Draw-bar box draw bar with waterproof and antirust functions

Abstract

The utility model discloses a draw-bar box draw bar with waterproof and antirust functions, which comprises a sleeve, the inner side surface of the sleeve is in sliding connection with a telescopic rod, the lower end surface of the telescopic rod is provided with a convex shell, and the inner side surface of the lower end of the sleeve is provided with a first sliding chute; a first spring and a first clamping block are slidably connected to the inner side surface of a first sliding groove of a sleeve, the first clamping block is clamped to the inner side surface of a protruding shell, a second sliding groove is formed in the upper end of the sleeve, a second spring and a second clamping block are slidably connected into the second sliding groove, and a handle is fixed to the upper surface of a telescopic rod. A sliding fit clamping connection type positioning structure is adopted, a pressing type extrusion structure is arranged in the telescopic rod, the clamping block can be conveniently controlled to contract, sliding fit telescopic positioning is facilitated, the structure is simple, a hard supporting structure is adopted, control is convenient, the structure is stable, a sealing structure is arranged at the pressing block, a sealing structure is arranged at the sliding position of the telescopic rod, and sealing can be conducted at a sliding gap; rusting caused by water inflow is avoided.

Description

Technical Field

[0001] This utility model relates to the field of waterproof and rustproof luggage handles, and more specifically, to a waterproof and rustproof luggage handle. Background Technology

[0002] A rolling suitcase is a type of luggage equipped with a pull handle and wheels. It is widely used due to its convenience. Rolling suitcases are further categorized by the pull handle: single-tube and double-tube handles are available. The handle tubes also come in square and round shapes to facilitate dragging while walking, greatly reducing the burden. Rolling suitcases can be carried by hand or pulled. The wheels of most rolling suitcases are located at the bottom, but modern designs have created a new type of rolling suitcase with a cylindrical shape and wheels entirely encased on the outside. This roller design allows the rolling suitcase to better adapt to different terrains; for example, it can be easily pulled up and down stairs.

[0003] According to the prior art, based on the authorization announcement number CN221204371U, this utility model relates to the field of luggage handle technology, specifically to an easily adjustable luggage handle. Its features include a lower handle, an upper handle, and an adjustment device. The upper handle is adjustablely located inside the lower handle. The adjustment device is located inside the upper handle and includes an adjustment rod and a limiting block. The upper handle has a cavity inside, and through grooves are provided on both sides of its lower end. The lower handle has a limiting groove on its inner sidewall. The adjustment rod is located within the cavity, and the limiting block is located within the through groove, with one end of the limiting block positioned within the limiting groove. This easily adjustable luggage handle, through the positioning of the adjustment device, avoids exposing the adjustment device to the outside of the suitcase, preventing injury to the user from bumping into it. When the suitcase needs to be laid flat, the back of the suitcase can be placed face down without damaging the adjustment device, thus extending its lifespan.

[0004] In the aforementioned patent, a structure such as a pull rope is used to control the locking and sliding. The control structure is complex and unstable when opening and closing. Furthermore, the telescopic rod does not have a waterproof structure, and rainwater can easily enter through the sliding gaps, which can easily corrode the rod assembly from the inside, resulting in a short service life. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a waterproof and rustproof luggage handle. By adopting a sliding snap-fit ​​positioning structure and setting a pressing and squeezing structure inside the telescopic rod, the retraction of the snap-fit ​​block can be easily controlled, facilitating sliding telescopic positioning. The structure is simple, with a rigid support structure, convenient control, and structural stability. A sealing structure is set at the pressing block and at the sliding part of the telescopic rod to seal the sliding gaps and prevent water ingress and rust.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A waterproof and rustproof suitcase handle includes a sleeve. A telescopic rod is slidably connected to the inner surface of the sleeve. A protruding shell is provided on the lower end surface of the telescopic rod. A first groove is provided on the inner surface of the lower end of the sleeve. A first spring and a first locking block are slidably connected to the inner surface of the first groove of the sleeve. The first locking block is engaged with the inner surface of the protruding shell. A second groove is provided at the upper end of the sleeve. A second spring and a second locking block are slidably connected in the second groove. A handle is fixed to the upper surface of the telescopic rod. An arched strip is slidably connected to the inner surface of the handle. A lower surface of the arched strip is provided with... The device includes a pressing block, a pressing block fixed to the upper outer surface of the arched strip, a silicone film covering the surface of the handle, a rubber sealing ring fixedly connected to the upper inner surface of the sleeve, and the inner surface of the telescopic rod slidably connected to the inner surface of the rubber sealing ring. By adopting a sliding snap-fit ​​positioning structure and setting a pressing and squeezing structure inside the telescopic rod, the retraction of the snap-fit ​​block can be easily controlled, facilitating sliding telescopic positioning. The structure is simple, has a rigid support structure, is easy to control, and is stable. A sealing structure is set at the pressing block and at the sliding part of the telescopic rod to seal the sliding gaps and prevent water ingress and rust.

