Zero-gravity H-point seat dummy

Abstract

The utility model relates to the technical field of vehicle testing, and discloses a zero-gravity H-point seat dummy which comprises a back plate, a waist plate, a seat plate and a five-connecting-rod mechanism, and a chest balancing weight is installed on the front face of the back plate. A waist plate balancing weight is installed on the front face of the waist plate. Thigh balancing weights and arm balancing weights are mounted on the front surface of the seat plate; the five-connecting-rod mechanism comprises a first connecting frame rod and a second connecting frame rod, the first connecting frame rod is connected with the back plate through a connecting block, the second connecting frame rod is connected with the seat plate through an H-point connecting support, and the waist plate is connected with the five-connecting-rod mechanism through a waist plate connecting support. The utility model has the beneficial effects that the maximum backrest inclination angle of the H-point dummy is 170 degrees, the dummy can be tightly attached to a seat with a large-angle backrest, the stress deformation condition of each part of a human body during collision is simulated, and the accuracy of dummy injury test data under the zero-gravity seat is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle test technical field, concretely relates to a zero gravity H point seat dummy. BACKGROUND

[0002] With the continuous development of automobile intelligentization, network connection technology, the automobile has gradually evolved into the third living space of people, and the driving comfort, especially the long-distance driving and the driving experience under the traffic jam, is particularly important, and the current zero gravity seat can improve the driving experience comfort. The basic principle of the zero gravity seat is to adjust the angle according to the curve characteristics of the human body, so that the seat surface matches the human body, and the seat fully matches the human body, so that the stress of the passenger can be released.

[0003] At present, the maximum backrest angle of the seat designed by the automobile manufacturer has reached 170 degrees, and the maximum backrest angle of the traditional H point dummy is only 115 degrees, so that the existing traditional dummy cannot be closely matched with the large-angle backrest seat, and the accuracy of the dummy injury test data under the zero gravity seat is affected. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem that the maximum backrest angle of the traditional H point dummy is only 115 degrees, cannot be closely matched with the 170-degree large-angle backrest seat, and affects the accuracy of the dummy injury test data under the zero gravity seat, aims to provide a zero gravity H point seat dummy, realizes that the maximum backrest angle of the H point dummy is 170 degrees, and the dummy can be closely matched with the large-angle backrest seat, simulates the stress deformation of each part of the human body in the collision, and improves the accuracy of the dummy injury test data under the zero gravity seat.

[0005] The utility model realizes the following technical scheme:

[0006] A zero gravity H point seat dummy, including backboard, waist board, seat plate and five connecting rod mechanisms, the front surface of the backboard is provided with a chest counterweight, the front surface of the waist board is provided with a waist board counterweight, the front surface of the seat plate is provided with a thigh counterweight and an arm counterweight, the five connecting rod mechanisms include first connecting frame rods and second connecting frame rods, the first connecting frame rods are connected with the backboard through connecting blocks, the second connecting frame rods are connected with the seat plate through H point connecting supports, and the waist board is connected with the five connecting rod mechanisms through a waist board connecting support.

[0007] The utility model discloses beneficial effect is, through installing the chest counterweight in the front of backboard, installing the waist board counterweight in the front of waist board, installing the thigh counterweight and arm counterweight in the front of seat board and the coordinated movement of five connecting rod mechanisms, can make the weight distribution of dummy more close to real human body, thereby more accurately simulating the sitting posture state of people on the seat, and the pressure distribution of body to seat, the deformation condition of seat etc. Set up five connecting rod mechanisms with the backboard is connected through the connecting block, the seat board and waist board are connected, realize H point dummy's maximum backrest inclination is 170 DEG, realize that dummy can keep close adhesion with big angle backrest seat, still because five connecting rod mechanisms can simulate the movement mode of human joint, make each part of dummy can bend, stretch, twist etc. action like real human body, and when being forced, the corresponding bending or distortion occurs, thereby simulating the deformation behavior of human skeleton, muscle etc. tissue when being forced, simulating the force deformation condition of each part of human body in the collision, improve the accuracy of dummy injury test data under zero gravity seat. Five connecting rod mechanisms guarantee the ability that backboard and waist board constitute can move according to certain law trajectory.

