Composite telescopic test device
By designing a composite telescopic testing device including a fixed bracket, a moving bracket, a torsion bracket and a driving component, the problems of complexity, size and high cost in the prior art are solved, and flexible telescopic and torsion tests on the seat skin specimens are realized, reducing equipment complexity and cost.
Patent Information
- Application Number
- CN202421109987.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The axle-folding test equipment used in the prior art for evaluating the anti-pleasure of the skin of the car seat in the prior art is complex in structure, large in size, and high in cost, and cannot change the torsion angle of the initial clamping of the sample.
A composite telescopic testing device is designed, including a fixed bracket, a moving bracket, a torsion bracket, a torsion guide structure and a driving component. The driving component drives the moving bracket to reciprocate along the guide rail, and the sample realizes telescopic and torsion tests between the fixed bracket and the torsion bracket.
The composite telescopic test of the seat skin sample is realized, which can simulate the actual use environment more flexibly, reduce the complexity and cost of the equipment, and can adjust the initial clamping angle of the sample.
Smart Images
Figure CN222671618U_ABST
Abstract
Description
Technical Field
[0001] The utility model is used in the field of test devices, in particular to a composite telescopic test device. Background Art
[0002] The wrinkle resistance of the car seat surface is directly related to the appearance quality, comfort and durability of the seat. The leather seat surface can maximize the design effect of the vehicle interior designer, which is also the performance goal pursued by engineers and the actual needs of users. Most leather seats cannot rebound quickly after being compressed in actual situations, and crack at low temperatures, which greatly affects the quality of the vehicle interior and may damage the brand reputation and cause user dissatisfaction. Therefore, choose high-quality surface materials to ensure that they have sufficient elasticity and toughness to quickly return to their original state when subjected to external forces.
[0003] At present, the prior art generally evaluates the wrinkle resistance of materials through an axis-around-bending test. This kind of testing equipment has a complex structure and is large-scale. It needs to have its own low-temperature environment box, which is costly and cannot change the initial clamping torsion angle of the sample. Utility Model Content
[0004] The utility model aims to solve at least one of the technical problems existing in the prior art and provide a composite telescopic testing device.
[0005] The technical solution adopted by the utility model to solve its technical problems is:
[0006] A composite telescopic test device comprises a fixed bracket, a movable bracket, a torsion bracket, a torsion guide structure and a driving component, wherein the fixed bracket is provided with a first sample fixing assembly, the movable bracket cooperates with a guide rail and can approach or move away from the fixed bracket along the guide rail under the drive of the driving component, the torsion bracket is installed on the movable bracket via a rotating shaft extending along the guide rail, the torsion bracket is provided with a second sample fixing assembly, the first sample fixing assembly and the second sample fixing assembly correspond to each other and form a sample telescopic test interval therebetween, and the torsion guide structure cooperates with the torsion bracket to cause the torsion bracket to twist around the rotating shaft when moving with the movable bracket.
[0007] In combination with the above implementations, in some implementations, the composite telescopic testing device also includes a first side frame and a second side frame, a gap is left between the first side frame and the second side frame, the fixed bracket is installed between the first side frame and the second side frame, the guide rail includes a first guide rail arranged on the first side frame and a second guide rail arranged on the second side frame, the movable bracket is installed between the first guide rail and the second guide rail corresponding to the fixed bracket, and the torsion bracket is installed on the side of the movable bracket close to the fixed bracket through a rotating shaft in the middle.
[0008] In combination with the above implementations, in some implementations, the torsion bracket extends from the first end to the second end along the length direction, and the torsion guide structure includes a first torsion guide component and a second torsion guide component, the first torsion guide component is arranged on the first side frame and cooperates with the first end of the torsion bracket, and the second torsion guide component is arranged on the second side frame and cooperates with the second end of the torsion bracket.
[0009] In combination with the above-mentioned implementations, in some implementations, the first torsion guide component has a first guide surface, and a guide path that cooperates with the first end of the torsion bracket is defined by the first guide surface. The first torsion guide component can adjust its posture on the first side frame to change the angle between the first guide surface and the guide rail direction. The second torsion guide component has a second guide surface, and a guide path that cooperates with the second end of the torsion bracket is defined by the second guide surface. The second torsion guide component can adjust its posture on the second side frame to change the angle between the second guide surface and the guide rail direction.
[0010] In combination with the above implementations, in some implementations, the first end of the torsion bracket is provided with a first roller that cooperates with the first guide surface, and the second end of the torsion bracket is provided with a second roller that cooperates with the second guide surface.
