purposes of rapid straw cutting and good cutting effect. In order to solve technical problems, the rapid straw cutting device comprises a mounting frame and the like; a moving mechanism is arranged at the bottom of the mounting frame, and a cutting mechanismis arranged on the upper portion of the mounting frame. The moving mechanism is arranged, and cutting is performed after the moving frame is fixed in case the moving frame moves horizontally; the cutting mechanism is arranged, and cutting of straws can be completed; the mounting frame is arranged, and the straws to be cut can be fed constantly and cut conveniently; press blocks are arranged, andthe straws are compacted downwards during cutting; magnets are arranged, and the straws can be mixed sufficiently and cut completely.

The invention discloses a mechanical damping passive pay-off unit. The mechanical damping passive pay-off unit comprises a pay-off wheel and a center shaft, wherein the center shaft is located in thecenter of the pay-off wheel and penetrates through the pay-off wheel. Damping mechanisms are arranged on the two sides of the center shaft respectively. The mechanical damping passive pay-off unit isscientific and reasonable in structure, and safe and convenient to use; because of the damping mechanisms, friction is generated through contact between each damping fin and the corresponding rotary plate, the pay-off speed of the pay-off wheel can be controlled, and the pay-off wheel can carry out pay-off work stably; because of connecting rods, lead screws, threaded rods and nuts, the separationdistance between each threaded rod and the corresponding nut is adjusted by turning the corresponding lead screw to adjust the gluing force between the corresponding damping fin and the correspondingrotary plate, then friction is changed to achieve the effect of having control over the rotating speed of the pay-off wheel, pay-off is smooth and steady, and the tension of cables is kept as well; and because adjusting gears are driven by rotary shafts to rotate, then racks are driven to move upwards or downwards to enable each positioning toothed plate and the corresponding gear to be separatedor be in engagement connection, the gears can rotate freely when each positioning toothed plate and the corresponding gear are separated, and when each positioning toothed plate and the correspondinggear are separated, the gears are locked, the pay-off wheel is locked as well, and the mechanical damping passive pay-off unit is more convenient to use.

The invention discloses a board cutting machine with a convenient feeding function, and relates to the field of cutting machines. The cutting machine comprises a work table, a conveying platform and a mounting frame; the conveying platform is mounted in the feeding direction of the work table, conveying rollers are arranged on the conveying platform, a blade groove is formed in the work table, and a cutting blade is arranged in the blade groove; a mounting groove communicated with the blade groove is formed in one side of the blade groove, a first lifting device is arranged in the mounting groove, a first drive motor is fixedly arranged on the first lifting device, and the cutting blade is fixed to a rotating shaft of the first drive motor; the mounting frame is mounted above the work table, a second lifting device is arranged on the mounting frame, and a compressing device is arranged below the second lifting device; the board cutting machine is simple in structure, high in cutting efficiency and good in cutting effect.

The invention discloses a cable trough main bearing T-beam composite material sidewalk and an installation method thereof, comprising a bracket, a cable trough and a pedestrian board integrated block,wherein the bracket is connected with a pre-embedded metal part embedded on the T-beam; the cable trough is placed on the bracket; and the pedestrian board integrated block is laid on the cable trough. The installation method includes the steps: connecting the bracket to the T beam; enabling the guardrail round pipe to directly penetrate into the round hole of the bracket for connection; then connecting the cable trough and the bracket through an expansion screw; and then forming the pedestrian board and the side beam of the pedestrian board into a pedestrian board integrated block, and laying the pedestrian board integrated on the cable trough. As the cable trough is directly arranged on the bracket, and the pedestrian board is directly laid on the cable trough, the cover plate part of the cable trough is saved, and the material cost is saved, and the strength requirement of the pedestrian plate is lower. Therefore, installation is fast and convenient. The cable trough main bearing T-beam composite material sidewalk is composed of composite materials, and has the advantages of corrosion resistance, maintenance-free, long service life and the like.

A cooler housing capable of encasing, protecting, and supporting cooler components, particularly components necessary for use as a portable evaporative cooler. Though the housing described herein may be used in cooling devices ranging from simple conventional fans to complex heat exchanger devices, the preferred embodiment of this invention is preferably used in conjunction with a portable evaporative cooler employing this housing and further comprising a motor that drives a pump connected to a sump tank.

The invention discloses a grooving machine for carton production, and belongs to the field of the carton production. The grooving machine for the carton production includes a machine frame, a supporting plate is fixedly connected to the right side of the machine frame, a driving motor is fixedly connected to the top of the supporting plate, and an upper pressure line roller is fixedly connected tothe left side of an output shaft of the driving motor; and a cavity is formed in the left side of the front side of the machine frame, and the left end of the upper pressure line roller penetrates through the machine frame and the cavity in sequence and extends into the machine frame. According to the grooving machine for the carton production, a worn grooving cutter can be removed from an upperpressure line wheel by the cooperation of an installation groove, a limiting opening and a limiting fixing device and a new grooving cutter can be replaced; the operation is easy, and the convenienceand the quickness are realized; by the cooperation of a slot, an installation block and a telescopic limiting device, the positions of the upper pressure line wheel and a lower pressure line wheel canbe adjusted, adjusting the position of the grooving cutter according to cartons with different sizes for users is convenient, and the applicability of the grooving machine is enabled to be better.

