Knob durability test device
By designing a knob durability testing device, which employs a knob fixing component and a loading mechanism, loads can be applied in multiple directions. This solves the problem that traditional devices cannot accurately test knob durability, and enables accurate testing of knob durability and reproduction of extreme scenarios.
Patent Information
- Application Number
- CN202421224163.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-30
AI Technical Summary
Traditional durability testing devices cannot accurately test the durability of knobs, especially since they cannot reproduce extreme scenarios during user use, particularly the extreme scenarios where the gear shift knob is installed on the entire vehicle.
A knob durability testing device was designed, including a knob fixing component and a loading mechanism, which can apply loads in multiple directions to simulate extreme scenarios during user use, including loads in the vertical, parallel and torsional directions. The knob is fixed and loaded by a threaded locking component and a loading mechanism.
It can accurately test the durability of knobs, especially reproducing various extreme scenarios during user operation, including driver and passenger seat movement, front and rear seat movement, seat movement, and abnormal operation, thus improving the accuracy and reliability of the test.
Smart Images
Figure CN222318432U_ABST
Abstract
Description
Technical Field
[0001] The utility model is used in the field of testing devices, in particular to a knob durability testing device. Background Art
[0002] As a commonly used component, knobs have been widely used in various fields. For example, a large number of knobs are used in the central control part of the car. In order to ensure that the knob can work continuously and reliably, it is necessary to use a durability test device to perform durability tests on the knob. Due to the large differences in the actual installation scenarios of various types of knobs, traditional durability test devices cannot accurately test the durability of knobs. In particular, when the shift knob is installed on the whole vehicle, various extreme scenarios during user use cannot be reproduced. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art and provide a knob durability test device.
[0004] The technical solution adopted by the utility model to solve its technical problems is:
[0005] A knob durability test device comprises a knob fixing assembly and a loading mechanism, wherein the knob fixing assembly comprises a knob fixing seat, wherein the knob fixing seat extends from a first surface to a second surface along an axial direction, wherein the first surface is provided with an axial cavity extending axially toward the second surface, wherein the knob fixing seat is provided with a screw hole on the cavity wall of the axial cavity, wherein the screw hole is provided with a threaded locking component for locking the knob in the axial cavity, wherein the loading mechanism is used to be connected to the knob fixing assembly, wherein the loading mechanism can apply a first load, a second load or a third load to the knob fixing seat, wherein the first load is perpendicular to the axial direction, the second load is parallel to the axial direction, and the third load is along a torsional direction with the axis as the axis.
[0006] In combination with the above implementations, in some implementations, one end of the threaded locking component extends into the axial cavity and abuts against the gasket in the axial cavity, and the other end of the threaded locking component extends out of the knob fixing seat and is provided with a pull ring.
[0007] In combination with the above implementations, in some implementations, the threaded locking component includes a first threaded locking component, a second threaded locking component, a third threaded locking component and a fourth threaded locking component, the first threaded locking component and the second threaded locking component are symmetrically arranged on both sides of the knob fixing seat along a first direction, the third threaded locking component and the fourth threaded locking component are symmetrically arranged on both sides of the knob fixing seat along a second direction, and the first direction and the second direction are perpendicular to the axial direction.
[0008] In combination with the above implementations, in some implementations, the loading mechanism includes a traction assembly and a first traction rope, the traction assembly is connected to the pull ring of the threaded locking component through the first traction rope, and the first traction rope is connected in series to a first force sensor.
[0009] In combination with the above implementations, in some implementations, a second traction rope is further included, wherein the second traction rope is connected to a pull ring of a threaded locking component in a direction symmetrical to the first traction rope, and the second traction rope is connected in series to the first displacement sensor.
[0010] In combination with the above implementations, in some implementations, the loading mechanism includes a gantry and a top pressure assembly, the top pressure assembly acts on the knob fixing seat from the top, and a second force sensor is provided between the top pressure assembly and the gantry.
