Test device suitable for functional test of chair parts

Abstract

The utility model relates to the technical field of chair testing, in particular to a testing device suitable for functional testing of chair parts, which comprises different types of actuating mechanisms and different'chair 'part clamps detachably connected with the actuating mechanisms. The execution mechanisms of different types can drive the corresponding clamps to carry out linear motion or rotation motion in all directions, so that the function test of the clamps of different types on the chair type parts is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of chair component testing, in particular to a test device suitable for functional testing of chair components. Background Art

[0002] "Chairs" is a general term for various types of chairs, which are seats with backrests and armrests. Various types of chairs are composed of any number of components such as headrests, lumbar supports, leg rests, seats, backrests and armrests. While ensuring the overall quality of "chairs", it is also necessary to ensure the quality of each component of "chairs" and the fit between the components and the human body. Accordingly, it also inspires the testing of the functions of each component of "chairs", such as flipping the headrest and lifting the headrest to verify the headrest flipping function and the headrest lifting function, or flipping the seat, sliding the seat forward and backward, and lifting the seat to verify the seat flipping function, seat sliding forward and backward and seat lifting function.

[0003] For example, the application number is 2023111063179, and the name is a comprehensive tester for functional chairs, including a test platform for carrying seats; a first actuator, which is arranged on the test platform, and the first actuator includes a first actuator end that can reciprocate in the vertical direction; an armrest clamp, a spring pressure head, a backrest body clamp, a backrest slider clamp and a pillow clamp, any one of which can be detachably connected to the first actuator end; a second actuator, which is arranged on the test platform, and the second actuator includes a second actuator end that can reciprocate in the horizontal direction; a tiptoe telescopic plate traction head, a seat clamp, and a handle push-pull clamp, any one of which can be detachably connected to the second actuator end. It can meet multiple test requirements for a single seat, and can also meet multiple test requirements for multiple seats at the same time.

[0004] The above technical solution can test some components of the "chair", but there are still too few fixtures to deal with the functional testing of each component of the "chair", and it is impossible to complete the testing of each component of the "chair". Secondly, the different functions of the various components of the "chair" are not coordinated, and the fixtures adapted to the different functions of the same component are not reasonably constructed, resulting in incomplete testing.

[0005] Based on the existing problems, it is proposed to design a test device suitable for the functional testing of chair components to achieve comprehensive functional testing of each component and function of the "chair". Summary of the invention

[0006] The utility model aims to overcome the defects in the prior art and provides a test device suitable for functional testing of chair components, which can perform complete functional testing on various components and functions of the "chair".

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is: a test device suitable for functional testing of chair components, including a test platform carrying a seat, a first actuator, a second actuator, a third actuator and a fourth actuator arranged on the test platform, and an adapter;

[0008] The first actuator can drive the fixtures fixed at the ends thereof to reciprocate in the vertical direction through the adapter, and the fixtures include a headrest lifting fixture, a lumbar support lifting fixture, a seat flipping fixture, a seat lifting fixture, a backrest lifting fixture and an armrest lifting fixture;

[0009] The second actuator can drive the fixture fixed at its end to reciprocate in the horizontal direction through the adapter, and the fixture includes a leg rest extension fixture, a seat front and rear sliding fixture, an armrest front and rear sliding fixture, and an armrest left and right sliding fixture;

[0010] The third actuator can drive the clamp fixed at its end to rotate with the vertical direction as the rotation axis through the adapter, and the clamp includes an armrest rotating clamp;

[0011] The fourth actuator can drive the clamp fixed at its end to rotate with a horizontal line parallel to the horizontal plane as the axis through the adapter, and the clamp includes a headrest flip clamp, a lumbar support knob clamp, a leg rest flip clamp, and an armrest flip clamp.

[0012] As a preferred solution of the utility model, the headrest flip clamp includes a clamping member, a screw, a connecting rod and a rotating rod. A headrest clamping space for clamping the headrest is formed in the clamping member. The locking and loosening of the screw are used to adapt to headrests of different thicknesses in the headrest clamping space. One end of the connecting rod is movably connected to the back of the clamping member, and the other end of the connecting rod is movably connected to the rotating rod.

[0013] As a preferred solution of the utility model, the lumbar support lifting clamp includes a lumbar support clamping member, an L-shaped connecting rod and a receiving member, the lumbar support clamping member includes a receiving frame, a clamping block, a guide rod and an adjusting screw, the clamping block is located inside the receiving frame, guide rods are installed on diagonal sides of the clamping block, an adjusting screw is installed in the middle of the clamping block, one end of the receiving member is fixedly connected to the lumbar support clamping member, and the other end of the receiving member is fixedly connected to the L-shaped connecting rod.

[0014] As a preferred solution of the utility model, the lumbar support knob clamp includes a receiving rod and a lumbar support knob clamp fixedly connected to one end of the receiving rod, and the lumbar support knob clamp includes a base plate and a lumbar support knob clamp that can move along the long hole on the base plate toward the inside of the base plate and clamp the lumbar support knob.

[0015] As a preferred solution of the utility model, the leg rest telescopic clamp comprises a support member with a groove formed inside, a fixing rod is installed in the groove of the support member, and a binding rope covering the leg rest is tied to the fixing rod.

[0016] As a preferred solution of the utility model, the seat lifting fixture includes a fixed seat installed on the seat armrest and a seat switch mechanism for opening the seat switch, the fixed seat includes a clamping plate for clamping the left and right sides of the armrest, the two clamping plates are connected by bolts and nuts, the seat switch mechanism is installed on one side of the fixed seat, the seat switch mechanism includes a mounting rod, a bearing seat, a cylinder mounting seat and a needle-type cylinder, one end of the mounting rod is fixedly connected to the clamping plate, the other end of the mounting rod is fixed with a bearing seat, the bearing seat can adjust its position on the mounting rod along the axial direction of the mounting rod, the cylinder mounting seat is installed on the side of the bearing seat away from the armrest, and the needle-type cylinder for opening the seat switch is installed at the bottom of the cylinder mounting seat.

[0017] As a preferred solution of the utility model, the backrest lifting clamp includes a support plate and a backrest clamping piece, at least two backrest clamping pieces are arranged on the support plate, the backrest clamping pieces can be adjusted along the direction of the long hole of the support plate to adapt to backrests of different lengths, the backrest clamping pieces include a clamping frame, a clamping block, a guide rod, a locking screw and a clamping piece connecting rod, the clamping block is fixedly connected to the clamping frame by the guide rod and the locking screw, the back of the clamping frame is movably connected to one end of the clamping piece connecting rod, and the other end of the clamping piece connecting rod is fixed to the support plate.