A track for a wall construction for use in building construction is disclosed. Embodiments can include a track having a plurality of bendable tabs that can be manipulated to grip or release wall studs to prevent lateral or side to side movement of the studs. Embodiments can include tracks which incorporate various geometries capable of receiving fire-retardant material, including but not limited to intumescent material.

The invention discloses a novel clinical bronchus support device for the pediatric department, belonging to the technical field of medical instruments. The novel clinical bronchus support device comprises shoulder pressing plates used for pressing the shoulders, armpit positioning blocks are connected to the lower end faces of the shoulder pressing plates in a sliding mode, arm hoop mechanisms arefurther arranged, each arm hoop mechanism comprises two arc-shaped clamping plates which are mounted on a same sliding block with the corresponding shoulder pressing plate, head pressing blocks usedfor pressing the head are further arranged, and each head pressing block comprises a forehead pressing plate and a head side baffle perpendicular to the forehead pressing plate; a plurality of slidingblock mechanisms and sliding chute mechanisms are adopted, so that the adjustment on the position and distance of the shoulder pressing plates, the armpit positioning blocks, the arm hoop mechanismsand the head pressing blocks is realized; meanwhile, adjusting rods and lifting rods are adopted for adjusting the height of the shoulder pressing plates, the armpit positioning blocks and the head pressing blocks. The novel clinical bronchus support device for the pediatric department can realize relatively comprehensive indirect fixing for the neck of a patient, the fixing effect is good, the bronchus operation can be conveniently carried out or the stability of an air delivery pipe can be conveniently maintained; the device has a relatively comprehensive adjusting function and is wide in application range.

The invention aims at providing a press fitting device for a spare part on a planet carrier. The press fitting device for the spare part on the planet carrier is capable of improving the production efficiency. The device comprises a pressing machine which is arranged on a working platform, a positioning seat and a positioning block, wherein a plurality of first storing grooves are formed in the positioning seat and upwards penetrate through the positioning seat; first compressing springs and positioning pins are arranged in the first storing grooves; the upper end surface of the positioning seat is downwards sunken to form a second storing groove; a positioning column is arranged in the second storing groove and is used for positioning a sun gear; the inner diameter of the second storing groove is beyond the outer diameter of the sun gear; the positioning pins are used for supporting a wheel shaft; a plurality of through positioning holes are formed in the positioning block; the quantity and the position of the positioning hole are corresponding to those of wheel shaft fixing holes in the planet carrier; when the planet carrier is positioned on the positioning seat, and the positioning block is positioned on the planet carrier, the upper ends of the positioning pins extend into the positioning holes through the first compressing springs.

The invention relates to the technical field of chemical products and discloses a constant temperature storage device for preparing 2-methoxypropene. The constant temperature storage device for preparing 2-methoxypropene comprises a box body, and a box cover is arranged on the top of the box body; the outer wall of the box body is fixedly connected with an external threaded pipe; and the inner wall of the box cover is fixedly connected with an internal threaded pipe. According to the constant temperature storage device for preparing 2-methoxypropene, by arranging a sealing groove and a sealingring, the interior of the device can be sealed; by arranging a temperature sensor, the temperature in the device can be known about; by arranging a heating device and a cooler, the temperature in thebox body can be controlled; by arranging an air supply device, the temperature in the box body can be dispersed uniformly; by arranging a vacuum device, the gas pressure in the box body can be controlled, and therefore the box cover can tightly press the box body, and the effect that the sealing performance is more stable is achieved; and by arranging a limiting block, it is prevented that the device is damaged when a square slide groove moves downwards, the structure is compact and effective, work is stable, and use is convenient for a user.

The invention relates to a forming device, in particular to a mass forming device for industrial soap. The technical problem to be solved by the invention is to provide a large-volume molding device for industrial soap with good molding effect. In order to solve the above-mentioned technical problems, the present invention provides such an industrial soap mass forming device, which includes a box body, a second rotating electrical machine, a bearing seat, a flat belt, a second rotating shaft, a second pulley, a second mold, a first Mold, second connecting rod, second slider, etc.; the top of the box is provided with a slide rail and a feed pipe, and the slide rail is located on the left side of the feed pipe. The invention rotates the first rotating motor to drive the groove to rotate, so that soapy water flows into the third mold, starts the fan to work, makes the soap solidify, starts the second rotating motor to drive the first placing plate to rotate, and makes the soap molded. The characteristics of good soap forming effect.

The invention discloses a device for batching a gray fabric of a loom. The device is characterized in that the device includes a machine base (2) arranged outside the loom, a batching mechanism arranged on the machine base (2) and a transmission mechanism for connecting the loom (1) with a batching mechanism, the transmission mechanism is a multi-stage chain transmission mechanism, and the transmission mechanism is connected with an original loom batching taker (7) on the loom. The device for batching the gray fabric of the loom has the advantages of simple structure, convenient, safe and reliable operation, low equipment failure rate and low cost; a driving shaft is capable of producing a batch, thereby reducing the number of fittings during the post processing of finished products.