Chuck for detecting static elongation and permanent elongation of seat cover and detection device
By improving the clamp structure and weighing disc design, the problem of insufficient clamping force of existing devices on thin fabrics has been solved, achieving higher detection accuracy and adaptability, and making it suitable for static and permanent elongation detection of seat covers.
Patent Information
- Application Number
- CN202520265112.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Existing seat cover static elongation and permanent elongation testing devices have the risk of slippage when clamping thin fabrics, and insufficient clamping force leads to inaccurate testing.
A clamping structure was designed, including an upper clamp and a lower clamp. By adjusting the knob and the spring, it can quickly clamp seat covers of different thicknesses, and enhance the clamping force through the wavy or serrated surface. The bottom of the lower clamp is connected to a weighing disc, and the weights on the disc are placed more stably through the notch to ensure uniform force distribution.
It improves clamping force, enhances the accuracy and versatility of detection, reduces detection errors, is easy to operate, and is adaptable to seat covers of different thicknesses.
Smart Images
Figure CN223597377U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of seat cover testing, specifically relating to a clamp and testing device for measuring the static elongation and permanent elongation of fabrics, artificial leather and insulating materials under certain conditions. Background Technology
[0002] Static elongation refers to the difference between the measured length of a specimen after a certain period of time under load and its original measured length. Permanent elongation refers to the difference between the measured length of a specimen after a specified period of time under unloaded conditions and its original measured length.
[0003] Existing testing devices for detecting the static and permanent elongation of seat covers, such as the one with application number "2022217250447" entitled "A Fabric Static and Permanent Elongation Clamping Testing Device", include an upper clamping assembly and a lower clamping assembly. The upper and lower clamping assemblies have the same structure and are installed in opposite directions when connected. The upper clamping assembly is connected to a fixed frame through a first hanging base, and the lower clamping assembly is connected to a weight through a second hanging base. The fabric to be tested is clamped between the upper and lower clamping assemblies.
[0004] The following describes the clip component, such as... Figure 1 As shown, the upper clamping assembly 1 includes a first hanging base 11, which is rotatably connected to the upper ends of the first left connecting plate 12 and the first right connecting plate 13. The lower end of the first left connecting plate 12 is rotatably connected to the first right clamping plate 15 via a first rotating pin 16, and the lower end of the first right connecting plate 13 is rotatably connected to the first left clamping plate 14 via a first rotating pin 16. A first spring 17 is connected between the two first rotating pins 16. The first right clamping plate 15 is rotatably connected to the first left clamping plate 14. A pair of first clamping plates 18 are arranged opposite to the lower ends of the first right clamping plate 15 and the first left clamping plate 14. Both the upper clamping assembly 1 and the lower clamping assembly 2 clamp the ends of the fabric through the clamping plates. Since both the upper clamping assembly 1 and the lower clamping assembly 2 automatically clamp the fabric using the elastic potential energy of the spring, the clamping force of the upper clamping assembly 1 and the lower clamping assembly 2 is insufficient when the fabric to be tested is thin, which poses a risk of fabric slippage. Utility Model Content
[0005] The purpose of this utility model is to solve the above-mentioned problems and provide a clamp and detection device for detecting the static elongation and permanent elongation of seat covers. The clamp clamps the seat cover through a front pressure plate and a rear pressure plate, and the front pressure plate moves towards the rear pressure plate by rotating the adjustment knob. At this time, the spring can quickly clamp the seat cover with different thicknesses. Therefore, this application can clamp and fix different seat cover thicknesses with greater clamping force and wider versatility.
[0006] In order to achieve the above object, the utility model provides a chuck for static elongation rate and permanent elongation rate detection of seat cover, including upper chuck and lower chuck, the upper chuck includes upper connecting plate, the lower end of upper connecting plate is connected with first rear pressing plate, first rear pressing plate is connected with first front pressing plate and first adjusting pressing plate through first bolt, first spring is equipped on the screw rod between first rear pressing plate and first front pressing plate, first adjusting knob is equipped on first adjusting pressing plate.
[0007] As further optimization, the lower chuck includes second rear pressing plate, the second rear pressing plate is connected with second front pressing plate and second adjusting plate through second bolt, second spring is equipped on the screw rod between second rear pressing plate and second front pressing plate, second adjusting knob is equipped on second adjusting plate, the bottom of second rear pressing plate is connected with connecting rod through lower connecting plate, the bottom of connecting rod is connected with weighing disc.
[0008] As further optimization, the opposite sides of first rear pressing plate and first front pressing plate on the upper chuck are provided with wave surface or sawtooth surface that cooperate to hold seat cover, and the opposite sides of second rear pressing plate and second front pressing plate on the lower chuck are also provided with wave surface or sawtooth surface that cooperate to hold seat cover.
