High-load luggage pull rod

Abstract

The utility model relates to a high load luggage draw bar, relates to luggage technical field, including base, outer tube, inner tube, handle, strengthening subassembly and telescopic subassembly, outer tube is provided on the base, inner tube is movably provided on outer tube, handle is provided on the inner tube, telescopic subassembly is provided on the inner tube, and the strengthening subassembly is provided on the telescopic subassembly. The reinforcing assembly comprises a reinforcing frame, a supporting rod and an abutting plate, the reinforcing frame is arranged on the outer pipe, the supporting rod is arranged on the reinforcing frame, the abutting plate is arranged at the end, away from the bottom plate, of the outer pipe, a connecting hole is formed in the abutting plate, and the inner pipe is arranged in the connecting hole in a sliding mode. Force can be evenly distributed on all parts, damage caused by too large local stress is avoided, the even stress distribution mode enables the pull rod to be more stable when the pull rod bears heavy objects, the pull rod can bear larger weight, the overall stability of the pull rod is enhanced, and the pull rod is not prone to deformation or damage under the high-load condition.

Description

Technical Field

[0001] This application relates to the field of luggage technology, and in particular to a high-load luggage handle. Background Technology

[0002] The luggage handle is one of the important accessories for luggage. Its main function is to provide convenience and support for the movement of luggage. The design and quality of the handle directly affect the user experience and service life of the luggage. Traditional luggage handles are mostly hollow structures. Although they are lighter, they are prone to deformation or damage under high loads, which reduces their service life.

[0003] Currently, Chinese utility model patent application CN 221769504U, published on September 27, 2024, provides a luggage pull rod, including a mounting frame, a pull rod housing, and a handle. The pull rod housing has an internal cavity. A toothed block is fixedly installed on one side wall of the pull rod housing, with the toothed blocks evenly distributed along the height of the pull rod housing. A main pull rod is installed inside the pull rod housing, with a slot at the end of the main pull rod near the pull rod housing. A pull plate is installed inside the pull rod housing, with a toothed block fixedly installed at the end of the pull plate near the bottom of the main pull rod. The toothed block engages with the slot. A pair of sliding posts are fixedly installed on one side wall of the pull plate, and a pair of arc-shaped grooves are formed on the side wall of the main pull rod near the sliding posts, allowing the sliding posts to slide back and forth within the arc-shaped grooves. This utility model, by fixing the toothed block to one side wall of the pull rod housing, allows the toothed block of the pull plate inside the main pull rod to engage with the slot between the toothed blocks. The height of the pull rod can be adjusted freely by pressing a block, thus expanding its applicability.

[0004] In related technologies, users often need to arbitrarily extend the length of luggage handles according to different usage scenarios and the amount of items carried to meet personalized needs. However, this arbitrary adjustment of the handle length can easily lead to deformation or damage under high loads. This deformation or damage not only affects the normal use of the luggage and reduces the user experience, but also significantly shortens the lifespan of the luggage.

[0005] Therefore, it is necessary to provide a load-bearing luggage handle to solve the above problems. Utility Model Content

[0006] This application provides a high-load luggage handle to improve the technical problem in related technologies where the handle is prone to deformation or damage under high loads, which affects the normal use of the luggage.

[0007] This application provides a high-load luggage handle, including a base, an outer tube, an inner tube, a handle, a reinforcing component, and a telescopic component. The outer tube is mounted on the base, the inner tube is movably mounted on the outer tube, the handle is mounted on the inner tube, and the telescopic component is mounted on the inner tube. The reinforcing component includes a reinforcing frame, a support rod, and a stop plate. The reinforcing frame is mounted on the outer tube, the support rod is mounted on the reinforcing frame, and the stop plate is mounted on the end of the outer tube away from the base plate. A connecting hole is provided on the stop plate, and the inner tube is slidably mounted in the connecting hole.

