Seat mechanical property test system under static load

Abstract

The utility model relates to the technical field of motor vehicle seat testing, in particular to a seat mechanical property testing system under a static load. The utility model discloses a seat mechanical property test system under a static load. The system comprises a seat fixing device, a mold library, an operation device and a control device. The mold library comprises a mold frame and a mold device. The mold frame is provided with a plurality of containing positions. The mold device comprises a hip mold, a back mold, a back and hip integral mold and a back local mold which are manufactured by imitating the local shape of a human body. The connecting mechanism comprises a connecting assembly, and the connecting assembly comprises a sensor. The operating device comprises a second quick-change part, and the second quick-change part is detachably connected with the first quick-change part. The seat mechanical property testing system under the static load has the advantages that the occupied space of equipment is reduced, the testing process conforms to the static load borne by an actual automobile, and the testing result accurately and truly reflects the mechanical property of an actual seat.

Description

Technical Field

[0001] The utility model relates to the technical field of motor vehicle seat testing, in particular to a seat mechanical performance testing system under static load. Background Art

[0002] During vehicle manufacturing, numerous tests are conducted on various components to ensure safety, operability, and comfort. During driving, bumps in the vehicle cause impacts on the seats, which in turn create a rebound force. The magnitude of this rebound force determines passenger comfort, and this rebound force is determined by the seat's structure and material. Therefore, testing seat comfort under static load is a key test item during vehicle production.

[0003] The comfort test of motor vehicle seats has become a must-test item for all manufacturers. For example, the Chinese invention patent with publication number CN106326601A discloses a detection device and method for improving the measurement uncertainty of the static load of automobile seats. The detection device includes a base, a frame, a backrest control module, a cushion control module, a drive module and a control cabinet, wherein the frame is arranged on the base, the backrest control module is assembled on the column on one side of the frame, and the cushion control module is assembled on the crossbeam at the upper end of the frame. The backrest control module and the cushion control module are both connected to the control cabinet and controlled by the control cabinet. The steps are: Step 1, select a seat sample; Step 2, install the seat on a matching body fixture; Step 3, pressurize; Step 4, load; Step 5, perform initial compression; Step 6, draw a load-deformation diagram; Step 7, record parameters; Step 8, calculate uncertainty; Step 9, issue a report. The above-mentioned patent is used to test automobile seats under static loads. This patent applies a static load to the backrest through the backrest control module and to the seat cushion through the seat cushion control module. The test site is equipped with a large frame, which occupies a large space. The backrest control module and the seat cushion control module are both fixed on the frame. The test only applies static loads through the two modules, but the loaded loads are different from the loads loaded on the actual human body, and the body characteristics of the human body are not taken into account. Therefore, the test process is quite different from the static load borne by the actual car, and the test results are inaccurate and cannot reflect the mechanical properties of the actual seat. Utility Model Content

[0004] In view of this, the present invention aims to provide a seat mechanical performance testing system under static load, which adopts a test field and a parking lot. A mold rack for placing various mold devices is provided on the test field. The mold body is made in the shape of a part of the human body. The mold body is fixed with a connecting mechanism. The connecting mechanism is provided with a first quick-change part. The test field is also provided with an operating device. The end of the mechanical arm of the operating device is connected with a force-applying component and a second replacement part. The first quick-change part and the second replacement part cooperate with each other. A seat fixing device is provided in the test field for fixing the seat. The mechanical arm picks up the mold device and moves it to the seat. A static load is applied to the mold device through the force-applying component. Motor vehicles are parked in the parking lot. The test can apply a static load to the actual motor vehicle seat and conduct the test, which solves the problems of large space occupied by the equipment, large gap between the test process and the static load borne by the actual car, inaccurate test results, and failure to reflect the mechanical properties of the actual seat.

