63 results about "Body size" patented technology

The invention discloses a sheep weight and size measuring system and method, and relates to the technical field of animal husbandry breeding intelligent management. Firstly, the invention discloses a sheep weight and body size measuring system, which comprises a PLC (Programmable Logic Controller), a computer, a channel module, a blocking module, an identity recognition module, an entrance module, an image acquisition module, a weighing module and a grouping module, wherein the PLC is in communication connection with the computer. Secondly, the invention discloses a method for measuring the weight and the body size of the sheep, and the method comprises the following steps: S1, driving the sheep into a guide channel at the entrance of the system, and arranging a queue; and S2, a worker starts a blocking module to communicate the recognition channel with the guide channel, and after the first sheep enters the recognition channel, the blocking module is started again to block the space between the recognition channel and the guide channel and block the next sheep. The device has the advantages of automation, high precision and non-contact, so that personal errors and sheep stress are reduced, and the working efficiency is improved.

The present disclosure provides a lumbar support with armrests featuring a tightness adjustment function, comprising a lumbar support body. The lumbar support body is sequentially divided from top to bottom into a backrest area, a lumbar support protrusion area, and a hip support area, with armrests provided on both sides. An adjustable tightness mechanism that can adjust the elasticity of the elastic strap is installed between the two armrests, allowing users to flexibly adjust the tightness according to their body size and preferences, preventing displacement. The armrests on the lumbar support body provide convenient hand support; the overall design fits the waist, offering a more comfortable and convenient user experience.

A method of identifying garments for a user. The method includes receiving on a computer device data from a user, the data including height of the user and gender of at least one item of clothing worn by the user. The data further includes at least one of: an identification of at least one predetermined sizing system of the clothing item; a size of clothing of the clothing item; weight of the user; and fit of the clothing item. The data is analyzed to determine body size related data for the user. The same or another computer device receives an image of a garment and establishes locations on the image of a plurality of the features. The distances between the identified features are estimated to determine garment size related data and this is compared to the body size related data to determine how well the garment will fit the user.

A garment size appropriate for a user is determined by obtaining a reference image of a human wearing a corresponding garment and obtaining nominal size data for the garment worn in the reference image. Body dimensions of the human depicted in the reference image are derived from the reference image and / or from another data source and are compared with the nominal size data of the garment. Corrections based on variations between the body dimensions and the nominal size data are used to generate corrected size data for the garment. On receiving a request for the garment in conjunction with user body data uploaded by the user, for example in a body image, the corrected size data is looked up for the requested garment. A size recommendation for the requested garment is conveyed to the user based on a comparison between the uploaded user body data and the corrected size data.

The utility model relates to a kind of stable effect good sub-drive rowing trainer, including frame body, the top of frame body is provided with seat, the bottom of seat is inserted with fixed rod, the fixed rod is fixedly connected with seat, the opposite ends of fixed rod are rotatably connected with moving plate, two the moving plate is symmetrically distributed, the side fixedly connected with placing leg of moving plate, the seat.This stable effect good sub-drive rowing trainer, by design adjusting mechanism, the angle of footrest can be adjusted, solve the footrest on the existing sub-drive rowing trainer, most are not adjustable angle, only applicable to part of population, when facing different body size users, angle cannot be adjusted, this can lead to different body size users when exercising, leg cannot be done comfortable support, can lead to the effect of exercise is not ideal, the use experience of user is poor etc.

An apparatus designed to enhance the effectiveness of leg press exercises by incorporating dynamic movements that coordinate both the upper and lower body. The apparatus allows users to perform integrated leg press and chest press exercises, providing a comprehensive solution for lower body strength training. The apparatus includes a base platform with a seat and adjustable backrest to support the user in a seated position, ensuring a comfortable and healthy posture. Foot pedals are configured to move between two vertical positions in response to the user's leg movements, allowing for customizable resistance and optimal muscle engagement. Additionally, the apparatus includes a pair of handles for performing chest press exercises, adjustable to accommodate different body sizes. With weight stacks and range controllers to adjust resistance and motion, the apparatus offers a safe, efficient, and holistic approach to strength training, enhancing neuromuscular coordination and promoting natural, functional movements.