[0008] Furthermore, the rubber sealing ring adopts a convex rubber ring structure, and a bulge is provided at the outer end of the rubber sealing ring, which is snapped onto the inner surface of the sleeve.

[0009] Furthermore, the outer surface of the protruding shell slides against the inner surface of the sleeve, and a snap-fit ​​hole is provided on one side surface of the protruding shell, with the outer surface of the first snap-fit ​​block snapping into the inner surface of the snap-fit ​​hole of the protruding shell.

[0010] Furthermore, a third spring is fixedly connected to the inner surface of the handle, and the upper surface of the third spring is fixedly connected to the inner surface of the pressing block.

[0011] Furthermore, the upper surface of the handle is provided with a sliding opening, and the outer surface of the pressing block is slidably connected to the inner surface of the sliding opening of the handle.

[0012] Furthermore, a support member is fixedly connected to the outer surface of the sleeve.

[0013] Furthermore, the sleeve and telescopic rod are made of aluminum alloy, with an anti-corrosion paint coating on their outer surface, and the arched strip is made of stainless steel.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) By adopting a sliding snap-fit ​​positioning structure and setting a pressing extrusion structure inside the telescopic rod, it is easy to control the shrinkage of the snap-fit ​​block, facilitates the sliding telescopic positioning, and has a simple structure, a rigid support structure, convenient control, and a stable structure. A sealing structure is set at the pressing block and at the sliding part of the telescopic rod, which can seal the sliding gap and prevent water from entering and rusting. Attached Figure Description

[0016] Figure 1 This is a first schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a second schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model;

[0019] Figure 4 This is an enlarged view of point A in this utility model;

[0020] Figure 5 This is a schematic diagram showing the distribution relationship between the arched strip and the pressing block of this utility model;

[0021] Figure 6 This is a partial structural diagram of the rubber sealing ring of this utility model.

[0022] Explanation of the labels in the diagram:

[0023] 1. Sleeve, 2. Telescopic rod, 3. Protruding shell, 4. First spring, 5. First locking block, 6. Second spring, 7. Second locking block, 8. Handle, 9. Arched strip, 10. Extrusion block, 11. Pressing block, 12. Silicone film, 13. Third spring, 14. Rubber sealing ring, 15. Support component. Detailed Implementation

[0024] 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.

[0025] Example 1: Please refer to Figure 1-6A waterproof and rustproof trolley handle includes a sleeve 1. A telescopic rod 2 is slidably connected to the inner surface of the sleeve 1. A protruding shell 3 is provided on the lower end surface of the telescopic rod 2. A first groove is provided on the inner surface of the lower end of the sleeve 1. A first spring 4 and a first locking block 5 are slidably connected to the inner surface of the first groove of the sleeve 1. The first locking block 5 is engaged with the inner surface of the protruding shell 3. A second groove is provided at the upper end of the sleeve 1. A second spring 6 and a second locking block 7 are slidably connected in the second groove. A handle 8 is fixed to the upper surface of the telescopic rod 2. An arched strip 9 is slidably connected to the inner surface of the handle 8. A lower surface of the arched strip 9 is provided with... The upper outer surface of the extrusion block 10 and the arched strip 9 is fixed with a pressing block 11. The surface of the handle 8 is covered with a silicone film 12. The upper inner surface of the sleeve 1 is fixedly connected with a rubber sealing ring 14. The inner surface of the telescopic rod 2 is slidably connected to the inner surface of the rubber sealing ring 14. By adopting a sliding snap-fit ​​positioning structure and setting a pressing extrusion structure inside the telescopic rod, it is easy to control the shrinkage of the snap-fit ​​block and facilitate sliding telescopic positioning. The structure is simple, has a rigid support structure, is easy to control, and is stable. A sealing structure is set at the pressing block and at the sliding part of the telescopic rod to seal the sliding gap and prevent water ingress and rust.

[0026] The rubber sealing ring 14 adopts a convex rubber ring structure. The outer end of the rubber sealing ring 14 is provided with a bulge joint, which is snapped onto the inner surface of the sleeve 1. This facilitates the internal installation of the rubber sealing ring 14. The telescopic rod 2 can fit against the rubber sealing ring 14 for sealing. It can fit and seal during sliding and telescopic movement to prevent rainwater from entering through gaps.

[0027] The outer surface of the protruding shell 3 slides against the inner surface of the sleeve 1, and a snap-fit ​​hole is provided on one side surface of the protruding shell 3. The outer surface of the first snap-fit ​​block 5 snaps into the inner surface of the snap-fit ​​hole of the protruding shell 3, which facilitates the snap-fit ​​block to be snapped into the protruding shell 3 for positioning.

[0028] A third spring 13 is fixedly connected to the inner surface of the handle 8, and the upper surface of the third spring 13 is fixedly connected to the inner surface of the pressing block 11. After pressing the pressing block 11 downward, the pressing block 11 can be squeezed upward by the third spring 13, which can drive the pressing block 10 and the arched strip 9 to rise and reset.