[0009] A detection device for static elongation rate and permanent elongation rate of seat cover, comprising a fixed frame, the top of the fixed frame is provided with at least one upper chuck, and the upper chuck is connected to the fixed frame through an upper connecting plate.
[0010] As further optimization, the bottom of the fixed frame is connected to one side of a platform, and the other side of the platform is provided with a placing rod for placing and fixing disc weights.
[0011] As further optimization, the bottom of the fixed frame is connected to the top of the platform through a connecting plate, and a triangular reinforcing plate is arranged between the fixed frame and the connecting plate.
[0012] As further optimization, one side of the platform is provided with a placing box for placing the lower chuck.
[0013] As further optimization, the bottom of the platform is provided with a roller, and the side of the platform is provided with a handrail.
[0014] As further optimization, one side of the disc weight is provided with an opening.
[0015] Advantages and beneficial effects of the utility model
[0016] 1. The clamp head in the utility model comprises an upper clamp and a lower clamp, the seat cover is clamped between the upper clamp and the lower clamp, the upper end of the seat cover can be clamped through the first rear pressing plate and the first front pressing plate, the first front pressing plate is driven to move towards the first rear pressing plate by rotating the first adjusting knob, the first spring can clamp the seat cover of different thicknesses quickly at this time, thereby improving the clamping force of the upper clamp on the upper end of the seat cover, the lower end of the seat cover can be clamped through the second rear pressing plate and the second front pressing plate, the second front pressing plate is driven to move towards the second rear pressing plate by rotating the second adjusting knob, the second spring can clamp the seat cover of different thicknesses quickly at this time, thereby improving the clamping force of the lower clamp on the lower end of the seat cover, the cooperation of the adjusting knob and the spring can clamp quickly according to the different thicknesses of the seat cover, the clamping force is stronger, and the universality is wider.
[0017] 2. The bottom of the lower clamp is connected with a weighing disc through a connecting rod, different weight disc weights can be placed on the weighing disc according to the different standards of the seat cover, so as to meet the requirements of different loads, and the disc weight in the application is a circular weight, an opening is formed on one side of the disc weight, the disc weight is placed on the weighing disc by penetrating into the connecting rod through the opening, so that the disc weight is placed more stably, the stress of the seat cover is more uniform, and it can be ensured that when a plurality of disc weights are placed on one weighing disc, the stress of the seat cover is also vertically downward, without generating other horizontal directional components, so that the detection error is reduced, and the detection accuracy is improved.
[0018] 3. The detection device in the utility model is provided with a placing rod on one side of the platform, and the disc weight can be placed on the platform by penetrating into the placing rod through the opening when not in use, so that the stability and safety of the disc weight can be ensured.
[0019] 4. The utility model is provided with a placing box on one side of the platform, and the lower clamp can be placed in the placing box when not in use, so as to be stored and taken next time. DRAWINGS
[0020] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced below, and obviously, the drawings in the following description are only the embodiments of the utility model, and those skilled in the art can also obtain other drawings according to the provided drawings without creating creative labor.
[0021] Figure 1 It is the structural diagram of the upper clamp assembly in the prior structure;
[0022] Figure 2 It is the structural diagram of the upper clamp head provided by the embodiment of the utility model;
[0023] Figure 3 is a schematic view of the lower clamp head, the connecting rod and the weighing disc connected according to the embodiment of the utility model;
[0024] Figure 4 is a structural schematic view of the detection device according to the embodiment of the utility model;
[0025] Figure 5 is a structural side view of the detection device according to the embodiment of the utility model;
[0026] Figure 6 is a structural schematic view of the detection device according to the embodiment of the utility model Figure 5 with the left frame removed;
[0027] Figure 7 is a top view of the detection device according to the embodiment of the utility model.
[0028] Prior structure reference signs: The upper clamp assembly 1, the first hanging base 11, the first left connecting plate 12, the first right connecting rod 13, the first left clamping plate 14, the first right clamping plate 15, the first rotating shaft 16, the first spring 17 and the first clamping plate 18.
[0029] Present application reference signs: The upper clamp head 1, the upper connecting plate 11, the first rear pressing plate 12, the first bolt 13, the first front pressing plate 14, the first adjusting pressing plate 15, the first spring 16, the first adjusting knob 17, the lower clamp head 2, the second rear pressing plate 21, the second bolt 22, the second front pressing plate 23, the second adjusting plate 24, the second spring 25, the second adjusting knob 26, the lower connecting plate 27, the connecting rod 28, the weighing disc 29, the wave surface or the sawtooth surface 3, the fixed frame 4, the platform 5, the placing rod 6, the connecting plate 7, the reinforcing plate 8 and the seat cover 9. DETAILED DESCRIPTION
[0030] The terms "first", "second", "third", "fourth" and the like in the description and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a particular order or sequence. It should be understood that the data used in this way can be exchanged under appropriate circumstances, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein.
