57results about "Crowbars" patented technology

The utility model discloses pipeline transferring and mounting equipment which is characterized in that after a pipeline is horizontally placed, the pipeline is connected with the pipeline through a hoisting piece, and then vertical acting force is applied to a force application piece, so that the force application piece vertically moves downwards relative to a traveling piece, and the hoisting piece is driven to vertically move upwards relative to the traveling piece under the transmission of a main body component; therefore, the pipeline is hoisted by utilizing the lever principle, and the pipeline can be locally adjusted when the pipeline is mounted; after the pipeline is hoisted, the acting force in the horizontal direction is applied to the force application part, under transmission of the main body component, the movable end of the advancing part is driven to rotate, then the pipeline transferring and mounting equipment is moved, and therefore the pipeline can be transferred; according to the scheme, the advancing part, the main body component, the hoisting part and the force application part are cooperatively matched, so that hoisting and transferring of the pipeline are achieved, the device is suitable for small-range transferring and mounting of small-diameter pipelines, the construction efficiency of municipal pipeline engineering is further improved, practicability is high, and the device is suitable for wide application and popularization.

A handheld electric jack includes a motorized screw drive mechanism housed within a cylindrical tool body, an actuating platform configured for linear motion, and a detachable control module operable in both docked and remote modes. The control module communicates wirelessly with the tool body and includes user interface elements for initiating lifting or lowering operations. The tool features safety interlocks, including dual-input activation, stall detection, and automatic shutoff. Load sensors and internal controllers enable responsive motor control based on sensor feedback. In some embodiments, multiple jacks wirelessly coordinate to perform synchronized lifting, monitor total load distribution, and respond to failure conditions. The modular platform accepts interchangeable lifting heads, and the system may be configured to operate autonomously or via user commands. This design improves safety, portability, and flexibility in construction, maintenance, and material handling applications.

The utility model discloses an auxiliary pulling device and a support assembly, and the auxiliary pulling device comprises a base; a first lever pivotally connected to the base along a first axis; the second lever is pivotally connected to the base along a second axis and is linked with the first lever; and the unlocking mechanism is movably arranged on the first lever so as to stop or allow the pivoting of the first lever, the unlocking mechanism is provided with a mistaken touch prevention device, and the mistaken touch prevention device is arranged to keep the unlocking mechanism at a position where the pivoting of the first lever is stopped. The pulling assisting device is compact in structure and capable of preventing misoperation.

The utility model provides a telescopic crowbar, including bottom shell, still include the crowbar body of sliding setting in the bottom shell, be used for locking the locking assembly of crowbar body position, the cover of separable connection with bottom shell, be provided with the pusher for driving crowbar body to slide out bottom shell on the cover, the outside of bottom shell is provided with back clamp, the side of bottom shell is provided with slide hole, back clamp is along the vertical bottom shell surface direction and is slidably arranged in the slide hole, the side of cover is provided with guide hole, is provided with the guide rod of being connected with back clamp in guide hole, the outside of guide rod is equipped with spring, the utility model provides a telescopic crowbar, the connecting portion of back clamp is under the action of spring on guide rod and slides in the slide hole, make back clamp's adjustment range be bigger, back clamp is more stable and reliable when clamping the clamping object of different thickness, avoided back clamp to come off the clamping object, back clamp is more small and exquisite when retracting, the use of small crowbar is more time -saving and labor -saving, and the carrying is more safe and reliable.

The utility model belongs to transportation equipment technical field discloses a kind of hoisting transport devices. Hoisting transport device includes support assembly and hoisting assembly, support assembly includes support frame, first connecting piece, wheel shaft and two running wheels, support frame is fixedly connected in wheel shaft, and first connecting piece is fixedly connected in support frame;Hoisting assembly includes hoisting lever, connecting sleeve, fastener, second connecting piece and hoisting piece, hoisting lever can be slidably connected in connecting sleeve, connecting sleeve is provided with fastening thread hole, fastener is arranged in fastening thread hole to fix hoisting lever and connecting sleeve, second connecting piece is fixedly connected in connecting sleeve, and second connecting piece is movably connected with first connecting piece to adjust the distance of hoisting lever to wheel shaft, hoisting piece is configured as connection hoist flange. Hoisting transport device provided by the utility model can quickly transport concrete foundation to specified position, reduce the labor intensity of construction personnel, and improve construction efficiency.

