91 results about "Leg extension" patented technology

A leg exercise assembly includes a stand assembly, a weight carrying member, and a leg extension assembly. The leg exercise assembly is designed to facilitate a modular unit that is operable separate from other workout equipment. A user can use the leg exercise assembly by placing his weight on a base of the stand assembly. The weight carrying member includes a shaft and a weight post. The weight post is coupled to the shaft and is configured to carry weights. The shaft is pivotally coupled to the post. The leg extension assembly is pivotally coupled to the shaft of the weight carrying member and is releasable so as to be selectively oriented on the shaft to allow for the performance of different exercises.

An adjustable chest compression device that can adjust to accommodate a variety of patient sizes. The chest compression device can include adjustable support legs structured to support the chest compression mechanism at a distance from the base member and adjust to accommodate a patient size. Another adjustable chest compression device can include adjustable legs that can adjust to accommodate different patient sizes, as well as perform the chest compressions using the adjustable legs. An extension, such as a back plate and / or leg extension can be added to a chest compression device to make the chest compression device taller and / or wider to accommodate larger patients.

The utility model discloses a zero-gravity sofa iron stand, which comprises a support base, the iron stand main body is hinged to the supporting base; the backrest assembly is hinged to the iron stand main body; the leg stretching assembly is hinged to the iron stand main body; the iron stand main body is used for supporting the iron stand main body, the supporting base is used for supporting the iron stand main body, the main driving part is used for adjusting the hinge angle between the iron stand main body and the supporting base, and the range of the hinge angle between the iron stand main body and the supporting base adjusted by the main driving part is 6-25 degrees. The operation difficulty is reduced, zero-gravity adjustment is achieved, the complexity of the iron stand body is reduced, meanwhile, along with inclination adjustment of the iron stand body, the leg stretching assembly can continue to extend forwards by a certain distance, and the stretching length and height of the leg stretching assembly are increased in a turning mode.

The present application relates to a mechanical stretching device (1) for a movable seat unit, the mechanical stretching device being capable of switching between a sitting position, a TV position and a lying position. The mechanical stretching device comprises: a fixed plate (12); a seat frame (10) capable of moving back and forth relative to the fixed plate (12); a backrest assembly (2) connected to the rear of the seat frame (10); and a leg stretching device (3) connected to the front of the seat frame (10), wherein when being in the lying position, the leg stretching device (3) stretches forwards and upwards, and the highest point of the leg stretching device (3) is at least 300 mm higher than the highest point of a backrest support (21).

The utility model relates to a mechanical stretching device for a movable seat unit. The mechanical stretching device comprises a base assembly; a side panel for attaching a seat portion of the seat unit; the backrest assembly comprises a backrest mounting piece and a backrest connecting rod assembly; and a central linkage member; wherein the backrest connecting rod assembly comprises a first backrest connecting rod and a second backrest connecting rod, the upper end part of the first backrest connecting rod is hinged with the front end of the backrest mounting piece at a first pivot point, the front end part of the second backrest connecting rod is hinged with the side plate at a second pivot point, and the middle part of the second backrest connecting rod is hinged with the middle part of the first backrest connecting rod; a leg stretching device; the mechanical stretching device enables the seat unit to be converted between at least a sitting position and a lying position, and compared with the sitting position, the distance between the first pivot point and the second pivot point is reduced in the lying position. In addition, the utility model further relates to a movable seat unit.

The present invention relates to the technical field of engineering machinery, and provides a leg extension device, an operating machine and a method of using the leg extension device, the leg extension device comprising a base, a first telescopic arm, a second telescopic arm, a first sensing element and a second sensing element; the base forms a first inner cavity; the first telescopic arm is pulled and connected to the first inner cavity, and the first telescopic arm forms a second inner cavity; the second telescopic arm is pulled and connected to the second inner cavity; the first sensing element is connected to the cavity wall of the first inner cavity; the second sensing element is connected to the first telescopic arm and the second telescopic arm through a toggle assembly, and the first telescopic arm and the second telescopic arm are suitable for switching the first sensing element and the second sensing element between an identification position and a non-identification position through telescopic movement, and when located at the identification position, the first telescopic arm and the second telescopic arm are both at a predetermined extension distance. The operator can determine whether the first telescopic arm and the second telescopic arm are extended to the position according to the sensing signal, thereby ensuring that the leg is in a fully extended state.

