Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

162 results about "Back support" patented technology

An automatic drilling machine for brake pad steel backing

An automatic drilling machine for brake pad steel backing includes a drilling device, a base, a position adjustment device, a steel backing support device, and a material conveying device. The drilling device includes a central shaft, a support frame, a moving frame, a guide cylinder, and a linkage mechanism. The support frame is moved by the position adjustment device. The central shaft is slidably and rotatably mounted on the support frame, and a drill bit is fixedly mounted at the front end of the central shaft. The moving frame is slidably and rotatably mounted on the support frame, and a plurality of flip plates are rotatably and elastically mounted at the front end of the moving frame. A cleaning brush is fixedly mounted on the inner side of the flip plate, and a guide groove connecting the inner and outer sides is provided. The guide cylinder is slidably and elastically mounted on the support frame through a guide cylinder mounting frame, and an inlet communicating with a coolant pipe is provided on the guide cylinder, and a guide groove is fixedly mounted thereon. A cutting blade mounting ring is rotatably mounted inside the guide cylinder, and a plurality of cutting blades are fixedly mounted on the cutting blade mounting ring. This invention can effectively guide the flow direction of the coolant and cut long drill chips into small segments during drilling.
Owner:HANGZHOU LEMA BRAKE TECH CO LTD

Anti-spasm body position placing pad for hemiplegic patient

ActiveCN224523484USupine decubitusFoot supports
The utility model discloses a kind of anti-spasm body position laying pad of hemiplegic, it is related to medical instrument technical field, upper limb pad second end is movably connected with lower limb pad first end;Liftable side stop pad is movably equipped on upper limb pad, shoulder groove is equipped on the upper limb pad of one side of side stop pad, arm pad is movably equipped with in cooperation outside shoulder groove, wall groove is opened on arm pad;Two foot supporting members are movably equipped on lower limb pad, leg pad is movably equipped on one side of lower limb pad;By the cooperation of liftable side stop pad and magnetic support plate that can overturn, patient is supported to patient back when side-lying, side stop pad is overturned to first placing groove by 180 degrees, so that side stop pad bottom upper limb pad is flush, after turning out, arm pad can be used for the arm of lateral decubitus to be inserted into the wall groove of arm pad, arm pad is parallelly attached on one side of upper limb pad, can be folded and reduced in size conveniently carried or used for supine position.
Owner:LULIANG PEOPLES HOSPITAL (LÜLIANG HOSPITAL AFFILIATED TO SHANXI MEDICAL UNIV ELEVENTH CLINICAL COLLEGE OF SHANXI MEDICAL UNIV)

Foldable electric wheelchair

The utility model relates to the field of wheelchair discloses a kind of foldable electric wheelchair, comprising: back frame, to provide back support;Seat cushion frame is used to provide hip leg support, the lower part of the back frame is pivotally connected with the rear portion of the seat cushion frame, leg frame, including front leg support and rear leg support, the front leg support is fixedly connected with seat cushion frame, the rear leg support is hinged with the front leg support, the rear leg support is also provided with the first connecting rod linked with the back frame.The beneficial effects of the above technical solution are: the stability of the seat cushion frame can be improved by fixing the front leg support and the seat cushion frame, and the comfort is ensured.The linkage of the rear leg support and the back frame can make it easier to fold up the back frame and the rear leg support, making the folding and unfolding of the wheelchair more rapid.
Owner:杭州园祺工业设计有限公司

A skin tensioning device suitable for use in a thoracentesis

PendingCN122320617APuncture procedureThoracic structure
The application discloses a skin tension device suitable for thoracentesis, and relates to the technical field of thoracentesis. The tension device comprises a base, a moving stretching component, a thoracentesis limiting component, an angle adjusting device and a supporting device. When working, a patient sits on the base, the height of the base can be adjusted according to the height of the patient, and the supporting device can provide suitable back support for the patient. After the patient sits down, medical staff drives the angle adjusting device to adjust the whole thoracentesis tension device to a suitable angle of the thoracic cavity area to be punctured of the patient, then the moving stretching component generates a moderate tension on the skin, and the skin at the puncture site is taut, thereby creating good conditions for subsequent puncture operation. Meanwhile, the thoracentesis limiting component can preliminarily guide and limit the direction and depth of the puncture needle. The skin is taut through the moving stretching component, and the application has the effect of meeting different puncture requirements.
Owner:ZHONGSHAN HOSPITAL FUDAN UNIV