[0008] In some embodiments, the five connecting rod mechanism further comprises a first connecting rod, a connecting rod, a second connecting rod and a sliding block, one end of the first connecting rod is hinged with the first connecting rod, the other end is hinged with the sliding block, the sliding block is slidably connected on the connecting rod, the other end of the first connecting rod is hinged with one end of the second connecting rod, the other end of the second connecting rod is hinged with the H point connecting support, and the end of the second connecting rod away from the H point connecting support is hinged with the end of the connecting rod away from the sliding block. By hinging the first connecting rod of the five connecting rod mechanism with the sliding block, and slidably connecting the sliding block on the connecting rod, it is convenient to adjust the angle and position of the back and waist of the dummy when simulating the relaxed posture of the human body on the zero gravity seat by sliding the sliding block along the connecting rod, so that the dummy is close to the comfortable posture of the real human body on the zero gravity seat, and the sliding block moves under the driving of the connecting rod when the dummy needs to simulate the change from the sitting posture to the semi-lying posture, to drive the back and waist to change the angle and realize the conversion of the posture.

[0009] In some embodiments, the H point connecting support is in the shape of a U-shaped plate as a whole, the bottom of the H point connecting support is fixedly connected with the seat plate, an H point connecting shaft is installed on the top of the H point connecting support, both ends of the H point connecting shaft are connected with the two side walls of the opening end of the H point connecting support respectively, and the second connecting rod is hinged with the H point connecting shaft. By installing the H point connecting shaft on the top of the H point connecting support and hinging the second connecting rod with the H point connecting shaft, the five connecting rod mechanism is hinged with the seat plate.

[0010] In some embodiments, the H-point connecting bracket is vertically installed on the seat plate, and a distance is provided between the H-point connecting shaft and the bottom of the seat plate. By vertically installing the H-point connecting bracket on the seat plate and providing a distance between the H-point connecting bracket and the bottom of the seat plate, the center of mass of the dummy is within the range of the SAE J826 standard.

[0011] In some embodiments, the second connecting rod is in the shape of a U-shaped plate, the closed end of the second connecting rod is hinged to the connecting rod, and the two side walls of the open end are hinged to the H-point connecting shaft. By hinging the closed end of the second connecting rod to the connecting rod and hinging the two side walls of the open end to the H-point connecting shaft, the strength and rigidity of the connecting point are improved, thereby ensuring that the human body characteristics can be truly simulated.

[0012] In some embodiments, the second connecting rod is hinged to the H-point connecting shaft at one end away from the first connecting rod and is located inside the two side walls of the second connecting rod. By locating one end of the second connecting rod inside the two side walls of the second connecting rod, the second connecting rod moves inside the two side walls of the second connecting rod.

[0013] In some embodiments, a head space detection rod is further included, one end of the head space detection rod is hinged to the H-point connecting shaft through a connecting plate, and the other end is located above the back plate. By providing the head space detection rod, the inclination angle of the upper limbs of the dummy is obtained.

[0014] In some embodiments, two waist plate connecting brackets are provided, the waist plate connecting brackets are vertically installed on the front of the waist plate, the top ends of the waist plate connecting brackets are respectively hinged to one end of the first connecting rod away from the sliding block and one end of the second connecting rod away from the H-point connecting shaft, a waist plate counterweight connecting rod is installed on one side of the top end of the waist plate connecting bracket away from the first connecting rod, the two waist plate counterweight connecting rods are symmetrically arranged along the center line of the waist plate, and the waist plate counterweight block includes a plurality of waist plate counterweight blocks that are evenly installed on the corresponding waist plate counterweight connecting rods. By providing the waist plate connecting bracket to link the waist plate and the five-bar linkage mechanism, the real structure and function of the human body are simulated, and the waist plate counterweight block is provided as a plurality of blocks, the number of the counterweight blocks can be increased or decreased according to different seat requirements, the dummy of different weights is simulated for modulus experiments, and the universality of the dummy is improved.

