Tool for static pressure test of rear backrest support of electric bicycle and static pressure test bed
By designing adjustable static pressure test tooling, the problem of fixture replacement in static pressure test of backrest brackets of different models of electric bicycles was solved, and rapid fixation and angle adjustment were achieved, which improved detection efficiency and test stability.
Patent Information
- Application Number
- CN202420007451.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-03
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-01-03
AI Technical Summary
In the static pressure test, the existing electric bicycle rear seat backrest brackets need to replace different tooling fixtures due to the different bending angles and installation hole positions of different models, which increases the time cost and labor amount and reduces the detection efficiency.
A static pressure test tool for static pressure testing including a support base plate, a first support base, a second support base, a mounting plate, an adjustment threaded rod and an adjustment column are designed. Different models are realized through the swing of the mounting plate and the up and down movement of the adjustment column. Quick fixation and angle adjustment of the backrest bracket ensure vertical pressure between the hydraulic cylinder and the bracket.
It improves the versatility and operating efficiency of the test bench, avoids test errors caused by different angles, and ensures the stability and accuracy of the test.
Smart Images
Figure CN222212206U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric bicycle component detection, in particular to a tool and a static pressure test bench for a static pressure test of a rear backrest bracket of an electric bicycle. Background Art
[0002] Electric bicycles have a certain range and are highly maneuverable, so they are widely used as short-distance commuting vehicles. The existing electric bicycles are generally equipped with a backrest bracket on the rear seat, which can improve the riding safety of the rear seat passengers. At present, after the production of the backrest bracket of the rear seat of the electric bicycle is completed, in order to ensure its safety, the backrest bracket needs to be subjected to a static pressure test. On the traditional static pressure test bench, the backrest bracket is not easy to clamp. Different models of backrest brackets have different bending angles and installation holes. Therefore, the static pressure test requires the replacement of different tooling fixtures, which increases the time cost and the labor of the experimenter. Utility Model Content
[0003] The utility model aims to provide a tooling and a static pressure test bench for a static pressure test of a rear backrest bracket of an electric bicycle. The test tooling can be used to quickly clamp and fix backrest brackets of different models, thereby helping to improve the static pressure test detection efficiency of the backrest bracket of the test bench.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a tooling for static pressure testing of a rear backrest bracket of an electric bicycle, comprising a supporting base plate, a first supporting seat, a second supporting seat, a mounting plate, an adjusting threaded rod, and an adjusting column, wherein the first supporting seat and the second supporting seat are fixedly arranged on the supporting base plate front and rear, the lower part of the mounting plate is hingedly arranged on the upper part of the first supporting seat, and the mounting plate can swing up and down relative to the first supporting seat, the swing axis of the mounting plate is located in the middle front of the second supporting seat, the mounting plate is used to realize the installation and positioning of backrest brackets of different models, the adjusting threaded rod is fixedly arranged on the upper rear side of the mounting plate, the adjusting column is arranged on the second supporting seat, the adjusting column can be moved up and down and rotated to adjust the positioning relative to the second supporting seat, the adjusting threaded rod is sleeved in the adjusting column along the radial direction of the adjusting column, and the adjusting threaded rod can be moved, adjusted and positioned relative to the adjusting column.
[0005] Preferably, a plurality of mounting areas are provided on the front side wall of the mounting plate, a plurality of threaded holes are provided in each of the mounting areas, and the distribution positions of the plurality of threaded holes in one mounting area correspond to the distribution positions of the mounting holes of a type of backrest bracket.
[0006] Furthermore, the first support seat includes two symmetrical fixing plates, and the two symmetrical fixing plates are symmetrically distributed on the left and right. The bottom of the symmetrical fixing plate is snapped into a first positioning groove correspondingly arranged on the support bottom plate, and the bottom of the symmetrical fixing plate is fixed in the first positioning groove by bolts. A support shaft is fixedly arranged at the lower part of the mounting plate, and the support shaft is rotatably arranged on the upper part of the two symmetrical fixing plates, and the mounting plate is clamped between the two symmetrical fixing plates.
[0007] Furthermore, the second support seat includes two symmetrical guide plates, the bottom of the symmetrical guide plate is snapped into the second positioning groove correspondingly arranged on the support bottom plate, and the symmetrical guide plate is located behind the corresponding symmetrical fixed plate, the bottom of the symmetrical guide plate is fixed in the second positioning groove by bolts, a vertical oblong hole is arranged on each of the symmetrical guide plates, a fixed threaded rod is arranged on the left and right ends of the adjusting column, the fixed threaded rod is sleeved in the corresponding vertical oblong hole, and a locking nut is sleeved on the outer end of the fixed threaded rod.
[0008] Furthermore, a reinforcing plate is fixedly arranged on the upper part of the two symmetrical guide plates.