The utility model provides a business line prefabricated cover plate laying trolley device which comprises a wheel set, a main beam, a supporting frame, a sliding lifting ring mechanism and a lifting hook mechanism, the main beam is fixedly arranged on the wheel set through the supporting frame, the sliding lifting ring mechanism comprises a sliding way and at least one lifting ring, and the lifting hook mechanism is arranged on the sliding way. The sliding way is fixedly arranged on the main beam, the extending direction of the sliding way is the same as the length direction of the main beam, the lifting ring is assembled on the sliding way and is in sliding fit with the sliding way, and the lifting hook mechanism is hung on the lifting ring and can lift a prefabricated cover plate. The trolley device has the advantages that the trolley device is small in dead weight and light and convenient to move, the position of the prefabricated cover plate on the main beam can be adjusted through sliding fit of the sliding ways and the hanging rings, time and labor can be saved in the processes of hoisting the prefabricated cover plate, advancing, laying and the like, a plurality of prefabricated cover plates can be transported at the same time, needed labor is small, and construction efficiency is greatly improved.

Lowering mechanism for a hand held jacking tool comprising a jacking frame, a jacking shaft and a caulking gun jacking mechanism. The lowering mechanism comprises a lowering plate on top a the holding plate, a pushing lever connected with a hinge attachment to the lowering plate at a rear end, wherein a pushing lever is pivoting around a pivot structure connected to the lever or holding plate a distance backward from the hinge attachment, causing the lowering plate to grip the jacking shaft when the lever is pushed downwards and then, in turn, pushing the holding plate downwards and loosening it from the jacking shaft and moving it down along the jacking shaft a distance determined by the pivoting action of the lever. The lowering plate is held in place by a spring biasing the lowering plate towards the holding plate.

The utility model belongs to the field of well lid tools, specifically discloses a special crowbar for anti -theft integrated well, including the stick body, upper folding leaf and transmission rod, the inside movable mounting of stick body has transmission rod, and the one side fixed connection of transmission rod has the protection ring, one side movable mounting of stick body has the lower folding leaf, and the bottom of lower folding leaf is provided with the lower pivot, and the top movable mounting of lower folding leaf has upper folding leaf, and the folding hinge is arranged between upper folding leaf and lower folding leaf, and the upper pivot is arranged between upper folding leaf and transmission rod, and upper folding leaf and lower folding leaf are half circular ring type, and the outside wall of upper folding leaf and lower folding leaf all is provided with antiskid boss, the utility model discloses through the upper pivot and the folding hinge misplacement setting V type clamping well lid opening, and the movable block and antiskid boss enhance friction, and the lever effect stabilizes and opens well lid and prevents skidding, and when receiving, the folding leaf inlays the stick body, and the protection ring closes the notched, prevents the impurity from entering the inside of stick body and leads to structure jam, and guarantees durability and repeated use stability.

This utility model relates to a device for quickly pulling and lifting buried steel pipes. It includes: a base for providing stable support; a vertically mounted upright on the base, with an adjustable height to accommodate buried steel pipes of different lengths; a lever mechanism connected to the upright for transmitting and amplifying the force; a clamp at one end of the lever mechanism for holding the buried steel pipe; and an elastic element on the lever mechanism for providing a restoring force. By operating the lever mechanism, utilizing the lever principle and the friction between the clamp and the surface of the buried steel pipe, the buried steel pipe is pulled out from underground. This utility model is applicable to various projects and sites, is easy to install and operate, can be quickly assembled and installed by a single worker, and has high safety and reliability. It can greatly liberate workers' labor and save physical strength and labor costs.