An adjustable backrest and headrest stroller for children

ActiveCN224277265UAdapt to use needsadd supportCarriage/perambulator accessoriesClassical mechanicsBack support
This utility model relates to the field of children's stroller technology and discloses a children's stroller with an adjustable backrest and headrest. It includes a base, a back support hinged to one end of the base, a protective frame hinged to the end of the base near the back support, a backrest and headrest assembly in front of the back support, and an adjustment groove on the side of the back support away from the backrest and headrest assembly. An adjustment component for adjusting the backrest and headrest assembly is provided within the adjustment groove. The adjustment component includes a fixed seat, which is fixedly installed on the side of the backrest and headrest assembly near the back support. A sliding groove is provided on the side of the fixed seat away from the backrest and headrest assembly, and symmetrically arranged inserts are provided within the sliding groove. The outer end of each insert is inserted into a slot symmetrically opened in the inner wall of the adjustment groove, and there are several slots. This utility model achieves height adjustment of the backrest and headrest assembly through the adjustment component. Combined with the guiding and limiting functions of the guide seat and guide block, the limiting groove and the limiting block, and the side panel angle adjustment, it adapts to the needs of different children and expands its applicability.
Owner:河北新仕嘉玩具有限公司

Display and display device

This invention relates to displays and display devices. The display of this invention is deformable from a first state to a second state, wherein the first state is a planar state and the second state is a curved surface state with changed curvature. The display includes: a flexible display panel; a movable hinge located on the back of the flexible display panel, capable of deforming in response to bending deformation during the transition from the first state to the second state; and a non-elastic plate coupled to the back of the movable hinge, lacking extensibility. The non-elastic plate wrinkles in the first state and unfolds in the second state, limiting the curvature of the display. The display device of this invention can be extended or retracted, extended when needed and retracted when not needed, thereby reducing the size of the exposed screen. The rigidity of the display portion is improved through a back support structure and a non-elastic plate that prevents reverse bending deformation, thus preventing damage to the display within the flexible structure.
Owner:LG ELECTRONICS INC

Seating system

A seat of a seating row comprises a seat bottom including a bottom cushion having a bottom support and a bottom support changer. The seat comprises a seat back coupled to the seat bottom and including a back cushion having a back support and a back support changer. The back support changer and the bottom support changer move the back support and the bottom support, respectively, between a raised position in a flat configuration and a lowered position in a contour configuration
Owner:FAURECIA AUTOMOTIVE SEATING LLC

A heart ultrasound examination body position auxiliary device

ActiveCN224403679UEasy to adjustAccurately matches body widthPatient needBody positions
The utility model discloses a kind of heart ultrasonic examination body position auxiliary devices, device realizes the accurate and flexible support to patient body position. When patient needs to adjust to left lateral position, medical staff only needs to push out to suitable position to pillow, and lock bolt is clamped into locking slot, back support setting can be quickly completed, greatly simplify the body position adjustment process, save preparation time before examination. In addition, device can select appropriate number of pillow according to different body type and examination demand of patient, push out and fix, and the distance of pillow pushing out also has multiple choices, can accurately match the body width of patient and required lateral angle, to improve the adaptation of device to patient, ensure that every patient can obtain comfortable support in examination process, help patient better cooperate with examination, and then improve the accuracy and reliability of examination.
Owner:THE 928TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE

A mounting device and a snow sweeping robot

ActiveCN224498121UControl theoryBack support
The utility model relates to robot technical field especially, and it is a kind of mounting device and snow sweeper robot. In mounting device, first support frame is used to be fixedly installed on the body of snow sweeper robot;Second support frame includes the back frame of vertical arrangement and the support plate of horizontal arrangement on back frame, and back frame is detachably connected with first support frame;Support plate is used to support the mounting piece to be hung, and the opposite ends of support plate are respectively provided with first vertical plate, second vertical plate, and first vertical plate connects the bottom end of back frame;Back frame includes first back part support rod and second back part support rod;Binding assembly includes first binding piece and second binding piece, and first binding piece connects first back part support rod and second vertical plate, and second binding piece connects the opposite ends of second back part support rod, and first binding piece and second binding piece are used to limit the mounting piece to be hung on support plate in the utility model, and the mounting piece to be hung is installed on second support frame and has better stability.
Owner:SHENZHEN HANYANG TECHNOLOGY CO LTD