[0018] As a preferred solution of the utility model, the armrest lifting clamp includes a first clamping plate, a first armrest clamping piece, a second armrest clamping piece, an armrest cylinder mounting seat and an armrest connecting rod. A clamping space capable of clamping the armrest up and down and front and back is formed between the first armrest clamping piece, the second armrest clamping piece and the first clamping plate. The top of the first clamping plate is movably connected to the armrest connecting rod, and a needle-shaped cylinder capable of opening the armrest switch is installed on the armrest cylinder mounting seat.

[0019] As a preferred solution of the utility model, the armrest rotating clamp includes a second clamping plate, a first limit block and a second limit block, and a clamping space capable of clamping the left and right sides of the armrest is formed between the second clamping plate, the first limit block and the second limit block.

[0020] As a preferred solution of the utility model, the front and rear sliding clamp of the armrest includes a third clamping plate, a positioning plate and a third limiting plate. A clamping space capable of clamping the front and rear sides of the armrest is formed between the third clamping plate and the positioning plate. Several third limiting plates are installed on the left and right sides of the third clamping plate for limiting the left and right sides of the armrest.

[0021] The beneficial effects of the utility model are:

[0022] 1. Different types of actuators of the utility model can be detachably connected with different types of fixtures. At the same time, different types of actuators can drive the corresponding fixtures to perform linear motion or rotational motion in various directions to achieve functional testing of "chair" components by different types of fixtures.

[0023] 2. In the first and second actuators of the utility model, force sensors are provided to detect the tensile and compressive forces of the fixture in the linear direction, so as to determine the magnitude of the force applied to each component of the "chair" during the test and the pressure resistance of each component of the "chair"; dynamic torque sensors are provided in the third and fourth actuators to determine the magnitude of the torque and rotational speed applied to each component of the "chair" during the test.

[0024] 3. The utility model adds floating joints in the connection between several fixtures and adapters to ensure that the connection between the fixture and the actuator can successfully complete the functional test of the "chair" components and ensure the success rate of the tester test.

[0025] 4. In each fixture of the present invention, a pad is attached to the clamping piece for clamping chair components. The function of the pad is to enable the fixture to better clamp and fit the chair components, and to protect the chair components from being damaged by the fixture during the test.

[0026] 5. The fixtures used for testing the functions of "chair" components of the utility model include headrest flip fixture, headrest lifting fixture, lumbar support lifting fixture, lumbar support knob fixture, legrest flip fixture, legrest telescopic fixture, seat flip fixture, seat forward and backward sliding fixture, seat lifting fixture, backrest lifting fixture, armrest lifting fixture, armrest rotation fixture, armrest forward and backward sliding fixture, armrest left and right sliding fixture, and armrest flip fixture. The fixtures are complete in variety, can realize more functional tests, and are more in line with actual use of the human body.

[0027] 6. The utility model can perform multifunctional tests of linear or rotational motion on different components of a "chair", including headrests, lumbar supports, leg rests, seats, backrests and armrests, etc., thereby achieving more functional tests and making the components after the test more in line with actual use requirements.

[0028] 7. The utility model integrates various actuators, various fixtures and test platforms into one tester, so that multiple tests on multiple components of a chair can be completed on the tester, making the functional test of each component of the chair more convenient and quick.

[0029] 8. The utility model can perform functional tests on different components of multiple chairs on the tester at the same time, thereby improving the efficiency of component functional tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the utility model;

[0031] Figure 2 It is a structural schematic diagram of the first actuator of the utility model;

[0032] Figure 3 It is a structural schematic diagram of the second actuator of the utility model;

[0033] Figure 4 It is a structural schematic diagram of the third actuator of the utility model;

[0034] Figure 5 It is a structural schematic diagram of the fourth actuator of the utility model;

[0035] Figure 6 It is a structural schematic diagram of the first kit of the utility model;

[0036] Figure 7 It is a structural schematic diagram of the second set of the utility model;

[0037] Figure 8 It is a connection diagram of the utility model kit and the adapter;

[0038] Fig. 9 It is a structural schematic diagram of the headrest flip fixture of the utility model;

[0039] Fig.10 It is a structural schematic diagram of the headrest lifting fixture of the utility model;

[0040] Fig.11 This is a schematic diagram of the structure of the utility model waist support lifting fixture Figure 1 ;

[0041] Fig.12 This is a schematic diagram of the structure of the utility model waist support lifting fixture Figure 2 ;

[0042] Fig.13 This is a schematic diagram of the structure of the utility model waist support knob clamp Figure 1 ;

[0043] Fig.14 This is a schematic diagram of the structure of the utility model waist support knob clamp Figure 2 ;

[0044] Fig.15 It is a structural schematic diagram of the leg rest flipping fixture of the utility model;

[0045] Fig.16 It is a structural schematic diagram of the leg rest telescopic clamp of the utility model;

[0046] Fig.17It is a structural schematic diagram of the seat flipping fixture of the utility model;

[0047] Fig.18 It is a structural schematic diagram of the front-rear sliding clamp of the seat of the utility model;

[0048] Fig.19 This is a schematic diagram of the structure of the seat lifting fixture of the utility model. Figure 1 ;

[0049] Fig. 20 This is a schematic diagram of the structure of the seat lifting fixture of the utility model. Figure 2 ;

[0050] Fig.21 It is a structural schematic diagram of the utility model backrest lifting fixture;

[0051] Fig. 22 It is a structural schematic diagram of the handrail lifting fixture of the utility model;

[0052] Fig.23 It is a structural schematic diagram of the handrail rotating clamp of the utility model;

[0053] Fig.24 It is a structural schematic diagram of the front and rear sliding clamp of the handrail of the utility model;

[0054] Fig.25 It is a structural schematic diagram of the left-right sliding clamp of the handrail of the utility model;

[0055] Fig.26 It is a structural schematic diagram of the handrail flipping fixture of the utility model;

[0056] Reference numerals in the figures:

[0057] Test platform 1, first actuator 2, second actuator 3, third actuator 4, fourth actuator 5, adapter 6, floating joint 7;

[0058] A first set 8, a first sleeve portion 81, a first step portion 82, and a first platform portion 83;

[0059] A second set 9, a second sleeve portion 91, a second step portion 92, and a second platform portion 93;