[0011] In combination with the above-mentioned implementations, in some implementations, the first torsion guide component is provided with a first mounting hole and a first arc-shaped mounting groove with the first mounting hole as the center, and the first mounting hole and the first arc-shaped mounting groove are provided with a first fastener for mounting the first torsion guide component on the first side frame, and the second torsion guide component is provided with a second mounting hole and a second arc-shaped mounting groove with the second mounting hole as the center, and the second mounting hole and the second arc-shaped mounting groove are provided with a second fastener for mounting the second torsion guide component on the second side frame.
[0012] In combination with the above implementations, in some implementations, the fixing bracket has a first sample supporting surface extending along the length direction, the first sample fixing assembly includes a first sample clamping plate and a third fastener, and the first sample clamping plate is installed on the first sample supporting surface through the third fastener.
[0013] In combination with the above implementations, in some implementations, the torsion bracket has a second sample support surface extending along the length direction, the second sample fixing assembly includes a second sample clamp and a fourth fastener, and the second sample clamp is installed on the second sample support surface through the fourth fastener.
[0014] In combination with the above implementations, in certain implementations, the composite telescopic testing device further includes a base, and the driving component, the first side frame and the second side frame are all disposed on the base.
[0015] In combination with the above implementations, in certain implementations, the first guide rail and the second guide rail use guide shafts, and both ends of the motion bracket are installed on the first guide rail and the second guide rail through guide bearings.
[0016] 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 be used for the evaluation of the wrinkle resistance of seat surface. Specifically, when in use, the sample to be tested is first placed in the sample extension test interval between the first sample fixing component and the second sample fixing component, one end of the sample is installed to the first sample fixing component, and the other end is installed to the second sample fixing component, and then the driving component is started to drive the moving bracket to move back and forth, and the sample is reciprocated and extended between the first sample fixing component and the second sample fixing component. During this period, the torsion bracket is twisted around the rotating axis under the action of the torsion guide structure, and finally a composite extension test of the sample is achieved.
[0017] 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
[0018] 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:
[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model from a first viewing angle;
[0020] Figure 2 yes Figure 1 A schematic diagram of the structure of an embodiment from a second viewing angle is shown. DETAILED DESCRIPTION
[0021] 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.
[0022] 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.
[0023] 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.
[0024] 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.
[0025] See also Figure 1 , Figure 2The embodiment of the utility model provides a composite telescopic test device, including a fixed bracket 1, a moving bracket 2, a torsion bracket 3, a torsion guide structure and a driving component 4, wherein the fixed bracket 1 is provided with a first sample fixing assembly, the moving bracket 2 cooperates with the guide rail, and can approach or move away from the fixed bracket 1 along the guide rail under the drive of the driving component 4, the torsion bracket 3 is installed on the moving bracket 2 through a rotating shaft 5 extending along the guide rail, the torsion bracket 3 is provided with a second sample fixing assembly, the first sample fixing assembly corresponds to the second sample fixing assembly, and a sample telescopic test interval is formed therebetween, the torsion guide structure cooperates with the torsion bracket 3, and the torsion guide structure provides the torsion bracket 3 with a torsion guide path inclined to the guide rail through a guide groove or a guide surface, etc., so as to make the torsion bracket 3 twist around the rotating shaft 5 when moving with the moving bracket 2, and the embodiment of the utility model can convert the reciprocating motion output by the driving component 4 to the moving bracket 2 into reciprocating stretching and torsion of the sample, thereby realizing a conforming telescopic test for the sample to be tested.
[0026] Combination Figure 1 , Figure 2 The technical solution of the utility model can be used for wrinkle resistance evaluation of samples such as seat surfaces. Specifically, when in use, the sample 6 to be tested is first placed in the sample expansion and contraction test interval between the first sample fixing component and the second sample fixing component, one end of the sample 6 is installed to the first sample fixing component, and the other end is installed to the second sample fixing component, and then the driving component 4 is started to drive the moving bracket 2 to move back and forth, and the sample 6 is reciprocated and expanded between the first sample fixing component and the second sample fixing component. During this period, the torsion bracket 3 is twisted around the rotating shaft 5 under the action of the torsion guide structure, and finally a composite expansion and contraction test of the sample is achieved.
[0027] It is understandable that the driving component 4 can be an electric cylinder, a pneumatic cylinder, etc. For example, in some embodiments, the driving component 4 is an electric cylinder, which can flexibly change the initial clamping distance to meet the testing requirements of samples 6 of different sizes.