[0011] In combination with the above-mentioned implementations, in some implementations, the top pressure assembly includes a top support, a bottom support, a connecting rod assembly and a bidirectional screw, and the connecting rod assembly includes a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, the first end of the first connecting rod is hinged to the top support, the first end of the second connecting rod is hinged to the bottom support, the second end of the first connecting rod is hinged to the second end of the second connecting rod, a first nut cooperating with the bidirectional screw is provided at the hinge position of the first connecting rod and the second connecting rod, the first end of the third connecting rod is hinged to the top support, the first end of the fourth connecting rod is hinged to the bottom support, the second end of the third connecting rod is hinged to the second end of the fourth connecting rod, and a second nut cooperating with the bidirectional screw is provided at the hinge position of the third connecting rod and the fourth connecting rod.
[0012] In combination with the above implementations, in some implementations, a second displacement sensor is further included, and the second displacement sensor is arranged on the gantry and connected to the knob fixing seat through a third traction rope.
[0013] In combination with the above implementations, in certain implementations, a torsion seat coaxial with the axis is provided on the second surface of the knob fixing seat, and a torsion force application surface is provided on the outer peripheral surface of the torsion seat.
[0014] In combination with the above implementations, in certain implementations, the loading mechanism includes a torsion assembly that can be connected to the torsion seat, and a torque sensor is provided between the torsion assembly and the torsion seat.
[0015] One of the above technical solutions has at least one of the following advantages or beneficial effects: The technical solution of the utility model can perform durability tests on the knob for various knob operating scenarios that may occur during user use, wherein, during the test, the first surface of the knob fixing seat is first facing the knob, and the knob is embedded in the axial cavity, and then the threaded locking component in the screw hole is adjusted so that the knob fixing seat is stably fixed to the knob. Thereafter, the first load, the second load or the third load can be applied to the knob fixing seat through the loading mechanism to simulate the movement of the main and co-drivers-lateral load, the movement of the front and rear rows-longitudinal load, the sitting pressure during position movement-vertical load or abnormal operation / violent operation-torque load, etc. Compared with the traditional durability test device, the technical solution of the utility model can accurately test the durability of the knob. In particular, when the shift knob is installed on the whole vehicle, various extreme scenarios during user use can be well reproduced.
[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0018] Figure 1 This is a schematic structural diagram of an embodiment of the knob fixing assembly of the utility model from a first perspective;
[0019] Figure 2 yes Figure 1 A schematic diagram of the structure of an embodiment from a second viewing angle is shown;
[0020] Figure 3 This is a schematic diagram of a loading mechanism applying a lateral load in one embodiment of the utility model;
[0021] Figure 4 This is a schematic diagram of the actual use state of a loading mechanism applying a lateral load in one embodiment of the utility model;
[0022] Figure 5 This is a schematic diagram of a loading mechanism applying a longitudinal load in one embodiment of the utility model;
[0023] Figure 6 It is a schematic diagram of a loading mechanism applying a vertical load in one embodiment of the utility model;
[0024] Figure 7 This is a schematic diagram of the actual use state of a loading mechanism applying a vertical load in one embodiment of the utility model;
[0025] Figure 8It is a schematic diagram of a loading mechanism applying a torque load in one embodiment of the utility model. DETAILED DESCRIPTION
[0026] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0027] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.
[0028] In the present utility model, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present utility model, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0029] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.
[0030] The embodiment of the utility model provides a knob durability test device, which can be used for durability test of automobile shift knobs.