[0009] Furthermore, two locking nuts located at the front and rear sides of the adjusting column are sleeved on the adjusting threaded rod.
[0010] A static pressure test bench comprises a workbench, a hydraulic cylinder and a tooling for static pressure testing of a rear backrest bracket of an electric bicycle. Two guide slide grooves distributed left and right are arranged on the support base plate, and threaded holes corresponding to the guide slide grooves are arranged on the support table surface of the workbench. Bolts are penetrated through the guide slide grooves and tightened in the corresponding threaded holes to fix the support base plate on the workbench. The mounting plate is located at the lower rear side of the telescopic end of the hydraulic cylinder.
[0011] The beneficial effects of the utility model are as follows: the utility model has a simple structure and is easy to manufacture; the mounting plate utilizes the support shaft to rotate the support and the up and down adjustment support of the adjusting column to realize the adjustment of the inclination angle, and then when different types of backrest brackets are installed on the mounting plate, the verticality of the test surface of the backrest bracket and the hydraulic cylinder can be adjusted to ensure that the hydraulic cylinder can vertically press backrest brackets of different types, avoiding test errors caused by different angles; the mounting plate can realize the rapid fixation of backrest brackets of different types, thereby improving the versatility of the tooling and the test operation efficiency; the mounting plate, the support shaft and the adjusting threaded rod are fixedly connected, and the adjusting threaded rod, the adjusting column and the guide fixing plate are fixedly connected by the locking nut, thereby ensuring that the mounting plate stably supports the backrest bracket and ensures the smooth progress of the test. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0013] Figure 1 This is a schematic diagram of the tooling structure for the static pressure test of the rear backrest bracket of an electric bicycle;
[0014] Figure 2 This is a partial schematic diagram of the tooling used for the static pressure test of the rear backrest bracket of an electric bicycle;
[0015] Figure 3 It is the structural schematic diagram of the static pressure test bench;
[0016] Figure 4 A front view of a second specific embodiment of a mounting plate;
[0017] In the figure: 1 workbench, 2 hydraulic cylinder, 3 support base plate, 4 symmetrical fixing plate, 5 symmetrical guide rod, 6 reinforcement plate, 7 mounting plate, 8 support shaft, 9 adjustment threaded rod, 10 adjustment column, 11 locking nut, 12 bolt, 21 guide slide groove, 22 first positioning groove, 23 second positioning groove, 24 vertical oblong hole, 71 installation area, 711 threaded hole. DETAILED DESCRIPTION
[0018] The following will be combined with specific embodiments and attached Figure 1-4 , the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the preferred embodiments of the utility model, not all of the embodiments. Those skilled in the art can make similar modifications without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0019] The utility model provides a tool for static pressure test of rear backrest bracket of electric bicycle (such as Figure 1As shown), it includes a supporting base plate 3, a first supporting seat, a second supporting seat, a mounting plate 7, an adjusting threaded rod 9, and an adjusting column 10. The first supporting seat and the second supporting seat are fixedly arranged on the supporting base plate 3 front and back, the lower part of the mounting plate 7 is hingedly arranged on the upper part of the first supporting seat, and the mounting plate 7 can swing up and down relative to the first supporting seat, and the swing axis of the mounting plate 7 is located in the middle front of the second supporting seat. The mounting plate 7 is used to realize the installation and positioning of backrest brackets of different models. Specifically, a plurality of mounting areas 71 are arranged on the front side wall of the mounting plate 7, and a plurality of threaded holes 711 are arranged in each of the mounting areas 71. The distribution positions of the plurality of threaded holes 711 in one mounting area 71 correspond to the distribution positions of the mounting holes of one type of backrest bracket. The number of mounting areas 71 and the size and hole spacing of the threaded holes 711 in the mounting area 71 can be determined according to the existing different types of backrest brackets. The mounting hole design type of the bracket is matched and set, so different types of backrest brackets find matching mounting areas according to the design dimensions of their mounting holes, and then the fixed connection between the backrest bracket and the mounting plate 7 can be achieved by bolts. In actual applications, when the backrest bracket is installed on the mounting plate 7, the swing angle of the mounting plate 7 can be adjusted to achieve the adjustment of the placement angle of the backrest bracket, which makes it easier for the test surface of the backrest bracket to match the top pressure part of the static pressure test, thereby ensuring the smooth progress of the static pressure test of the backrest bracket. The adjusting threaded rod 9 is fixedly arranged on the upper rear side of the mounting plate 7, and the adjusting column 10 is arranged on the second support seat. The adjusting column 10 can be moved up and down relative to the second support seat for adjustment and positioning and rotation adjustment and positioning. The adjusting threaded rod 9 is sleeved in the adjusting column 10 along the radial direction of the adjusting column 10, and the adjusting threaded rod 9 can be moved, adjusted and positioned relative to the adjusting column 10. In actual application, the adjusting column 10 can be moved up and down and rotated to adjust the angle, so that the adjusting threaded rod 9 can be adjusted in cooperation with the mounting plate 7. At the same time, the adjusting threaded rod 9 can be fixed on the adjusting column 10, and the adjusting column 10 can be fixed on the second support seat, and then the mounting plate 7 can be fixed after adjustment, so that it can provide stable support for the backrest bracket.