The utility model discloses a kind of mutton sheep body weight measuring device, it is related to livestock equipment technical field, including keeping cage, measuring flexible ruler and shoulder width body height measuring device, the front end outlet of keeping cage is equipped with outlet switch door, rear end import is equipped with import switch door, outlet switch door is equipped with sheep neck clamp, the inner bottom of keeping cage is equipped with electronic scale, the side of keeping cage is equipped with crossbar, shoulder width body height measuring device includes vertical rod, horizontal rod and the positioning block of sliding arrangement on horizontal rod, vertical rod is fixed on keeping cage, horizontal rod sliding arrangement is on vertical rod, two positioning block sliding arrangement is on horizontal rod, vertical rod and horizontal rod are all equipped with scale line. The utility model is convenient in measurement process, improves measurement efficiency.

The present invention is a wall-mounted, foldable shower seat with a backrest designed to enhance accessibility and comfort in bathroom settings, such as homes, hospitals, and healthcare facilities. The seat features a durable, resilient construction capable of supporting up to 440 pounds, making it suitable for individuals with varying physical abilities, including those with mobility challenges, balance issues, or larger body sizes. The foldable design allows the seat to be stored compactly when not in use, optimizing space. The shower seat incorporates stainless steel brackets and high-strength wooden planks with gaps to prevent water accumulation, ensuring hygienic use and durability. The device also includes a built-in interlocking mechanism that prevents accidental unfolding and ensures the seat remains securely in place when deployed. With rounded edges to enhance user safety and compliance with ADA standards, the invention provides a reliable, long-term solution for improving bathroom accessibility and safety.

The present invention relates to a diet guide band and, more specifically, to a diet guide band comprising a band main body closely worn on a user's body and having an elastic portion formed on at least a part thereof, the elastic portion being configured to elastically expand and contract, so that a change in body size can be easily recognized visually to continuously provide motivation for diet or motivation for maintaining a reduced body size due to dieting wherein the elastic part has a motivational mark that changes visually as the elastic part is stretched and shortened.

This disclosure provides a boar restraint device with injury reduction function, comprising: a fixing frame; a flexible restraint strap disposed on the fixing frame, wherein the protective sleeve on the surface of the flexible restraint strap is divided into multiple independently movable segments, each segment of the protective sleeve being freely retractable; a padding layer installed on the internal contact surface of the fixing frame; an adjustment device disposed at both ends of the flexible restraint strap, including slide rails and buckles, for adjusting the length of the restraint strap according to the boar's body size; and support columns disposed at the four corners of the fixing frame for raising the height of the fixing frame to prevent the boar from directly contacting the ground and causing injury; wherein the thickness of the padding layer varies at different locations on the fixing frame; and the internal contact surface of the fixing frame is provided with several protrusions. The solution of this disclosure can solve the problem of boars being injured due to their constant struggle during restraint.

The invention relates to the technical field of medical instruments, in particular to an auxiliary device for neck anesthesia nursing, which comprises an adjusting frame, a head supporting piece is arranged at the top of the front side of the adjusting frame, a chest lifting piece is arranged on the rear side of the adjusting frame, the adjusting frame comprises an adjusting bottom frame, and a neck bracket is arranged at the top of the adjusting bottom frame. By arranging the adjusting frame, the head supporting piece and the chest lifting piece, the dual functions of precise limiting and fixing of the neck of a patient and height self-adaptive adjustment are achieved, the risk caused by shaking of the neck of the patient in the anesthesia nursing process is effectively avoided, and meanwhile the individual requirements of patients of different body types are met through a height adjusting mechanism; besides, a thoracic cavity supporting function is creatively integrated, the thoracic cavity of the patient is stably supported through a mechanical linkage structure, the comfort and safety of the patient in the operation process are further improved, and efficient and reliable auxiliary support is provided for neck anesthesia nursing work in an operating room.