[0015] In some embodiments, a lower leg connecting rod is further included, the lower leg connecting rod is in the shape of a T-shaped rod, the free end of the vertical part of the lower leg connecting rod is fixedly connected to the H-point connecting bracket, two lower legs are hinged to the transverse part of the lower leg connecting rod, and a foot plate member is connected to one end of the lower leg away from the lower leg connecting rod. By providing the lower leg connecting rod in the shape of a T-shaped rod, the lower leg is connected to the back plate.

[0016] In some embodiments, a calf weight is mounted on the calf, the calf weight is in a block shape and is mounted on the lateral side of the calf. By mounting the calf weight on the leg, the real human structure is simulated, and the accuracy of the experimental data is ensured.

[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0018] 1. By installing a chest weight block on the front surface of the back plate, a waist plate weight block on the front surface of the waist plate, and a thigh weight block and an arm weight block on the front surface of the seat plate, the weight distribution of the dummy can be closer to that of a real human body, thereby more accurately simulating the sitting posture of a person on a seat, the pressure distribution of the body on the seat, the deformation of the seat, and the like.

[0019] 2. The five-bar mechanism is further connected to the back plate through a connecting block and connected to the seat plate and the waist plate, the maximum backrest inclination angle of the H-point dummy is 170°, the dummy can closely fit the seat with a large-angle backrest, the five-bar mechanism can simulate the movement mode of human joints, each part of the dummy can bend, stretch, twist, and the like like a real human body, and corresponding bending or twisting occurs when force is applied, thereby simulating the deformation behavior of human bones, muscles, and the like under force, simulating the force deformation of each part of the human body in a collision, improving the accuracy of the dummy injury test data under the zero-gravity seat, and meeting the SAEJ826-202106 / SAEJ4002-202202 standard for automobile seats.

[0020] 3. It can be used for intelligent automobile cabin design + seat H-point measurement, zero-gravity seat design and verification, testing, and the like. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings described herein are used to provide further understanding of the embodiments of the utility model and form a part of the present application, and do not constitute a limitation on the embodiments of the utility model. In the drawings:

[0022] Figure 1 is a structural diagram of the utility model;

[0023] Figure 2 is a partial structural diagram of the utility model;

[0024] Figure 3 is a partial structural diagram of the utility model;

[0025] Figure 4 is a partial structural diagram of the utility model;

[0026] Figure 5 is a partial structural diagram of the utility model.

[0027] Markings in the drawings and corresponding component names:

[0028] Back plate 1, chest counterweight 2, waist plate 3, waist plate counterweight 4, waist plate counterweight connecting rod 41, waist plate connecting support 42, connecting rod 43, sliding block 44, first connecting rod 45, connecting block 451, second connecting rod 46, second connecting rod 461, H point connecting support 47, H point connecting shaft 471, first connecting rod 48, H point marking button 5, seat plate 6, calf counterweight 8, foot plate component 9, calf 10, thigh counterweight 11, arm counterweight 12, head space detection rod 13, calf connecting rod 14. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with embodiments and drawings, the schematic embodiment and its description of the utility model are only used to explain the utility model, and not as a limitation on the utility model.

[0030] In the entire description, the reference to "one embodiment", "an embodiment", "one example" or "an example" means that the specific features, structures or characteristics described in connection with the embodiment or example are included in at least one embodiment of the utility model. Therefore, the phrases "one embodiment", "an embodiment", "one example" or "an example" appearing in various places throughout the description are not necessarily all referring to the same embodiment or example. In addition, specific features, structures or characteristics can be combined in one or more embodiments or examples in any appropriate combination and / or subcombination. In addition, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only, and the drawings are not necessarily drawn to scale. The term "and / or" used herein includes any and all combinations of one or more of the relevant listed items.

[0031] In the description of the utility model, the orientation or positional relationship indicated by the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the utility model.

