Portable inclination error calibration device for automobile brake pedal force meter

Abstract

The utility model discloses a portable inclination error calibration device for an automobile brake pedal force meter, which comprises a frame, the frame comprises an upper supporting plate, a lower supporting plate and two vertical rods, each vertical rod is sleeved with an upper wedge-shaped gasket and a lower wedge-shaped gasket, the wedge-shaped surfaces of the two wedge-shaped gaskets face inwards, and the wedge-shaped surfaces of the two wedge-shaped gaskets face inwards. Two ends of the lower supporting plate are respectively provided with a sleeve hole, the lower supporting plate is sleeved on the vertical rod through the sleeve holes, the lower supporting plate is positioned between the two wedge-shaped gaskets, and the lower supporting plate is clamped and inclined by the wedge-shaped surfaces of the upper wedge-shaped gasket and the lower wedge-shaped gasket; a lifting rod; a force sensor; wherein the lifting rod is arranged on the upper supporting plate, and the force sensor is arranged at the bottom end of the lifting rod. The calibration device can calibrate the positive pressure and the inclined pressure of the pedal force meter, and is portable and wide in applicability.

Description

Technical Field

[0001] This utility model relates to the field of metrology and verification, and in particular to a portable automotive brake pedal force gauge tilt error calibration device. Background Technology

[0002] The automotive brake pedal force gauge consists of two parts: a pedal force gauge that measures the pedal force during service braking and a hand-operated force gauge that measures the operating force during parking braking. Each part comprises a pressure and tension sensor and a display instrument. Currently, calibration of this instrument is performed using weights, force sensors, or force standards, which are bulky or heavy, inconvenient to move, and can only be calibrated in a laboratory, failing to meet the requirements for on-site calibration. Summary of the Invention

[0003] The purpose of this invention is to provide a portable automotive brake pedal force gauge tilt error calibration device. One calibration device can calibrate the normal and oblique pressure of the pedal force gauge, making it portable and widely applicable.

[0004] A portable automotive brake pedal force gauge tilt error calibration device includes: a frame comprising an upper support plate and a lower support plate, the frame comprising two uprights, each upright having two wedge-shaped washers fitted on it, the wedge-shaped surfaces of the two wedge-shaped washers facing inwards, a sleeve hole at each end of the lower support plate, the lower support plate being fitted onto the uprights through the sleeve holes, the lower support plate being located between the two wedge-shaped washers, and the lower support plate being clamped and tilted by the wedge-shaped surfaces of the upper and lower wedge-shaped washers; a lifting rod; and a force sensor; wherein the lifting rod is located on the upper support plate, and the force sensor is located at the bottom end of the lifting rod.

[0005] In one embodiment, each of the uprights is further provided with two fastening nuts, one above the other, and the uprights are provided with external threads. Two wedge-shaped washers are located between the two fastening nuts, and the two fastening nuts clamp the two wedge-shaped washers from the top and bottom.

[0006] In one embodiment, a portable automotive brake pedal force gauge tilt error calibration device further includes a pull ring. The lower support plate has a first mounting hole, and the bottom end of the pull ring has a second mounting hole. The sensor is an S-shaped force sensor, and the pull ring is detachably mounted on the S-shaped force sensor. The first mounting hole corresponds to the second mounting hole, and the mounting relationship between the pull ring and the S-shaped force sensor is detachable.

[0007] In one embodiment, the first mounting hole has an opening along the edge of the lower support plate.

[0008] In one embodiment, the sleeve hole is an elongated hole.

[0009] In one embodiment, the lifting rod includes a lead screw, a first cover, a bearing, a second cover, and a thumbtack rod. The lower end of the lead screw is provided with the second cover. The first cover is provided with a first through hole. The opening of the second cover faces downward and the opening of the first cover faces upward. The openings of the first cover and the second cover are connected. The bearing is located between the first cover and the second cover. The large end of the thumbtack rod is located between the second cover and the bearing. The small end of the thumbtack rod passes through the bearing and the first through hole and extends out.

[0010] In one embodiment, the upper support plate is provided with a threaded hole, and the lead screw is screwed into the threaded hole.

[0011] In one embodiment, the second cover is provided with a second through hole, the side wall of the lead screw is provided with a groove and a fastener, the side wall of the second through hole is provided with a fastening hole, the lower end of the lead screw is inserted into the second through hole, and the fastener passes through the fastening hole and is inserted into the groove.

[0012] In one embodiment, the upper support plate and the upright are detachably connected.

[0013] In one embodiment, the lower support plate is provided with a support groove.

[0014] Compared with the prior art, the advantages of the portable automotive brake pedal force gauge tilt error calibration device and method of this utility model are as follows:

[0015] 1. By setting a removable wedge washer, the placement angle of the lower support plate can be adjusted. When the wedge washer is removed, the lower support plate is placed horizontally, which is suitable for calibrating the positive pressure of the pedal force gauge; when the wedge washer is installed, the lower support plate is placed at an angle, which can be used to calibrate the tilt pressure of the pedal force gauge.