[0020] On the basis of the above embodiment, the specific implementation method of the first support seat is as follows: the first support seat includes two symmetrical fixing plates 4, the two symmetrical fixing plates 4 are symmetrically distributed on the left and right, the bottom of the symmetrical fixing plates 4 is snapped into the first positioning groove 11 correspondingly arranged on the supporting bottom plate 3, and the bottom of the symmetrical fixing plates 4 is fixed in the first positioning groove 22 by bolts. Specifically, two countersunk holes penetrating therethrough are arranged at the bottom of the first positioning groove 22, and threaded holes corresponding to the countersunk holes are arranged at the bottom of the symmetrical fixing plates 4. Countersunk bolts penetrate the countersunk holes and are tightened in the corresponding threaded holes, thereby realizing the fixed setting of the symmetrical fixing plates 4 in the first positioning groove 22. A support shaft 8 is fixedly arranged at the lower part of the mounting plate 7, and the support shaft 8 is rotatably arranged on the upper part of the two symmetrical fixing plates 4. The mounting plate 7 is clamped between the two symmetrical fixing plates 4. The two symmetrical fixing plates 4 can be used to realize the left and right movement limitation of the mounting plate 7, and at the same time, the support shaft 8 is used to realize the up and down swing support of the mounting plate 7.
[0021] On the basis of the above embodiment, the specific implementation of the second support seat is as follows: the second support seat includes two symmetrical guide plates 5, the bottom of the symmetrical guide plates 5 is snapped into the second positioning groove 23 correspondingly arranged on the support bottom plate 3, and the symmetrical guide plates 5 are located behind the corresponding symmetrical fixing plates 4, and the bottom of the symmetrical guide plates 5 is fixed in the second positioning groove 23 by bolts. Specifically, two countersunk holes penetrating therethrough are arranged at the bottom of the second positioning groove 23, and threaded holes corresponding to the countersunk holes are arranged at the bottom of the symmetrical guide plates 5, and the countersunk bolts penetrate the countersunk holes and are tightened in the corresponding threaded holes. , and then the symmetrical guide plate 5 is fixedly arranged in the second positioning groove 23, a vertical oblong hole 24 is arranged on each of the symmetrical guide plates 5, and a fixed threaded rod is arranged on both the left and right ends of the adjusting column 10, and the fixed threaded rod is sleeved in the corresponding vertical oblong hole 24, and the fixed threaded rod can slide up and down and rotate in the vertical oblong hole 24, and then the adjusting column 10 can move up and down and rotate, and a locking nut 11 is sleeved on the outer end of the fixed threaded rod, and the locking nuts 11 on the two fixed threaded rods are tightened synchronously, and then the adjusting column 10 can be fixed on the two symmetrical guide plates 5. Furthermore, in order to further improve the supporting stability of the two symmetrical guide plates 5, a reinforcing plate 6 is fixedly arranged on the upper part of the two symmetrical guide plates 5, and the reinforcing plate 6 is fixedly connected with the symmetrical guide plates 5 by four bolts 12.
[0022] In order to facilitate the movement, adjustment and positioning of the adjusting threaded rod 9 on the adjusting column 10, two locking nuts 11 are arranged on the adjusting threaded rod 9 and located on the front and rear sides of the adjusting column 10. When adjusting the inclination angle of the mounting plate 7, ensure that the adjusting threaded rod 9 and the adjusting column 10 can be moved and adjusted, and simultaneously ensure that the adjusting column 10 can move up and down and rotate. After the inclination angle of the mounting plate 7 is adjusted, keep the inclination angle of the mounting plate 7 unchanged, and then use the locking nut 11 to achieve a fixed connection between the adjusting threaded rod 9 and the adjusting column. At the same time, use the locking nut 11 to fix the adjusting column 10 on the symmetrical guide plate 5, and then achieve angle fixation of the mounting plate 7.
