A luggage pull rod processing strength detection device
By designing a luggage pull rod testing device with fixed and torsion components and pressure detection components, the problem of the inability to detect torsional load and local compressive strength in the existing technology has been solved, realizing comprehensive strength testing of the pull rod.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HESHENG PRECISION PLASTIC SUZHOU
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-26
AI Technical Summary
Existing luggage handle strength testing devices cannot detect the torsional load and local compressive strength of the handle, and the contact area cannot be changed.
A device including a fixing and torsion assembly and a pressure detection assembly was designed. The device uses a motor to drive an L-shaped fixing plate to perform torsional load testing, adjusts the pressure contact area through a hydraulic press and a dovetail slide, and monitors deformation using an infrared detection device.
It enables effective detection of torsional load and local compressive strength of tie rods, and can change the contact area under constant pressure to provide a more comprehensive strength assessment.
Smart Images
Figure CN224416628U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of luggage handle processing technology, specifically a strength testing device for luggage handle processing. Background Technology
[0002] Bags and luggage are a general term for all kinds of bags used to carry things, including general shopping bags, handbags, clutches, wallets, backpacks, shoulder bags, shoulder bags, waist bags, and various types of suitcases. The materials used for bags and luggage are also more diverse, including genuine leather, PU, polyester, canvas, cotton and linen, etc. After 20 years of rapid development, China's bag and luggage industry now accounts for more than 70% of the global market share. China's bag and luggage industry has achieved a dominant position in the world, not only as the world's manufacturing center but also as the world's largest consumer market. In the bag and luggage production process, the handle is a very important part.
[0003] Among the existing technologies, the strength testing device for tie rod processing proposed in the patent announcement number CN213397973U includes a first support platform, a worktable fixedly connected to the top of the first support platform, lower clamping blocks fixedly connected to the front and rear sides of the top of the worktable, the lower part of the hinge fixedly connected to the top left side of the two sets of lower clamping blocks, the upper part of the hinge fixedly connected to the bottom left side of the upper clamping block, and a clamping groove provided on the side of the upper and lower clamping blocks that are close to each other after the hinge.
[0004] Existing devices can only test the compressive strength of luggage handles, but cannot test the torsional load on luggage handles. At the same time, the contact area of the luggage handle under pressure cannot be changed, so it is impossible to test the local compressive strength of the luggage handle. Therefore, we propose a strength testing device for luggage handle processing. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a strength testing device for bag handle processing. This device can test the compressive strength and torsional load of bag handles. Under constant pressure, by changing the contact area of the bag handle under pressure, the device can test the local compressive strength of the bag handle, which can effectively solve the problems in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a strength testing device for processing luggage handles, comprising a base plate, a fixing and torsion assembly, and a pressure testing assembly;
[0007] Base plate: The upper end is equipped with fixing and torsion components and pressure detection components;
[0008] The fixing and torsion assembly includes a support plate, a motor, and an L-shaped fixing plate. Two support plates are fixedly connected to the upper left and right sides of the base plate. The upper ends of the support plates are rotatably connected to the upper outer sides of the L-shaped fixing plate. Two motors are fixedly connected to the upper left and right sides of the base plate, and the output shafts of the motors are fixedly connected to the L-shaped fixing plate. This device constructs a basic platform through the base plate, and the two support plates and the L-shaped fixing plate form a symmetrical support structure. The motor drives the L-shaped fixing plate to rotate, generating a torsional load, which in turn drives the fixing device to detect the torsional load borne by the tie rod.
[0009] Furthermore, the fixing and torsion assembly also includes a fixing base, a first mounting plate, a lower fixing clamp, an upper fixing plate, a self-locking electric telescopic rod, a second mounting plate, and a telescopic rod. A fixing base is fixedly connected to the lower center of the inner side of the L-shaped fixing plate. The first mounting plate is fixedly connected to the upper end of the fixing base. The lower fixing clamp is fixedly connected to the upper end of the first mounting plate by bolts. The self-locking electric telescopic rod is fixedly connected to the front end of the L-shaped fixing plate, and the telescopic rod is fixedly connected to the rear end of the L-shaped fixing plate. The lower end of the self-locking electric telescopic rod is fixedly connected to the front and rear ends of the self-locking electric telescopic rod and the upper end of the telescopic rod, respectively. The upper fixing plate is fixedly connected to the lower center of the second mounting plate by bolts. Pressure sensors are provided at both ends of the inner side of the lower fixing clamp. The fixing base and the first mounting plate fix the lower fixing clamp. The self-locking electric telescopic rod controls the lifting and lowering of the upper fixing plate through the second mounting plate, cooperating with the telescopic rod to maintain vertical movement accuracy. Pressure detectors are provided on both sides of the second mounting plate where they contact the rod to detect the torsional load on the rod.