This invention discloses an anti-tilting sofa, comprising a base, a linkage support, a drive device, and a control unit. The linkage support includes a seat frame, a leg extension support, and a backrest frame, with the leg extension support and backrest frame rotatably connected to the seat frame. A damping element is connected to the leg extension support, the damping element having an elastic component that can elastically extend and retract. One end of the drive device is connected to the base, and the other end is connected to the elastic component of the damping element, used to drive the leg extension support to extend and retract via the damping element. When the load on the leg extension support reaches a preset value, the elastic component is compressed to retract the leg extension support. This anti-tilting sofa effectively avoids the risk of tipping over and is highly safe to use.

The present invention provides a seated leg curling trainer, which relates to the technical field of fitness equipment. The seated leg curling trainer includes a fixed base plate, the top rear end of the fixed base plate is fixedly connected to a connecting shell, the two sides of the interior of the connecting shell are respectively fixedly connected to a first limiting rod and a second limiting rod, a weight-bearing mechanism is slidably connected between the first limiting rod and the second limiting rod, one side of the top inner surface of the connecting shell is respectively fixedly connected to a first fixed pulley and a second fixed pulley, one side of the connecting shell is fixedly connected to a leg training mechanism, the top center of the fixed base plate is fixedly connected to a support mechanism, and the front and rear ends of the support mechanism are both fixedly connected to a back limiting mechanism. By designing the back limiting mechanism, the back of the human body is restricted by the straps during use, thereby greatly improving the effect of exercise, and making operation convenient without affecting the overall user experience.

The utility model discloses a mechanical stretching device, which comprises a fixed plate, a seat frame, a telescopic rod and a telescopic rod, the backrest assembly is pivoted with the rear part of the seat frame and comprises a backrest bracket for attaching a backrest; the leg stretching device is pivoted with the front part of the seat frame; at the sitting position, the included angle between the surface, attached to the backrest, of the backrest support and the fixing plate ranges from 110 degrees to 115 degrees; the range of an included angle between the fixing plate and the seat frame is 5-10 degrees; at the lying position, the included angle between the surface, attached to the backrest, of the backrest bracket and the fixed plate is 145-160 degrees; the included angle between the fixing plate and the seat frame ranges from 20 degrees to 30 degrees, when the sitting posture position is changed to the lying posture position, the rearmost portion of the backrest support does not have the trend of moving backwards, the situation that the seat unit moves backwards when the posture is changed can be avoided, and the wall leaning distance can be reduced; due to the large-angle backward leaning design of the backrest bracket of 145-160 degrees and the proper lifting of the seat frame of 20-30 degrees, more relaxed and comfortable lying experience can be provided.

This invention relates to the field of fitness equipment, and more particularly to a seated leg extension trainer. The seated leg extension trainer includes a bottom support base; a weight box is fixedly installed on one side of the top of the bottom support base; two parallel guide rods are fixedly installed on the inner sidewall of the weight box along the vertical direction; multiple stackable weight blocks are slidably sleeved on the outer sides of the two guide rods; and a rope is fixedly connected to the top center of the uppermost weight block. The seated leg extension trainer provided by this invention, through the linkage structure of a resistance clutch component and a resistance application component, can not only adjust the basic resistance by increasing or decreasing the number of weight blocks, but also apply additional resistance by raising and lowering the weight blocks through the resistance application component. Furthermore, the resistance can be controlled by adjusting the cam eccentricity and the elastic extension and contraction of the abutment spring, meeting the needs of different training scenarios.

The invention relates to the technical field of rehabilitation training instruments, in particular to a leg rehabilitation training device for a lying patient, which comprises a rack and a plurality of support shafts rotatably mounted in the rack, the plurality of support shafts are coaxial, the rack is provided with a lying table for the patient to lie flat, each support shaft is provided with a counterweight wheel, and the counterweight wheels are arranged on the rack. The outer wall of the counterweight wheel consists of a slope surface and a transition plane from one end of the slope surface to the other end of the slope surface; a patient actively applies force in a specified rotation interval of a counterweight wheel and rotates the counterweight wheel, and then the counterweight wheel reversely drives the legs of the patient to move in other rotation intervals of the counterweight wheel, so that the driving and driven alternating training mode for the patient is realized, and in the mode, the legs of the patient can be driven by the counterweight wheel. The legs of the patient can realize various movement modes such as pedaling and stretching movement, foot rotating movement and leg stretching movement, so that the training diversity is improved, and the patient can recover more quickly.