[0016] 2. This utility model uses an S-shaped force sensor. When the pull ring is removed, the pressure of the pedal force gauge can be calibrated; when the pull ring is attached to the S-shaped force sensor, the tension of the hand-held force gauge can be calibrated. One calibration device can calibrate both tension and pressure, enabling calibration of various measuring instruments. It is convenient to carry and has wide applicability.

[0017] The present invention will become clearer from the following description and in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the pedal force gauge;

[0020] Figure 2 This is a schematic diagram of the structure of a hand-operated dynamometer;

[0021] Figure 3 This is a schematic diagram of the structure of the hand-operated dynamometer after removing the buckles and pull rods at both ends;

[0022] Figure 4 This is a schematic diagram of the structure when the lower support plate is placed horizontally in an embodiment of this utility model. Figure 1 .

[0023] Figure 5 This is a schematic diagram of the structure when the lower support plate is placed at an angle in this embodiment of the utility model. Figure 2 ;

[0024] Figure 6 This is a partial structural schematic diagram of the portable automotive brake pedal hand lever gauge calibration device according to an embodiment of this utility model;

[0025] Figure 7 This is a schematic diagram of the lifting rod in an embodiment of this utility model;

[0026] Figure 8 yes Figure 7 A schematic diagram of the cross-sectional structure;

[0027] Figure 9 This is a schematic diagram of the structure of the lower support plate in an embodiment of this utility model;

[0028] Figure 10 This is a schematic diagram of the structure of the upper and lower wedge-shaped washers in an embodiment of this utility model;

[0029] Figure 11 This is a schematic diagram of the pull ring structure in an embodiment of this utility model.

[0030] Among them, 10. Frame, 11. Upper support plate, 12. Lower support plate, 13. First mounting hole, 14. Pull ring, 15. S-shaped force sensor, 16. Upright pole, 17. Sleeve hole, 18. Wedge washer, 19. Wedge surface, 20. Fastening nut, 21. Support groove, 22. Screw rod, 23. First cover, 24. Bearing, 25. Second cover, 26. Thumb nail rod, 27. First through hole, 28. Second through hole, 29. Threaded hole, 30. Groove, 31. Fastener, 32. Opening, 33. Base, 34. Handle, 35. Second mounting hole, 36. Semi-circular head screw, 37. Mounting through hole, 38. Mounting nut, 39. Lifting rod, 40. Fastening hole. Detailed Implementation

[0031] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "test" and "display" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] like Figures 4 to 11As shown, the portable automotive brake pedal force gauge tilt error calibration device of this utility model includes a frame 10, which includes an upper support plate 11 and a lower support plate 12. The frame 10 includes two uprights 16, each upright 16 having two wedge-shaped washers 18 fitted on it, with the wedge-shaped surfaces 19 of the two wedge-shaped washers 18 facing inward. Each end of the lower support plate 12 has a sleeve hole 17, through which the lower support plate 12 is fitted onto the upright 16. The lower support plate 12 is located between the two wedge-shaped washers 18 and is clamped and tilted by the wedge-shaped surfaces 19 of the two wedge-shaped washers 18. A lifting rod 39 and a force sensor (in this embodiment, an S-type force sensor 15) are also included. The lifting rod 39 is located on the upper support plate 11, and the force sensor (in this embodiment, an S-type force sensor 15) is located at the bottom end of the lifting rod 39. By using a removable wedge-shaped washer 18, the placement angle of the lower support plate 12 can be adjusted. When the wedge-shaped washer 18 is removed, the lower support plate 12 is placed horizontally, suitable for calibrating the positive pressure of the pedal force gauge. When the wedge-shaped washer 18 is installed, the lower support plate 12 is placed at an angle; in this embodiment, it is placed at a 30° angle, which allows for calibration of the pedal force gauge at a 30° tilt angle. The sleeve hole 17 is an elongated hole, which can accommodate both a flat lower support plate 12 and an angled lower support rod.

[0035] This utility model also includes a pull ring 14. The lower support plate 12 is provided with a first mounting hole 13, and the bottom end of the pull ring 14 is provided with a second mounting hole 35. The pull ring 14 is detachably mounted on the S-shaped force sensor 15. The first mounting hole 13 corresponds to the second mounting hole 35, and the mounting relationship between the pull ring 14 and the S-shaped force sensor 15 is detachable. This utility model uses the S-shaped force sensor 15. When the pull ring 14 is removed, the pressure of the pedal force gauge can be calibrated. When the pull ring 14 is mounted on the S-shaped force sensor 15, the tension of the hand-held force gauge can be calibrated. One calibration device can calibrate tension and pressure, and can realize the calibration of various measuring instruments. It is convenient to carry and has wide applicability. The first mounting hole 13 has an opening 32 on the edge of the lower support plate 12, which allows for easier installation of the hand-held force gauge.