[0060] Headrest flip fixture 11, headrest clamping space 112, screw rod 113, connecting rod 114, rotating rod 115;

[0061] A headrest lifting fixture 12, a headrest lower end clamping piece 121, a headrest upper end clamping piece 122, and an adjustment handle 123;

[0062] Lumbar support lifting fixture 21, lumbar support clamping member 211, L-shaped connecting rod 212, receiving member 213, receiving frame 2111, clamping block 2112, guide rod 2113, adjusting screw 2114;

[0063] Lumbar support knob fixture 22, receiving rod 221, covering member 222, bottom plate 223, lumbar support knob clamping member 224;

[0064] A leg rest turning fixture 31, a leg rest rotating rod 311, and a leg rest clamping member 312;

[0065] Leg rest telescopic clamp 32, support member 321, fixing rod 322;

[0066] Seat flip fixture 41, seat clamp 411, mounting block 412, rotating shaft 413, pull rod 414;

[0067] Seat forward and backward sliding fixture 42, frame 421, front baffle 422, rear baffle 423, left clamp 424, right clamp 425, lower clamp 426;

[0068] Seat lifting fixture 43, fixing seat 431, seat switch mechanism 432, clamping plate 4311, mounting rod 4321, bearing seat 4322, cylinder mounting seat 4323, needle cylinder 4324;

[0069] Backrest lifting fixture 51, support plate 511, backrest clamping piece 512, clamping frame 5121, clamping block 5122, guide rod 5123, locking screw 5124, clamping piece connecting rod 5125;

[0070] An armrest lifting fixture 61, a first clamping plate 611, a first armrest clamping member 612, a second armrest clamping member 613, an armrest cylinder mounting seat 614, and an armrest connecting rod 615;

[0071] The armrest rotating fixture 62, the second clamping plate 621, the first limiting block 622, and the second limiting block 623;

[0072] The armrest forward and backward sliding fixture 63, the third clamping plate 631, the positioning plate 632, and the third limiting plate 633;

[0073] The armrest left-right sliding fixture 64, the fourth clamping plate 641, the armrest positioning plate 642, the fourth limiting plate 643;

[0074] Armrest flipping fixture 65 , clamping seat 651 , clamping column 652 . DETAILED DESCRIPTION

[0075] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0076] In the following description, terms such as "front", "rear", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0077] like Figure 1-Figure 26 As shown, a test device suitable for functional testing of chair components includes a test platform 1 for carrying a seat;

[0078] It includes a first actuator 2 arranged on the test platform 1, and the first actuator 2 can drive the fixtures fixed at the ends thereof to make reciprocating motions in the vertical direction, and the fixtures include a headrest lifting fixture 12, a lumbar support lifting fixture 21, a seat flipping fixture 41, a seat lifting fixture 43, a backrest lifting fixture 51 and an armrest lifting fixture 61;

[0079] It includes a second actuator 3 arranged on the test platform 1, and the second actuator 3 can drive the fixtures fixed at the ends thereof to reciprocate in the horizontal direction, and the fixtures include a leg rest extension fixture 32, a seat front and rear sliding fixture 42, an armrest front and rear sliding fixture 63, and an armrest left and right sliding fixture 64;

[0080] It includes a third actuator 4 arranged on the test platform 1, and the third actuator 4 can drive a fixture fixed at its end to rotate with the vertical direction as the rotation axis, and the fixture includes an armrest rotating fixture 62;

[0081] It includes a fourth actuator 5 arranged on the test platform 1, and the fourth actuator 5 can drive the clamp fixed at its end to rotate with a horizontal line parallel to the horizontal plane as the axis of rotation, and the clamp includes a headrest flip clamp 11, a lumbar support knob clamp 22, a leg rest flip clamp 31, and an armrest flip clamp 65.

[0082] The first actuator 2 , the second actuator 3 , the third actuator 4 , the fourth actuator 5 and the fixture are detachably connected via an adapter 6 .

[0083] Different types of actuators of the utility model can be detachably connected with different types of clamps. At the same time, different types of actuators can drive the corresponding clamps to perform linear motion or rotational motion in various directions to realize functional testing of "chair-type" components by different types of clamps.

[0084] The first actuator 2, the second actuator 3, the third actuator 4 and the fourth actuator 5 are all driven by servo motors to operate the fixture. The internal electrical components of the first actuator 2 and the second actuator 3 are servo motors, electric cylinders and force sensors. The connection method of the internal electrical components is that the front end of the servo motor is connected to the electric cylinder, and the front end of the electric cylinder is connected to the force sensor.

[0085] The first actuator 2 and the second actuator 3 include a first kit 8, one end of the first kit 8 is fixedly connected to the force sensor, and the other end of the first kit 8 is fixedly connected to the adapter 6. The first kit 8 includes a first sleeve portion 81, a first step portion 82 located at the front end of the first sleeve portion 81, and a first platform portion 83 located on the first step portion 82. The first sleeve portion 81 is in contact with the adapter 6 facing the first sleeve portion 81 on one side, and the first step portion 82 is embedded in the adapter 6. The adjustable handle passes through the adapter 6 and the first platform portion 83 to achieve a fixed connection between the adapter 6 and the first kit 8. Accordingly, a fixed connection between the adapter 6 and the first actuator 2 and the second actuator 3 is achieved.

[0086] According to actual needs, the first actuator 2 and the second actuator 3 can be fixedly connected to the test platform 1 vertically, horizontally, longitudinally or even at an angle to achieve linear telescopic movement with the detachable connection fixture therewith.

[0087] The internal electrical components of the third actuator 4 and the fourth actuator 5 are a servo motor, a planetary reducer and a dynamic torque sensor. The connection method of the internal electrical components is that the front end of the servo motor is connected to the planetary reducer, and the front end of the planetary reducer is connected to the dynamic torque sensor through a coupling;

[0088] The third actuator 4 and the fourth actuator 5 include a second kit 9, one end of the second kit 9 ​​is fixedly connected to the dynamic torque sensor, and the other end of the second kit 9 ​​is fixedly connected to the adapter 6. The second kit 9 ​​includes a second sleeve portion 91, a second step portion 92 located at the front end of the second sleeve portion 91, and a second platform portion 93 located on the second step portion 92. The side of the second sleeve portion 91 facing the adapter 6 abuts against the second sleeve portion 91 of the adapter 6 facing the second step portion 92, and the second step portion 92 is embedded in the adapter 6. The adjustable handle passes through the adapter 6 and the second platform portion 93 to achieve fixed connection between the adapter 6 and the second kit 9. Accordingly, the fixed connection between the adapter 6 and the third actuator 4 and the fourth actuator 5 is achieved.