The invention provides a mechanical stretching device for a seating unit. The mechanical stretching device comprises a side plate; the seat frame can move relative to the side plates; the leg mechanism can be switched between a folded position and an unfolded position and comprises a main leg side plate and an auxiliary leg side plate which are used for being connected with the footstool in an attached mode and a leg stretching assembly hinged to the rear end of the main leg side plate and the rear end of the auxiliary leg side plate, and in the process that the leg mechanism is switched from the folded position to the unfolded position, the leg stretching assembly stretches out of the main leg side plate and the auxiliary leg side plate. The leg stretching assembly is unfolded, so that the main leg side plate and the auxiliary leg side plate are promoted to translate forwards relative to the seat frame; the transmission mechanism comprises a carrying connecting rod and a seat frame lifting assembly, and the seat frame lifting assembly is pivotally connected to the seat frame, the leg stretching assembly and the carrying connecting rod, so that the front part of the seat frame is lifted relative to the carrying connecting rod while the seat frame moves forwards relative to the carrying connecting rod. The invention also relates to a movable seating unit.

The application discloses a supporting leg telescopic device and a child safety seat, and relates to the technical field of safety seats. The supporting leg telescopic device comprises a shell, a release lock, an outer tube, a locking piece and a locking mechanism. The shell is sleeved on the outer wall of the outer tube, and the release lock, the locking piece and the locking mechanism are arranged in the outer tube. The release lock is fixedly connected with the shell. The release lock moves along the length direction of the outer tube to control the locking or separation of the locking piece and the locking mechanism, so as to adjust the relative position between the shell and the outer tube. The locking piece and the locking mechanism can cooperate with each other. The release lock is used for controlling the locking piece. The locking or separation between the locking piece and the locking mechanism is realized by controlling the locking piece to be close to or away from the locking mechanism. The release lock in the outer tube is controlled to move by pulling the shell, so that the locking piece and the locking mechanism are locked or separated, the relative position between the shell and the outer tube is adjusted, the length of the supporting leg telescopic device is changed, and the structure is simple and convenient to stretch and retract.

A buckle provided with a plug and a socket into which the plug is inserted, the plug being provided with: a base part to which an object to be connected is attached; a first leg portion and a second leg portion protruding from the base portion in an insertion direction of the plug and arranged side by side in a width direction orthogonal to the insertion direction; a first leg extension portion extending from the first leg portion toward the second leg portion; and a second leg extension portion extending from the second leg portion toward the first leg portion, each of the first leg portion and the second leg portion being configured to be engageable with the socket and to be disengageable from the socket according to elastic deformation in the width direction. The first leg extension portion and the second leg extension portion each have a pulling end portion that receives a pulling force from the outside, and the first leg extension portion and the second leg extension portion are disposed so as to at least partially overlap each other when viewed in a thickness direction that is orthogonal to the insertion direction and the width direction, respectively.

The invention provides a leg stretching device for physical training, and belongs to the technical field of training equipment.The leg stretching device comprises a supporting bottom plate, a plurality of training step blocks and a driving assembly, the training step blocks form a step structure above the supporting bottom plate, and the driving assembly is installed on the upper portion of the supporting bottom plate; when a trainee stands on the upper portion of the training step block at the highest position, the driving assembly is used for driving the training step blocks to deform, so that the training step block where the trainee stands is located at the lowest position, and the other training step blocks are sequentially heightened. Compared with the prior art, during leg stretching training, automatic deformation of the training step blocks in the high-low state can be achieved, so that trainees do not need to descend along the steps, meaningless physical strength consumption and knee injury in the training process are avoided, and the training effect is improved.

The utility model provides a thigh adduction and abduction training device. The thigh adduction and abduction training device is characterized in that action structures are installed on the two sides of a rack; the action structure comprises a pivot which is rotatably pivoted on the rack, and the pivot is provided with a rotating arm; the other end of the resistance structure is provided with a connecting hook; in the leg extension function state, the two ends of a telescopic resistance rope are fixed to the rotating arms on the two sides; and in a leg retraction function state, the bolt penetrates through the rotating arm and the connecting hook to connect the rotating arm and the resistance structure. The utility model provides a training device which is small in size and simple to operate and has double functions of adduction and abduction of thighs.