[0032] The terms "first", "second" and the like used in the utility model are only for the purpose of distinguishing corresponding components for the sake of clarity, and are not intended to limit any order or emphasize importance. In addition, the term "connection" used in this paper can be direct connection or indirect connection via other components without special description.

[0033] Example

[0034] like Figures 1-4 As shown, this embodiment provides a zero-gravity H-point seat dummy, including a backrest 1, a waist plate 3, a seat plate 6, and a five-bar linkage. A chest counterweight 2 is installed on the front of the backrest 1; a waist plate counterweight 4 is installed on the front of the waist plate 3; a thigh counterweight 11 and an arm counterweight 12 are installed on the front of the seat plate 6; the five-bar linkage includes a first connecting rod 45 and a second connecting rod 46. The first connecting rod 45 is connected to the backrest 1 through a connecting block 451, and the second connecting rod 46 is connected to the seat plate 6 through an H-point connecting bracket 47. The waist plate 3 is connected to the five-bar linkage through a waist plate connecting bracket 42.

[0035] See Figure 1 The arm counterweight 12 and thigh counterweight 11 each include multiple units. The arm counterweight 12 is located on both sides of the H-point connecting bracket 47, and the thigh counterweight 11 is located at the end of the seat plate 6 away from the arm counterweight 12. The bottom of the connecting block 451 is provided with an oblong hole, through which bolts are connected to the back plate 1. The top of the connecting block 451 is provided with a slider 44, and the bottom of the first connecting rod 45 is provided with a sliding groove, in which the slider 44 is slidably connected.

[0036] See Figures 2-5 The five-bar linkage further includes a first link 48, a connecting rod 43, a second link 461, and a slider 44. One end of the first link 45 is hinged to the first link 48, and the other end is hinged to the slider 44. The slider 44 is slidably connected to the connecting rod 43. The other end of the first link 48 is hinged to one end of the second link 461. The other end of the second link 461 is hinged to the H-point connecting bracket 47. The end of the second link 461 away from the H-point connecting bracket 47 is hinged to the end of the connecting rod 43 away from the slider 44. By hinged to the first link 45 of the five-bar linkage and the slider 44, and slidably connected to the connecting rod 43, the slider 44 slides along the connecting rod 43 to adjust the angle and position of the dummy's back and waist when simulating the relaxed posture of the human body in a zero-gravity seat. This allows the dummy to fit snugly against the zero-gravity seat, making it closer to the comfortable posture of a real human body in a zero-gravity seat. Furthermore, when the dummy needs to simulate a change from a sitting posture to a semi-reclining posture, the slider 44 moves under the action of the linkage, driving the back and waist to change angles and achieve posture transformation.

[0037] See Figure 1The outer side of the seat plate 6 is provided with an H point marking button 5, which provides an important reference for the layout and design of vehicle seats, instrument panels, steering wheels and other components, ensures that these components are coordinated in space, meets the ergonomic requirements, and ensures the comfort and operation convenience of the driver and passengers.

[0038] Referring to Figures 2-5 The H point connecting bracket 47 is in the shape of a U-shaped plate as a whole, the bottom of the H point connecting bracket 47 is fixedly connected with the seat plate 6, the top of the H point connecting bracket 47 is provided with an H point connecting shaft 471, both ends of the H point connecting shaft 471 are connected with the two side walls of the opening end of the H point connecting bracket 47 respectively, and the second connecting rod 46 is hinged with the H point connecting shaft 471. By installing the H point connecting shaft 471 on the top of the H point connecting bracket 47 and hinging the second connecting rod 46 with the H point connecting shaft 471, the five connecting rod mechanism is hinged with the seat plate 6.

[0039] Referring to Figures 2-5 The H point connecting bracket 47 is vertically installed on the seat plate 6, and the H point connecting shaft 471 has a set distance from the bottom of the seat plate 6. By vertically installing the H point connecting bracket 47 on the seat plate 6 and having a set distance from the bottom of the seat plate 6, the center of mass of the dummy is within the range of the SAEJ826 standard.