[0089] According to actual needs, the third actuator 4 and the fourth actuator 5 can be fixedly connected to the test platform 1 vertically, horizontally, longitudinally or even at an angle to achieve rotational movement with the detachable connection fixture.

[0090] In the utility model, force sensors are arranged in the first and second actuators to detect the tensile and compressive forces of the clamp along the linear direction, thereby determining the magnitude of the force applied to each component of the "chair" and the pressure resistance of each component of the "chair". Dynamic torque sensors are arranged in the third and fourth actuators to determine the magnitude of the torque and rotational speed applied to each component of the "chair".

[0091] Furthermore, since some parts of the chair may be eccentric or angularly deflected during the test, the adapter 6 and the fixture will adapt to the interference caused by the eccentricity or angular deflection by adding floating joints, movable joints, couplings, etc. For example, floating joints 7 are added to the connection between the headrest lifting fixture 12, the lumbar support lifting fixture 21, the seat flip fixture 41, the backrest lifting fixture 51, the armrest lifting fixture 61, the armrest front and rear sliding fixture 63, the armrest left and right sliding fixture 64 and other fixtures and the adapter 6 to ensure the smooth completion of the fixture function test and improve the success rate of the test.

[0092] When the first actuator 2, the second actuator 3, the third actuator 4 and the fourth actuator 5 drive the fixture to operate, in order to ensure that other chair components do not affect the operation of the test component, other components can be fixed according to actual conditions.

[0093] Each fixture used to clamp chair components has pads attached to the clamps. The pads can be made of foam or rubber materials. Their function is to enable the fixture to better clamp and fit the chair components, and to protect the chair components from being damaged by the fixture during the test.

[0094] The headrest flip clamp 11 includes a clamping member, a screw 113, a connecting rod 114 and a rotating rod 115. A headrest clamping space 112 for clamping a headrest is formed in the clamping member. The locking and loosening of the screw 113 are used to adapt to headrests of different thicknesses in the headrest clamping space 112. One end of the connecting rod 114 is movably connected to the back of the clamping member, and the other end of the connecting rod 114 is movably connected to the rotating rod 115. The rotating rod 115 is connected to the actuator through the adapter 6.

[0095] The headrest flipping fixture 11 uses a connecting rod 114 as a connecting member, one end of which is rotatably connected to the rotating rod 115 and the other end is rotatably connected to the clamping member, in order to adapt to the angle change of the headrest and the large-scale flipping action of the headrest.

[0096] Correspondingly, if the angle change of the headrest is small or the flipping action of the headrest is small, the connecting rod 114 can also adopt a structure in which one end is rotatably connected to the clamping member and the other end is fixedly connected to the rotating rod 115.

[0097] The rotating rod 115 in the headrest flipping fixture 11 is composed of a horizontal rod and a vertical rod perpendicular to the horizontal rod. The L-shaped rotating rod 115 does not interfere with other parts of the chair during rotation. A long hole is formed on the vertical rod of the rotating rod 115 for facilitating the adjustment of the adapter 6 on the rotating rod 115, so that the fourth actuator 5 can adapt to the flipping of the headrest in different positions.

[0098] During actual use, the locking of the screw 113 causes the headrest to be clamped in the headrest clamping space 112, and the fourth actuator 5 fixedly connected to the headrest flipping fixture 11 drives the rotating rod 115 fixed at its end to rotate about a horizontal line parallel to the horizontal plane. Correspondingly, the rotating rod 115 drives the clamping part to rotate through the connecting rod 114, thereby realizing the flipping of the headrest, and further completing the flipping test of the headrest.

[0099] The headrest lifting fixture 12 includes a headrest lower end clamping piece 121, a headrest upper end clamping piece 122 and an adjustment handle 123, wherein the headrest lower end clamping piece 121 abuts against the headrest lower end on the side facing the headrest upper end clamping piece 122, a mounting portion is formed on the top of the headrest lower end clamping piece 121 away from the headrest, a horizontal long hole is formed on the mounting portion for facilitating the adjustment of the adapter 6 on the mounting portion, and a vertical long hole is also formed in the vertical direction of the headrest lower end clamping piece 121 for facilitating the adjustment of the headrest upper end clamping piece 122 on the headrest lower end clamping piece 121; the bottom of the headrest upper end clamping piece 122 abuts against the headrest upper end, and the headrest upper end clamping piece 122 is fixedly connected to the headrest lower end clamping piece 121 through the adjustment handle 123.

[0100] During actual use, the adjustment handle 123 locks the upper clamp 122 of the headrest onto the lower clamp 121 of the headrest. The lower clamp 121 and the upper clamp 122 of the headrest clamp the upper and lower ends of the headrest. The first actuator 2 fixedly connected to the headrest lifting fixture 12 drives the lower clamp 121 fixed at its end to make reciprocating motion in the vertical direction, thereby realizing the lifting and lowering of the headrest, and further completing the lifting and lowering test of the headrest.

[0101] The lumbar support lifting fixture 21 includes a lumbar support clamping member 211, an L-shaped connecting rod 212 and a receiving member 213. The lumbar support clamping member includes a receiving frame 2111, a clamping block 2112, a guide rod 2113 and an adjusting screw 2114. The clamping block 2112 is located inside the receiving frame 2111. Guide rods 2113 are installed on both diagonal sides of the clamping block 2112. The guide rods 2113 play a supporting and guiding role when the clamping block 2112 clamps the lumbar support. The clamping block 2112 is installed in the middle. The adjusting screw 2114 facilitates the adjustment of the distance between the clamping block 2112 and the inner wall of the receiving frame 2111 to accommodate lumbar supports of different thicknesses. That is, the clamping block 2112 is fixed inside the receiving frame 2111 by means of the guide rod 2113 and the adjusting screw 2114. The clamping block 2112 and the receiving frame 2111 cooperate to clamp the lumbar support. One end of the receiving member 213 is fixedly connected to the lumbar support clamping member 211, and the other end of the receiving member 213 is fixedly connected to the L-shaped connecting rod 212.