[0005] To solve the above problems, the present invention provides a seat mechanical performance testing system under static load, comprising:

[0006] Test sites, including:

[0007] A seat fixing device, used to fix the seat, wherein the seat fixing device can adjust the movement of the seat along the X-axis and the Z-axis, as well as the rotation around the Y-axis;

[0008] Mold library, including:

[0009] The mold frame is provided with a plurality of accommodating positions, each of which is a hollow structure, and each of the accommodating positions is provided with a support component that can be extended and retracted along the Z axis;

[0010] The mold device comprises:

[0011] The mold body is made according to the shape of a part of the human body, and the mold body at least includes a buttocks mold, a back mold, a back and buttocks overall mold, and a back partial mold, and the support assembly abuts against the mold body;

[0012] The connecting mechanism includes a first quick-change member, the first quick-change member is detachably connected to the accommodating position, the first quick-change member is connected to the mold body via a connecting assembly, and the connecting assembly includes a sensor;

[0013] An operating device comprising a robotic arm and an operating device connected to the robotic arm, wherein the robotic arm is capable of six free movements, the operating device comprising a force-applying assembly and a second quick-change member, wherein the force-applying assembly drives the second quick-change member to extend and retract, and the second quick-change member is detachably connected to the first quick-change member;

[0014] The control device controls the operation of the operating device, receives the data sent by the sensor, and performs calculation and analysis on the data to obtain the seat comfort result.

[0015] Furthermore, the accommodation position is provided with two support plates spaced at a preset distance, and each of the support plates is provided with a positioning pin;

[0016] The first quick-change component is provided with two support plates, and the two support plates are supported by the two supporting plates. A positioning hole cooperating with the positioning pin is provided on each of the support plates.

[0017] Furthermore, the support assembly includes a driving mechanism and a support head, the driving mechanism drives the support head to extend and retract, and the support head abuts against the mold body.

[0018] Furthermore, the force applying component includes:

[0019] Motor;

[0020] A screw assembly, comprising a screw and a nut cooperating with the screw, wherein the screw is connected to the motor via a transmission mechanism;

[0021] The push rod is tubular and sleeved on the outside of the screw rod. One end of the push rod is connected to the nut, and the other end is connected to the second replacement piece.

[0022] Furthermore, the force applying component further includes:

[0023] The guide assembly includes a slide rail and a slider. The slide rail is arranged parallel to the screw rod. The slider is slidably connected to the slide rail and fixedly connected to the push rod.

[0024] Furthermore, the seat cushion and backrest of the chair are rotatably connected to each other, and a pillow is fixed on the backrest;

[0025] The test site is also provided with a pillow support device, which includes:

[0026] The supporting device comprises:

[0027] a support member, abutting against the pillow;

[0028] a screw rod, wherein the support member is fixed to an end portion of the screw rod;

[0029] The fixing seat is provided with an internal threaded hole, and the screw is threadedly connected to the internal threaded hole;

[0030] a handle connected to the other end of the screw relative to the support member;

[0031] The supporting slide is provided with a track extending along the Z axis, and the fixing seat is slidably fixed on the track.

[0032] Furthermore, the seat fixing device includes:

[0033] Four support leg assemblies are provided, and the four support leg assemblies are located at the four corners of the rectangle, the support leg assemblies include vertical support legs and horizontal support legs, and the horizontal support legs are connected to the vertical support legs in a manner that can slide up and down;

[0034] A connecting beam mechanism is provided, wherein the two supporting leg assemblies arranged along the X-axis direction are respectively connected by two connecting beam mechanisms, the seat cushion is fixed on the connecting beam mechanism, and the seat cushion can move along the X-axis direction and rotate around the Y-axis relative to the connecting beam mechanism.

[0035] Furthermore, the connecting beam mechanism includes:

[0036] A connecting slide rail is connected to the horizontal support leg, and the connecting slide rail is movable along the X-axis;

[0037] Slider assembly, including:

[0038] a connecting slider slidably connected to the connecting slide rail;

[0039] A fixing frame, wherein the two fixing frames are fixed on the two connecting sliders respectively and oppositely, and the fixing frames are connected to the seat cushion;

[0040] The rotating frame assembly, the two rotating frame assemblies are fixed on the two connecting sliders respectively and relatively, and the rotating frame assembly includes: a fixed part and a rotating part, the rotating part is rotatably connected to the fixed part, the fixed part is fixed on the connecting slider, and the rotating part is connected to the seat cushion.

