51 results about "Leg extension" patented technology

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.

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 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 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.

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.

The utility model relates to the technical field of leg stretching and bending training devices, in particular to a sitting and lying adjustable leg stretching and bending training device which comprises a fixing piece arranged on a connecting rod of a sitting and lying adjustable leg stretching and bending training device body in a sleeved mode, an elastic sleeve connected to a fixing piece is arranged outside the fixing piece in a sleeved mode, and a movable cylinder is arranged on the elastic sleeve in a penetrating mode. A fixing strip is arranged at one end of each movable cylinder, positioning rods connected to the fixing pieces are arranged on the fixing strips in a penetrating mode, locking pieces matched with the positioning rods and used for locking the positions of the movable cylinders are symmetrically and elastically connected to the fixing strips, the ends, close to the fixing pieces, of the movable cylinders penetrate into the fixing pieces, and the multiple positioning pieces are elastically connected into the fixing pieces. And a positioning hole matched with the positioning piece is formed in the movable cylinder. Therefore, the diameter of the leg support can be quickly adjusted, the leg support is convenient for a user with a smaller body shape to use, the training effect is ensured, and the leg support is convenient to adjust.

The present application provides a seat extension device and an electric swing chair comprising same. The seat extension device comprises: a support base; a swing assembly, wherein the swing assembly is swingably mounted on the support base; and an extension assembly, wherein the extension assembly comprises a base frame mounting component, a footrest component, a leg extension component, and a backrest extension component. The base frame mounting component is rotatably mounted on the swing assembly, and the leg extension component and the backrest extension component are hingedly connected to two ends of the base frame mounting component, respectively, so that the leg extension component and the backrest extension component can cooperate with each other to allow the extension assembly to assume a sitting position and a reclining position. The footrest component is located at the end of the leg extension component distant from the backrest extension component. When the extension assembly is in the reclining position, the difference between the highest point of the footrest component and the highest point of the backrest extension component is greater than a predetermined height difference h. By means of the technical solution of the present application, the problem in the prior art of limited functionality of existing electric seats can be solved.

1. Name of the product in this design: Kneeling Leg Extension Trainer. 2. Purpose of this design: fitness training. 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.

A web harness system includes a sub-pelvic support portion. A leg harness portion is connected to the sub-pelvic support portion. The leg harness portion including: a first leg extension connected to a first portion of the sub-pelvic support portion; a second leg extension connected to a second portion of the sub-pelvic support portion; a right leg adjustment belt connected to the first leg extension; and a left leg adjustment belt connected to the second leg extension.

The utility model relates to a mechanical stretching device for a movable seat. The mechanical stretching device comprises a base unit fixedly supported on the ground; each backrest unit comprises a first backrest connecting rod, a second backrest connecting rod and a backrest mounting plate, and the first backrest connecting rod and the second backrest connecting rod are connected with the base unit in a pivoted mode; two leg stretching units; the linkage connecting rod is connected between the backrest unit and the leg stretching unit; the electric actuator acts between the base unit and the linkage connecting rod, and when the leg stretching unit stretches forwards relative to the base unit, the upper end portion of the first backrest connecting rod and the upper end portion of the second backrest connecting rod pivot backwards at the same time; when the leg extension unit is retracted rearward with respect to the base unit, the upper end of the first backrest link and the upper end of the second backrest link simultaneously pivot forward. The utility model further relates to a movable seat unit.

1. Name of the product in this design: Leg Extension Trainer (Y960-961ZA). 2. Purpose of this design: This design is for fitness purposes. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design.

The utility model discloses a supporting leg folding mechanism, belongs to the technical field of construction facilities, and solves the problems in the prior art that the adaptability to uneven ground is insufficient, the occupied space of supporting legs is large, the supporting legs are not easy to stack in the transportation and storage process, parts are easy to lose, and the normal use of the device is influenced. Comprising a connecting supporting leg and a supporting leg extension frame, the supporting leg extension frame is horizontally arranged on the construction ground, a supporting leg storage groove is formed in the front portion of an extension frame body of the supporting leg extension frame, the connecting supporting leg is vertically arranged at the front end of the supporting leg extension frame, and the lower end of the connecting supporting leg is movably connected with the inner wall of the front end of the supporting leg storage groove through a supporting leg hinge base; the connecting supporting legs are provided with connecting mechanisms used for being connected with the lower portions of the baffles. The construction platform is reasonable in design, foldable in structure, small in occupied space, convenient to transport and store, high in adaptability to the installation environment, short in installation and adjustment time and high in construction operation efficiency.