[0028] In some embodiments, see Figure 1 , Figure 2The composite telescopic test device also includes a first side frame 7 and a second side frame 8, with a gap between the first side frame 7 and the second side frame 8, a fixed bracket 1, a moving bracket 2, and a torsion bracket 3 are arranged between the first side frame 7 and the second side frame 8, the fixed bracket 1 is installed between the first side frame 7 and the second side frame 8, the guide rail includes a first guide rail 9 arranged on the first side frame 7 and a second guide rail 10 arranged on the second side frame 8, and the moving bracket 2 is installed between the first guide rail 9 and the second guide rail 10 corresponding to the fixed bracket 1. In this embodiment, in the composite telescopic test device, the fixed bracket 1 is arranged on the first side frame 7 and the second side frame 8 on both sides to form a gantry structure, which keeps the composite telescopic test device stable during the test. At the same time, the first guide rail 9 and the second guide rail 10 provide guidance and support for the moving bracket 2 from both ends to ensure the stability of the reciprocating motion of the moving bracket 2.
[0029] For further information, see Figure 1 , Figure 2 The torsion bracket 3 extends from the first end to the second end along the length direction. The torsion bracket 3 is installed on the side of the moving bracket 2 close to the fixed bracket 1 through the central rotating shaft 5. The torsion guide structure includes a first torsion guide component 11 and a second torsion guide component 12. The first torsion guide component 11 is arranged on the first side frame 7 and cooperates with the first end of the torsion bracket 3. The second torsion guide component 12 is arranged on the second side frame 8 and cooperates with the second end of the torsion bracket 3. In this embodiment, the first torsion guide component 11 and the second torsion guide component 12 are symmetrically arranged on the outside of the torsion bracket 3 relative to the rotating shaft 5, and cooperate with the two ends of the torsion bracket 3 from the positive and negative directions of torsion, respectively. When the torsion bracket 3 reciprocates with the moving bracket 2, stable torsion is achieved with the help of the central rotating shaft 5.
[0030] In some embodiments, see Figure 1 , Figure 2 The first torsion guide component 11 has a first guide surface 13, and the first guide surface 13 defines a guide path that cooperates with the first end of the torsion bracket 3. The first torsion guide component 11 can adjust its posture on the first side frame 7 to change the angle between the first guide surface 13 and the guide rail direction. The second torsion guide component 12 has a second guide surface, and the second guide surface defines a guide path that cooperates with the second end of the torsion bracket 3. The second torsion guide component 12 can adjust its posture on the second side frame 8 to change the angle between the second guide surface and the guide rail direction. In this embodiment, the first guide surface 13 and the second guide surface cooperate with the two ends of the torsion bracket 3 in the positive and negative directions of torsion, respectively, and the torsion angle of the initial clamping of the sample can be changed by adjusting the postures of the first torsion guide component 11 and the second torsion guide component 12 to better simulate the actual use environment.
[0031] For further information, see Figure 1 , Figure 2The first twist guide component 11 is provided with a first mounting hole and a first arc-shaped mounting groove 14 with the first mounting hole as the center. The first mounting hole and the first arc-shaped mounting groove 14 are provided with a first fastener 15 for mounting the first twist guide component 11 on the first side frame 7. When the first twist guide component 11 is adjusted in angle, the first fastener 15 is first loosened, and then the first twist guide component 11 is adjusted with the first fastener 15 of the first mounting hole as the axis, and the first fastener 15 is locked after adjusting to a suitable angle. In this embodiment, the angle adjustment of the first twist guide component 11 can be achieved more accurately and conveniently by means of the first mounting hole and the first arc-shaped mounting groove 14 matched therewith.
[0032] Similarly, the second torsion guide component 12 is provided with a second mounting hole and a second arc-shaped mounting groove with the second mounting hole as the center, and a second fastener for mounting the second torsion guide component 12 on the second side frame 8 is provided in the second mounting hole and the second arc-shaped mounting groove. The adjustment method of the second torsion guide component 12 is similar to that of the first torsion guide component 11, and will not be repeated.
[0033] For further information, see Figure 1 , Figure 2 The first end of the torsion bracket 3 is provided with a first roller 16 that matches the first guide surface 13, and the second end of the torsion bracket 3 is provided with a second roller that matches the second guide surface. The roller matches the guide surface to reduce wear and extend the life of the equipment.
[0034] The first sample fixing assembly can fix the sample by clamping, bolt locking, etc. In some embodiments, see Figure 1 , Figure 2 The fixing bracket 1 has a first sample supporting surface extending along the length direction. The first sample fixing assembly includes a first sample clamping plate 17 and a third fastener 18. The first sample clamping plate 17 is installed on the first sample supporting surface through the third fastener 18. With the help of the first sample clamping plate 17, multiple samples can be stably clamped at the same time.
[0035] The second sample fixing assembly can fix the sample by clamping, bolt locking, etc. In some embodiments, see Figure 1 , Figure 2 The torsion bracket 3 has a second sample supporting surface extending along the length direction. The second sample fixing assembly includes a second sample clamping plate 19 and a fourth fastener 20. The second sample clamping plate 19 is installed on the second sample supporting surface through the fourth fastener 20. With the help of the first sample clamping plate 17, multiple samples can be stably clamped at the same time.