The invention discloses a linkage backrest structure mechanical stretching device and a seat unit with the same. The linkage backrest structure mechanical stretching device is provided with a base assembly, a side plate movably supported on the base assembly, a backrest assembly pivotally connected with the rear part of the side plate, a central linkage piece movably connected between the side plate and the backrest assembly, and a leg stretching device pivotally connected with the front part of the side plate. In the backrest assembly, the upper end of a first backrest connecting rod is hinged to the front end of a backrest mounting piece, the upper end of a second backrest connecting rod is hinged to the rear end of the backrest mounting piece, the front end of a third backrest connecting rod is hinged to the lower end of the first backrest connecting rod, the middle is hinged to a side plate rotating point, the rear end is hinged to the middle of the second backrest connecting rod, and the lower end of the second backrest connecting rod is hinged to a central linkage piece. When the sitting posture is changed into the lying posture, the first backrest connecting rod drives the front end of the backrest mounting piece to move forwards, the third backrest connecting rod rotates to enable the T-shaped backrest to avoid the handrail, the two are linked to achieve forward movement and backward inclination of the hip and the back of a user, the absolute displacement of the most rear part of the backrest is extremely small, and zero wall leaning is achieved.

The utility model discloses an auxiliary limiting tool for a block valve of a motor train unit, which belongs to the technical field of limiting tools and comprises a device body and a fixing column, the fixing column is fixedly mounted on one side of the device body, a supporting plate is fixedly mounted on the fixing column, a pipeline is arranged below the device body, and a valve is arranged above the pipeline. A connecting assembly used for being connected with a valve is arranged on one side of the device body, and a positioning assembly used for positioning the valve is arranged on the device body. According to the leg stretching device for training, rapid mounting and dismounting of a tool are achieved through cooperation of the springs and the tenons, when the leg stretching device needs to be mounted, the bolts are firstly unscrewed, the lifting handles are pulled, the lifting handles drive the drawing columns, the drawing columns drive the tenons to move and drive the springs at the same time, then the grooves are aligned with the valves, the lifting handles are loosened, and then the bolts are screwed off; at the moment, the spring drives the tenon to enter the hole, the bolt is screwed, and the bolt enters the threaded hole, so that quick mounting and dismounting can be achieved, the maintenance time is shortened, and the maintenance efficiency is improved.

A leg extension mechanism and a child safety seat are disclosed, relating to the field of child safety seat technology. The mechanism includes a housing, an inner tube, an outer tube, a release element, and a locking element. The inner tube is fixedly disposed inside the housing, and a receiving space exists between the outer wall of the inner tube and the inner wall of the housing. The outer tube is slidably disposed within this receiving space. The release element and the locking element are respectively disposed between the outer tube and the inner tube. The release element abuts against the outer tube, and its movement along the extension direction of the outer tube can cause the locking element to be fixed or separated from the inner tube, thereby adjusting the relative position between the outer tube and the housing. This leg extension mechanism and child safety seat facilitate extension and retraction operations, improving the user experience of the child safety seat.

This disclosure discloses a support leg assembly comprising: an indicator positioned at the support end and movable between a first position and a second position to indicate whether the support leg is in contact with a surface; a drive member positioned movably at the contact end; a traction member including a first end connected to the indicator and a second end connected to the contact end; and a retaining sleeve sleeve connected to the traction member and preventing at least a portion of the traction member from bending, wherein when the contact end is in contact with a surface, the drive member drives the traction member to slide against the retaining sleeve, and the traction member further drives the indicator. This disclosure also discloses support legs and carriers.

A simulation robot leg mechanism is provided with a leg crossing driving assembly, a thigh assembly, a knee joint driving motor, a shank assembly, an ankle assembly and a foot plate assembly. The upper end of the thigh assembly is connected with the power output end of the leg-striding driving assembly; the lower end of the thigh assembly is connected with the knee joint driving motor, the power output end of the knee joint driving motor is connected with the upper end of the shank assembly, and the lower end of the shank assembly is connected with the ankle assembly which is connected with the foot plate assembly. The thigh assembly comprises a striding and swinging output structural member, a striding and swinging driven end structural member, a leg rotation driving motor and a leg extending member; the shank assembly comprises a knee joint power output structural part, a knee joint passive end structural part, a shank structural part, a first ankle joint driving motor, a second ankle joint driving motor, a first rocker arm swinging part and a second rocker arm swinging part. The ankle assembly comprises an ankle cross shaft piece and an ankle connecting rod. The three-degree-of-freedom parallel robot is high in layout compactness and high in joint integration degree, a large movement range of the robot can be achieved, and flexibility and universality are improved.

A chair is equipped with a dual-mode tilt and collapsing mechanism, and / or a release mechanism for use when reconfiguring the chair between a ready-to-use configuration and a collapsible configuration, and / or a leg extension and retraction mechanism that is operable to extend and retract legs of the chair in response to moving a chair seat into and out of a collapsed position. Optionally the chair may be equipped with all three mechanisms, which provides for simplified conversion or reconfiguring of the chair between the ready-to-use configuration and the collapsed configuration that occupies substantially less floor space and less vertical space. Seating comfort of the chair is enhanced by the dual-mode tilt and collapsing mechanism in the ready-to-use configuration, which permits limited rearward tilting of the seat and seatback as a user shifts their weight on the seat.