[0041] Furthermore, the back and buttocks integral mold includes a buttocks mold and a back mold that are hinged to each other.

[0042] Furthermore, the seat mechanical properties testing system under static load further includes:

[0043] A parking lot is arranged side by side with the test field, and motor vehicles are parked in the parking lot, with doors of the motor vehicles facing the operating device.

[0044] Compared with the prior art, the seat mechanical properties testing system under static load described in the present invention has the following advantages:

[0045] The advantage of this technical solution is that it adopts the setting of a test field and a parking lot. A mold rack for placing various mold devices is provided on the test field. The mold body is made in the shape of a part of the human body. The mold body is fixed with a connecting mechanism. The connecting mechanism is provided with a first quick-change part. The test field is also provided with an operating device. The end of the mechanical arm of the operating device is connected with a force-applying component and a second replacement part. The first quick-change part and the second replacement part cooperate. A seat fixing device is provided in the test field for fixing the seat. The mechanical arm picks up the mold device and moves it to the seat. A static load is applied to the mold device through the force-applying component. The motor vehicle is parked in the parking lot. The test can apply a static load to the actual motor vehicle seat and conduct the test, which reduces the space occupied by the equipment. The testing process conforms to the static load borne by the actual car. The test results are accurate and truly reflect the mechanical properties of the actual seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A three-dimensional diagram of a seat mechanical properties testing system according to an embodiment of the present invention;

[0047] Figure 2 A three-dimensional diagram of a test field according to an embodiment of the present invention;

[0048] Figure 3 A three-dimensional diagram of a mold library according to an embodiment of the present utility model;

[0049] Figure 4 A three-dimensional diagram of a mold device according to an embodiment of the present invention;

[0050] Figure 5 A three-dimensional diagram of a mold frame according to an embodiment of the present invention;

[0051] Figure 6 A perspective view of an operating device according to an embodiment of the present invention;

[0052] Figure 7 A cross-sectional view of an operating device according to an embodiment of the present invention;

[0053] Figure 8 A perspective view of a seat fixing device according to an embodiment of the present invention;

[0054] Figure 9 This is a three-dimensional diagram of the pillow support device according to an embodiment of the present invention.

[0055] Description of reference numerals:

[0056] 100-test field, 110-mold library, 111-mold device, 1111-connecting mechanism, 11111-first quick-change part, 11112-sensor, 11113-connecting assembly, 1112-mold body, 112-mold frame, 1121-support plate, 1122-locating pin, 113-support assembly, 1131-driving mechanism, 1132-support head, 120-operating device, 121-operating device, 1211-force application assembly, 12111-nut, 12112-screw rod, 12113-push rod, 12114-motor, 12115-guide assembly, 1211 51-slider, 121152-slide rail, 1212-second quick-change part, 122-mechanical arm, 130-seat fixing device, 131-support leg assembly, 1311-vertical support leg, 1312-horizontal support leg, 132-connecting beam mechanism, 1321-connecting slide rail, 1322-connecting slider, 1323-rotating frame assembly, 1324-fixed frame, 140-control device, 150-seat, 160-pillow support device, 161-support device, 1611-support member, 1612-screw, 1613-fixed seat, 1614-handle, 162-support slide, 200-parking lot. DETAILED DESCRIPTION

[0057] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0058] In this utility model, terms such as "first," "second," "upper," and "lower" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first," "second," "upper," and "lower" may explicitly or implicitly include at least one such feature. Furthermore, the technical solutions of various embodiments may be combined with each other, but this must be based on the ability of a person of ordinary skill in the art to implement them. If the technical solutions of various embodiments can be combined, they are all within the scope of protection claimed by this utility model.