[0036] The S-shaped force sensor 15 has a semi-circular head screw 36 at its lower end, which applies positive pressure to the pedal force gauge using the semi-circular head.

[0037] The frame 10 includes a base 33 and two uprights 16. Each side of the base 33 has an upright 16. Each end of the lower support plate 12 has a sleeve hole 17, through which the lower support plate 12 is fitted onto the uprights 16.

[0038] Each upright 16 is also equipped with two fastening nuts 20, one above the other. The upright 16 has external threads, and two wedge-shaped washers 18 are located between the two fastening nuts 20. The two fastening nuts 20 clamp the two wedge-shaped washers 18 from both the top and bottom, thus enabling the wedge-shaped washers 18 to be detachable.

[0039] The lower support plate 12 is provided with a support groove 21. The support groove 21 is used to place the pedal force gauge and prevent the pedal force gauge from slipping off when tilted.

[0040] The upper support plate 11 and the upright 16 are detachably connected. Each end of the upper support plate 11 has a mounting through hole 37. The upper support plate 11 is fitted onto the upright 16 through the mounting through holes 37. Each upright 16 also has two mounting nuts 38, one above the other. The upper support plate 11 is positioned between the two mounting nuts 38, which are threaded onto the upright 16. The two mounting nuts 38 clamp the upper support plate 11 tightly from both sides. Loosening the mounting nuts 38 allows the upper support plate 11 to be removed from the top of the upright 16. Loosening the fastening nut 20 allows the lower support plate 12 to be removed from the top of the upright 16, allowing the wedge-shaped washer 18 to be fitted onto the upright 16 and onto both sides of the lower support plate 12, changing the lower support plate 12 from horizontal to inclined. The reverse operation removes the wedge-shaped washer 18, changing the lower support plate 12 from inclined to horizontal.

[0041] The lifting rod 39 includes a lead screw 22, a first cover 23, a bearing 24, a second cover 25, and a thumbtack rod 26. The lower end of the lead screw 22 is provided with the second cover 25. The first cover 23 is provided with a first through hole 27. The opening 32 of the second cover 25 faces downward and the opening 32 of the first cover 23 faces upward. The opening 32 of the first cover 23 and the opening 32 of the second cover 25 are connected. The bearing 24 is located between the first cover 23 and the second cover 25. The large end of the thumbtack rod is located between the second cover 25 and the bearing 24. The small end of the thumbtack rod 26 passes through the bearing 24 and the first through hole 27 and extends out. The first cover 23 and the second cover 25 provide support for the bearing 24. The bearing 24 is set between the thumbtack rod 26 and the lead screw 22 to achieve rolling engagement, so that the thumbtack rod and the lead screw 22 can achieve rotational engagement. The upper end of the lead screw 22 is provided with a handle 34. When the handle 34 is turned, the lead screw 22 rotates while the thumbtack rod remains stationary. The upper support plate 11 is provided with a threaded hole 29. The lead screw 22 is screwed into the threaded hole 29. The rotation of the lead screw 22 in the threaded hole 29 can realize the raising and lowering of the lifting rod 39.

[0042] The second cover 25 has a second through hole 28. The side wall of the lead screw 22 has a groove 30 and a fastener 31. The side wall of the second through hole 28 has a fastening hole 40. The lower end of the lead screw 22 is inserted into the second through hole 28, and the fastener 31 passes through the fastening hole 40 and is inserted into the groove 30. The lead screw 22 and the second cover 25 are separate and detachable. Several fasteners 31 are provided. By adjusting the depth of the fasteners 31 inserted into the grooves 30 in various directions, the lead screw 22 and the thumbtack rod 26 can be made coaxial, ensuring the accuracy of applied pressure and tension. The fasteners 31 can be threaded into the fastening holes 40.

[0043] When using this invention for calibration:

[0044] (a) Calibration Figure 1 When measuring the pedal force as shown, first, calibrate the positive pressure: without placing the wedge washer 18, keep the upper support plate 11 and lower support plate 12 horizontal, as shown. Figure 4 As shown. Remove the pull ring 14 and place the pedal force gauge to be tested in the middle of the lower support plate 12. Rotate the handle 34 to lower the lifting rod 39 and move the S-shaped force sensor 15 downwards. The semi-circular head screw 36 on the S-shaped force sensor 15 should contact the center position of the pedal force gauge. If the stroke is insufficient, the height of the upper and lower support plates 12 can be adjusted. Continue to rotate the handle 34 to apply force, and read the force values ​​detected by the pedal force gauge and the S-shaped force sensor 15 respectively. This allows for the measurement of the pedal force gauge indication error and the calibration of the pedal force gauge.

