Automobile headrest force measuring machine

Abstract

The invention provides an automobile headrest force measuring machine which comprises a base, a fixed seat is welded to the base, a fixed groove is formed in the side of the fixed seat, a fixed rod is movably installed in the fixed groove, a movable seat is movably installed at the top of the fixed seat, and a supporting plate is welded to the movable seat. A supporting seat is movably mounted between the supporting plates, a fixing hole is formed in the supporting seat, a fixing assembly is fixedly mounted in the fixing hole, and an arc-shaped groove is formed in the inner wall of each supporting plate. When the automobile headrest force measuring machine is used, a movable rod shields a limiting disc and then completes up-and-down limiting of a fixed column, the fixed column is prevented from loosening in a mounting hole, in addition, a fixed rod performs up-and-down limiting on a base through cooperation of the limiting disc, the whole device can be conveniently and rapidly disassembled in the later period, and the working efficiency is improved. During use, the position and the angle of the headrest can be quickly adjusted through horizontal displacement of the movable seat and inclined rotation of the supporting seat.

Description

Technical Field

[0001] The invention relates to the field of headrest force measuring equipment, in particular to an automobile headrest force measuring machine. Background Art

[0002] During the production of automobile headrests, random inspections are required, and the headrests need to be force measured. During the force measurement, they need to be tested by a static strength testing machine for automobile seat headrests. However, the static strength testing machines for automobile seat headrests currently on the market require auxiliary positioning devices, and the operation steps are cumbersome and prone to errors, because the position definition of the headrest gap measurement is not close enough.

[0003] According to a semi-automatic three-station headrest static strength testing machine disclosed in the existing patent document with publication number 208636139U, the H-point device of the datum device is installed on the tested seat and connected to the main body of the headrest testing machine through a connecting fork. The H-point device of the datum device can be quickly connected / unlocked with the swivel pivot of the swivel beam and the L-shaped main beam. The middle left side of the swivel beam is hinged with the push rod on the back plate loading electric cylinder. The L-shaped main beam is installed on the main body lifting adjustment mechanism and its bottom plate through a slide rail and a station spacing adjustment mechanism. When in use, this technical solution has strong practicality and accuracy. By pre-engraving dimension lines and numbers on the relevant parts of each component, it can be directly judged during the measurement process without manual measurement of the size, thereby saving time and improving accuracy. With respect to the above technical solution, although this solution improves accuracy, it is impossible to quickly disassemble and install the entire equipment during use. In addition, the position and angle of the headrest cannot be quickly adjusted during testing, which is inconvenient during use. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a car headrest dynamometer to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. When in use, the movable rod blocks the limit plate to complete the upper and lower limit of the fixed column to prevent the fixed column from loosening inside the mounting hole. In addition, the fixed rod cooperates with the limit plate to limit the base up and down, which is convenient for the rapid disassembly of the entire device in the later stage. When in use, the horizontal displacement of the movable seat and the tilt rotation of the support seat can quickly adjust the position and angle of the headrest.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a car headrest dynamometer, including a base, a fixed seat welded on the base, a fixing groove is opened on the side of the fixed seat, a fixing rod is movably installed inside the fixed groove, a movable seat is movably installed on the top of the fixed seat, a support plate is welded on the movable seat, a support seat is movably installed between the support plates, a fixing hole is opened on the support seat, a fixing component is fixedly installed inside the fixing hole, an arc groove is opened on the inner wall of the support plate, a rotating column is movably installed inside the arc groove, and one end of the rotating column is fixed to the side of the support seat.

[0006] Furthermore, a support frame is welded on the fixing seat, a groove is formed on the inner wall of the support frame, a protrusion is movably installed inside the groove, and a shielding sealing plate is fixed between the protrusion and the groove.

[0007] Furthermore, a mounting seat is fixed between the protrusions, a hydraulic mechanism is fixedly mounted on the mounting seat, an extrusion seat is fixed on the hydraulic mechanism, and a power mechanism is fixed on the top of the support frame.

[0008] Furthermore, a screw rod is installed on the power mechanism, a threaded hole is installed on the protrusion, and the screw rod is rotatably installed inside the threaded hole.