[0031] The specific implementation of the present application is described in detail below with reference to the drawings. It should be noted that in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application.
[0032] As shown in Figure 1 , Figure 2 and Figure 6 , a chuck for detecting the static elongation and permanent elongation of a seat cover includes an upper chuck 1 and a lower chuck 2 for clamping the upper and lower ends of the seat cover to detect the static elongation and permanent elongation of the seat cover. The upper chuck 1 includes an upper connecting plate 11 which is an L-shaped connecting plate. The lower end of the upper connecting plate 11 is connected to a first rear pressing plate 12 by a bolt. The left and right sides of the first rear pressing plate 12 are connected to a first front pressing plate 14 and a first adjusting pressing plate 15 by first bolts 13. The first rear pressing plate 12 and the first front pressing plate 14 together clamp the upper end of the seat cover. A first spring 16 is sleeved on the screw between the first rear pressing plate 12 and the first front pressing plate 14. The first spring 16 can quickly clamp the seat cover of different thicknesses. When the seat cover is disassembled, it can also help the first front pressing plate 14 and the first adjusting pressing plate 15 quickly return to their original positions. A first adjusting knob 17 is provided on the first adjusting pressing plate 15. The end of the first adjusting knob 17 abuts against the front of the first front pressing plate 14. When the first adjusting knob 17 is rotated, the first adjusting knob 17 will drive the first front pressing plate 14 to move towards the first rear pressing plate 12 to clamp the upper end of the seat cover.
[0033] As shown in Figure 2As shown, the lower clamp head 2 comprises a second rear pressing plate 21, the second rear pressing plate 21 is connected with a second front pressing plate 23 and a second adjusting plate 24 through a second bolt 22, the second rear pressing plate 21 and the second front pressing plate 23 jointly clamp the lower end of the seat cover, a second spring 25 is sleeved on the screw between the second rear pressing plate 21 and the second front pressing plate 23, the second spring 25 can quickly clamp the seat cover with different thickness, and also helps the second front pressing plate 23 and the second adjusting plate 24 quickly return when the seat cover is disassembled, the second adjusting plate 24 is provided with a second adjusting knob 26, the end of the second adjusting knob 26 abuts against the front of the second front pressing plate 23, when the second adjusting knob 26 is rotated, the second adjusting knob 26 drives the second front pressing plate 23 to move towards the second rear pressing plate 21, so as to clamp the lower end of the seat picture, the bottom of the second rear pressing plate 21 is connected with a lower connecting plate 27 through a bolt, the bottom of the lower connecting plate 27 is connected with the upper end of a connecting rod 28 through screwing, the bottom of the connecting rod 28 is connected with a weighing disc 29 through screwing, the weighing disc 29 can place disc weights with different weights according to the different measured seat covers, the disc weights are provided with an aperture matched with the connecting rod 28, the disc weights are placed on the weighing disc 29 after passing through the aperture of the connecting rod 28, in addition to the function of connecting the second rear pressing plate 21 and the weighing disc 29, the connecting rod 28 can also limit the disc weights through the aperture, so that the disc weights can be placed more stably, and the force of the seat cover is more uniform, even if multiple disc weights are placed on one weighing disc 29, the force of the seat cover is also vertically downward, and no horizontal component force is generated, so as to reduce the detection error and improve the detection accuracy.
[0034] In order to further improve the clamping force of the upper clamp head 1 and the lower clamp head 2, the first rear pressing plate 12 and the first front pressing plate 14 of the upper clamp head 1 are provided with wave surfaces or sawtooth surfaces 3 matched with each other on the opposite sides, and the second rear pressing plate 21 and the second front pressing plate 23 of the lower clamp head 2 are provided with wave surfaces or sawtooth surfaces 3 matched with each other on the opposite sides, so as to clamp the upper and lower ends of the seat cover.