A zero-gravity sofa iron frame, comprising: a support base (1); an iron frame body (2), the iron frame body (2) being hinged to the support base (1); a backrest assembly (3), the backrest assembly (3) being hinged to the iron frame body (2); a leg extension assembly (4), the leg extension assembly (4) being hinged to the iron frame body (2); and a main driving member (5), the main driving member (5) being configured to adjust the hinge angle between the iron frame body (2) and the support base (1), and the main driving member (5) adjusting the hinge angle between the iron frame body (2) and the support base (1) within the range of 6° to 25°.

The Invention relates to a hammock with a horizontal leg extension, comprising a hammock (100) consisting of a textile support having its ends gathered in a bundle by a strap or sewn to two bars (101) - an upper one (101a), for the end of the hammock where the user's head will be situated, and a lower one (101b), fur the end of the hammock where the user's legs will be situated, the bars (101a, 101b) being hung by ropes (102) for tying the temmock to two support points. The hammock is provided with an extension (104) of textile material that allows the user to stretch their legs in a comfortable, horizontal position, the extension (104) being formed of two segments, one horizontal (104a) which supports the user's legs, and one vertical (104b) which ensures the attachment of the extension to the lower bar (101b) of the hammock (100), as well as a strap (106) for adjusting the height of the extension according to the user's preference, the free part (106a) having at its end a carabiner (107) for hooking, and the part (106b) being sewn, to the extension ( 104).

The utility model discloses a supporting leg counterweight structure of a construction fence, belongs to the technical field of construction facilities, and solves the problems that the adaptability to uneven ground is insufficient, the occupied space of a supporting leg is large, the aesthetic property is poor, the transportation and storage are inconvenient, and the normal use of a device is influenced in the prior art. Comprising a balance weight base, a telescopic supporting leg extension frame is arranged in the middle of the front side of the balance weight base, a connecting supporting leg is vertically arranged at the front end of the telescopic supporting leg extension frame, and a supporting leg storage groove is formed in the front portion of an extension frame body of the telescopic supporting leg extension frame; the lower ends of the connecting supporting legs are movably connected with the inner walls of the front ends of the supporting leg containing grooves through supporting leg hinge bases, and locking type connecting mechanisms are arranged on the connecting supporting legs. The device is reasonable in design, foldable in structure, small in occupied space, convenient to transport and store, high in adaptability to the mounting environment, high in construction operation efficiency, capable of stably pressing and fixing a temporary construction baffle supporting leg structure and avoiding damage to the ground due to arrangement of expansion screws, good in overall attractiveness and high in practicability.

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.

An adaptable leverage device for modifying body position and range of motion in use of workout equipment for greater muscle stretch in each workout rep. The device features at least one bundled group of elongated pads that are elongated in a common longitudinal direction and bundled together in longitudinally parallel relationship to one another, and among which any neighbouring two pads of said bundled group are coupled together via one or more flexible interconnections that permits pivoting of said neighboring two pads relative to one another between varying positions of longitudinally parallel relationship to one another. The device is usable in a flat state on flat back and chest supports of various workout equipment, but also usable in a non-flat state conforming to cylindrical legs bars of leg curl and leg extension machines. A stackable embodiment with two pad groups is foldable in half to double the device's effective thickness.

The present disclosure describes an exercise pedal. The exercise pedal includes a platform including a first end and a second end; a primary leg extension connected to the platform at a first end of the platform via a primary pivot; and a secondary leg extension connected to the platform at the first end of the platform via a secondary pivot. The primary leg extension is configured to rotate about a primary pivot between a primary extended position and a primary stowed position. The secondary leg extension is configured to rotate about a secondary pivot between a secondary extended position and a secondary stowed position. The primary leg extension is configured to be at least partially received within the platform when the primary leg extension is in the primary extended position. A method of using the exercise pedal including the platform is also described. The method includes increasing the height of the first end of the platform by rotating the primary leg extension from a primary stowed position to a primary extended position, and further increasing the height of the first end of the platform by rotating the secondary leg extension from a secondary stowed position to a secondary extended position, in which the secondary leg extension extends from the primary stowed position to the secondary extended position, the secondary leg extension is partially received within the primary leg extension.