[0059] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0060] like Figure 1 As shown, a seat 150 mechanical performance testing system under static load includes: Figure 2 As shown, the test field 100 includes: a seat fixing device 130, a mold library 110, an operating device 120 and a control device 140. The seat fixing device 130 is used to fix the seat 150. The seat fixing device 130 can adjust the movement of the seat 150 along the X-axis and the Z-axis, as well as the rotation around the Y-axis. Figure 3As shown, the mold library 110 includes a mold rack 112 and a mold device 111. The mold rack 112 is provided with a plurality of accommodating positions, each of which is a hollow structure, and each of the accommodating positions is provided with a support assembly 113 that can be extended along the Z axis. Figure 4 As shown, the mold device 111 includes: a mold body 1112 and a connecting mechanism 1111. The mold body 1112 is made in the shape of a part of the human body, and the mold body 1112 at least includes a buttocks mold, a back mold, a back-buttocks overall mold and a back partial mold, and the support assembly 113 abuts against the mold body 1112. The connecting mechanism 1111 includes a first quick-change part 11111, and the first quick-change part 11111 is detachably connected to the accommodating position. The first quick-change part 11111 is connected to the mold body 1112 through a connecting assembly 11113, and the connecting assembly 11113 includes a sensor 11112. The operating device 120 includes a robotic arm 122 and an operating device 121 connected to the robotic arm 122, and the robotic arm 122 can perform 6 free movements, such as Figure 7 As shown, the operating device 121 includes a force-applying assembly 1211 and a second quick-change member 1212. The force-applying assembly 1211 drives the second quick-change member 1212 to extend and retract, and the second quick-change member 1212 is detachably connected to the first quick-change member 11111. The control device 140 controls the operation of the operating device 120, receives data from the sensor 11112, and performs calculations and analysis on the data to obtain a comfort result of the seat 150.

[0061] Seat 150 is secured by seat securing device 130, and mold assembly 111 is picked up by operating device 120. A force-applying assembly 1211 and a second replacement component are connected to the end of a robotic arm 122 of operating device 120. This second replacement component automatically picks up each mold body 1112 equipped with a first quick-change component 11111, facilitating replacement of various mold bodies 1112. Mold bodies 1112 are each modeled after a human body part, realistically simulating the static loads applied by the human body to seat 150, resulting in realistic mechanical properties and accurate test results. The overall system occupies a small space.

[0062] Further, such as Figure 5 As shown, the receiving position is provided with two support plates 1121 spaced a predetermined distance apart, and each support plate 1121 is provided with a positioning pin 1122. The first quick-change component 11111 is provided with two support plates, which are supported by the two support plates 1121, and each support plate is provided with a positioning hole that cooperates with the positioning pin 1122.

[0063] When the robot picks up the mold assembly 111, because the mold body 1112 is modeled after a partial human body shape, during the test, the mold body 1112 must apply a load to the seat 150 in a fixed direction. Furthermore, the robot needs to position the mold assembly 111 according to fixed coordinate points when picking up the mold assembly 111. Otherwise, it will affect the pickup of the mold assembly 111, and may even cause the first quick-change part 11111 and the second quick-change part to not fit together, making it impossible to pick up the mold assembly 111. The cooperation of the positioning pins 1122 and the positioning holes effectively positions the mold assembly 111, allowing the robot to accurately pick up the mold assembly 111 in the correct direction, allowing the test to proceed smoothly.

[0064] Furthermore, the support assembly 113 includes a driving mechanism 1131 and a support head 1132 . The driving mechanism 1131 drives the support head 1132 to extend and retract, and the support head 1132 abuts against the mold body 1112 .

[0065] After the mold device 111 is placed on the mold rack 112, because the mold body 1112 is large and longer in a certain direction, for example, the back mold, it is easy to cause the mold body 1112 to deflect to one side. Therefore, a support assembly 113 is provided to support the mold body 1112 through a support head 1132. In order to adapt to molds of different shapes, the support head 1132 needs to adapt to different heights. Therefore, a drive mechanism 1131 is provided to drive the support head 1132 to extend and retract. The drive mechanism 1131 can adopt a hydraulic mechanism, a motor 12114 driving a screw 1612 and a nut 12111 mechanism, a cam mechanism, etc. Preferably, the drive mechanism 1131 adopts an electric push rod 12113 mechanism.