The utility model relates to the technical field of nursing equipment, in particular to an orthopedic nursing traction support which comprises a fixed base, a traction mechanism is arranged at the top of the fixed base, an installation mechanism is arranged at the bottom of the fixed base, a storage battery is installed at the bottom of the fixed base, and a controller is installed on the outer wall of the fixed base. The traction mechanism comprises a sliding block connected to the inner wall of the fixed base in a sliding mode, the traction mechanism is arranged in the fixed base, and therefore a supporting plate and a clamping air bag in the traction mechanism are utilized to enable the supporting plate to be adjusted according to the distance and the angle of the legs of a patient through an adjusting structure; therefore, in the using process of the traction mechanism, the traction mechanism can be conveniently aligned with the legs of a patient, the traction nursing effect of the device is improved, and the problems that an existing nursing traction support cannot be accurately aligned with the legs of the patient, the traction direction and the stretching direction of the legs of the patient are deviated, and the traction effect is poor are solved.

An outdoor chair is provided that can include a seat, a pair of front legs, a pair of rear legs, a backrest, and a pair of armrests. The pair of front legs and the pair of back legs can both depend from the seat. The backrest can be disposed adjacent to the seat. The pair of armrests can be coupled to the front legs and the backrest, where each armrest can be coupled to the backrest with a flared protrusion. The rear legs can include an angled leg extension and the seat can include a plurality of horizontal slats.

1. Name of the product in this design: Leg extension and flexion device. 2. Purpose of this design: To exercise leg and abdominal muscles. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This buckle comprises a plug (10) and a socket. The plug (10) comprises: a base part (11); a first leg part (12A) and a second leg part (12B) that protrude from the base part (11) in an insertion direction of the plug (10) and are disposed side by side in a width direction; a first leg extension part (13A) that extends from the first leg part (12A) toward the second leg part (12B); and a second leg extension part (13B) that extends from the second leg part (12B) toward the first leg part (12A). Each of the first leg part (12A) and the second leg part (12B) is configured to be engageable with the socket and disengageable from the socket in accordance with elastic deformation in the width direction. Each of the first leg extension part (13A) and the second leg extension part (13B) has a tensile end part (132) that is subject to a tensile force from an external source. When viewed in a thickness direction, the first leg extension part (13A) and the second leg extension part (13B) are disposed to overlap each other at least partially.

A frame gravity center fine adjustment structure comprises a seat frame, a wheel shaft and driving wheels, the driving wheels are arranged at the two ends of the wheel shaft in a rotating mode, the seat frame is arranged on the wheel shaft through a gravity center fine adjustment mechanism, and the gravity center fine adjustment mechanism is configured to be capable of adjusting the sitting height, the sitting depth and the sitting width of the seat frame on the wheel shaft. According to the scheme, the sitting height, sitting depth and sitting width of the seat frame on the wheel shaft can be adjusted according to the specific situation of a user, the user can adjust the sitting height through the lifting rod assembly, the sitting height can be increased for a tall person, and the legs can naturally stretch; for a short person, the sitting height is reduced, so that both feet can be in contact with the ground or the pedal more easily; the sitting depth can be changed by adjusting the position of the wedge-shaped sliding block in the wedge-shaped sliding groove, the comfortable sitting posture requirements of users of different body types are met, and the sitting comfort of the wheelchair user is greatly improved.

A seat leg extension support is used for solving the problems that in the prior art, a seat backrest in the prior art can rotate, after the backrest is rotated, the upper body of a relying person is in a semi-supine state, the legs of the relying person are still in direct contact with the ground, muscles of thighs of the relying person are tight, and the relying person cannot feel comfortable. The seat comprises a bottom plate, a plurality of supporting columns are fixedly arranged on the bottom plate and placed in a rectangular shape, a seat plate is fixedly arranged on the supporting columns, a backrest is rotatably arranged at the end of the seat plate, a leg support is rotatably arranged at the end, away from the backrest, of the seat plate, and an extension plate is slidably arranged on the leg support. Hollow armrest plates are fixedly arranged on the two opposite sides of the seat plate, first rotating assemblies used for rotating the backrest are arranged in the two armrest plates, and second rotating assemblies used for rotating the leg support are arranged between the backrest and the leg support.