[0010] Furthermore, the pressure detection assembly includes a hydraulic press mounting bracket, a hydraulic press, a pressure plate, dovetail grooves, and threaded columns. The hydraulic press mounting bracket is fixedly connected to the middle of the upper rear side of the base plate. The hydraulic press is fixedly connected to the upper end of the mounting bracket, and the pressure plate is fixedly connected to the lower end of the hydraulic press. Multiple dovetail grooves are formed at the lower end of the pressure plate, and threaded columns are fixedly connected to the upper side of the dovetail grooves at the front end of the pressure plate. The hydraulic press mounting bracket supports the hydraulic press driving the pressure plate downwards, and the dovetail grooves and threaded columns fix the pressure application device below.
[0011] Furthermore, the pressure detection component also includes a pressure strip and a nut. The pressure strip is slidably connected to a dovetail groove and a threaded post. The nut is threadedly connected to the threaded post, and a pressure sensor is embedded in the bottom of the pressure strip. The pressure strip is positioned by sliding along the dovetail groove, and the nut locks the threaded post to fix the pressure strip. Adding or removing the pressure strip changes the contact area of the pressure on the pull rod, thus detecting the local pressure strength of the luggage pull rod.
[0012] Furthermore, it also includes a pull rod, the two ends of which are placed between the lower fixing clamp and the upper fixing plate. The pull rod is fixed between the lower fixing clamp and the upper fixing plate, which facilitates the testing of the pull rod.
[0013] Furthermore, the system also includes a high-transparency protective glass panel and infrared detection devices. The high-transparency protective glass panel is fixedly connected to the upper center of the base plate, and multiple infrared detection devices are fixedly connected to the lower end of the high-transparency protective glass panel at the upper center of the base plate. The high-transparency protective glass panel provides a visual observation window while protecting the multiple infrared detection devices, which monitor the surface deformation of the pull rod.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This strength testing device for bag handle processing has the following advantages:
[0015] 1. The strength testing device for the processing of this luggage handle places the handle between the fixing clamp and the fixing plate. Two motors can simultaneously apply torsional load through the L-shaped fixing plate to perform torsion test on the handle. Multiple infrared detection devices monitor the surface deformation of the handle, and the internal pressure detector detects the force applied.
[0016] 2. This strength testing device for luggage handle processing uses a nut to lock the threaded post and fix the pressure strip, forming a modular pressure transmission system. Under constant pressure, adding or removing the pressure strip changes the contact area of the luggage handle under pressure, thus testing the local pressure strength of the luggage handle. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure on the right side of this utility model;
[0019] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.
[0020] In the diagram: 1. Base plate, 2. Tie rod, 3. Fixing and torsion assembly, 31. Support plate, 32. Motor, 33. L-shaped fixing plate, 34. Fixing seat, 35. Mounting plate one, 36. Lower fixing clamp, 37. Upper fixing plate, 38. Self-locking electric telescopic rod, 39. Mounting plate two, 310. Telescopic rod, 4. Pressure detection assembly, 41. Hydraulic press mounting bracket, 42. Hydraulic press, 43. Pressure plate, 44. Dovetail groove, 45. Threaded column, 46. Pressure strip, 47. Nut, 5. High-transparency protective glass plate, 6. Infrared detection device. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-3 This embodiment provides a technical solution: a strength testing device for processing luggage handles, including a base plate 1, a fixing and torsion assembly 3 and a pressure testing assembly 4;
[0023] Base plate 1: The upper end is equipped with fixing and torsion assembly 3 and pressure detection assembly 4;
[0024] The fixing and torsion assembly 3 includes a support plate 31, a motor 32, and an L-shaped fixing plate 33. Two support plates 31 are fixedly connected to the upper left and right sides of the base plate 1, and the upper ends of the support plates 31 are rotatably connected to the upper outer sides of the L-shaped fixing plate 33. Two motors 32 are fixedly connected to the upper left and right sides of the base plate 1, and the output shafts of the motors 32 are fixedly connected to the L-shaped fixing plate 33. This device constructs a basic platform through the base plate 1, and the two support plates 31 and the L-shaped fixing plate 33 form a symmetrical support structure. The motors 32 drive the L-shaped fixing plate 33 to rotate, generating a torsional load, which in turn drives the fixing device to detect the torsional load borne by the tie rod.