A removal tool is provided. The removal tool includes a tool body extending in a longitudinal direction having an engagement portion at one end and defining an opening at the other end. The engagement portion includes two prongs and defines a notch portion formed between the prongs at a distal end portion. The notch portion extends in the longitudinal direction and rounded at a proximal end portion, each prong has a cut out portion at the distal end portion horizontally tapered toward the notch portion. The distal end portion has a tapered portion vertically tapered away from the distal end portion.

A transfer device with a tilting function relates to the field of transportation and comprises a support bar, traveling wheels are rotatably arranged at two ends of the support bar, and a crow bar is arranged on the support bar; an inserting plate is fixedly arranged on the crow bar, the inserting plate inclines downwards and extends, and the front edge of the inserting plate is in a sharp cutting edge form. The problem that in the prior art, short-distance transfer of equipment such as forklifts and the like is inconvenient to conduct on a loading road surface is solved, and particularly the problem of transfer of heavy-weight goods without logistics trays is solved; particularly, the equipment is low in manufacturing cost, low in maintenance cost, simple to use and suitable for being popularized and used at small logistics points.

The utility model discloses a fire rescue forcible entry tool which comprises a fixed crowbar, a flat hoe is fixedly connected to the bottom of the fixed crowbar, a pointed-end crowbar is fixedly connected to the position, perpendicular to a flat crow plate, of the top of the fixed crowbar, a movable sleeve is slidably connected to the outer surface of the fixed crowbar, and fixing rings are fixedly connected to the two ends of the movable sleeve. The side, close to the flat crow plate, of the fixed ring is fixedly connected with a movable ring. A fixing frame is fixedly connected to the outer surface of the side, close to the pointed-end pinch bar, of the moving ring, a rotating rod is rotationally connected to the inner wall of the fixing frame, a connecting rope is fixedly connected to the outer surface of the rotating rod, and a protective sleeve is fixedly connected to the end, away from the rotating rod, of the connecting rope. According to the fire rescue forcible entry tool, the position of the movable sleeve can be moved, so that a user can confirm the optimal acting point according to the actual situation, the force distribution is more uniform when the user forcibly exits, bending of a crowbar in the forcible entry process is prevented, meanwhile, the force can be saved, and the forcible entry efficiency is improved.

The utility model discloses an auxiliary tool for carrying a drill rod in a short distance, which relates to the technical field of carrying tools and comprises a ripping bar and a control rod, the ripping bar and the control rod are both cylindrical, the ripping bar is matched with the control rod, and the ripping bar and the control rod are both made of alloy materials. Connecting assemblies are arranged on the outer walls of the two adjacent sides of the ripping bar and the control rod and matched with the ripping bar and the control rod respectively, and a grip is welded to the outer wall of the control rod. When the tool is used, the grip is held by a hand, the pinch bars penetrate into the two ends of the drill rod, the drill rod can be lifted by holding the grip, the grip facilitates control over the control rod, force exerting is convenient, the drill rod is carried in a more labor-saving mode, friction between the anti-skid sleeve and the anti-skid points at the bottom of the anti-skid sleeve is increased, the anti-skid sleeve protects the palm, and the tool is convenient to use. The pinch bar and the control rod are connected through the threaded rod, and when the pinch bar or the control rod is damaged, the damaged part can be directly replaced.