The utility model relates to the technical field of chairs, in particular to a chair for correcting sitting postures, which comprises a support, a chest protecting mechanism arranged outside the support and an adjusting mechanism arranged outside the support and used for adjusting the position of the chest protecting mechanism, the adjusting mechanism comprises a channel, a screw rod, an adjusting block, a through hole and a handle, and a limiting ring is fixedly mounted outside the handle. When a user uses the chair, the position of the chest protection mechanism can be adjusted according to the body condition, that is, a handle is rotated to drive a lead screw to rotate, the lead screw can drive an adjusting block to move, the adjusting block drives the chest protection mechanism to move until the chest protection mechanism moves to a proper position, and the handle can be stopped rotating at the moment; through the adjustment of the transverse position of the chest protection mechanism, the chair can adapt to the body size difference from the back to the chest of different children, provides proper chest support for each child, and ensures the use comfort, thereby ensuring the sitting posture correction effect of the chair.

The utility model relates to the technical field of measuring equipment, in particular to chicken body size measuring equipment, which effectively improves the fixing effect of a chicken in a chicken body measuring process, improves the measuring accuracy, is convenient to weigh the chicken through an electronic scale, and improves the use convenience. Comprising a base and an electronic scale which is installed on the outer side wall of the base. The device comprises a base and further comprises a supporting device, an adjusting device, a fixing device, a first guiding piece, two leg fixing pieces, a first fixing groove and a fixing mold, the first guiding piece is installed on the base through the supporting device, the supporting device is used for driving the first guiding piece to ascend and descend, and the first leg fixing pieces are fixedly installed on the outer side wall of the first guiding piece; the second group of leg fixing pieces are slidably mounted on the first guide pieces, first fixing grooves are oppositely formed in the outer side walls of the two groups of leg fixing pieces, the fixing mold is mounted on the supporting device through the adjusting device in an up-down sliding manner, and the fixing device is mounted on the supporting device and used for fixing the neck of a chicken.

The invention relates to the technical field of medical instruments, in particular to an auxiliary device for neck anesthesia nursing, which comprises an adjusting frame, a head supporting piece is arranged at the top of the front side of the adjusting frame, a chest lifting piece is arranged on the rear side of the adjusting frame, the adjusting frame comprises an adjusting bottom frame, and a neck bracket is arranged at the top of the adjusting bottom frame. By arranging the adjusting frame, the head supporting piece and the chest lifting piece, the dual functions of precise limiting and fixing of the neck of a patient and height self-adaptive adjustment are achieved, the risk caused by shaking of the neck of the patient in the anesthesia nursing process is effectively avoided, and meanwhile the individual requirements of patients of different body types are met through a height adjusting mechanism; besides, a thoracic cavity supporting function is creatively integrated, the thoracic cavity of the patient is stably supported through a mechanical linkage structure, the comfort and safety of the patient in the operation process are further improved, and efficient and reliable auxiliary support is provided for neck anesthesia nursing work in an operating room.

A carrying arrangement for carrying loads, in particular tools and / or implements, includes at least one carrying belt, in particular a shoulder belt and / or a hip belt, on the body of a user. The length of the carrying belt is adjustable in order to be adapted to the body size of the user and / or the carrying situation. The carrying belt is formed from at least three belt segments which can be positioned relative to one another in order to adjust the length of the carrying belt. A first belt segment is adjustable in discrete increments relative to a second belt segment and a third belt segment is steplessly adjustable relative to the first belt segment and / or the second belt segment.

The utility model relates to the technical field of folding beds, in particular to a folding bed armrest structure which comprises two symmetrical folding lifting mechanisms, each folding lifting mechanism comprises a blocking rod and a threaded cylinder, each blocking rod is hinged to two symmetrical sliding rods through two symmetrical hinge blocks, and the threaded cylinders are hinged to the sliding rods. The two sliding rods are slidably connected with sliding cylinders, through cooperation of the sliding rods, the sliding cylinders, the threaded rods, the threaded cylinders and the supporting and blocking rods, a handrail form can be rapidly formed or all parts can be rapidly folded and stored, the purpose of convenient folding and storing or supporting and positioning of the device is achieved, the threaded cylinders are rotated left and right to drive the blocking rods to move up and down, and the device is convenient to use. The height of the handrail can be adjusted, the purpose that the height of the handrail is conveniently adjusted through the device is achieved, and the problems that in the prior art, the adjusting angles of most of the handrails of the folding bed are concentrated between 0 degree and 90 degrees, and the requirements of users with different body types cannot be met (for example, the requirement difference of the users with the height of 160 cm and 180 cm for the height of the handrail reaches 15 cm) are solved.