A direct current charging pile charging conversion device

The utility model discloses a direct current charging pile charging conversion device of electric automobile charging pile device technical field, include: bottom plate, panel, backboard, joist, upper crossbeam, side stand, back support, insulating support, negative pole copper bar, positive pole copper bar, alternating current A phase copper bar, alternating current B phase copper bar and alternating current C phase copper bar. The direct current charging pile charging conversion device provided by the utility model can realize the upper alternating current copper bar input and the lower direct current copper bar output of the back portion of the direct current charging pile charging conversion device, and the structure is clear, the wire arrangement is beautiful and neat, the production manufacturing cost is greatly reduced, and the assembly efficiency is improved.
Owner:NANJING NENGRUI ELECTRIC POWER TECH CO LTD

A type of flat-lying transfer machine

This utility model relates to a supine patient transfer machine, including a base, a support seat, and a lifting mechanism. The support seat is mounted above the base via the lifting mechanism. A horizontal leg support is hinged to the front end of the support seat, and a horizontal back support is hinged to the rear end. A telescopic cylinder is hinged to the bottom of the support seat. The bottom back of the back support is hinged to the telescopic rod of the telescopic cylinder. The telescopic rod is also hinged to a connecting rod, which extends to the leg support and is hinged thereto. The telescopic cylinder can drive the back support to rotate upward around the rear end of the support seat, and simultaneously drive the leg support to rotate downward around the front end of the support seat via the connecting rod. The supine patient transfer machine provided by this utility model controls the height of the transfer machine through the lifting mechanism, making it easy to adapt to beds of different heights. This allows patients to be easily transferred onto the transfer machine, reducing patient discomfort. Simultaneously, the mechanical lever structure allows the backrest to rise and the leg support to lower, transforming the transfer machine into a wheelchair mode for convenient daily care.
Owner:BAODING AIZHUZHIJI TRADING CO LTD

A multifunctional assembled wheelchair

The utility model discloses a multifunctional assembled wheelchair belongs to medical instrument technical field. Including bottom support subassembly with cooperation and assembly bottom support subassembly top back support subassembly, bottom support subassembly includes two L type support frame and two vertical rods, and vertical rod and support frame one to one correspond, the long side end of support frame is provided with the connector, and the connector is set on vertical rod, and vertical rod sets up hollow, back support subassembly includes two outer tube rods and two can splice and assemble backrest board, and backrest board and outer tube rod one to one correspond, the bottom of outer tube rod is detachable connection with vertical rod, and one side of backrest board is rotatably connected with outer tube rod, the inside slide coupling of outer tube rod has the inner tube rod, and the top of inner tube rod is hinged with handle. The utility model discloses a multifunctional assembled wheelchair replaces the walking aid or crutch and uses after back support subassembly dismounts, reaches the effect of the quick replacement tool according to the demand while the effect of the reduction of carrying workload.
Owner:CHANGZHOU HEALTH HIGHER VOCATIONAL & TECH SCHOOL

Supine restraint device used for experiments on monkey eyes

ActiveCN224441514UDeep anesthesiaConditioned reflex
This utility model relates to the field of restraint technology for laboratory monkeys, specifically to a supine restraint device for eye experiments on laboratory monkeys. The device includes: a support plate with a groove, and a rotating seat extending along the groove; a head support component connected to the rotating seat and tiltable at a predetermined angle relative to the rotating seat; and a back support component connected to the groove and movable relative to the support plate along the length of the groove to a predetermined position. This restraint device supports the laboratory monkey in a supine position through three support points: head, back, and buttocks. This ensures the monkey is in a neutral position, preventing lateral tilting and facilitating intraocular injection, while minimizing restraint. This allows for observation of conditioned reflexes in monkeys under deep anesthesia and prevents accidental death.
Owner:DINGTAI MEDICINE RES CO LTD