[0008] The technical solutions described above in this application embodiment have at least the following technical effects: When the user uses the luggage handle, the reinforcing frame is installed on the outer tube and the support rod is connected to the reinforcing frame. This structure can effectively distribute and bear external forces, enhance the overall stability of the handle, and make it less prone to deformation or damage under high load. The abutment plate prevents the user from squeezing their fingers when using the handle to extend or retract downwards, thus improving the user's experience.

[0009] The high-load luggage handle provided in this application embodiment can achieve uniform force distribution on various components when the handle is under stress through the design of reinforcement components, reinforcement frame and support rod, avoiding damage caused by excessive local stress. This uniform force distribution makes the handle more stable when carrying heavy objects, can withstand greater weight, enhances the overall stability of the handle, and makes it less prone to deformation or damage under high load.

[0010] In some embodiments, a reinforcing block is provided on one end of the handle near the inner tube. The reinforcing block is a right-angled trapezoid and is made of aluminum alloy.

[0011] In some embodiments, the reinforcing frame and the support rod are both made of aluminum alloy, and the abutment plate is made of glass fiber resin.

[0012] In some embodiments, the outer tube has a plurality of abutment holes.

[0013] In some embodiments, the telescopic assembly includes a button, a connecting rod, a compression spring, a stop rod, and a transmission component. One end of the compression spring is disposed on the handle, the connecting rod is disposed on the other end of the compression spring, the button is disposed on the end of the connecting rod away from the compression spring, the handle has a connecting hole, the button passes through the connecting hole and is movably disposed on the handle, the stop rod passes through the inner tube and is disposed on the connecting rod, and the transmission component is disposed on the end of the stop rod away from the connecting rod.

[0014] In some embodiments, the transmission component includes a transmission rod, a sliding box, a sliding block, a contact spring, a telescopic block, and a contact strip. The transmission rod is disposed on the end of the contact rod away from the connecting rod. The sliding box is disposed on the inner tube and has a straight sliding groove. The transmission rod slides through the straight sliding groove. The sliding block is slidably disposed inside the sliding box. The contact spring is disposed on the sliding box and its end away from the sliding box abuts against the sliding block. The sliding block has a beveled sliding groove. The telescopic block is disposed on the end of the sliding block away from the contact spring. The contact strip is disposed on the end of the transmission rod away from the contact rod and passes through the straight sliding groove and the beveled sliding groove, allowing the sliding block to slide inside the sliding box. The telescopic block slides inside the contact hole.

[0015] In some embodiments, the inner tube is provided with a plurality of reinforcing ribs. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a high-load luggage handle provided in an embodiment of this application;

[0017] Figure 2 A cross-sectional structural schematic diagram of a high-load luggage pull rod provided in an embodiment of this application;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 A cross-sectional structural schematic diagram of the transmission component provided in the embodiments of this application;

[0020] The following are the labeling elements in the figure:

[0021] 1. Base; 11. Outer tube; 111. Abutment hole; 12. Inner tube; 13. Handle; 2. Reinforcing component; 21. Reinforcing frame; 22. Support rod; 23. Reinforcing block; 24. Abutment plate; 3. Telescopic component; 31. Button; 32. Connecting rod; 33. Compression spring; 34. Abutment rod; 35. Transmission component; 351. Transmission rod; 352. Sliding box; 353. Sliding block; 354. Abutment spring; 355. Straight sliding groove; 356. Beveled sliding groove; 357. Telescopic block; 358. Abutment strip; 4. Reinforcing rib. Detailed Implementation

[0022] Based on this, in order to improve the technical problem in the related technology that the pull rod is easily deformed or damaged under high load, and such deformation or damage affects the normal use of the bag, the embodiments of this application provide the following solution.

[0023] Please refer to the following: Figures 1 to 4This application provides a high-load luggage handle, which includes a base 1, an outer tube 11, an inner tube 12, a handle 13, a reinforcing component 2, and a telescopic component 3. The outer tube 11 is mounted on the base 1, the inner tube 12 is movably mounted on the outer tube 11, the handle 13 is mounted on the inner tube 12, the telescopic component 3 is mounted on the inner tube 12, and the reinforcing component 2 is mounted on the outer tube 11.