[0036] In some embodiments, see Figure 1 , Figure 2The composite telescopic test device also includes a base 21, and the driving component 4, the first side frame 7 and the second side frame 8 are all arranged on the base 21. The whole device is simple and miniaturized, and can be directly put into most low-temperature environment boxes on the market for operation. It has low cost and can be used as a test machine for evaluating the wrinkle resistance of seat skins used in low-temperature environment conditions.
[0037] The guide rail can be a guide groove, a linear slide rail or a guide shaft. For example, in some embodiments, see Figure 1 , Figure 2 The first guide rail 9 and the second guide rail 10 adopt guide shafts, and both ends of the moving bracket 2 are installed on the first guide rail 9 and the second guide rail 10 through guide bearings 22. The structure is simple and can meet the reciprocating high-strength test requirements.
[0038] 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.
[0039] 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 composite telescopic test device, characterized in that: It includes a fixed bracket, a movable bracket, a torsion bracket, a torsion guide structure and a driving component, the fixed bracket is provided with a first sample fixing component, the movable bracket cooperates with a guide rail and can approach or move away from the fixed bracket along the guide rail under the drive of the driving component, the torsion bracket is installed on the movable bracket through a rotating shaft extending along the guide rail, the torsion bracket is provided with a second sample fixing component, the first sample fixing component and the second sample fixing component correspond to each other, and a sample telescopic test interval is formed therebetween, the torsion guide structure cooperates with the torsion bracket, and is used to make the torsion bracket twist around the rotating shaft when moving with the movable bracket.
2. The composite telescopic test device according to claim 1, characterized in that: The composite telescopic test device also includes a first side frame and a second side frame, a gap is left between the first side frame and the second side frame, the fixed bracket is installed between the first side frame and the second side frame, the guide rail includes a first guide rail arranged on the first side frame and a second guide rail arranged on the second side frame, the movable bracket is installed between the first guide rail and the second guide rail corresponding to the fixed bracket, and the torsion bracket is installed on a side of the movable bracket close to the fixed bracket through a rotating shaft in the middle.
3. The composite telescopic test device according to claim 2, characterized in that: The torsion bracket extends from the first end to the second end along the length direction, and the torsion guide structure includes a first torsion guide component and a second torsion guide component. The first torsion guide component is arranged on the first side frame and cooperates with the first end of the torsion bracket, and the second torsion guide component is arranged on the second side frame and cooperates with the second end of the torsion bracket.
4. The composite telescopic test device according to claim 3, characterized in that: The first torsion guide component has a first guide surface, and a guide path that cooperates with the first end of the torsion bracket is defined by the first guide surface. The first torsion guide component can adjust its posture on the first side frame to change the angle between the first guide surface and the guide rail direction. The second torsion guide component has a second guide surface, and a guide path that cooperates with the second end of the torsion bracket is defined by the second guide surface. The second torsion guide component can adjust its posture on the second side frame to change the angle between the second guide surface and the guide rail direction.
5. The composite telescopic test device according to claim 4, characterized in that: A first roller matched with the first guide surface is disposed at the first end of the torsion bracket, and a second roller matched with the second guide surface is disposed at the second end of the torsion bracket.
6. The composite expansion and contraction test device according to claim 4, characterized in that: The first torsion guide component is provided with a first mounting hole and a first arc-shaped mounting groove with the first mounting hole as the center, and a first fastener for mounting the first torsion guide component on the first side frame is provided in the first mounting hole and the first arc-shaped mounting groove, and the second torsion guide component is provided with a second mounting hole and a second arc-shaped mounting groove with the second mounting hole as the center, and a second fastener for mounting the second torsion guide component on the second side frame is provided in the second mounting hole and the second arc-shaped mounting groove.
7. The composite expansion and contraction test device according to claim 1, characterized in that: The fixing bracket has a first sample supporting surface extending along the length direction. The first sample fixing assembly includes a first sample clamping plate and a third fastener. The first sample clamping plate is installed on the first sample supporting surface through the third fastener.
8. The composite telescopic test device according to claim 1, characterized in that: The torsion bracket has a second sample supporting surface extending along the length direction, and the second sample fixing assembly includes a second sample clamping plate and a fourth fastener, and the second sample clamping plate is installed on the second sample supporting surface through the fourth fastener.
9. The composite telescopic test device according to claim 2, characterized in that: The composite telescopic test device further comprises a base, and the driving component, the first side frame and the second side frame are all arranged on the base.
10. The composite telescopic test device according to claim 2, characterized in that: The first guide rail and the second guide rail adopt guide shafts, and both ends of the motion bracket are installed on the first guide rail and the second guide rail through guide bearings.