[0009] Furthermore, a slide groove is provided on the fixed seat, a displacement mechanism is fixedly installed inside the slide groove, a slider is fixed at one end of the displacement mechanism, and one end of the slider is fixed to the bottom of the movable seat.

[0010] Furthermore, a mounting hole is opened on the side of the base, an opening is opened at one end of the mounting hole, a fixing column is rotatably installed inside the mounting hole, a limiting plate is fixed at one end of the fixing column, and the limiting plate is movably matched with one end of the fixing rod.

[0011] Furthermore, a limiting block is fixed on the side of the fixing rod, a limiting groove is opened on the inner wall of the fixing groove, and the limiting block is installed inside the limiting groove through a supporting mechanism.

[0012] Furthermore, a lifting mechanism is fixedly installed inside the movable seat, a through hole is opened on the lifting mechanism, a rotating shaft is movably installed inside the through hole, a connecting ear is installed on the rotating shaft, and the connecting ear is welded to the bottom of the support seat.

[0013] Furthermore, a fixing ear is welded on the movable seat, a supporting ear is fixed to the bottom of the supporting seat, a connecting shaft is rotatably installed between the supporting ear and the fixing ear, and the fixing assembly includes a fixed block and a movable block, a fixing bolt is rotatably installed on the fixed block, and one end of the fixing bolt is rotatably installed inside the fixing hole.

[0014] Furthermore, an installation groove is provided between the fixed block and the movable block, a support column is movably installed inside the installation groove, a headrest is fixed to one end of the support column, a clamping block is fixed on the inner wall of the installation groove, a clamping groove is provided on the support column, the clamping block cooperates with the clamping groove, a positioning column is fixed to the side of the movable block, a connecting groove is provided on the fixed block, a reset mechanism is fixed inside the connecting groove, a connecting block is fixed to one end of the reset mechanism, and one end of the connecting block is fixed to the movable block.

[0015] Beneficial effects of the present invention:

[0016] 1. This kind of automobile headrest dynamometer, when in use, the movable rod blocks the limit plate to complete the upper and lower limit of the fixed column, so as to prevent the fixed column from loosening inside the mounting hole. In addition, the fixed rod cooperates with the limit plate to limit the base up and down, which is convenient for the rapid disassembly of the entire device in the later stage. When in use, the horizontal displacement of the movable seat and the tilt rotation of the support seat can quickly adjust the position and angle of the headrest.

[0017] 2. In this automobile headrest dynamometer, the fixing holes of the fixing components are installed in different positions, and the width between the fixing components is adjusted according to the width between the support columns. The movable block is later moved horizontally on the fixed block. After the support column is installed in the installation groove, the movable block limits the front and rear positions of the support column through the clamping block, thereby avoiding the influence caused by the movement of the support column in the later stage. After the movable block and the fixed block are opened, it is convenient for the quick disassembly of the support column in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an automobile headrest dynamometer of the present invention;

[0019] Figure 2 It is a structural schematic diagram of a slotted structure of a vehicle headrest dynamometer of the present invention;

[0020] Figure 3 It is a structural schematic diagram of a limit block of a vehicle headrest dynamometer of the present invention;

[0021] Figure 4 It is a schematic diagram of the side cross-sectional structure of a movable seat of an automobile headrest dynamometer of the present invention;

[0022] Figure 5 It is a structural schematic diagram of a headrest of an automobile headrest dynamometer of the present invention;

[0023] Figure 6 It is a structural schematic diagram of an automobile headrest dynamometer according to the present invention after the fixing components are opened;