[0102] According to the different structures of the lumbar support, one or more lumbar support clamps can be set on the lumbar support to clamp the lumbar support to complete the test. In this embodiment, only two examples are shown, namely, one lumbar support clamp clamped in the middle of the lumbar support and two lumbar support clamps clamped on both sides of the lumbar support. At the same time, different numbers of lumbar support clamps will be adjusted in angle to a certain extent or new components will be added to adapt to lumbar support with different structures.

[0103] During actual use, the lumbar support is clamped by one or more lumbar support clamps, and the first actuator 2 fixedly connected to the lumbar support lifting fixture 21 drives the L-shaped connecting rod 212 fixed at its end to perform reciprocating motion in the vertical direction, thereby realizing the lifting and lowering of the lumbar support, and further completing the lifting and lowering test of the headrest.

[0104] The lumbar support knob clamp 22 includes a receiving rod 221 and a lumbar support knob clamp fixedly connected to one end of the receiving rod 221. The lumbar support knob clamp used to clamp the lumbar support knob is not limited to one type. One type of lumbar support knob clamp includes a covering member 222 covering the lumbar support knob and a bolt that surrounds the covering member 222 and locks the lumbar support knob in the covering member 222, which is used for clamping lumbar support knobs with smaller diameters. Another type of lumbar support knob clamp includes a base plate 223 and a lumbar support knob clamp 224 that can move along the long hole on the base plate toward the inside of the base plate and clamp the lumbar support knob, which is used for clamping lumbar support knobs with larger diameters.

[0105] During actual use, the lumbar support knob is clamped by the lumbar support knob clamp, and the fourth actuator 5 fixedly connected to the lumbar support knob clamp 22 drives the receiving rod 221 fixed at its end to rotate about a horizontal line parallel to the horizontal plane as the axis, thereby realizing the rotation of the lumbar support knob and completing the rotation test of the lumbar support knob.

[0106] The leg rest turning fixture 31 comprises a leg rest clamp 312 which can clamp the upper and lower sides of the leg rest and a leg rest rotating rod 311 which is fixedly connected to the back of the leg rest clamp 312. The rotation of the leg rest rotating rod 311 drives the leg rest clamp 312 which clamps the leg rest to rotate.

[0107] In this embodiment, the structure of the leg rest clamp 312 is the same as the structure of the clamp of the headrest flip clamp 11. In fact, during the leg rest flip test, if the leg rest angle changes greatly or the flipping range is large, the head rest flip clamp 11 can be used in the leg rest flip test after adjusting the size of the head rest clamping space 112.

[0108] Compared with the headrest flipping clamp 11, the legrest flipping clamp 31 in this embodiment removes the connecting rod 114 in the headrest flipping clamp 11, and directly fixes the legrest rotating rod 311 to the legrest clamp 312, which can achieve legrest flipping with smaller angle change or smaller flipping range.

[0109] Similarly, when the angle change of the headrest flip fixture 11 is small or the flipping amplitude is small, the leg rest flip fixture 31 can also be used in the headrest flip test.

[0110] During actual use, the upper and lower surfaces of the leg rest are clamped by the leg rest clamping piece 312, and the fourth actuator 5 fixedly connected to the leg rest flipping fixture 31 can drive the leg rest rotating rod 311 fixed at its end to rotate with a horizontal line parallel to the horizontal plane as the axis, thereby realizing the flipping of the leg rest and further completing the flipping test of the headrest.

[0111] The leg rest extension clamp 32 comprises a support member 321 with a groove formed inside. A fixing rod 322 is installed in the groove of the support member 321. A binding rope covering the leg rest is tied to the fixing rod 322.

[0112] During actual use, the leg rest is wrapped with a rope, and the two ends of the rope are tied or glued to the fixed rod 322. The second actuator 3 fixedly connected to the leg rest telescopic clamp 32 can drive the support 321 fixed at its end to reciprocate in the horizontal direction, thereby realizing the telescopic movement of the leg rest, and further completing the telescopic test of the leg rest.

[0113] The seat flipping fixture 41 includes a seat clamp 411 capable of clamping the upper and lower surfaces of the seat, a mounting block 412, a rotating shaft 413 and a pull rod 414. The mounting block 412 is symmetrically arranged on the side of the seat clamp 411 facing the pull rod 414. The rotating shaft 413 is installed between the mounting blocks 412. The rotating shaft 413 is also sleeved with a pull rod 414 capable of rotating around the rotating shaft 413.

[0114] The seat clamp 411 has the same structure as the clamp of the headrest flip clamp 11 .

[0115] During actual use, the upper and lower surfaces of the seat are clamped by the seat clamp 411. Since the front end of the pull rod 414 is movably connected to the seat clamp 411 through the mounting block 412 and the rotating shaft 413, the first actuator 2 fixedly connected to the seat flipping fixture 41 can drive the pull rod 414 fixed at its end to make reciprocating motion in the vertical direction, and the seat clamp 411 movably connected to the pull rod 414 makes a reciprocating flipping motion, thereby realizing the flipping of the seat and completing the flipping test of the seat.

[0116] The seat forward and backward sliding clamp 42 includes a frame 421 pressed on the seat, a front baffle 422 and a rear baffle 423 for clamping the front and rear ends of the seat, a left clamp 424 and a right clamp 425 for clamping the left and right ends of the seat, and a lower clamp 426 that cooperates with the frame 421 to clamp the upper and lower ends of the seat.

[0117] The seat forward and backward sliding clamp 42 is applied to the seat with the backrest folded and abutted against the bench. Accordingly, the upper and lower ends of the seat are clamped by the frame 421 and the lower clamp 426, the left and right ends of the seat are clamped by the left clamp 424 and the right clamp 425, and the front and rear ends of the seat are clamped by the front baffle 422 and the rear baffle 423, so as to realize the clamping of the seat with 6 degrees of freedom and ensure that the seat does not shift during the forward and backward sliding process.

[0118] Further, the left clamping member 424 includes a sheet metal part fixed on the frame 421 and adjustable left and right on the frame 421, and a needle-shaped cylinder located at the lower end of the sheet metal part and capable of horizontally abutting the left end of the seat, and the model of the cylinder is preferably MPE8X15; the right clamping member 425 includes a sheet metal part fixed on the frame 421 and adjustable left and right on the frame 421, and a needle-shaped cylinder located at the lower end of the sheet metal part and capable of horizontally abutting the right end of the seat, and the model of the cylinder is preferably MPE8X15; the lower clamping member 426 includes a sheet metal part fixed on the frame 421 and adjustable up and down on the frame 421, and a needle-shaped cylinder located at the lower end of the sheet metal part and capable of vertically abutting the lower end of the seat, and the model of the cylinder is preferably PSB10x40R.