[0029] The upper surface of the handle 8 is provided with a sliding opening, and the outer surface of the pressing block 11 is slidably connected to the inner surface of the sliding opening of the handle 8; it can slide inside the handle 8, and the pressing block 11 can slide and press at the sliding opening;

[0030] The outer surface of the sleeve 1 is fixedly connected to the support member 15, which can support the sleeve 1 on both sides. The sleeve 1 and the telescopic rod 2 are made of aluminum alloy and their outer surface is sprayed with anti-corrosion paint for external anti-corrosion. The arched strip 9 is made of stainless steel and will not rust.

[0031] In use, a telescopic rod 2 is slidably connected to the inner surface of the sleeve 1. A protruding shell 3 is provided on the lower end surface of the telescopic rod 2. A first sliding groove is provided on the lower inner surface of the sleeve 1. A first spring 4 and a first locking block 5 are slidably connected to the inner surface of the first sliding groove of the sleeve 1. The first locking block 5 is locked onto the inner surface of the protruding shell 3. An arched strip 9 is slidably connected to the inner surface of the handle 8. A pressing block 10 is provided on the lower surface of the arched strip 9. A pressing block 11 is fixed on the upper outer surface of the arched strip 9. In use, the pressing block 11 can be pressed down, which can squeeze the arched strip 9 down, which can drive the pressing block 10 to squeeze the first locking block 5 down, which can squeeze the first locking block 5 to slide outward. After sliding away from the protruding shell 3, the telescopic rod 2 can be pulled up. When it reaches the upper second locking block 7, it is fastened and fixed. It can be extended and positioned, is easy to use and control, has a rigid control structure, is not easy to be damaged, and has a stable structure.

[0032] The upper outer surface of the arched strip 9 is fixed with a pressing block 11, and the surface of the handle 8 is covered with a silicone film 12, which can cover the pressing block 11 to seal it and prevent water from entering. The upper inner surface of the sleeve 1 is fixedly connected with a rubber sealing ring 14, and the inner surface of the telescopic rod 2 is slidably connected to the inner surface of the rubber sealing ring 14; it can seal the gaps and provide waterproof sealing.

[0033] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A waterproof and rust-proof function of the pull rod box pull rod, comprising a sleeve (1), characterized by: The inner side surface of the sleeve (1) is slidingly connected with a telescopic rod (2), the lower end surface of the telescopic rod (2) is provided with a convex shell (3), the lower end inner side surface of the sleeve (1) is provided with a first sliding groove, the inner side surface of the first sliding groove of the sleeve (1) is slidingly connected with a first spring (4) and a first clamping block (5), the first clamping block (5) is clamped on the inner side surface of the convex shell (3), the upper end of the sleeve (1) is provided with a second sliding groove, the second sliding groove is slidingly connected with a second spring (6) and a second clamping block (7), the upper surface of the telescopic rod (2) is fixedly connected with a handle (8), the inner side surface of the handle (8) is slidingly connected with an arcuate strip (9), the lower surface of the arcuate strip (9) is provided with a pressing block (10), the upper end outer surface of the arcuate strip (9) is fixedly connected with a pressing block (11), the surface of the handle (8) is covered with a silica gel film (12), the upper end inner side surface of the sleeve (1) is fixedly connected with a rubber sealing ring (14), and the inner side surface of the telescopic rod (2) is slidingly connected with the inner side surface of the rubber sealing ring (14).

2. The waterproof and anti-rust functional trolley rod of the trolley case according to claim 1, characterized in that: The rubber sealing ring (14) adopts a convex rubber ring structure, the outer end of the rubber sealing ring (14) is provided with a bulge, and the bulge is clamped on the inner side surface of the sleeve (1).

3. The waterproof and anti-rust functional trolley rod of the trolley case according to claim 1, characterized in that: The outer surface of the convex shell (3) is slidingly attached to the inner side surface of the sleeve (1), and one side surface of the convex shell (3) is provided with a clamping hole, and the outer surface of the first clamping block (5) is clamped on the inner side surface of the clamping hole of the convex shell (3).

4. The waterproof and anti-rust functional trolley rod of the trolley case according to claim 1, characterized in that: The inner side surface of the handle (8) is fixedly connected with a third spring (13), and the upper surface of the third spring (13) is fixedly connected to the inner side surface of the pressing block (11).

5. The waterproof and anti-rust functional trolley rod of the trolley case according to claim 1, characterized in that: The upper surface of the handle (8) is provided with a sliding port, and the outer surface of the pressing block (11) is slidingly connected to the inner side surface of the sliding port of the handle (8).

6. The waterproof and anti-rust functional trolley rod of the trolley case according to claim 1, characterized in that: The outer surface of the sleeve (1) is fixedly connected with a support (15).

7. The waterproof and anti-rust functional trolley rod of the trolley case according to claim 1, characterized in that: The sleeve (1) and the telescopic rod (2) are made of aluminum alloy material, the outer surface is sprayed with anti-corrosion paint, and the arcuate strip (9) is made of stainless steel strip material.

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