[0024] In some embodiments, please refer to the following: Figures 1 to 2 The reinforcing component 2 includes a reinforcing frame 21, a support rod 22, and an abutment plate 24. The reinforcing frame 21 is mounted on the outer tube 11, the support rod 22 is mounted on the reinforcing frame 21, and the abutment plate is mounted on the end of the outer tube 11 away from the bottom plate. The abutment plate 24 has a connection hole, and the inner tube 12 is slidably mounted in the connection hole. A reinforcing block 23 is mounted on the end of the handle 13 near the inner tube 12. The reinforcing block 23 is a right trapezoid and is made of aluminum alloy. The reinforcing frame 21 and the support rod 22 are both made of aluminum alloy, and the abutment plate 24 is made of glass fiber resin. Multiple reinforcing ribs 4 are provided inside the inner tube 12.

[0025] With this configuration, when the user uses the luggage handle, the reinforcing frame 21 is installed on the outer tube 11, and the support rod 22 is connected to the reinforcing frame 21. This structure can effectively distribute and bear external forces, enhance the overall stability of the handle, and make it less prone to deformation or damage under high load. The abutment plate prevents the user from squeezing their fingers when using the handle 13 to extend or retract downwards, improving the user experience. By using aluminum alloy material, which has high strength, low density, and good corrosion resistance, the reinforcing frame 21 and support rod 22 serve as the main support structure of the handle. The aluminum alloy material can withstand greater tensile and compressive forces while maintaining a light weight, making it easy to carry. The reinforcing block 23 is located at the end of the handle 13 near the inner tube 12. Its right-angled trapezoidal shape can better distribute the force, preventing the handle 13 from deforming or being damaged under stress. The reinforcing ribs 4 inside the inner tube 12 can further enhance the bending and torsional resistance of the inner tube 12. Under high load conditions, the inner tube 12 needs to withstand large longitudinal and lateral forces. The reinforcing ribs 4 can effectively prevent the inner tube 12 from deforming or bending, ensuring the stability and reliability of the pull rod. Fiberglass resin is a high-strength, high-modulus composite material with good wear resistance and impact resistance. The abutment plate 24 serves as the sliding contact surface of the inner tube 12. The fiberglass resin material can reduce wear between the inner tube 12 and the abutment plate 24, extending its service life. At the same time, its high modulus characteristics can ensure that the abutment plate 24 maintains its shape under stress, providing stable sliding support for the inner tube 12.

[0026] In some embodiments, please refer to the following: Figures 3 to 4The outer tube 11 has multiple abutment holes 111. The telescopic assembly 3 includes a button 31, a connecting rod 32, a compression spring 33, an abutment rod 34, and a transmission component 35. One end of the compression spring 33 is mounted on the handle 13, and the connecting rod 32 is mounted on the other end of the compression spring 33. The button 31 is mounted on the end of the connecting rod 32 away from the compression spring 33. The handle 13 has a connecting hole through which the button 31 passes and is movably mounted on the handle 13. The abutment rod 34 passes through the inner tube 12 and is mounted on the connecting rod 32. The transmission component 35 is mounted on the end of the abutment rod 34 away from the connecting rod 32. The transmission component 35 includes a transmission rod 351, a sliding box 352, a sliding block 353, an abutment spring 354, a telescopic block 357, and an abutment strip 358. The transmission rod 351 is mounted on the end of the abutment rod 34 away from the connecting rod 32. At one end of the connecting rod 32, a sliding box 352 is mounted on the inner tube 12. A straight sliding groove 355 is provided on the sliding box 352. The transmission rod 351 slides through the straight sliding groove 355. A sliding block 353 is slidably mounted inside the sliding box 352. An abutment spring is mounted on the sliding box 352. The end of the abutment spring 354 away from the sliding box 352 abuts against the sliding block 353. A beveled sliding groove 356 is provided on the sliding block 353. A telescopic block 357 is mounted on the end of the sliding block 353 away from the abutment spring 354. An abutment strip 358 is mounted on the end of the transmission rod 351 away from the abutment rod 34. The abutment strip 358 passes through the straight sliding groove 355 and the beveled sliding groove 356, so that the sliding block 353 slides inside the sliding box 352 and the telescopic block 357 slides inside the abutment hole 111.