[0024] In the figure: 1, base; 2, fixed seat; 3, fixed groove; 4, fixed rod; 5, movable seat; 6, support plate; 7, arc groove; 8, support seat; 9, fixed hole; 10, fixed assembly; 11, support frame; 12, slot; 13, bump; 14, shielding sealing plate; 15, mounting seat; 16, hydraulic mechanism; 17, power mechanism; 18, extrusion seat; 19, opening; 20, mounting hole; 21, fixed column; 22, limit plate; 23, slide groove; 24, displacement Mechanism; 25. Slider; 26. Limit block; 27. Support mechanism; 28. Rotating column; 29. ​​Lifting mechanism; 30. Through hole; 31. Rotating shaft; 32. Connecting lug; 33. Supporting lug; 34. Fixed lug; 35. Connecting shaft; 36. Fixed block; 37. Movable block; 38. Mounting slot; 39. Support column; 40. Headrest; 41. Fixing bolt; 42. Positioning column; 43. Block; 44. Connecting slot; 45. Connecting block; 46. Reset mechanism. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0026] See also Figures 1 to 6 The present invention provides a technical solution: a car headrest dynamometer, comprising a base 1, a fixed base 2 welded on the base 1, a fixing groove 3 is opened on the side of the fixed base 2, a fixing rod 4 is movably installed inside the fixed groove 3, a movable base 5 is movably installed on the top of the fixed base 2, a support plate 6 is welded on the movable base 5, a support base 8 is movably installed between the support plates 6, a fixing hole 9 is opened on the support base 8, a fixing assembly 10 is fixedly installed inside the fixing hole 9, an arc groove 7 is opened on the inner wall of the support plate 6, a rotating column 28 is movably installed inside the arc groove 7, one end of the rotating column 28 is fixed to the side of the support base 8, and the rotating column 28 rotates inside the arc groove 7 at a later stage, and provides left and right limiting force for the support base 8 while rotating, so as to avoid collision caused by left and right swing of the support base 8 between the support plates 6.

[0027] In this embodiment, a support frame 11 is welded to the fixed seat 2, and a groove 12 is formed on the inner wall of the support frame 11. A protrusion 13 is movably installed inside the groove 12, and a shielding sealing plate 14 is fixed between the protrusion 13 and the groove 12. A mounting seat 15 is fixed between the protrusion 13, and a hydraulic mechanism 16 is fixedly installed on the mounting seat 15. An extrusion seat 18 is fixed on the hydraulic mechanism 16. A power mechanism 17 is fixed on the top of the support frame 11, and a screw rod is installed on the power mechanism 17. A threaded hole is installed on the protrusion 13, and the screw rod is rotatably installed inside the threaded hole. The hydraulic mechanism 16 is a hydraulic push rod, which squeezes the headrest 40 through the extrusion seat 18 for force measurement. The power mechanism 17 is a DC motor, which drives the screw rod to rotate, and the screw rod drives the protrusion 13 and the mounting seat 15 to move up and down for adjustment.

[0028] In this embodiment, a slide groove 23 is provided on the fixed seat 2, and a displacement mechanism 24 is fixedly installed inside the slide groove 23. The displacement mechanism 24 is a linear reciprocating electric push rod, which drives the overall horizontal movement of the movable seat 5 through a slider 25. The movement of the movable seat 5 adjusts the position of the headrest 40. A slider 25 is fixed at one end of the displacement mechanism 24, and one end of the slider 25 is fixed to the bottom of the movable seat 5. A mounting hole 20 is provided on the side of the base 1, and an opening 19 is provided at one end of the mounting hole 20. A fixing column 21 is rotatably installed inside the mounting hole 20, and a limiting plate 22 is fixed to one end of the fixing column 21. The limiting plate 22 is movably matched with one end of the fixing rod 4. A limiting block 26 is fixed to the side of the fixing rod 4. A limiting groove is opened on the inner wall of the fixing groove 3. The limiting block 26 is installed inside the limiting groove through a supporting mechanism 27. The supporting mechanism 27 is a supporting spring. The supporting spring pushes the fixing rod 4 to move outward. The fixing rod 4 cooperates with the fixing column 21 and the limiting plate 22 to limit and fix the base 1.