[0119] During actual use, the seat is clamped by the seat forward and backward sliding clamp 42, and the second actuator 3 fixedly connected to the seat forward and backward sliding clamp 42 can drive the front baffle 422 fixed at its end to reciprocate in the horizontal direction, thereby realizing the forward and backward sliding of the seat, and further completing the test of the forward and backward sliding of the seat.

[0120] The seat lifting fixture 43 includes a fixing seat 431 installed on the seat armrest and a seat switch mechanism 432 for turning on the seat switch. The fixing seat 431 includes a clamping plate 4311 for clamping the left and right sides of the armrest. The two clamping plates 4311 are connected by bolts and nuts. A pad close to the armrest is installed on the side of the clamping plate 4311 facing the armrest. The seat switch mechanism 432 is installed on one side of the fixing seat 431. The seat switch mechanism 432 includes a mounting rod 4321, a bearing seat 43 22. A cylinder mounting seat 4323 and a needle-type cylinder 4324. One end of the mounting rod 4321 is fixedly connected to the clamping plate 4311. A bearing seat 4322 is fixed to the other end of the mounting rod 4321. The bearing seat 4322 can adjust its position on the mounting rod 4321 along the axial direction of the mounting rod 4321. The cylinder mounting seat 4323 is installed on the side of the bearing seat 4322 away from the armrest. The needle-type cylinder 4324 for opening the seat switch is installed at the bottom of the cylinder mounting seat 4323.

[0121] The cylinder mounting seat 4323 is formed with both a vertical long hole and a horizontal long hole. The vertical long hole facilitates the up and down adjustment of the cylinder mounting seat 4323 on the bearing seat 4322, and the horizontal long hole facilitates the horizontal and transverse adjustment of the needle cylinder 4324 on the cylinder mounting seat 4323.

[0122] The needle cylinder 4324 of the seat lifting fixture 43 adjusts its horizontal position by moving in the horizontal long hole, adjusts its horizontal longitudinal position by moving the seat switch mechanism 432 on the screw, and adjusts its vertical position by moving the cylinder mounting seat 4323 on the bearing seat 4322, so that the opening of the needle cylinder 4324 can turn on the switch that controls the seat lifting.

[0123] In actual use, the seat lifting switch is turned on by extending the needle cylinder 4324, and accordingly, the seat is repeatedly pressed by the first actuator 2 so that the seat can reciprocate in the vertical direction, thereby realizing the lifting of the seat and completing the test of the seat lifting.

[0124] The backrest lifting fixture 51 includes a support plate 511 and a backrest clamping member 512. At least two backrest clamping members 512 are arranged on the support plate 511. The backrest clamping members 512 can be adjusted along the direction of the long hole of the support plate 511 to adapt to backrests of different lengths. The backrest clamping members 512 include a clamping frame 5121, a clamping block 5122, a guide rod 5123, a locking screw 5124 and a clamping member connecting rod 5125. The clamping block 5122 is fixedly connected to the clamping frame 5121 through the guide rod 5123 and the locking screw 5124. The back of the clamping frame 5121 is movably connected to one end of the clamping member connecting rod 5125, and the other end of the clamping member connecting rod 5125 is fixed to the support plate 511.

[0125] In this embodiment, the backrest clamping member 512 includes two clamping blocks 5122, and guide rods 5123 are installed on the diagonally opposite sides of the clamping blocks 5122. The guide rods 5123 play a supporting and guiding role when the clamping blocks 5122 clamp the backrest. A locking screw 5124 is installed in the middle of the clamping block 5122 to facilitate the adjustment of the distance between the clamping blocks 5122 and the clamping blocks 5122 to adapt to backrests of different thicknesses. That is, the clamping blocks 5122 are fixed inside the clamping frame 5121 through the guide rods 5123 and the locking screws 5124, and the two opposite clamping blocks 5122 cooperate to achieve the clamping of the backrest.

[0126] Furthermore, since the backrest has an arc, a movable connection is adopted between the clamping member connecting rod 5125 and the clamping frame 5121 to avoid damage to the backrest due to the rigid connection during the lifting and lowering process of the backrest.

[0127] In actual use, the backrest is clamped by two backrest clamps 512, and the first actuator 2 fixedly connected to the backrest lifting fixture 51 can drive the support plate 511 fixed at its end to reciprocate in the vertical direction to realize the lifting and lowering of the backrest, thereby completing the test of the backrest lifting and lowering.

[0128] The armrest lifting fixture 61 includes a first clamping plate 611, a first armrest clamping piece 612, a second armrest clamping piece 613, an armrest cylinder mounting seat 614 and an armrest connecting rod 615. A clamping space capable of clamping the armrest up and down and front and back is formed between the first armrest clamping piece 612, the second armrest clamping piece 613 and the first clamping plate 611. The top of the first clamping plate 611 is movably connected to the armrest connecting rod 615. A needle-shaped cylinder capable of opening the armrest switch is installed on the armrest cylinder mounting seat 614, and the needle-shaped cylinder is preferably MPE8X15.

[0129] The first armrest clamping member 612 and the second armrest clamping member 613 are both composed of a Z-shaped sheet metal and an L-shaped sheet metal installed at the bottom of the first clamping plate 611. The L-shaped sheet metal moves and is fixed on the long hole of the Z-shaped sheet metal to adapt to armrests of different thicknesses. The needle cylinder MPE8X15 extends out to open the switch that fixes the armrest, so that the armrest can be raised and lowered under the action of force.

[0130] During actual use, the armrest is clamped by the first armrest clamping piece 612, the second armrest clamping piece 613 and the first clamping plate 611, and the switch for fixing the armrest is opened by extending the needle cylinder. The first actuator 2 fixedly connected to the armrest lifting fixture 61 can drive the armrest connecting rod 615 fixed at its end to make reciprocating motion in the vertical direction, thereby realizing the lifting and lowering of the armrest, and then completing the test of the armrest lifting and lowering.

[0131] The armrest rotating fixture 62 includes a second clamping plate 621 , a first limit block 622 and a second limit block 623 , and a clamping space capable of clamping the left and right sides of the armrest is formed between the second clamping plate 621 , the first limit block 622 and the second limit block 623 .