[0040] Referring to Figures 2-5 The second connecting rod 46 is in the shape of a U-shaped plate as a whole, the closed end of the second connecting rod 46 is hinged with the connecting rod 43, and the two side walls of the opening end are hinged with the H point connecting shaft 471. By hinging the closed end of the second connecting rod 46 with the connecting rod 43 and hinging the two side walls of the opening end with the H point connecting shaft 471, the strength and rigidity of the connecting point are improved, and the human characteristics are simulated.

[0041] Referring to Figures 2-5 The second connecting rod 461 is hinged with the H point connecting shaft 471 at the end away from the first connecting rod 48 and is located inside the two side walls of the second connecting rod 46. By locating the end of the second connecting rod 461 inside the two side walls of the second connecting rod 46, the second connecting rod 461 moves inside the two side walls of the second connecting rod 46.

[0042] Referring to Figures 2-5 It also comprises a head space detection rod 13, one end of the head space detection rod 13 is hinged with the H point connecting shaft 471 through a connecting plate, and the other end is located above the back plate 1. By arranging the head space detection rod 13, the inclination angle of the upper limbs of the dummy is obtained.

[0043] Referring to Figures 2-5The waist plate connecting support 42 is provided with two, the waist plate connecting support 42 is vertically installed on the front of the waist plate 3, the top two ends of the waist plate connecting support 42 are respectively hinged with the one end of the first connecting rod 45 away from the sliding block 44 and the one end of the second connecting rod 461 away from the H point connecting shaft 471, the top of the waist plate connecting support 42 is provided with a waist plate counterweight connecting rod 41 away from the first connecting rod 45, two waist plate counterweight connecting rods 41 are symmetrically arranged along the center line of the waist plate 3, the waist plate counterweight 4 includes a plurality of, a plurality of waist plate counterweights 4 are evenly arranged on the corresponding waist plate counterweight connecting rod 41. By setting the waist plate connecting support 42, the waist plate 3 is connected with the five connecting rod mechanism to realize the simulation of the real structure and function of the human body, and the waist plate counterweight 4 is provided as a plurality of, the number of counterweights can be increased or decreased according to different seat requirements, the dummy of different weight is realized for modulus experiment, and the universality of the dummy is improved.

[0044] Referring to Figures 2-5 Further comprising a lower leg connecting rod 14, the lower leg connecting rod 14 is T-shaped rod, the free end of the vertical part of the lower leg connecting rod 14 is fixedly connected with the H point connecting support 47, the horizontal part of the lower leg connecting rod 14 is hinged with two lower legs 10, and the one end of the lower leg 10 away from the lower leg connecting rod 14 is connected with a foot plate member 9. By setting the lower leg connecting rod 14 as a T-shaped rod, the lower leg 10 is connected with the back plate 1.

[0045] Referring to Figures 2-5 The lower leg 10 is provided with a lower leg counterweight 8, the lower leg counterweight 8 is blocky and is installed on the outer side of the lower leg 10. By installing the lower leg counterweight 8 on the leg, the real human body structure is simulated, and the accuracy of experimental data is ensured.

[0046] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only a specific embodiment of the utility model, and is not used to limit the protection scope of the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A zero-gravity H-point seat dummy, characterized by The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block.

2. The zero-gravity H-point seat dummy of claim 1, wherein, The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block.

3. The zero-gravity H-point seat dummy of claim 2, wherein, The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block.

4. The zero-gravity H-point seat dummy of claim 3, wherein, The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block.

5. The zero-gravity H-point seat dummy of claim 3, wherein, The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block.

6. The zero-gravity H-point seat dummy of claim 5, wherein, The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block.

7. The zero-gravity H-point seat dummy of claim 3, wherein, The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block.

8. The zero gravity H-point seat dummy of claim 2, wherein, The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block.

9. The zero-gravity H-point seat dummy of claim 3, wherein, The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block.

10. The zero-gravity H-point seat dummy of claim 9, wherein, The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first connecting rod, a connecting rod, a second connecting rod and a sliding block. The utility model relates to a five-bar linkage mechanism, which comprises a back plate, a waist plate, a seat plate, a first

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