[0031] See also Figure 1-Figure 8The knob durability test device includes a knob fixing assembly 100 and a loading mechanism 200. The knob fixing assembly 100 includes a knob fixing seat 101. The knob fixing seat 101 extends from a first surface 102 to a second surface 103 along the axial direction. The first surface 102 is provided with an axial cavity 104 extending axially toward the second surface 103. The inner diameter of the axial cavity 104 is larger than the outer diameter of the knob, and is used for the knob to be embedded therein. The knob fixing seat 101 is provided with a screw hole on the cavity wall of the axial cavity 104. The screw hole is provided with a threaded locking component 105 for locking the knob in the axial cavity 104. The threaded locking component 105 is threadedly matched with the screw hole. The threaded locking component 105 can be adjusted in a radial position in the screw hole by rotating in the screw hole, thereby locking or releasing the knob in the axial cavity 104. The loading mechanism 200 is used to connect with the knob fixing assembly 100, and the loading mechanism 200 can apply a first load, a second load or a third load to the knob fixing seat 101, wherein the first load is perpendicular to the axial direction, the second load is parallel to the axial direction, and the third load is along the torsion direction with the axis as the axis. The embodiment of the utility model adopts a sleeve-type knob fixing seat 101, which can ensure the load application requirements of the knob in multiple directions such as perpendicular to the axial direction, parallel to the axial direction, and along the torsion direction with the axis as the axis. The embodiment of the utility model can perform durability tests when the knob is installed on the whole vehicle, so that various extreme scenes during user use can be well reproduced.
[0032] Combination Figure 1-Figure 8 The technical solution of the utility model can conduct durability tests on the knob for various knob working conditions that may occur during user use. During the test, the first surface 102 of the knob fixing seat 101 is first directed toward the knob, and the knob is embedded in the axial cavity 104. Then, the threaded locking component 105 in the screw hole is adjusted to stably fix the knob fixing seat 101 to the knob. After that, the first load, the second load, or the third load can be applied to the knob fixing seat 101 through the loading mechanism 200 to simulate the main and co-driver movement-lateral load (the main and co-driver will accidentally hit the shift knob when moving), the front and rear row movement-longitudinal load (the front and rear row will accidentally hit the shift knob when moving), the seat pressure during position movement-vertical load (the seat will accidentally press the shift knob during movement) or abnormal operation / violent operation-torque load (violent rotation of the shift knob), etc. Compared with the traditional durability test device, the technical solution of the utility model can accurately test the durability of the knob. In particular, when the shift knob is installed on the whole vehicle, various extreme scenarios during user use can be well reproduced.
[0033] In some embodiments, see Figure 1 , Figure 2One end of the threaded locking component 105 extends into the axial cavity 104 and abuts against the gasket 106 in the axial cavity 104. The gasket 106 is arc-shaped, and the outer wall of the gasket 106 abuts against the threaded locking component 105. The inner wall of the gasket 106 is used to fit the knob. The gasket 106 can be made of rubber or other materials. On the one hand, it can avoid damage to the knob during the load application process, and on the other hand, it can more effectively limit the knob. In addition, the other end of the threaded locking component 105 extends out of the knob fixing seat 101 and is provided with a pull ring 107. With the help of the pull ring 107, it can be used as a connection point between the loading mechanism 200 and the knob fixing assembly 100, so that the loading mechanism 200 can load the knob fixing assembly 100.
[0034] In some embodiments, see Figure 1 , Figure 2 The thread locking component 105 includes a first thread locking component, a second thread locking component, a third thread locking component and a fourth thread locking component. The first thread locking component and the second thread locking component are symmetrically arranged on both sides of the knob fixing seat 101 along the first direction, and the third thread locking component and the fourth thread locking component are symmetrically arranged on both sides of the knob fixing seat 101 along the second direction. The first direction and the second direction are perpendicular to the axial direction. On the one hand, the first thread locking component, the second thread locking component, the third thread locking component and the fourth thread locking component are circumferentially distributed on the periphery of the knob fixing seat 101, which can better limit and lock the knob and ensure the positioning accuracy of the knob. On the other hand, the first thread locking component, the second thread locking component, the third thread locking component and the fourth thread locking component are arranged in pairs, which is convenient for simulating the main and co-driver movement-lateral load and the front and rear row movement-longitudinal load.