The utility model relates to the technical field of object carrying crowbars, in particular to a crowbar for moving a steel rail, a supporting frame comprises a top cross rod and two bottom vertical rods, the two bottom vertical rods and the top cross rod form an n shape, two ripping bars are fixedly connected to the opposite side walls of the two bottom vertical rods respectively, a wheel seat is fixedly connected to the bottom face of each bottom vertical rod, and the wheel seats are fixedly connected to the bottom face of each bottom vertical rod. The lower ends of the two bottom vertical rods are prying points, the two prying rods are stably connected with the steel rail or the I-shaped steel, the steel rail or the I-shaped steel can be stably pried, the steel rail or the I-shaped steel cannot slip in the upwarping process, and due to the arrangement of the rotating wheels, the steel rail or the I-shaped steel cannot slip off. The steel rail or I-beam lifting device is stable in structure, convenient to connect, easy to use and stably matched with the steel rail or I-beam for use, the labor intensity of carrying work of the steel rail or I-beam is relieved, operation safety is guaranteed, and work efficiency is improved.

The utility model discloses a manual exploration soil auger convenient for sampling, which relates to the technical field of soil sampling, and comprises a sampling barrel arranged at one end of a sampling bracket, an observation window arranged on the side wall of the sampling barrel, handles horizontally and symmetrically arranged at the other end of the sampling bracket, and a through hole arranged in the sampling bracket, a through hole is formed in the sampling support and penetrates through the whole sampling support, the movable support is slidably mounted in the through hole, a push plate is mounted at the end, close to the sampling barrel, of the movable support and slidably mounted in the sampling barrel, and the lever lifting unit is mounted on the outer side wall of the sampling support and used for assisting in lifting the sampling barrel from soil. And the force required for lifting the sampling barrel is reduced through the lever principle. The problems that in the process that an existing manual sampling soil auger is taken out of soil, a user needs to lift the manual sampling soil auger through the arm strength of the user, the use difficulty is large, and the depth of the manual sampling soil auger inserted into the soil is not easy to control in the sampling process are solved.

The application discloses a component carrying device which can be pried up and jacked up and a carrying method thereof. The carrying device comprises a trolley body, a pry plate fixed to the front end of the trolley body and extending out of the trolley body forward, two jacking assemblies arranged on the two sides of the trolley body, and a propelling assembly which can simultaneously drive the two jacking assemblies to move back and forth between the trolley body and the front end of the pry plate under the action of external force. The jacking assembly comprises a jacking frame connected with the propelling assembly and a lifting plate vertically movably connected with the jacking frame. The lifting plates of the two jacking assemblies extend relatively inward to the pry plate. The construction efficiency is improved by the carrying device.

The utility model belongs to the technical field of petroleum refining and chemical equipment, and particularly relates to a manual micro-gap flange separator. The crowbar comprises a first crowbar body, a second crowbar body, a third crowbar body, a connecting piece, a fixing plate and a pushing mechanism. The first crowbar, the second crowbar and the third crowbar are arranged in parallel; one end of the first crowbar and one end of the second crowbar are fixedly connected to the two ends of the connecting piece. One end of the third crowbar is rotatably connected to the connecting piece and is arranged between the first crowbar and the second crowbar; the fixing plate is arranged on one side of the first crowbar, the second crowbar and the third crowbar and fixedly connected with the first crowbar and the second crowbar. The pushing mechanism is vertically and rotatably connected to the plate face of the fixing plate, and the bottom end of the pushing mechanism penetrates through the fixing plate and then makes contact with the third crowbar. The utility model has the advantages of compact structure, small volume, light weight, simple operation and flexible operation; the device is suitable for separation operation requirements of most micro-gap flanges, and the efficiency, quality and safety of related maintenance operation of the flanges are remarkably improved.

The utility model provides a device for dismounting and assembling filter disc of rotary table filter, and its technical scheme is: including filter disc, the slope face butt joint of filter disc and conveying slope, and the filter disc is placed with hoisting mechanism and correction mechanism, correction mechanism includes pressure rod and support, the utility model has the advantages of: (1) simplifying filter disc dismounting operation, reducing labour intensity, (2) improving filter disc transfer security, avoiding equipment and personnel damage, (3) optimizing filter disc installation correction, guaranteeing assembly quality, (4) enhancing device versatility and practicality.