[0029] In this embodiment, a lifting mechanism 29 is fixedly installed inside the movable seat 5. The lifting mechanism 29 is a linear reciprocating electric push rod. The electric push rod cooperates with the connecting ear 32 to make one end of the support seat 8 tilt up to adjust the inclination angle of the support seat 8 and the headrest 40. A through hole 30 is opened on the lifting mechanism 29. A rotating shaft 31 is movably installed inside the through hole 30. A connecting ear 32 is installed on the rotating shaft 31. The connecting ear 32 is welded to the bottom of the support seat 8. A fixed ear 34 is welded on the movable seat 5. A supporting ear 33 is fixed to the bottom of the support seat 8. A connecting shaft 35 is rotatably installed between the supporting ear 33 and the fixed ear 34. The fixed assembly 10 includes a fixed block 36 and a movable block 37. A fixing bolt 41 is rotatably installed on the fixed block 36. One end of the fixing bolt 41 is rotatably installed in the fixing hole 9 A mounting groove 38 is provided between the fixed block 36 and the movable block 37, a support column 39 is movably installed inside the mounting groove 38, a headrest 40 is fixed to one end of the support column 39, a clamping block 43 is fixed on the inner wall of the mounting groove 38, a clamping groove is provided on the support column 39, the clamping block 43 cooperates with the clamping groove, a positioning column 42 is fixed to the side of the movable block 37, a connecting groove 44 is provided on the fixed block 36, a reset mechanism 46 is fixed inside the connecting groove 44, a connecting block 45 is fixed to one end of the reset mechanism 46, one end of the connecting block 45 is fixed to the movable block 37, the reset mechanism 46 is a reset spring, the reset spring pushes the movable block 37 to move in the direction of the fixed block 36, the clamping block 43 on the inner wall of the movable block 37 enters into the clamping groove on the side of the support column 39 to limit and fix the support column 39 as a whole.

[0030] When in use, the device adjusts the installation position of the fixing assembly 10 according to the gap between the support columns 39 on the batch of headrests 40. The fixing block 36 on the fixing assembly 10 is fixedly installed in the fixing hole 9 by the fixing bolt 41 for limit fixing. After the fixing assembly 10 is fixedly installed, the movable block 37 is moved to one side. The connecting block 45 on the movable block 37 stretches the reset mechanism 46 while moving in the connecting groove 44. After the support column 39 is installed in the installation groove 38, the movable block 37 is released. The tension generated by the reset mechanism 46 causes the movable block 37 to move toward the position of the fixed block 36. After the movable block 37 is returned to its position, the clamping block 43 enters the clamping groove on the side of the support column 39 to limit the support column 39. After the support column 39 is limited, the position of the headrest 40 is determined, and the displacement mechanism 24 is started to drive the slider 25 to move in the slide groove 23, so as to move and adjust the overall position of the movable seat 5 so that the headrest 40 on the movable seat 5 is vertically aligned with the extrusion seat 18 up and down. After alignment, the power mechanism 17 and the hydraulic mechanism 16 are started to work, and the power mechanism 17 drives The mounting seat 15 moves downward, and after the mounting seat 15 moves downward to a suitable height, the hydraulic mechanism 16 pushes the extrusion seat 18 to continue to move downward, and the extrusion seat 18 applies pressure after contacting the headrest 40, and the pressure is used to test the stress condition of the headrest 40. Before the test, the support seat 8 is tilted according to requirements, and the support seat 8 is tilted to simulate the stress condition of the car seat and the headrest 40 in the tilted state, and the lifting mechanism 29 is started to move upward. When the lifting mechanism 29 rises, it rotates inside the connecting ear 32 through the rotating shaft 31, and the lifting mechanism 2 9, one end of the support seat 8 is tilted upward, and while tilting, the rotating column 28 slides inside the arc groove 7, and the support seat 8 is tilted and rotated on the fixed ear 34 through the support ear 33, and the fixed ear 34 and the support ear 33 cooperate to provide a supporting fixed point when the support seat 8 rotates. After the support seat 8 and the headrest 40 are tilted, the movable seat 5 moves to adjust the corresponding positions of the headrest 40 and the extrusion seat 18, which is convenient for the subsequent extrusion use. During extrusion, observe whether the support column 39 is deformed under force, so as to test the force limit.