[0066] Further, such as Figure 7 As shown, the force-applying assembly 1211 includes a motor 12114, a screw rod 12112 assembly, and a push rod 12113. The screw rod 12112 assembly includes a screw rod 12112 and a nut 12111 mating with the screw rod 12112. The screw rod 12112 is connected to the motor 12114 via a transmission mechanism. The push rod 12113 is tubular and sleeved on the outside of the screw rod 12112. One end of the push rod 12113 is connected to the nut 12111, and the other end is connected to the second replacement component.

[0067] The robotic arm 122 picks up the mold device 111 and moves it to the seat 150. The motor 12114 drives the screw rod 12112 to rotate, and the nut 12111 moves up and down along the screw rod 12112. The nut 12111 and the push rod 12113, which is sleeved on the outside of the screw rod 12112 and connected to the second replacement part, drive the second replacement part to move, so that the mold device 111 applies a static load to the seat 150.

[0068] Furthermore, the force-applying component 1211 also includes: a guide component 12115, including a slide rail 121152 and a slider 121151, the slide rail 121152 is arranged parallel to the screw rod 12112, the slider 121151 is slidably connected to the slide rail 121152, and the slider 121151 is fixedly connected to the push rod 12113.

[0069] Because screw rod 12112 has a certain length, screw rod 12112 is prone to shaking during rotation, causing mold assembly 111 to swing, affecting the test. By providing slide rail 121152, slider 121151 is connected to push rod 12113, and slider 121151 slides along slide rail 121152, the swing of push rod 12113 is limited, thereby improving the test effect.

[0070] Further, such as Figure 9 As shown, the seat cushion and backrest of the chair 150 are rotatably connected to each other, and a pillow is fixed on the backrest. The test field 100 is also provided with a pillow support device 160, and the pillow support device 160 includes: a support device 161 and a support slide 162. The support device 161 includes: a support member 1611, a screw rod 1612, a fixing seat 1613 and a handle 1614. The support member 1611 abuts against the pillow. The support member 1611 is fixed to the end of the screw rod 1612. The fixing seat 1613 is provided with an internal threaded hole, and the screw rod 1612 is threadedly connected to the internal threaded hole. The handle 1614 is connected to the other end of the screw rod 1612 relative to the support member 1611. The support slide 162 is provided with a track extending along the Z axis, and the fixing seat 1613 is slidably fixed on the track.

[0071] During testing, when a static load is applied to seat 150, the backrest will deform significantly as the load increases, resulting in an inability to receive accurate data. Therefore, a pillow support device 160 is provided to support the backrest to avoid this problem. To accommodate various backrest angles, support member 1611 needs to be adjusted, thus employing a screw 1612 and nut 12111 structure.

[0072] Further, such as Figure 8As shown, the seat fixing device 130 includes: four support leg assemblies, each located at the four corners of a rectangle. The support leg assemblies include vertical legs and transverse legs, each of which is slidably connected to the vertical legs. A connecting beam mechanism connects two of the support leg assemblies arranged along the X-axis, with the seat cushion fixed to the connecting beam mechanism. The seat cushion can move relative to the connecting beam mechanism along the X-axis and rotate about the Y-axis.

[0073] Through the seat fixing device 130 of the above structure, the seat 150 can be adjusted in the X-axis and Z-axis directions, and rotated around the Y-axis, that is, the inclination angle of the seat 150 can be adjusted to meet the actual usage of the motor vehicle seat 150 and obtain real data.

[0074] As an embodiment, the connecting beam mechanism includes: a connecting slide rail 1321 and a slider assembly. The connecting slide rail 1321 is connected to the horizontal support leg, and the connecting slide rail 1321 can move along the X-axis. The slider assembly includes: a connecting slider 1322, a fixed frame 1324 and a rotating frame assembly 1323. The connecting slider 1322 is slidably connected to the connecting slide rail 1321. The two fixed frames 1324 are fixed on the two connecting sliders 1322 relative to each other, and the fixed frames 1324 are connected to the seat cushion. The two rotating frame assemblies 1323 are fixed on the two connecting sliders 1322 relative to each other, and the rotating frame assembly 1323 includes: a fixed part and a rotating part, the rotating part is rotatably connected to the fixed part, the fixed part is fixed on the connecting slider 1322, and the rotating part is connected to the seat cushion.