[0027] With this configuration, during the extension and retraction of the telescopic component 3, pressing button 31 causes it to abut against connecting rod 32. Connecting rod 32 compresses spring 33, causing it to deform downwards. Abutting rod 34 on connecting rod 32 slides downwards, pressing against transmission component 35. Transmission rod 351 drives abutting strip 358 through linear sliding groove 355, pressing downwards. Sliding block 353 slides into sliding box 352 through inclined sliding groove 356, compressing abutting spring 354. This causes telescopic block 357 to slide out of abutting hole 111. Handle 13 drives inner tube 12 to slide up and down on outer tube 11. When it reaches the appropriate position, abutting spring 354 pushes sliding block 353 outwards, causing telescopic block 357 to abut in abutting hole 111, fixing the positional relationship between outer tube 11 and inner tube 12. Thus, through the coordinated operation of a series of components, including the button 31, connecting rod 32, compression spring 33, transmission component 35, abutting strip 358, sliding block 353, inclined sliding groove 356, abutting spring 354, and telescopic block 357, multi-level locking of the inner tube 12 within the outer tube 11 is achieved. This design allows the pull rod to extend and retract at multiple fixed positions, enabling users to precisely adjust the length of the pull rod according to their height and usage habits, ensuring comfort and convenience during use. The design of the telescopic component 3 makes the sliding of the inner tube 12 within the outer tube 11 smoother, preventing shaking or jamming. This not only improves the user experience but also effectively reduces... To minimize wear and tear on components due to poor extension and retraction, the dual design of the compression spring 33 and the abutment spring 354 ensures that the telescopic block 357 is securely locked within the abutment hole 111. When the user adjusts it to the appropriate position, the abutment spring 354 automatically pushes the sliding block 353 outward, causing the telescopic block 357 to abut within the abutment hole 111, thereby fixing the positional relationship between the outer tube 11 and the inner tube 12. This design not only improves the reliability of locking but also maintains good locking performance after multiple uses. Precise extension and retraction control and reliable locking performance make it easier and more comfortable for users to pull luggage, reducing fatigue caused by unstable or poorly extended handles.

[0028] The implementation principle of a high-load luggage handle according to an embodiment of this application is as follows: During the use of the luggage handle, the reinforcing frame 21 is installed on the outer tube 11, and the support rod 22 is connected to the reinforcing frame 21. This structure can effectively distribute and bear external forces, enhance the overall stability of the handle, and make it less prone to deformation or damage under high load. The abutment plate prevents the user from squeezing their fingers when using the handle 13 to extend or retract downwards, improving the user experience. By using aluminum alloy material, which has high strength, low density and good corrosion resistance, the reinforcing frame 21 and the support rod 22 serve as the main support structure of the handle. The aluminum alloy material can withstand greater tensile and compressive forces while maintaining a lighter weight, making it easy to carry. The reinforcing block 23 is located at the end of the handle 13 near the inner tube 12. Its right-angled trapezoidal shape can better distribute the force and prevent the handle 13 from deforming or being damaged under force. The reinforcing rib 4 inside the inner tube 12 can further enhance the bending and torsional resistance of the inner tube 12. Under high load conditions, the inner tube 12 needs to withstand large longitudinal and lateral forces. The reinforcing rib 4 can effectively prevent the inner tube 12 from deforming or bending, ensuring the stability and reliability of the pull rod. The glass fiber resin material can reduce the wear between the inner tube 12 and the abutment plate 24 and extend its service life. At the same time, during the extension and retraction of the telescopic component 3, pressing the button 31 abuts the connecting plate 24. The connecting rod 32 compresses the spring 33 downwards, causing the abutment rod 34 on the connecting rod 32 to slide downwards and press against the transmission component 35. The transmission rod 351 drives the abutment strip 358 through the straight sliding groove 355 and presses downwards. The sliding block 353 slides into the sliding box 352 through the inclined sliding groove 356, compressing the abutment spring 354 and causing the telescopic block 357 to slide out into the abutment hole 111. The handle 13 drives the inner tube 12 to slide up and down on the outer tube 11. When it slides to the appropriate position, the abutment spring 354 pushes the sliding block 353 outwards, causing the telescopic block 357 to abut in the abutment hole 111, fixing the positional relationship between the outer tube 11 and the inner tube 12.