[0025] The fixing and torsion assembly 3 also includes a fixing seat 34, a mounting plate 1 35, a lower fixing clamp 36, an upper fixing plate 37, a self-locking electric telescopic rod 38, a mounting plate 2 39, and a telescopic rod 310. The fixing seat 34 is fixedly connected to the lower middle part of the inner side of the L-shaped fixing plate 33. The mounting plate 1 35 is fixedly connected to the upper end of the fixing seat 34. The lower fixing clamp 36 is fixedly connected to the upper end of the mounting plate 1 35 by bolts. The self-locking electric telescopic rod 38 is fixedly connected to the front end of the L-shaped fixing plate 33. The telescopic rod 310 is fixedly connected to the rear end of the L-shaped fixing plate 33. The lower end of the self-locking electric telescopic rod 38 is fixedly connected to the front and rear ends of the self-locking electric telescopic rod 38 and the upper end of the telescopic rod 310, respectively. The upper fixing plate 37 is fixedly connected to the lower middle part of the mounting plate 2 39 by bolts. Pressure sensors are provided at both ends of the inner side of the lower fixing clamp 36. The fixed base 34 and the mounting plate 35 fix the lower fixing clamp 36. The self-locking electric telescopic rod 38 controls the lifting and lowering of the upper fixing plate 37 through the mounting plate 39, and works with the telescopic rod 310 to maintain vertical movement accuracy. Pressure detectors are set on both sides of the mounting plate 39 where it fits against the rod to detect the torsional load on the rod.
[0026] The pressure detection assembly 4 includes a hydraulic press mounting bracket 41, a hydraulic press 42, a pressure plate 43, dovetail grooves 44, and threaded posts 45. The hydraulic press mounting bracket 41 is fixedly connected to the middle of the upper rear side of the base plate 1. The hydraulic press 42 is fixedly connected to the upper end of the hydraulic press mounting bracket 41. The pressure plate 43 is fixedly connected to the lower end of the hydraulic press 42. Multiple dovetail grooves 44 are formed at the lower end of the pressure plate 43, and threaded posts 45 are fixedly connected to the upper side of the dovetail grooves 44 at the front end of the pressure plate 43. The hydraulic press mounting bracket 41 supports the hydraulic press 42 to drive the pressure plate 43 downwards. The dovetail grooves 44 and threaded posts 45 fix the pressure application device below.
[0027] The pressure detection component 4 also includes a pressure strip 46 and a nut 47. The pressure strip 46 is slidably connected to a dovetail groove 44 and a threaded post 45. The nut 47 is threadedly connected to the threaded post 45. A pressure sensor is embedded in the bottom of the pressure strip 46. The pressure strip 46 is positioned by sliding through the dovetail groove 44, and the nut 47 locks the threaded post 45 to fix the pressure strip 46. Adding or removing the pressure strip 46 changes the contact area of the pressure on the pull rod, thus detecting the local pressure strength of the luggage pull rod.
[0028] It also includes a pull rod 2, with both ends of the pull rod 2 placed between the lower fixing clamp 36 and the upper fixing plate 37. The pull rod 2 is fixed between the lower fixing clamp 36 and the upper fixing plate 37, which facilitates the testing of the pull rod 2.
[0029] It also includes a high-transparency protective glass plate 5 and infrared detection devices 6. The high-transparency protective glass plate 5 is fixedly connected to the upper middle part of the base plate 1, and multiple infrared detection devices 6 are fixedly connected to the lower end of the high-transparency protective glass plate 5 at the upper middle part of the base plate 1. The high-transparency protective glass plate 5 provides a visual observation window and protects the multiple infrared detection devices 6, which monitor the surface deformation of the pull rod.
[0030] The working principle of the strength testing device for bag handle processing provided by this utility model is as follows: The base plate 1 serves as a basic platform to support and fix the torsion assembly 3 and the pressure testing assembly 4. The handle 2 is placed between the fixing clamp 36 and the fixing plate 37. Two motors 32 can simultaneously apply torsional loads through the L-shaped fixing plate 33 to perform torsion tests on the handle 2. Multiple infrared detection devices 6 monitor the surface deformation of the handle, or pressure can be applied to the handle 2 through the pressure plate 43 by the hydraulic press 42 to perform pressure tests on the handle 2. The dovetail groove 44 and the threaded column 45 add or remove pressure strips 46 to the pressure strip 46, adding or reducing the position or contact area of the handle under pressure, and testing the local pressure strength of the bag handle.