Ear-nose injury rehabilitation training device

The application belongs to the technical field of medical equipment, and particularly relates to an ear-nose injury rehabilitation training device, which comprises a seat body, a back supporting structure and a rehabilitation auxiliary structure, the back supporting structure is installed on the back side of the seat body, and the rehabilitation auxiliary structure is installed on the front side of the top end of the back supporting structure; the rehabilitation auxiliary structure comprises sliding frames, opening-closing plates and a nose mask, two sliding frames are oppositely installed on the back supporting structure and are in sliding connection with the back supporting structure; the opening-closing plates are hingedly connected to the free ends of the sliding frames, and the free ends of the two opening-closing plates are magnetically connected; one of the opening-closing plates is provided with an extension rod, and the end of the extension rod close to the back supporting structure is connected with the nose mask; in the application, the nose mask is regularly driven by the extension rod to close the nose of a patient, so that the patient can slowly blow air according to the action of the eustachian tube function training, the active ventilation capacity of the eustachian tube is enhanced, the coordination of the eustachian tube opening is strengthened, the training difficulty is reduced, and medical care resources are not occupied.
Owner:中国人民解放军海军青岛特勤疗养中心

Chair back support (JX71100PRO)

1. Name of the product in this design: Chair back support (JX71100 PRO). 2. Purpose of this design: As a chair back support. 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.
Owner:安吉杰兴家居用品有限公司

Knee joint rehabilitation training device and training method thereof

The invention relates to a knee joint rehabilitation training device, which belongs to the technical field of rehabilitation training, and comprises a bearing assembly, a connecting assembly, a connecting arm I, a connecting arm II, a shank assembly, a driving assembly, a damping assembly and an adjusting assembly, the connecting assembly is arranged below the bearing assembly; the first connecting arm is arranged on the connecting assembly in a sliding mode. The second connecting arm is rotationally arranged on the connecting assembly. The shank assembly is rotationally arranged on the first connecting arm and the second connecting arm. The driving assembly is arranged on the connecting assembly, and the output end of the driving assembly is connected with the first connecting arm. The damping assembly is arranged on the connecting assembly and is connected with the driving assembly; the adjusting assembly is arranged on the damping assembly. Impedance training and auxiliary training can be carried out.
Owner:JIANGSU FOOD & PHARMA SCI COLLEGE

Exoskeleton robot capable of adapting to different heights and method for adjusting the wearing thereof

The application provides an exoskeleton robot capable of adapting to different heights and a wearing adjustment method thereof. The exoskeleton robot comprises a back supporting mechanism, two top ends of thigh length adjustment mechanisms rotatably connected with the back supporting mechanism, and two top ends of calf length adjustment mechanisms rotatably connected with the two thigh length adjustment mechanisms. The length of the two thigh length adjustment mechanisms is adjusted to adapt to the length of the thigh link of the human body, and the length of the two calf length adjustment mechanisms is adjusted to adapt to the length of the calf link of the human body, so that the exoskeleton robot can adapt to human bodies of different heights, without the assistance of personnel, simplifying the adjustment operation, greatly shortening the wearing adjustment time, and solving the problems of long time consumption and complicated wearing adjustment of the existing exoskeleton robot in adapting to the height adjustment of the human body.
Owner:NORTHEASTERN UNIV FOSHAN GRADUATE SCHOOL OF INNOVATION

Puncture device for neurology nursing

This invention relates to the field of medical devices, specifically to a puncture device for neurological nursing, comprising a frame, a bed board, and a limiting mechanism. The bed board is vertically and horizontally positioned below the limiting mechanism. The limiting mechanism includes a head and back limiting unit, a hip and leg limiting unit, and a slide rail unit. The slide rail unit includes two slide rails connected to the frame, with the width of the bed board and the length of the guide rails being less than the distance between the two slide rails. The head and back limiting unit includes a head and back support frame slidably connected to and fixed to the slide rails, a head and back limiting block rotatably connected to the head and back support frame, and an upper body support block perpendicularly and fixedly connected to the head and back limiting block. The hip and leg limiting unit includes a hip and leg support frame slidably connected to and fixed to the slide rails, a hip and leg limiting block rotatably connected to the hip and leg support frame, and a lower body support block perpendicularly and fixedly connected to the hip and leg limiting block. This technical solution helps to address safety issues arising from patients' easily changing lying positions, lumbar twisting during position adjustments, and orthostatic hypotension.
Owner:THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV

A laser-mig hybrid welding process method for 10mm thick 5083 aluminum alloy plate

PendingCN122299179AThick plateShielding gas
This invention discloses a laser-MIG hybrid welding process for 10mm thick 5083 aluminum alloy plates. This method optimizes the matching relationship between laser power and back support conditions, specifically using a laser power of 2800W to 3100W, preferably 3100W. Simultaneously, an aluminum backing plate is placed on the back of the weld. Combined with specific welding current (150A), speed (0.4 m / min), and shielding gas (argon double-sided protection), this process achieves high-quality single-pass welding of 10mm thick 5083 aluminum alloy plates. This process effectively solves the problems of insufficient penetration and microstructure degradation caused by excessive heat input in traditional welding methods, as well as defects in laser-MIG hybrid welding such as poor weld formation (sagging or collapse), microstructure coarsening, and segregation caused by improper parameter matching. It can obtain welded joints with good penetration, aesthetically pleasing formation, and relatively uniform and dense microstructure, providing a reliable process solution for the efficient and high-quality manufacturing of medium-thick plate aluminum alloy structures in fields such as shipbuilding and rail transportation.
Owner:TONGFANG JIANGXIN SHIPBUILDING CO LTD +1

One-piece vest

This utility model discloses an integrated vest, including a vest body with a front chest piece positioned at the chest area. Inside the front chest piece are two separately positioned left and right molded cups. An adjustable connecting component is located in the middle region between the left and right molded cups, configured to selectively connect or disconnect them. A horizontally positioned support portion is located on the inner side of the vest body corresponding to the underbust area. An integrated back support structure is fixedly fitted to the back area of ​​the vest body. The back support structure includes at least two restraint pieces, each with its upper end connected to the shoulder straps and its lower end connected to a horizontally positioned restraint portion. Both ends of the restraint portion extend to the side seams of the vest and connect with the ends of the support portion at the side seams to form a closed-loop structure. This design solves the problems of poor support and lift for the chest and incompatibility with different chest sizes found in traditional vests.
Owner:GUANGZHOU RUNWEI TECH CO LTD

Stadium dedicated to mobile robotics

PendingKR2020260000954URoboticsSimulation
The present invention relates to a competition venue for the mobile robotics category of regional and national skills competitions. The mobile robotics stadium according to the present invention is characterized by being able to connect a left main body (8) and a right main body (9), installing a horizontal adjustment seat (7) at the bottom, connecting upper and lower upper plate supports (5) and left and right upper plate supports (6) to connect to the T-shaped column (2) and L-shaped column (1) bodies to support them upright, and connecting a T-shaped back support (3) and a straight back support (4). As such, it is possible to install them with uniform specifications so there is no imbalance among the players, easy to move and store, and reusable after use, thus providing a cost-saving effect.
Owner:HONGIK PRODUCTS CO LTD

Motion mechanism for a chair and chair

ActiveUS12667194B2Rotational axisBack support
A motion mechanism for a chair effects a coordinated movement of a chair seat and chair back. The motion mechanism comprises a mechanism configured to support the chair seat and to couple the chair seat to a chair base assembly, a first back support configured to couple the chair back to the mechanism, and a second back support configured to couple the chair back to the mechanism. A first end of the first back support and a first end of the second back support are coupled via rotary connections to the mechanism. A second end of the first back support and a second end of the second back support are configured for coupling to the chair back. An axis of rotation of the first rotary connection extends in a front-rear direction of the chair and an axis of rotation of the second rotary connection extends in the front-rear direction.
Owner:L & P PROPERTY MANAGEMENT CO

A folding chair with adjustable backrest for outdoor use

The utility model relates to the field of outdoor folding chair, concretely relates to an outdoor folding chair with adjustable backrest, which comprises: a foldable and storable base folding support assembly, and a support assembly mounted in a detachable manner on the base folding support assembly, a first connecting assembly and a second connecting assembly provided on the support assembly are arranged between the support assembly and the base folding support assembly, and the support assembly and the base folding support assembly are matched, when the horizontal support part in the support assembly is damaged, the horizontal support part and the damaged part of the support bottom are torn along the gap, the back support part is detached from the backrest support seat, and the back support part is installed on the front end connecting piece, so that the back support part for supporting the back is replaced by the horizontal support part for temporarily horizontally supporting the user.
Owner:HENAN SONGDE OUTDOOR PRODUCTS CO LTD