[0023] The utility model also provides a static pressure test bench, comprising a workbench 1, a hydraulic cylinder 2 and the above-mentioned tooling for static pressure test of the rear backrest bracket of the electric bicycle, wherein two guide slots 21 distributed left and right are arranged on the support base plate 3, and threaded holes corresponding to the guide slots 21 are arranged on the support table surface of the workbench 1, and bolts are passed through the guide slots 21 and tightened in the corresponding threaded holes to achieve the fixing of the support base plate 3 on the workbench, and the mounting plate 7 is located at the lower rear side of the telescopic end of the hydraulic cylinder 2. In practical application, when the mounting plate 7 is used to realize the positioning and installation of the backrest bracket, it is necessary to ensure that the test surface of the backrest bracket (i.e., the surface of the hydraulic cylinder 3 pressing the backrest bracket) and the telescopic direction of the hydraulic cylinder 2 are arranged as far as possible, so as to ensure the accuracy of the static pressure test result; when the mounting plate 7 is used to realize the fixed installation of the backrest bracket, the hydraulic cylinder 2 is started, and the telescopic end of the hydraulic cylinder 2 is continuously extended to realize the pressing of the backrest bracket, and when the movable end of the hydraulic cylinder 2 is extended to a specified stroke, the extension action is stopped and it is ensured to be stationary, and then the static pressure test is realized.
[0024] In the present utility model, "upper", "lower", "front", "back", "left" and "right" are relative positions used to conveniently describe positional relationships, and therefore cannot be understood as absolute positions to limit the scope of protection.
[0025] Except for the technical features described in the specification, all other technical features are known technologies to those skilled in the art.
[0026] The above description in combination with the accompanying drawings has detailed the preferred implementation modes and embodiments of the utility model, but the utility model is not limited to the above implementation modes and embodiments. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the concept of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.
Claims
1. A tool for static pressure testing of rear backrest bracket of electric bicycle, characterized by: The cam is fixedly mounted on the support frame, and the adjusting screw thread rod is fixedly mounted on the support frame, wherein the adjusting screw thread rod is fixedly mounted on the support frame, and the adjusting screw thread rod is fixedly mounted on the support frame, wherein the adjusting screw thread rod is fixedly mounted on the support frame, and the adjusting screw thread rod is fixedly mounted on the support frame, wherein the adjusting screw thread rod is fixedly mounted on the upper rear side of the mounting plate, and the adjusting screw thread rod is arranged on the second support seat, and the adjusting screw thread rod is capable of moving up and down and rotating to adjust the positioning relative to the second support seat, and the adjusting screw thread rod is sleeved in the adjusting column along the radial direction of the adjusting column, and the adjusting screw thread rod can be moved, adjusted and positioned relative to the adjusting column.
2. The tooling for static pressure testing of the rear backrest bracket of an electric bicycle according to claim 1, characterized in that: Several mounting areas are provided on the front side wall of the mounting plate, and several threaded holes are provided in each of the mounting areas. The distribution positions of the threaded holes in one mounting area correspond to the distribution positions of the mounting holes of a type of backrest bracket.
3. The tooling for static pressure testing of the rear backrest bracket of an electric bicycle according to claim 2, characterized in that: The first support seat includes two symmetrical fixing plates, which are symmetrically distributed on the left and right. The bottom of the symmetrical fixing plate is snapped into the first positioning groove corresponding to the support bottom plate. The bottom of the symmetrical fixing plate is fixed in the first positioning groove with bolts. A support shaft is fixed at the lower part of the mounting plate. The support shaft is rotatably set on the upper part of the two symmetrical fixing plates, and the mounting plate is clamped between the two symmetrical fixing plates.
4. The tooling for static pressure testing of the rear backrest bracket of an electric bicycle according to claim 3, characterized in that: The second support seat includes two symmetrical guide plates, the bottom of the symmetrical guide plates is snapped into the second positioning groove corresponding to the support base plate, and the symmetrical guide plates are located behind the corresponding symmetrical fixed plates. The bottom of the symmetrical guide plates is fixed in the second positioning groove with bolts, and a vertical oblong hole is provided on each of the symmetrical guide plates. A fixed threaded rod is provided at the left and right ends of the adjusting column, the fixed threaded rod is sleeved in the corresponding vertical oblong hole, and a locking nut is sleeved on the outer end of the fixed threaded rod.
5. The tool for static pressure testing of the rear backrest bracket of an electric bicycle according to claim 4, characterized in that: A reinforcing plate is fixedly arranged on the upper parts of the two symmetrical guide plates.
6. The tool for static pressure testing of the rear backrest bracket of an electric bicycle according to claim 4, characterized in that: Two locking nuts are sleeved on the adjusting threaded rod and are located at the front and rear sides of the adjusting column.
7. A static pressure test bench, comprising a workbench and a hydraulic cylinder, characterized in that: The test bench also includes a tooling for static pressure testing of the rear backrest bracket of an electric bicycle according to claim 5 or 6, wherein two guide slots distributed on the left and right are provided on the support base plate, and threaded holes corresponding to the guide slots are provided on the support table surface of the workbench, and the support base plate is fixed to the workbench by passing bolts through the guide slots and tightening them in the corresponding threaded holes, and the mounting plate is located at the lower rear side of the telescopic end of the hydraulic cylinder.