[0031] It is worth noting that, in the above embodiments, the input terminals of the motor 32, the self-locking electric telescopic rod 38, and the hydraulic press 42 are electrically connected to the output terminal of the external power supply through an external PLC controller, and the output terminal of the infrared detection device 6 is electrically connected to the external PLC controller. The motor 32 is a servo motor, and the external PLC controller controls the operation of the motor 32, the self-locking electric telescopic rod 38, and the hydraulic press 42 using methods commonly used in the prior art.
[0032] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A strength testing device for processing luggage handles, characterized in that: Includes a base plate (1), a fixing and torsion assembly (3), and a pressure detection assembly (4); Base plate (1): The upper end is equipped with a fixing and torsion assembly (3) and a pressure detection assembly (4); The fixing and torsion assembly (3) includes a support plate (31), a motor (32) and an L-shaped fixing plate (33). The upper end of the base plate (1) is fixedly connected to two support plates (31) on the left and right sides respectively. The upper end of the support plate (31) is rotatably connected to the upper outer side of the L-shaped fixing plate (33). The upper end of the base plate (1) is fixedly connected to two motors (32) on the left and right sides respectively. The output shaft of the motor (32) is fixedly connected to the L-shaped fixing plate (33).
2. The strength testing device for processing luggage pull rods according to claim 1, characterized in that: The fixing and torsion assembly (3) also includes a fixing seat (34), a mounting plate one (35), a lower fixing clamp (36), an upper fixing plate (37), a self-locking electric telescopic rod (38), a mounting plate two (39), and a telescopic rod (310). The fixing seat (34) is fixedly connected to the middle of the lower inner side of the L-shaped fixing plate (33). The mounting plate one (35) is fixedly connected to the upper end of the fixing seat (34). The lower fixing clamp (36) is fixedly connected to the upper end of the mounting plate one (35) by bolts. The front end of the L-shaped fixing plate (33) is fixedly connected to a self-locking electric telescopic rod (38), and the rear end of the L-shaped fixing plate (33) is fixedly connected to a telescopic rod (310). The lower end of the self-locking electric telescopic rod (38) is fixedly connected to the upper end of the self-locking electric telescopic rod (38) and the telescopic rod (310) respectively. The lower middle part of the mounting plate (39) is fixedly connected to an upper fixing plate (37) by bolts. Pressure sensors are provided at both ends of the inner side of the lower fixing clamp (36).
3. The strength testing device for processing luggage pull rods according to claim 1, characterized in that: The pressure detection assembly (4) includes a hydraulic press mounting bracket (41), a hydraulic press (42), a pressure plate (43), a dovetail groove (44), and a threaded column (45). The hydraulic press mounting bracket (41) is fixedly connected to the middle of the upper rear side of the base plate (1). The hydraulic press (42) is fixedly connected to the upper end of the hydraulic press mounting bracket (41). The pressure plate (43) is fixedly connected to the lower end of the hydraulic press (42). Multiple dovetail grooves (44) are provided at the lower end of the pressure plate (43). The threaded column (45) is fixedly connected to the upper side of the dovetail groove (44) at the front end of the pressure plate (43).
4. The strength testing device for processing luggage pull rods according to claim 3, characterized in that: The pressure detection component (4) also includes a pressure bar (46) and a nut (47). The pressure bar (46) is slidably connected to a dovetail groove (44), the pressure bar (46) is slidably connected to a threaded post (45), the nut (47) is threadedly connected to the threaded post (45), and a pressure sensor is embedded in the bottom of the pressure bar (46).
5. The strength testing device for processing luggage pull rods according to claim 2, characterized in that: It also includes a pull rod (2), the two ends of which are placed between the lower fixing clamp (36) and the upper fixing plate (37).
6. The strength testing device for processing luggage pull rods according to claim 1, characterized in that: It also includes a high-transparency protective glass plate (5) and an infrared detection device (6). The high-transparency protective glass plate (5) is fixedly connected to the upper middle part of the base plate (1), and multiple infrared detection devices (6) are fixedly connected to the lower end of the high-transparency protective glass plate (5) at the upper middle part of the base plate (1).