The application discloses a garment design size recommendation method, including a size recommendation method of a coat and trousers, the coat including sleeves and a body, the sleeve size including a sleeve length, the body size including a body length, a sleeve length, a bust, a waist and a hip, the sleeve length of the sleeve and the body length of the coat are determined according to the height of a customer, the bust, the waist and the hip of the coat are determined according to the weight of the customer, under a height standard, the dimensions of the bust, the waist and the hip are increased by 2 cm every time the weight is increased by 2 kg; the size of the trousers includes a trouser length and a waist, the trouser length is determined according to the height of the customer, and the waist is determined according to the weight of the customer. When the garment size is determined by using the method, different body lengths are provided for users with different weights under the condition that the sleeve length and the body length are unchanged, different trousers with different waists are provided for users with different weights under the condition that the trouser length is unchanged, so that users with various body types can obtain clothes that fit well, individual needs are met, and the satisfaction of the users is improved.

The utility model relates to the technical field of pet medical treatment, in particular to a pet medical treatment fixing protection device which comprises an operation table, two first sliding grooves are formed in one side of the operation table and are arranged oppositely, two second sliding grooves are formed in the side, away from the first sliding grooves, of the operation table and are arranged in parallel, and the first sliding grooves and the second sliding grooves are arranged oppositely. Sliding blocks are installed in the two first sliding grooves and the two second sliding grooves in a sliding mode. According to the scheme, by arranging the first sliding groove, the second sliding groove and the sliding blocks, the body size of a pet can be adjusted, appropriate four-limb fixing space is customized by adjusting the positions of the sliding blocks in the sliding grooves, it is ensured that the four limbs of the pet are fixed neither too tight nor too loose through the sliding blocks, and therefore discomfort or injury to the pet is avoided; the device is simple in structure and convenient to use, the stability of the pet can be kept when the pet is moved or treated, the risk of accidental slipping or injury is reduced, the adjustability enables the device to be effectively used on multiple pets, and the cost and trouble for purchasing multiple different devices are reduced.

The utility model discloses a sheep weight and body size measuring device. The measuring device comprises a frame structure, a weight detecting assembly, a body length detecting assembly, a body height detecting assembly and a fixing assembly. An entrance door is arranged at the left end of the frame structure, and an exit door is arranged at the right end; the weight detection assembly comprises a weighing platform and a weight display instrument electrically connected with the weighing platform, the weighing platform is arranged at the bottom of the frame structure, and the weight display instrument is arranged at the rear end of the frame structure; the body length detection assembly is arranged at the front end of the frame structure; the body height detection assembly is arranged at the rear end of the frame structure and is adjacent to the body weight display instrument; the fixing assembly is arranged at the top of the exit door and used for fixing the neck of the sheep. Through the arrangement, the weight, height and length of the sheep can be ensured to the maximum extent under the condition that the sheep naturally stands. And the stability and the precision of measurement are improved.

The utility model discloses a kind of knee joint replacement postoperative rehabilitation pressing devices, including stand, one end of the stand is movably connected with movable seat, one end of the movable seat is fixedly connected with lifting seat, the both sides of the lifting seat are movably connected with telescopic plate, one end of the telescopic plate is fixedly connected with boom, the utility model has beneficial effect, first power mechanism, second power mechanism, third power mechanism and inflation mechanism are respectively driven by controller to operate, so that two groups of fixed rods can be clamped to the calf and thigh in the air, its knee is located in the just below lifting seat, finally again through first power mechanism drive lifting seat slowly lift, lifting lifting seat pushes the lifting of hanged clamping seat, clamping seat drives the lifting of connected clamping plate, clamping plate can repeatedly press the leg of clamping, structure is reasonable, it is convenient for automatic pressing of leg, less manual labor, it is convenient to adjust simultaneously, it is convenient for different body size patient to be clamped and pressed.