[0029] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high load luggage puller, characterized by: The utility model provides a telescopic handle, including base (1), outer tube (11), inner tube (12), handle (13), reinforcing assembly (2) and telescopic assembly (3), outer tube (11) sets up on base (1), inner tube (12) sets up on outer tube (11) movably, handle (13) sets up on inner tube (12), telescopic assembly (3) sets up on inner tube (12), reinforcing assembly (2) includes reinforcing frame (21), support rod (22) and abutment plate (24), reinforcing frame (21) sets up on outer tube (11), support rod (22) sets up on reinforcing frame (21), abutment plate (24) sets up on the one end of outer tube (11) away from base plate, is set up with connecting hole on abutment plate (24), inner tube (12) is slidably arranged in connecting hole.

2. The high load luggage rod of claim 1, wherein: The handle (13) is provided with a reinforcing block (23) on one end close to the inner tube (12), the reinforcing block (23) is a right trapezoid, and the reinforcing block (23) is made of aluminum alloy material.

3. The high load luggage rod of claim 2, wherein: The reinforcing frame (21) and the support rod (22) are both made of aluminum alloy material, and the abutment plate (24) is made of glass fiber resin material.

4. The high load luggage rod of claim 3, wherein: A plurality of abutment holes (111) are formed in the outer tube (11).

5. The high load luggage rod of claim 4, wherein: The telescopic assembly (3) includes a button (31), a connecting rod (32), a compression spring (33), an abutment rod (34), and a transmission member (35). One end of the compression spring (33) is arranged on the handle (13). The connecting rod (32) is arranged on the other end of the compression spring (33). The button (31) is arranged on one end of the connecting rod (32) away from the compression spring (33). A connecting hole is formed in the handle (13), and the button (31) passes through the connecting hole and is movably arranged on the handle (13). The abutment rod (34) passes through the inner tube (12) and is arranged on the connecting rod (32). The transmission member (35) is arranged on one end of the abutment rod (34) away from the connecting rod (32).

6. A high load luggage rod as claimed in claim 5, characterized in that: The transmission member (35) comprises a transmission rod (351), a sliding box (352), a sliding block (353), an abutting spring (354), an expansion block (357) and an abutting strip (358), the transmission rod (351) is arranged on one end of the abutting rod (34) away from the connecting rod (32), the sliding box (352) is arranged on the inner tube (12), a linear sliding groove (355) is arranged on the sliding box (352), the transmission rod (351) is slidably arranged on the linear sliding groove (355), the sliding block (353) is slidably arranged in the sliding box (352), the abutting spring (354) is arranged on the sliding box (352), one end of the abutting spring (354) away from the sliding box (352) is abutted on the sliding block (353), an oblique edge sliding groove (356) is arranged on the sliding block (353), the expansion block (357) is arranged on one end of the sliding block (353) away from the abutting spring (354), the abutting strip (358) is arranged on one end of the transmission rod (351) away from the abutting rod (34), the abutting strip (358) passes through the linear sliding groove (355) and the oblique edge sliding groove (356), so that the sliding block (353) slides in the sliding box (352), and the expansion block (357) slides in the abutting hole (111).

7. A high load luggage rod as claimed in claim 6, characterized in that: A plurality of reinforcing ribs (4) are arranged in the inner tube (12).

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