Lower back support (2 types)

1. Name of the product in this design: Waist support (2 designs). 2. Purpose of this design: For use as a waist support. 3. The key design features of this product are the combination of shape and pattern. 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.
Owner:HUZHOU JIEKAI SPORTS TECHNOLOGY CO LTD

Silent smart electric bed

The utility model belongs to the technical field of electric bed, concretely relates to a mute intelligent electric bed. The mute intelligent electric bed includes bedstead, two movable bed boards and two turnover driving devices, and the movable bed board includes the back support frame and the leg support frame of interval arrangement, and the turnover driving device includes first turnover mechanism and second turnover mechanism, and the first turnover mechanism includes first push rod, first movable slot, first lubricating grease layer, first sliding block and first drive assembly. Through the specific structure of limiting first turnover mechanism, when first drive assembly drives first sliding block to move back and forth in first movable slot, first sliding block can be contacted with first movable slot and first lubricating grease layer, and then the resistance between first sliding block and first movable slot is reduced, and the sound of first sliding block and first movable slot friction is reduced, the function of mute adjusting back support frame is realized, and the user on another movable bed board is avoided from being influenced by the noise when using one movable bed board.
Owner:QUANZHOU XIANGLU TECHNOLOGY CO LTD

Reclining chair

This chair features a slim design with a thin seat while incorporating a synchronized reclining function. [Solution] The base 6 is a shallow tray shape, and a compression coil spring 23 is arranged horizontally inside it. The back support frame 7 is connected to a downward-facing pivot 9 that protrudes downward from the lower surface of the base 6, and the downward-facing tip 8 of the back support frame 7 is connected to the downward-facing pivot 9. The rear part of the seat support member 16 is connected to an upward-facing projection 21 of the back support frame 7, and the movable spring support 25 at the front end of the compression coil spring 23 is supported at the front end of the seat support member 16. The seat support member 16 is almost entirely fitted into a recess 34 of the seat inner shell 14.
Owner:ITOKI CORP

Neck support for postoperative care of patients with thyroid gland diseases

The utility model discloses a kind of neck brace for nursing after operation of department of gynaecology and breast, it is related to the field of neck brace, including support support, two pieces of support support are movably installed between back support, and the inside of back support is provided with cavity, the inside of back support is rotatably installed with rotating rod, and the outer ring of rotating rod is provided with thread, and thread and the thread groove reserved in the inside of connecting rod are present thread connection, connecting rod and support support present fixed connection, the outer ring of rotating rod is fixedly sleeved with push block. The utility model drives rotating rod rotation by pushing push block, two connecting rods of rotating rod thread connection can occur linear type towards or away from position movement, when needing to wear neck brace, the spacing between two support supports can be increased, and then after wearing neck brace, the rotation of rotating rod can be reversed to drive the size of the gap between two support supports to be fine-tuned until support support is properly fitted neck portion, so that neck brace when adjusting will not affect neck wound.
Owner:AFFILIATED HOSPITAL OF NANTONG UNIV

A nursing bed with a head support

This utility model relates to the field of nursing beds and discloses a nursing bed with a headrest, including a bed frame and a base frame. A hip support plate is fixedly connected to the middle of the bed frame. A back support plate is rotatably connected to one side of the hip support plate, and a thigh support plate is rotatably connected to the other side of the hip support plate. A head support plate is rotatably connected to the side of the back support plate away from the hip support plate, and a calf support plate is rotatably connected to the side of the thigh support plate away from the hip support plate. A first lifting assembly is provided at the bottom of the hip support plate, a second lifting assembly is provided at the bottom of the bed frame, and a bed surface lifting assembly is provided at the bottom of the bed frame. In this utility model, by setting the first lifting assembly, when the lifting device starts to operate, the first electric push rod extends and retracts outward, thereby driving the irregular connecting rod and the first connecting rod to move, so that the headboard moves first. After the headboard has finished moving, the backboard will start to move.
Owner:HEBEI DUBANG MEDICAL EQUIP CO LTD