[0045] Secondly, perform calibration of the 30° inclined pressure: install four 30° wedge-shaped washers 18 between the lower support plate 12 and the fastening nut 20, tilting the lower support plate 12 at 30°. At this time, the side of the lower support plate 12 with the supporting groove 21 faces upwards. Figure 5 As shown, the pedal force gauge under test is placed in the support groove 21 to prevent it from slipping. By repeating the previous measurement steps for the indication error, the tilt error of the pedal force gauge when tilted at 30° can be measured and calibrated.

[0046] (ii) When calibrating the hand-pull timer, do not place the wedge washer 18, and keep the upper support plate 11 and lower support plate 12 horizontal. Figure 4 As shown, demolition as Figure 2 The buckle or lever of the hand-operated dynamometer shown is as follows: Figure 3 As shown, there is a screw on each side of the hand-held force gauge. The pull ring 14 is hung in the groove 30 of the S-shaped force sensor 15. The screw on one side of the hand-held force gauge is screwed into the second mounting hole 35 of the pull ring 14 and connected to it. The screw on the other side of the hand-held force gauge is inserted into the first mounting hole 13 of the lower support plate 12 through the opening 32 and fixed with a nut and washer. Rotating the handle 34 raises the lifting rod 39 to apply a pulling force. The force values ​​detected by the hand-held force gauge and the S-shaped force sensor 15 are read respectively, thus realizing the measurement and calibration of the error of the hand-held force gauge reading.

[0047] The present invention has been described above in conjunction with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations made in accordance with the essence of the present invention.

Claims

1. A portable automotive brake pedal force gauge tilt error calibration device, characterized in that, include: The frame includes an upper support plate and a lower support plate. The frame includes two uprights, each upright having two wedge-shaped washers fitted on it, with the wedge-shaped surfaces of the two wedge-shaped washers facing inward. Each end of the lower support plate has a sleeve hole, through which the lower support plate is fitted onto the upright. The lower support plate is located between the two wedge-shaped washers and is clamped and tilted by the wedge-shaped surfaces of the upper and lower wedge-shaped washers. The lifting mast; Force sensor; The lifting rod is located on the upper support plate, and the force sensor is located at the bottom end of the lifting rod.

2. The portable automotive brake pedal force gauge tilt error calibration device according to claim 1, characterized in that, Each of the uprights is also provided with two fastening nuts, one above the other. The uprights are provided with external threads. Two wedge-shaped washers are located between the two fastening nuts. The two fastening nuts clamp the two wedge-shaped washers from the top and bottom.

3. The portable automotive brake pedal force gauge tilt error calibration device according to claim 1, characterized in that, It also includes a pull ring. The lower support plate has a first mounting hole, and the bottom end of the pull ring has a second mounting hole. The sensor is an S-shaped force sensor. The pull ring is detachably mounted on the S-shaped force sensor. The first mounting hole corresponds to the second mounting hole, and the mounting relationship between the pull ring and the S-shaped force sensor is detachable.

4. The portable automotive brake pedal force gauge tilt error calibration device according to claim 3, characterized in that, The first mounting hole has an opening along the edge of the lower support plate.

5. The portable automotive brake pedal force gauge tilt error calibration device according to claim 1, characterized in that, The sleeve hole is an elongated hole.

6. The portable automotive brake pedal force gauge tilt error calibration device according to claim 1, characterized in that, The lifting rod includes a lead screw, a first cover, a bearing, a second cover, and a thumbtack rod. The lower end of the lead screw is provided with the second cover. The first cover has a first through hole. The opening of the second cover faces downward and the opening of the first cover faces upward. The openings of the first cover and the second cover are connected. The bearing is located between the first cover and the second cover. The large end of the thumbtack rod is located between the second cover and the bearing. The small end of the thumbtack rod passes through the bearing and the first through hole and extends out.

7. A portable automotive brake pedal force gauge tilt error calibration device according to claim 6, characterized in that, The upper support plate is provided with a threaded hole, and the lead screw is screwed into the threaded hole.

8. A portable automotive brake pedal force gauge tilt error calibration device according to claim 6, characterized in that, The second cover has a second through hole, the side wall of the lead screw has a groove and a fastener, the side wall of the second through hole has a fastening hole, the lower end of the lead screw is inserted into the second through hole, and the fastener passes through the fastening hole and is inserted into the groove.

9. A portable automotive brake pedal force gauge tilt error calibration device according to any one of claims 1-8, characterized in that, The upper support plate and the upright are detachably connected.

10. A portable automotive brake pedal force gauge tilt error calibration device according to any one of claims 1-8, characterized in that, The lower support plate is provided with a support groove.

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