[0132] The first limit block 622 and the second limit block 623 are fixed to the bottom of the second clamping plate 621 by bolts, and the second clamping plate 621 abuts the top of the handrail. The first limit block 622 and the second limit block 623 are adjusted along the direction of the long hole of the second clamping plate 621 to clamp handrails of different widths.

[0133] During actual use, the armrest is clamped by the first limit block 622, the second limit block 623, and the second clamping plate 621. The third actuator 4 fixedly connected to the armrest rotation clamp 62 can drive the second clamping plate 621 fixed at its end to rotate with the vertical direction as the axis, thereby realizing the rotation of the armrest and completing the test of the armrest rotation.

[0134] The armrest front and rear sliding clamp 63 includes a third clamping plate 631, a positioning plate 632 and a third limiting plate 633. A clamping space capable of clamping the front and rear sides of the armrest is formed between the third clamping plate 631 and the positioning plate 632. Several third limiting plates 633 are installed on the left and right sides of the third clamping plate 631 to limit the left and right sides of the armrest.

[0135] The positioning plate 632 and the third limiting plate 633 are installed on the bottom of the third clamping plate 631 by bolts. The third clamping plate 631 abuts against the top of the handrail. The positioning plate 632 is adjusted along the longitudinal long hole direction of the third clamping plate 631 to clamp handrails of different lengths. Several third limiting plates 633 are adjusted along the transverse long hole direction of the third clamping plate 631 to limit the side of the handrail.

[0136] During actual use, the armrest is clamped by the positioning plate 632 and the third clamping plate 631, and then a plurality of third limiting plates 633 are fixed on the third clamping plate 631 to limit the left and right sides of the armrest. The second actuator 3 fixedly connected to the armrest forward and backward sliding clamp 63 can drive the third clamping plate 631 fixed at its end to make reciprocating motion in the horizontal direction, thereby realizing the forward and backward sliding of the armrest, and further completing the test of the forward and backward sliding of the armrest.

[0137] The armrest left and right sliding clamp 64 includes a fourth clamping plate 641, an armrest positioning plate 642 and a fourth limiting plate 643. A clamping space capable of clamping the armrest left and right is formed between the fourth clamping plate 641 and the positioning plate 642. Several fourth limiting plates 643 are installed on the front and rear sides of the fourth limiting plate 643 to limit the front and rear sides of the armrest.

[0138] The armrest positioning plate 642 and the fourth limiting plate 643 are installed on the bottom of the fourth clamping plate 641 by bolts. The fourth clamping plate 641 abuts against the top of the armrest. The armrest positioning plate 642 is adjusted along the direction of the transverse long hole of the fourth clamping plate 641 to clamp armrests of different widths. Several fourth limiting plates 643 are adjusted along the direction of the longitudinal long hole of the fourth clamping plate 641 to limit the side of the armrest.

[0139] During actual use, the armrest is clamped by the armrest positioning plate 642 and the fourth clamping plate 641, and then a plurality of fourth limiting plates 643 are fixed on the fourth clamping plate 641 to limit the front and rear sides of the armrest. The second actuator 3 fixedly connected to the armrest left and right sliding clamp 64 can drive the fourth clamping plate 641 fixed at its end to make reciprocating motion in the horizontal direction, thereby realizing the left and right sliding of the armrest, and further completing the test of the left and right sliding of the armrest.

[0140] The armrest flipping fixture 65 includes a clamping seat 651 and a clamping column 652. The clamping column 652 is installed on the upper and lower sides of the clamping seat 651. A clamping space for clamping the armrest can be formed between the upper and lower clamping columns 652.

[0141] The clamping seat 651 is formed with a vertical slot for facilitating the adjustment of the clamping column 652 and a long hole for facilitating the longitudinal adjustment of the adapter 6. The clamping column 652 is adjusted along the vertical slot of the clamping column 652 to clamp handrails of different thicknesses.

[0142] During actual use, the armrest is clamped by the upper and lower clamping columns 652, and the fourth actuator 5 fixedly connected to the armrest flipping clamp 65 can drive the clamping seat 651 fixed at its end to rotate with a horizontal line parallel to the horizontal plane as the axis of rotation, thereby realizing the flipping and sliding of the armrest, and then completing the test of the left and right sliding of the armrest.

[0143] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0144] Although this article uses more figure marks in the figure: test platform 1, first actuator 2, second actuator 3, third actuator 4, fourth actuator 5, adapter 6, floating joint 7, first kit 8, first sleeve portion 81, first step portion 82, first platform portion 83, second kit 9, second sleeve portion 91, second step portion 92, second platform portion 93, headrest flip fixture 11, headrest clamping space 112, screw 113, connecting rod 114, rotating rod 115, headrest lifting fixture 12, headrest lower end clamp 121, headrest upper end clamp 122, adjustment handle 123, lumbar support lifting fixture 21, lumbar support Clamping part 211, L-shaped connecting rod 212, receiving part 213, receiving frame 2111, clamping block 2112, guide rod 2113, adjusting screw 2114, lumbar support knob clamp 22, receiving rod 221, covering part 222, bottom plate 223, lumbar support knob clamp 224, leg rest flip clamp 31, leg rest rotating rod 311, leg rest clamp 312, leg rest telescopic clamp 32, support part 321, fixing rod 322, seat flip clamp 41, seat clamp 411, mounting block 412, rotating shaft 413, pull rod 414, seat front and rear sliding clamp 42, frame 421, front baffle 422, rear baffle 423, left clamp holding member 424, right clamping member 425, lower clamping member 426, seat lifting fixture 43, fixing seat 431, seat switch mechanism 432, clamping plate 4311, mounting rod 4321, bearing seat 4322, cylinder mounting seat 4323, needle cylinder 4324, backrest lifting fixture 51, support plate 511, backrest clamping member 512, clamping frame 5121, clamping block 5122, guide rod 5123, locking screw 5124, clamping member connecting rod 5125, armrest lifting fixture 61, first clamping plate 611, armrest first clamping member 612, armrest second clamping member 613, armrest cylinder mounting seat 614, armrest connecting member Terms such as rod 615, armrest rotating clamp 62, second clamping plate 621, first limit block 622, second limit block 623, armrest forward and backward sliding clamp 63, third clamping plate 631, positioning plate 632, third limit plate 633, armrest left and right sliding clamp 64, fourth clamping plate 641, armrest positioning plate 642, fourth limit plate 643, armrest flip clamp 65, clamping seat 651, clamping column 652, etc., but the possibility of using other terms is not excluded; these terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A test device suitable for functional testing of chair components, characterized in that: It comprises a test platform (1) for carrying a seat, a first actuator (2), a second actuator (3), a third actuator (4) and a fourth actuator (5) arranged on the test platform (1), and an adapter (6); The first actuator (2) can drive the fixtures fixed at the ends thereof to perform reciprocating motion in a vertical direction via the adapter (6), the fixtures comprising a headrest lifting fixture (12), a lumbar support lifting fixture (21), a seat flipping fixture (41), a seat lifting fixture (43), a backrest lifting fixture (51) and an armrest lifting fixture (61); The second actuator (3) can drive the clamps fixed at the ends thereof to reciprocate in the horizontal direction through the adapter (6), the clamps comprising a leg rest telescopic clamp (32), a seat front and rear sliding clamp (42), an armrest front and rear sliding clamp (63), and an armrest left and right sliding clamp (64); The third actuator (4) can drive a clamp fixed at its end to rotate about a vertical axis via an adapter (6), wherein the clamp comprises an armrest rotating clamp (62); The fourth actuator (5) is capable of driving a fixture fixed at its end to rotate about a horizontal line parallel to the horizontal plane as a rotation axis through an adapter (6), wherein the fixture comprises a headrest flip fixture (11), a lumbar support knob fixture (22), a leg rest flip fixture (31), and an armrest flip fixture (65).