[0035] Further, in some embodiments, see Figure 3-Figure 5 The loading mechanism 200 includes a traction assembly 201 and a first traction rope 202. The traction assembly 201 can be a cylinder or a manual tensioner. The traction assembly 201 is connected to the pull ring 107 of the threaded locking component 105 through the first traction rope 202. The first traction rope 202 is connected in series with the first force sensor 221. The traction assembly 201 can apply a first load to the knob fixing seat 101 through the first traction rope 202, and monitor the change of force through the first force sensor 221.
[0036] For further information, see Figure 3-Figure 5 The loading mechanism 200 also includes a second traction rope 203 , the end of the second traction rope 203 is fixed, the second traction rope 203 is connected to the pull ring 107 of the threaded locking component 105 in a symmetrical direction to the first traction rope 202 , and the second traction rope 203 is connected in series with the first displacement sensor 204 .
[0037] When in use, the traction assembly 201 is finally operated to implement load application. By monitoring the waveform changes (changes in force and displacement) of the data collector, if the loading force rises non-linearly, the read value is the maximum load that the knob can withstand laterally. The deformation of the knob can also be monitored. The embodiment of the utility model can perform durability tests when the knob is installed on the vehicle, so that various extreme scenarios during user use can be well reproduced.
[0038] In some embodiments, see Figure 6 , Figure 7 The loading mechanism 200 includes a gantry 205 and a top pressing component 206 . The top pressing component 206 acts on the knob fixing seat 101 from the top. A second force sensor 207 is provided between the top pressing component 206 and the gantry 205 .
[0039] For further information, see Figure 6 , Figure 7 , and also includes a second displacement sensor 208, which is arranged on the gantry 205 and connected to the knob fixing seat 101 through a third traction rope 209.
[0040] The top pressure assembly 206 is operated to implement load loading. By monitoring the waveform changes (changes in force and displacement) of the data collector, if the loading force does not rise nonlinearly, the value read out is the maximum load that the knob can bear vertically. The deformation of the knob can also be monitored. The embodiment of the utility model can perform durability tests when the knob is installed on the whole vehicle, so that various extreme scenes in the user's use process can be well reproduced.
[0041] The top pressure assembly 206 can be a jack, a cylinder or a gas cylinder. In some embodiments, see 6, Figure 7The top pressure assembly 206 includes a top support 210, a bottom support 211, a connecting rod assembly and a bidirectional screw 212, the connecting rod assembly includes a first connecting rod 213, a second connecting rod 214, a third connecting rod 215 and a fourth connecting rod 216, the first end of the first connecting rod 213 is hinged to the top support 210, the first end of the second connecting rod 214 is hinged to the bottom support 211, the second end of the first connecting rod 213 is hinged to the second end of the second connecting rod 214, a first nut 217 cooperating with the bidirectional screw 212 is provided at the hinge position of the first connecting rod 213 and the second connecting rod 214, the first end of the third connecting rod 215 is hinged to the top support 210, the first end of the fourth connecting rod 216 is hinged to the bottom support 211, the second end of the third connecting rod 215 is hinged to the second end of the fourth connecting rod 216, and a second nut cooperating with the bidirectional screw 212 is provided at the hinge position of the third connecting rod 215 and the fourth connecting rod 216. In this embodiment, the extension and retraction of the pressing assembly 206 in the height direction can be quickly achieved by rotating the bidirectional screw 212, thereby achieving the application of a vertical load to the knob.
[0042] In some embodiments, see Figure 2 The second surface 103 of the knob fixing seat 101 is provided with a torsion seat 108 coaxial with the axis, and the outer peripheral surface of the torsion seat 108 is provided with a torsion force application surface. The torsion seat 108 can be a nut and welded to the second surface 103 of the knob fixing seat 101.
[0043] See also Figure 8 The loading mechanism 200 includes a torsion assembly 219 that can be connected to the torsion seat 108 . The torsion assembly 219 can be a wrench. A torque sensor 220 is provided between the torsion assembly 219 and the torsion seat 108 .