[0031] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automobile headrest dynamometer, comprising a base (1), characterized in that: A fixed seat (2) is welded on the base (1), a fixed groove (3) is opened on the side of the fixed seat (2), a fixed rod (4) is movably installed inside the fixed groove (3), a movable seat (5) is movably installed on the top of the fixed seat (2), a support plate (6) is welded on the movable seat (5), a support seat (8) is movably installed between the support plates (6), a fixing hole (9) is opened on the support seat (8), a fixing component (10) is fixedly installed inside the fixing hole (9), an arc groove (7) is opened on the inner wall of the support plate (6), a rotating column (28) is movably installed inside the arc groove (7), and one end of the rotating column (28) is fixed to the side of the support seat (8).

2. The automobile headrest dynamometer according to claim 1, characterized in that: A support frame (11) is welded to the fixing seat (2), a groove (12) is formed on the inner wall of the support frame (11), a convex block (13) is movably mounted inside the groove (12), and a shielding sealing plate (14) is fixed between the convex block (13) and the groove (12).

3. The automobile headrest dynamometer according to claim 2, characterized in that: A mounting seat (15) is fixed between the protrusions (13), a hydraulic mechanism (16) is fixedly mounted on the mounting seat (15), an extrusion seat (18) is fixed on the hydraulic mechanism (16), and a power mechanism (17) is fixed on the top of the support frame (11).

4. The automobile headrest dynamometer according to claim 3, characterized in that: A screw rod is installed on the power mechanism (17), a threaded hole is installed on the convex block (13), and the screw rod is rotatably installed inside the threaded hole.

5. The automobile headrest dynamometer according to claim 1, characterized in that: The fixed seat (2) is provided with a slide groove (23), a displacement mechanism (24) is fixedly installed inside the slide groove (23), a slider (25) is fixed at one end of the displacement mechanism (24), and one end of the slider (25) is fixed to the bottom of the movable seat (5).

6. The automobile headrest dynamometer according to claim 1, characterized in that: A mounting hole (20) is formed on the side of the base (1), an opening (19) is formed at one end of the mounting hole (20), a fixing column (21) is rotatably mounted inside the mounting hole (20), a limiting plate (22) is fixed at one end of the fixing column (21), and the limiting plate (22) is movably matched with one end of the fixing rod (4).

7. The automobile headrest dynamometer according to claim 1, characterized in that: A limiting block (26) is fixed on the side of the fixing rod (4), a limiting groove is formed on the inner wall of the fixing groove (3), and the limiting block (26) is installed inside the limiting groove via a supporting mechanism (27).

8. The automobile headrest dynamometer according to claim 1, characterized in that: A lifting mechanism (29) is fixedly installed inside the movable seat (5), a through hole (30) is opened on the lifting mechanism (29), a rotating shaft (31) is movably installed inside the through hole (30), a connecting lug (32) is installed on the rotating shaft (31), and the connecting lug (32) is welded to the bottom of the support seat (8).

9. The automobile headrest dynamometer according to claim 1, characterized in that: A fixing lug (34) is welded on the movable seat (5), a supporting lug (33) is fixed on the bottom of the supporting seat (8), a connecting shaft (35) is rotatably mounted between the supporting lug (33) and the fixing lug (34), the fixing assembly (10) comprises a fixing block (36) and a movable block (37), a fixing bolt (41) is rotatably mounted on the fixing block (36), and one end of the fixing bolt (41) is rotatably mounted inside the fixing hole (9).

10. The automobile headrest dynamometer according to claim 9, characterized in that: A mounting groove (38) is provided between the fixed block (36) and the movable block (37); a support column (39) is movably installed inside the mounting groove (38); a headrest (40) is fixed to one end of the support column (39); a clamping block (43) is fixed on the inner wall of the mounting groove (38); a clamping groove is provided on the support column (39); the clamping block (43) cooperates with the clamping groove; a positioning column (42) is fixed to the side of the movable block (37); a connecting groove (44) is provided on the fixed block (36); a reset mechanism (46) is fixed inside the connecting groove (44); a connecting block (45) is fixed to one end of the reset mechanism (46); one end of the connecting block (45) is fixed to the movable block (37).

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