[0075] In order to achieve the above-mentioned adjustment of the movement of the seat 150 in the X-axis direction and the rotation around the Y-axis, this embodiment is preferably adopted. The movement of the connecting slider 1322 along the X-axis on the connecting slide rail 1321 realizes the movement in the X-axis direction. The two rotating frame assemblies 1323 realize the rotation of the seat 150 around the Y-axis. It should be noted that the fixed frame 1324 is arranged at the front end of the seat 150, that is, the other end of the seat cushion relative to the backrest, and the rotating frame assembly 1323 is arranged at the rear end of the seat 150, that is, close to the connection between the seat cushion and the backrest.

[0076] As another embodiment, the front and rear ends of the seat cushion are connected to the slider 1322 through a rotating member assembly. The angles of the front and rear ends of the seat cushion can be adjusted respectively.

[0077] Furthermore, the back and buttocks integral mold includes a buttocks mold and a back mold that are hinged to each other.

[0078] By adjusting the angles of the back mold and the buttocks mold, various sitting postures of the human body are simulated to truly reflect actual application conditions and obtain accurate mechanical performance data.

[0079] As another embodiment, the seat 150 mechanical properties testing system under static load further includes: a parking lot 200, which is arranged side by side with the test field 100, and motor vehicles are parked in the parking lot 200, with the doors of the motor vehicles facing the operating device 120.

[0080] The above tests are conducted using simulated seats at the test site. Alternatively, the tests can be conducted using actual vehicle seats in a parking lot located adjacent to the test site. Specifically, the vehicle is parked in the parking lot, with the distance between the vehicle's seats facing away from the test site and the robotic arm less than its maximum extension length, allowing the operating device to test all vehicle seats.

[0081] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. A seat mechanical performance testing system under static load, characterized in that: include: Test site (100), including: A seat fixing device (130) for fixing a seat (1613) chair (150), wherein the seat fixing device (130) can adjust the movement of the seat (150) along the X-axis and the Z-axis, and the rotation around the Y-axis; Mold library (110), including: The mold frame (112) is provided with a plurality of accommodating positions, each of which is a hollow structure, and each of which is provided with a supporting component (113) that can be extended and retracted along the Z axis; The mold device (111) comprises: The mold body (1112) is made in the shape of a part of the human body, and the mold body (1112) at least includes a buttocks mold, a back mold, a back-buttocks overall mold, and a back partial mold. The support assembly (113) abuts against the mold body (1112); The connecting mechanism (1111) comprises a first quick-change member (11111), wherein the first quick-change member (11111) is detachably connected to the accommodating position, and the first quick-change member (11111) is connected to the mold body (1112) via a connecting assembly (11113), and the connecting assembly (11113) comprises a sensor (11112); An operating device (120) comprises a mechanical arm (122) and an operating device (121) connected to the mechanical arm (122), wherein the mechanical arm (122) can perform six free movements, and the operating device (121) comprises a force-applying component (1211) and a second quick-change component (1212), wherein the force-applying component (1211) drives the second quick-change component (1212) to extend and retract, and the second quick-change component (1212) is detachably connected to the first quick-change component (11111); The control device (140) controls the operation of the operating device (120), receives data sent by the sensor (11112), and performs calculation and analysis on the data to obtain a comfort result of the seat (150).

2. The seat mechanical properties testing system under static load according to claim 1, characterized in that: The accommodating position is provided with two supporting plates (1121) spaced apart by a preset distance, and each supporting plate (1121) is provided with a positioning pin (1122); The first quick-change component (11111) is provided with two support plates, which are supported by the two supporting plates (1121), and each of the support plates is provided with a positioning hole that cooperates with the positioning pin (1122).