[0044] During the test, the torsion assembly 219 is operated to rotate the torsion seat 108 clockwise or counterclockwise, and the waveform change (torque change) of the monitoring data collector is monitored. If the torque rises non-linearly, the read value is the maximum torsion load that the knob can withstand vertically. The embodiment of the utility model can perform durability tests when the knob is installed on the whole vehicle, so that various extreme scenes during user use can be well reproduced.
[0045] In the description of this specification, the description with reference to the terms "example", "embodiment" or "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0046] Of course, the invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A knob durability test device, characterized in that: The invention comprises a knob fixing assembly and a loading mechanism, wherein the knob fixing assembly comprises a knob fixing seat, wherein the knob fixing seat extends from a first surface to a second surface along an axial direction, wherein the first surface is provided with an axial cavity extending axially toward the second surface, wherein the knob fixing seat is provided with a screw hole on the cavity wall of the axial cavity, wherein the screw hole is provided with a threaded locking component for locking the knob in the axial cavity, wherein the loading mechanism is used to be connected with the knob fixing assembly, and wherein the loading mechanism can apply a first load, a second load or a third load to the knob fixing seat, wherein the first load is perpendicular to the axial direction, the second load is parallel to the axial direction, and the third load is along a torsional direction with the axis as the axis.
2. The knob durability test device according to claim 1, characterized in that: One end of the thread locking component extends into the axial cavity and abuts against the gasket in the axial cavity, and the other end of the thread locking component extends out of the knob fixing seat and is provided with a pull ring.
3. The knob durability test device according to claim 2, characterized in that: The thread locking component includes a first thread locking component, a second thread locking component, a third thread locking component and a fourth thread locking component. The first thread locking component and the second thread locking component are symmetrically arranged on both sides of the knob fixing seat along a first direction, and the third thread locking component and the fourth thread locking component are symmetrically arranged on both sides of the knob fixing seat along a second direction. The first direction and the second direction are perpendicular to the axial direction.
4. The knob durability test device according to claim 3, characterized in that: The loading mechanism comprises a traction assembly and a first traction rope, the traction assembly is connected to the pull ring of the threaded locking component through the first traction rope, and the first traction rope is connected in series with a first force sensor.
5. The knob durability test device according to claim 4, characterized in that: It also includes a second traction rope, which is connected to a pull ring of a threaded locking component in a symmetrical direction to the first traction rope, and the second traction rope is connected in series with the first displacement sensor.
6. The knob durability test device according to claim 1, characterized in that: The loading mechanism comprises a gantry and a top-pressing assembly, wherein the top-pressing assembly acts on the knob fixing seat from the top, and a second force sensor is arranged between the top-pressing assembly and the gantry.
7. The knob durability test device according to claim 6, characterized in that: The top pressure assembly includes a top support, a bottom support, a connecting rod assembly and a bidirectional screw, and the connecting rod assembly includes a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod. The first end of the first connecting rod is hinged to the top support, the first end of the second connecting rod is hinged to the bottom support, the second end of the first connecting rod is hinged to the second end of the second connecting rod, and a first nut cooperating with the bidirectional screw is provided at a hinge position between the first connecting rod and the second connecting rod. The first end of the third connecting rod is hinged to the top support, the first end of the fourth connecting rod is hinged to the bottom support, the second end of the third connecting rod is hinged to the second end of the fourth connecting rod, and a second nut cooperating with the bidirectional screw is provided at a hinge position between the third connecting rod and the fourth connecting rod.
8. The knob durability test device according to claim 6, characterized in that: It also includes a second displacement sensor, which is arranged on the gantry and connected to the knob fixing seat through a third traction rope.
9. The knob durability test device according to claim 1, characterized in that: A torsion seat coaxial with the axis is provided on the second surface of the knob fixing seat, and a torsion force application surface is provided on the outer peripheral surface of the torsion seat.
10. The knob durability test device according to claim 9, characterized in that: The loading mechanism comprises a torsion assembly which can be connected to the torsion seat, and a torque sensor is arranged between the torsion assembly and the torsion seat.