The utility model relates to the technical field of U-shaped groove repairing equipment, in particular to an automatic quick repairing machine for a U-shaped groove. The device comprises a repairing machine body, an adjusting device is arranged on the surface of the repairing machine body, the adjusting device comprises two fixing plates, the two fixing plates are fixedly connected with the surface of the repairing machine body, the sides, close to each other, of the two fixing plates are fixedly connected with a round rod, the arc surface of the round rod is rotationally connected with a rotating plate, and the rotating plate is fixedly connected with the surface of the repairing machine body. And two sliding grooves are formed in the surface of the rotating plate. The problems that body sizes of different operators are different, the height size of a handrail of a repairing machine body is fixed and is difficult to adapt to body characteristics of all the operators, so that when part of the operators hold the handrail to push the repairing machine, arms cannot be at comfortable heights, fatigue and discomfort are easily generated, and the repairing efficiency is high are solved. And long-time operation may cause injury to the body.

This invention relates to the field of anatomical fixation plates, and discloses an adaptive anatomical fixation plate suitable for small animals of various sizes. The plate includes a base, with a placement plate fixedly connected to the top of the base. The top of the placement plate has vertical and horizontal grooves. A trunk fixation mechanism is provided at the bottom of the placement plate, including a motor fixedly mounted on the bottom of the placement plate. A side plate is fixedly connected to the bottom of the placement plate. In this invention, by setting up a trunk fixation mechanism, the motor drives a lead screw to rotate and moves a movable seat horizontally. This is linked by a hinged rod, causing the two moving frames on both sides to move towards each other. Simultaneously, the height of the lifting plate is adjusted synchronously with an electric push rod and a round rod structure, allowing the fixation bar to automatically adapt to the size of the small animal's trunk in both the horizontal and vertical directions. This achieves precise clamping and stable positioning of experimental subjects of different body sizes, significantly improving the versatility and fixation efficiency of the device.

The utility model discloses a cattle weight and body size measuring device, which relates to the technical field of cattle breeding and comprises a limit frame, a clamping component and a chest circumference measuring mechanism. A weighing platform is arranged at the bottom of the limiting frame; a clamping mounting part of the clamping assembly is fixed on the weighing platform, one end of the clamping assembly is correspondingly hinged to the two ends of the mounting rod, and the other end of the clamping assembly is a clamping end which can be matched with the lower limb of the cattle when clamping the lower limb of the cattle; a mounting frame of the chest circumference measuring mechanism is located in the limiting frame and slidably connected with the limiting frame in the length direction. The plurality of automatic retraction pieces are fixed on the inner wall of the mounting frame at intervals; the measuring flexible rule is arranged at the retraction traction ends of the plurality of automatic retraction parts in a penetrating manner, one end of the measuring flexible rule is clamped on one of the automatic retraction parts, and the other end of the measuring flexible rule is a free end; the clamping assembly clamps the legs or other parts of the cattle, so that the cattle is prevented from moving in the measurement process, and the measurement accuracy is improved; the chest circumference measuring mechanism can automatically measure the chest circumference of the cattle, operation is convenient and safe, and the risk that the cattle may attack during manual measurement is avoided.

The invention provides a quick body shape adjusting mechanism and method applied to a trunk rehabilitation robot, and the adjusting mechanism comprises a shear type structure which comprises two guide rails rotationally connected through a rotating shaft; each guide rail comprises an upper section rail and a lower section rail; one upper-section rail is in sliding connection with the upper left skeleton, the other upper-section rail is in sliding connection with the upper right skeleton, one lower-section rail is in sliding connection with the lower right skeleton, and the other lower-section rail is in sliding connection with the lower left skeleton; wherein the two guide rails are crossed to form an area A, an area B, an area C and an area D which are distributed clockwise; the four-connecting-rod mechanism comprises four connecting rods which are sequentially hinged end to end through hinge shafts; each of the area A, the area B, the area C and the area D comprises an articulated shaft; the connecting rods and the corresponding guide rails are crossed front and back; and the hinge shafts in the area B and the area D are detachably connected with one output end of the linear driving mechanism respectively. The garment is suitable for people with different body types (body widths and heights).