2. A test device for functional testing of chair components according to claim 1, characterized in that: The headrest flipping clamp (11) comprises a clamping member, a screw rod (113), a connecting rod (114) and a rotating rod (115); a headrest clamping space (112) for clamping a headrest is formed in the clamping member; the screw rod (113) can be locked or loosened to accommodate headrests of different thicknesses in the headrest clamping space (112); one end of the connecting rod (114) is movably connected to the back of the clamping member, and the other end of the connecting rod (114) is movably connected to the rotating rod (115).

3. A test device for functional testing of chair components according to claim 1, characterized in that: The lumbar support lifting fixture (21) comprises a lumbar support clamping member (211), an L-shaped connecting rod (212) and a receiving member (213); the lumbar support clamping member (211) comprises a receiving frame (2111), a clamping block (2112), a guide rod (2113) and an adjusting screw (2114); the clamping block (2112) is located inside the receiving frame (2111); guide rods (2113) are installed on two diagonally opposite sides of the clamping block (2112); the adjusting screw (2114) is installed in the middle of the clamping block (2112); one end of the receiving member (213) is fixedly connected to the lumbar support clamping member (211); and the other end of the receiving member (213) is fixedly connected to the L-shaped connecting rod (212).

4. A test device for functional testing of chair components according to claim 1, characterized in that: The lumbar support knob clamp (22) comprises a receiving rod (221) and a lumbar support knob clamp fixedly connected to one end of the receiving rod (221); the lumbar support knob clamp comprises a base plate (223) and a lumbar support knob clamp (224) capable of moving along a long hole on the base plate toward the inside of the base plate and clamping the lumbar support knob.

5. A test device for functional testing of chair components according to claim 1, characterized in that: The leg rest telescopic clamp (32) comprises a support member (321) with a groove formed therein, a fixing rod (322) is installed in the groove of the support member (321), and a binding rope covering the leg rest is tied to the fixing rod (322).

6. A test device for functional testing of chair components according to claim 1, characterized in that: The seat lifting fixture (43) comprises a fixing seat (431) mounted on the seat armrest and a seat switch mechanism (432) for turning on the seat switch, wherein the fixing seat (431) comprises a clamping plate (4311) for clamping the left and right sides of the armrest, and the two clamping plates (4311) are connected by bolts and nuts, and the seat switch mechanism (432) is mounted on one side of the fixing seat (431), and comprises a mounting rod (4321), a bearing seat (4322), a cylinder mounting seat (4323), and a needle cylinder. (4324), one end of the mounting rod (4321) is fixedly connected to the clamping plate (4311), and the other end of the mounting rod (4321) is fixed with a bearing seat (4322), and the bearing seat (4322) can adjust its position on the mounting rod (4321) along the axial direction of the mounting rod (4321), and a cylinder mounting seat (4323) is installed on the side of the bearing seat (4322 away from the armrest, and a needle-type cylinder (4324) for opening the seat switch is installed at the bottom of the cylinder mounting seat (4323).

7. A test device for functional testing of chair components according to claim 1, characterized in that: The backrest lifting fixture (51) comprises a support plate (511) and a backrest clamping member (512); at least two backrest clamping members (512) are arranged on the support plate (511); the backrest clamping members (512) can be adjusted along the direction of the long hole of the support plate (511) to adapt to backrests of different lengths; the backrest clamping members (512) comprise a clamping frame (5121), a clamping block (5122), a guide rod (5123), a locking screw (5124) and a clamping member connecting rod (5125); the clamping block (5122) is fixedly connected to the clamping frame (5121) via the guide rod (5123) and the locking screw (5124); the back of the clamping frame (5121) is movably connected to one end of the clamping member connecting rod (5125); and the other end of the clamping member connecting rod (5125) is fixed to the support plate (511).

8. A test device for functional testing of chair components according to claim 1, characterized in that: The armrest lifting fixture (61) comprises a first clamping plate (611), a first armrest clamping piece (612), a second armrest clamping piece (613), an armrest cylinder mounting seat (614) and an armrest connecting rod (615); a clamping space capable of clamping the armrest up and down and front and back is formed between the first armrest clamping piece (612), the second armrest clamping piece (613) and the first clamping plate (611); the top of the first clamping plate (611) is movably connected to the armrest connecting rod (615); and a needle-shaped cylinder capable of opening an armrest switch is mounted on the armrest cylinder mounting seat (614).

9. A test device for functional testing of chair components according to claim 1, characterized in that: The armrest rotating clamp (62) comprises a second clamping plate (621), a first limit block (622) and a second limit block (623), wherein a clamping space capable of clamping the left and right sides of the armrest is formed between the second clamping plate (621), the first limit block (622) and the second limit block (623).

10. A test device for functional testing of chair components according to claim 1, characterized in that: The armrest front and rear sliding clamp (63) comprises a third clamping plate (631), a positioning plate (632) and a third limiting plate (633), wherein a clamping space capable of clamping the front and rear sides of the armrest is formed between the third clamping plate (631) and the positioning plate (632), and a plurality of the third limiting plates (633) are installed on the left and right sides of the third clamping plate (631) for limiting the left and right sides of the armrest.

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