The utility model relates to the technical field of crowbars, in particular to a mountain land dragging pry which comprises a center connecting rod and triangular side plates symmetrically fixed to the two ends of the center connecting rod, moving idler wheels are installed on the lower portions of the two sides of the two triangular side plates through rotating shafts, straight groove openings are formed in the side walls of the two triangular side plates, and the straight groove openings are communicated with the center connecting rod. A sleeving limiting rod is installed on the inner wall of an opening of the straight groove in a penetrating mode, and the outer wall of the sleeving limiting rod is sleeved with a rotating sleeve; through mutual cooperation of rotating bearings at the two ends of the rotating sleeve, the center connecting rod and the triangular side plates, relative installation of the center connecting rod, the triangular side plates, the movable rolling wheels and the rotating sleeve is achieved, the device can be conveniently moved as a whole, and meanwhile the device can serve as a crowbar fulcrum after the rotating sleeve and the crowbar column body are combined to achieve the crowbar function of the whole device; and the sleeving limiting rod clamped between the openings of the straight grooves can move to a certain degree under the supporting cooperation of the springback mechanism, so that the edge warping difficulty in the using process of the device is reduced, and the using efficiency is improved.

A trim and clip extractor tool includes a handle with a storage compartment and an axle to which an extractor blade is rotatably connected. The blade has a channel formed between prongs, and the extractor blade and its prongs are folded and stored in the compartment when not in use.

The supporting mechanism of the cleaning tool for cleaning the transformer comprises a supporting rod arranged on the top face of a base, a supporting block is arranged at the top end of the supporting rod, a supporting groove clamped with the middle section of the cleaning tool is formed in the top face of the supporting block, and an elastic piece for improving the clamping efficiency is arranged in the supporting groove. The supporting rod is rotationally connected with the supporting block through a universal connecting piece. An additional stress fulcrum can be provided for a cleaning tool, and the problems that the tail end of a contact is large in shaking amplitude, unstable in gravity center and the like in the cleaning process are solved.

Lowering mechanism for a hand held jacking tool comprising a caulking gun jacking mechanism. The lowering mechanism comprises a lowering plate (4) on top of the holding plate (2), a pushing lever (5) connected with a hinge attachment (6) to the lowering plate at a rear end, wherein the pushing lever is pivoting around a pivot structure (8) connected to the lever or holding plate a distance backward from the hinge attachment, causing the lowering plate (4) to grip the jacking shaft (3) when the lever is pushed downwards and then, in turn, pushing the holding plate downwards and loosening it from the jacking shaft and moving it down along the jacking shaft a distance determined by the pivoting action of the lever. The lowering plate is held in place by a spring (9) biasing the lowering plate towards the holding plate.

The utility model relates to the technical field of belt pulley supporting frames, and discloses a supporting frame of a belt pulley for a fan, which comprises a cross rod, square pipes are fixedly connected to two ends of the cross rod, vertical rods are fixedly connected to the tops of two ends of each square pipe, and a bearing rod is fixedly connected to the upper end between two adjacent vertical rods. A mounting rod is fixedly connected to the middle between every two adjacent vertical rods, lifting frames are rotationally connected to the outer walls of the mounting rods through connecting shafts, positioning grooves are formed in the upper ends of the outer walls of the lifting frames, rotating shafts are arranged on the outer walls of the positioning grooves, belt wheels are fixedly connected to the outer walls of the rotating shafts, and the lifting frames are symmetrically arranged; the lifting frame is a labor-saving lever. According to the belt pulley detection device, the outer wall of the rotating shaft is clamped into the positioning groove, then the pedal is treaded downwards, so that the belt pulley ascends, the rotating shaft slides down to the top surface of the bearing rod along the outer wall of the lifting frame for detection, and the belt pulley is easily carried to a detection position.