3. The seat mechanical properties testing system under static load according to claim 2, characterized in that: The support assembly (113) comprises a driving mechanism (1131) and a support head (1132), wherein the driving mechanism (1131) drives the support head (1132) to extend and retract, and the support head (1132) abuts against the mold body (1112).

4. The seat mechanical properties testing system under static load according to claim 1, characterized in that: The force applying component (1211) comprises: Motor (12114); A screw rod (12112) assembly includes a screw rod (12112) and a nut (12111) that cooperates with the screw rod (12112), wherein the screw rod (12112) is connected to the motor (12114) via a transmission mechanism; The push rod (12113) is tubular and sleeved on the outside of the screw rod (12112). One end of the push rod (12113) is connected to the nut (12111), and the other end is connected to the second quick-change component.

5. The seat mechanical performance testing system under static load according to claim 4, characterized in that: The force applying component (1211) further includes: The guide assembly (12115) includes a slide rail (121152) and a slider (121151), wherein the slide rail (121152) is arranged parallel to the screw rod (12112), the slider (121151) is slidably connected to the slide rail (121152), and the slider (121151) is fixedly connected to the push rod (12113).

6. The seat mechanical properties testing system under static load according to claim 1, characterized in that: The seat cushion and backrest of the chair (150) are rotatably connected to each other, and a pillow is fixed on the backrest; The test field (100) is further provided with a pillow support device (160), wherein the pillow support device (160) comprises: The supporting device (161) comprises: a support member (1611) abutting against the pillow; a screw rod (1612), wherein the support member (1611) is fixed to an end portion of the screw rod (1612); The fixing seat (1613) is provided with an internal threaded hole, and the screw (1612) is threadedly connected to the internal threaded hole; a handle (1614) connected to the other end of the screw (1612) relative to the support member (1611); The supporting slide (162) is provided with a track extending along the Z axis, and the fixing seat (1613) is slidably fixed on the track.

7. The seat mechanical properties testing system under static load according to claim 6, characterized in that: The seat fixing device (130) comprises: Four support leg assemblies (131) are provided, and the four support leg assemblies (131) are located at the four corners of the rectangle. The support leg assemblies (131) include vertical support legs (1311) and horizontal support legs (1312). The horizontal support legs (1312) are connected to the vertical support legs (1311) in a manner that they can slide up and down. A connecting beam mechanism (132) is provided, wherein the two supporting leg assemblies (131) arranged along the X-axis direction are respectively connected via the two connecting beam mechanisms (132); the seat cushion is fixed on the connecting beam mechanism (132); and the seat cushion can move along the X-axis direction and rotate around the Y-axis relative to the connecting beam mechanism (132).

8. The seat mechanical properties testing system under static load according to claim 7, characterized in that: The connecting beam mechanism (132) comprises: A connecting slide rail (1321) is connected to the horizontal support leg (1312), and the connecting slide rail (1321) is movable along the X axis; Slider (121151) assembly, including: A connecting slider (1322) slidably connected to the connecting slide rail (1321); A fixing frame (1324), wherein the two fixing frames (1324) are fixed on the two connecting sliders (1322) in a relative manner, and the fixing frames (1324) are connected to the seat cushion; A rotating frame assembly (1323), wherein the two rotating frame assemblies (1323) are fixed on the two connecting sliders (1322) in a relative manner, and the rotating frame assembly (1323) comprises: a fixed part and a rotating part, wherein the rotating part is rotatably connected to the fixed part, the fixed part is fixed on the connecting slider (1322), and the rotating part is connected to the seat cushion.

9. The seat mechanical performance testing system under static load according to claim 1, characterized in that: The back and buttocks integral mold comprises a buttocks mold and a back mold which are hinged to each other.

10. The seat mechanical performance testing system under static load according to claim 1, characterized in that: Also includes: A parking lot (200) is arranged side by side with the test field (100), and motor vehicles are parked in the parking lot (200), with doors of the motor vehicles facing the operating device (120).

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