[0035] As Figures 4-7As shown, a device for detecting static elongation and permanent elongation of seat cover, comprising a fixed frame 4, the top of which is provided with a plurality of upper clamping heads 1, the upper clamping head 1 is connected to the top of the fixed frame 4 through an upper connecting plate 11, the upper clamping head 1 clamps the upper end of the seat cover 9, the lower end of the seat cover 9 is clamped by a lower clamping head 2, and the seat cover 9 is in a load state by stacking disc weights on the weighing disc 29, the bottom of the frame 4 is connected to the rear side of the top of the platform 5 through the connecting plate 7, in order to make the fixed frame 4 more stable and firm, the embodiment is provided with a triangular reinforcing plate 8 between the fixed frame 4 and the connecting plate 7, the front side of the platform 5 is fixedly connected with a plurality of placement rods 6 for placing and fixing disc weights, a plurality of placement rods 6 can stack disc weights of different weight specifications to meet the requirements of different seat cover loads, in order to facilitate the placement of the lower clamping head 2 after the detection is completed, the embodiment is provided with a placement box for placing the lower clamping head 2 on the right side of the platform 5, in order to facilitate the movement of the detection device as a whole, the embodiment is provided with four rollers at the bottom of the platform 5, in order to facilitate the pushing of the detection device, the embodiment is provided with a handrail on the side of the platform 5.
[0036] Working process
[0037] First, mark two fixed interval cross fine lines on the seat cover as measuring points, then clamp the seat cover between the upper clamping head and the lower clamping head, so that it is flush with the marked measuring points, place disc weights on the weighing disc according to the standard requirements of the clamped seat cover, after a specified time, measure the distance between the two measuring points in the load state, then subtract the original fixed interval length from the length of the two measuring points in the load state to obtain the static elongation, then disassemble the seat cover from the detection device, after a specified time, measure the distance between the two measuring points again, and subtract the original fixed interval length from the measured length to obtain the permanent elongation.
[0038] The detection device can detect a plurality of seat covers at a time, has greater clamping force, is simpler to operate, has wider universality, and has higher detection accuracy.
[0039] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, and not to limit them; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for part or all of the technical features; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the scope of the embodiments of the present application.
Claims
1. A collet for seat cover static elongation and permanent elongation testing, characterized by: The upper clamp head (1) comprises an upper connecting plate (11), the lower end of the upper connecting plate (11) is connected with a first rear pressing plate (12), the first rear pressing plate (12) is connected with a first front pressing plate (14) and a first adjusting pressing plate (15) through a first bolt (13), a first spring (16) is sleeved on the screw rod between the first rear pressing plate (12) and the first front pressing plate (14), and the first adjusting pressing plate (15) is provided with a first adjusting knob (17).
2. The collet for static elongation and permanent elongation testing of seat covers of claim 1, wherein: The lower clamp head (2) comprises a second rear pressing plate (21), the second rear pressing plate (21) is connected with a second front pressing plate (23) and a second adjusting plate (24) through a second bolt (22), a second spring (25) is sleeved on the screw rod between the second rear pressing plate (21) and the second front pressing plate (23), the second adjusting plate (24) is provided with a second adjusting knob (26), and the bottom of the second rear pressing plate (21) is connected with a connecting rod (28) through a lower connecting plate (27), and the bottom of the connecting rod (28) is connected with a weighing disc (29).
3. The collet for detecting the static elongation and permanent elongation of the seat covering according to claim 1 or 2, wherein: The opposite sides of the first rear pressing plate (12) and the first front pressing plate (14) on the upper clamp head (1) are provided with wave surfaces or sawtooth surfaces (3) which cooperate with each other to clamp the seat cover, and the opposite sides of the second rear pressing plate (21) and the second front pressing plate (23) on the lower clamp head (2) are also provided with wave surfaces or sawtooth surfaces (3) which cooperate with each other to clamp the seat cover.
4. A device for detecting static elongation and permanent elongation of a seat covering, characterized by: The fixed frame (4) is provided with at least one clamp head as claimed in any one of claims 1-3 on the top thereof, and the upper clamp head (1) is connected to the fixed frame (4) through the upper connecting plate (11).
5. A device for detecting static elongation and permanent elongation of a seat covering according to claim 4, characterized in that: The bottom of the fixed frame (4) is connected to one side of a platform (5), and the other side of the platform (5) is provided with a placing rod (6) for placing and fixing disc weights.
6. A device for detecting static elongation and permanent elongation of a seat covering according to claim 5, characterized in that: The bottom of the fixed frame (4) is connected to the top of the platform (5) through a connecting plate (7), and a triangular reinforcing plate (8) is arranged between the fixed frame (4) and the connecting plate (7).
7. A device for detecting static elongation and permanent elongation of a seat cover according to claim 5, wherein: One side of the platform (5) is provided with a placing box for placing the lower clamp head (2).
8. A device for detecting static elongation and permanent elongation of a seat cover according to claim 5, wherein: The bottom of the platform (5) is provided with a rolling wheel, and the side surface of the platform (5) is provided with a handrail.
9. A device for detecting static elongation and permanent elongation of a seat cover according to claim 5, wherein: One side of the disc weight is provided with an opening.