The invention discloses an anti-gravity structure based on a nonlinear moment lever and a method thereof. The structure comprises a rigid torque rod (provided with an acting end A, a load end B and a force arm length L), a fixed fulcrum O, a gravity load applying mechanism and an acting force applying mechanism. The key innovation lies in that the force F direction acting on the A end is always perpendicular to the rod body; static balance of the system is achieved under the specific angle alpha (the included angle between the action line of B and the horizontal line), and the anti-gravity (force gain) effect meeting G = F * (3-2 * sin alpha) is achieved. The effect is shown as a gain multiple K = G / F = 3-2 * sin alpha (for example, K is approximately equal to 2 when alpha is equal to 30 degrees; when alpha is approximately equal to 48.6 degrees, K is approximately equal to 1.5). According to the invention, force gain greater than 1 is realized under static balance without depending on continuous external energy input, and no net power consumption is generated after balance. The structure is simple and reliable, force gain can be quantitatively predicted, nonlinearity is controllable, conversion and utilization of equivalent energy can be achieved, and the large application potential in the field of gravity balance and energy recovery is achieved.

The utility model belongs to the technical field of carrying tools, and discloses an unpowered carrying device which comprises a supporting frame, a supporting arm and a hook piece, a rotatable connecting piece is arranged on the supporting frame, the supporting arm is hinged to the connecting piece, a suspension piece is arranged at one end of the supporting arm, a balance weight piece is arranged at the other end of the supporting arm, and an adjusting assembly is arranged at the free end of the suspension piece. The number of the hook pieces is at least two, the hook pieces are oppositely arranged on the adjusting assembly, the adjusting assembly is used for adjusting the distance between the oppositely-arranged hook pieces, and the hook pieces are used for hooking the two sides or the two ends of the external frame box. The adjusting assembly is arranged at the free end of the suspension piece, the at least two hook pieces are arranged on the adjusting assembly, the two sides of the external frame box can be hooked through the hook pieces, and under the assistance of the balance weight piece, the labor intensity is relieved, and the carrying efficiency is improved. And meanwhile, the distance between the hook pieces can be adjusted through the adjusting assembly, and carrying of frame boxes of different specifications is met.

The utility model discloses a convenient opening and closing tool for a manhole well lid, which comprises a moving component, a lifting component, a lifting component, a lifting component, a lifting component and a lifting component, and is characterized in that the moving component comprises a rotating shaft and a rocker connected with the periphery of the rotating shaft; the opening assembly comprises an abutting plate, a rotating plate and a lifting hook, the abutting plate is connected with the periphery of the rotating shaft, the rotating plate is hinged to the abutting plate, the lifting hook is rotatably arranged on the rotating plate, the lifting hook is provided with a hook, and when the well lid is opened, the hook can be buckled with an insertion hole of the well lid, and the hook can be buckled with the insertion hole of the well lid. The abutting plate and the rotating plate rotate relatively, and the abutting plate abuts against the periphery of the well lid to lift the well lid. The manhole cover can be opened and closed in a time-saving and labor-saving manner, the structure is simple, and the manufacturing cost is low.

The invention relates to a portable cable trench cover plate taking device which comprises a supporting frame, and rolling wheels are arranged at the bottom of the supporting frame. The clamping mechanism is arranged on the supporting frame and comprises an adjusting assembly and a clamping assembly, the adjusting assembly comprises a first clamping arm, a second clamping arm, a first electric push rod and a second electric push rod, the first clamping arm is hinged to the second clamping arm, and the fixed end of the first electric push rod and the fixed end of the second electric push rod are both connected to the supporting frame; the clamping assembly comprises a first clamping piece and a second clamping piece which are used for clamping the cover plate, the first clamping piece slides on the first clamping arm, the second clamping piece slides on the second clamping arm, the first clamping piece is connected with the telescopic end of the first electric push rod, and the second clamping piece is connected with the telescopic end of the second electric push rod; the device is convenient to operate and high in portability, and the taking efficiency of the cover plate is improved.