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 utility model relates to specimen scanning equipment technical field, and disclose full angle three -dimensional scanning platform for animal specimen, including three soft hats, three the soft hat is provided with the body mechanism, according to the size of animal specimen, adjust the angle of two radial slide tracks of second slide rod and third slide rod, and use locating screw group to fix first slide rod, second slide rod and third slide rod, the bottom of three soft hats is changed with the opposite angle of clamping screw group respectively, makes the platform adapt to the animal specimen of different body size, and cooperate with pressure screw group and adjust the position of three slides on first slide rod, second slide rod and third slide rod respectively, and then change the relative position on three soft hats horizontal plane, and control adjusting nut changes the total length of three slides and three struts, realize the relative height of three soft hats, so that three soft hats can accurately drag the animal specimen, ensure that the bottom of animal specimen can be scanned by scanner entirely.

The application relates to the technical field of medical models, in particular to a manufacturing method and device of an individualized whole-body physical phantom, wherein the method comprises the following steps: obtaining body size parameters and physiological parameters of a target individual; then, based on the body size parameters and the physiological parameters, a digital human body surface element model of the target individual is established; based on a target tissue in the digital human body surface element model, an equivalent index of the target tissue is calculated; then, an equivalent material formula of the target tissue is determined according to the equivalent index; and finally, an additive manufacturing task of the target individual is performed according to the digital human body surface element model and the equivalent material formula, so as to manufacture a whole-body physical phantom of the target individual. Therefore, the problem that in the prior art, the whole-body phantom is usually based on fixed body size and standard posture, only covers limited body type and posture combinations, and is difficult to depict height, weight, age, gender, body fat distribution and external irradiation environment differences, thereby limiting the effectiveness of the phantom in individualized dose optimization and multi-scenario adaptation is solved.

The utility model belongs to the technical field of medical instruments, and particularly relates to a transverse adjusting assembly of a lower limb rehabilitation assisting device. Comprising a first arm assembly, a second arm assembly which is arranged opposite to the first arm assembly and matched with the first arm assembly to form a moving space, and an adjusting mechanism used for adjusting the spacing distance between the first arm assembly and the second arm assembly, and the adjusting mechanism comprises a wheel disc, a first toothed rail arranged on the first arm assembly and a second toothed rail arranged on the second arm assembly; the wheel disc is provided with wheel teeth engaged with the first toothed rail and the second toothed rail. Through forward or reverse rotation of the wheel disc, the first toothed rail and the second toothed rail drive the first arm assembly and the second arm assembly to be close to or far away from each other under the action of the wheel teeth on the wheel disc, so that the size of the movement space between the first arm assembly and the second arm assembly is adjusted; the rehabilitation auxiliary device is more suitable for the body size of the user, so that the applicability and comfort of the auxiliary device are improved.

The present application relates to the technical field of bed mattress, and proposes a kind of anti-skid support type rehabilitation treatment bed mattress, including bottom filling layer, bottom filling layer is provided with base frame, still including support edge, support buffer layer, support batten, cross bar, support positioner and self-adapting support component, support edge is arranged outside base frame, bottom filling layer is connected with support edge bottom, support buffer layer is arranged on support edge upper portion, a plurality of support battens are arranged with equal distance parallel on base frame, both ends of each support batten are provided with support seat, support seat is arranged on base frame, cross bar is arranged on the upper portion of each support batten, both ends of each cross bar are provided with support positioner, self-adapting support component is arranged on each cross bar, by the above technical solution, it is difficult to adjust the supporting force of bed mattress according to the body size of user in the prior art, and the technical problem that the fitting degree of human body curve is limited is solved.

The utility model discloses a children's seat belongs to children's safety protection equipment technical field. The utility model adopts technical scheme for a children's seat, including seat main part and the side wing of symmetrical setting at seat main part both sides, the side wing lower extreme is connected with seat main part lateral wall through rotating component rotation, be equipped with the drive assembly for driving both sides side wing synchronous mutual rotation on seat main part, the utility model discloses the synchronous mutual adjustment of both sides side wing is realized through drive assembly, realizes the accurate synchronous adjustment of both sides side wing interval, ensures the balanced force of both sides of children's body. The dynamic wrapping function of side wing effectively adapts to the protection demand of different body size children, reduces the lateral displacement amount when colliding. Mechanical linkage system improves the operation convenience, avoids the multi -step operation tediousness of traditional structure. The coordinated action of guide mechanism and rotating component enhances the stability of side wing movement track, prevents the jamming phenomenon in the adjustment process.