Automatic reset luggage pull rod

Abstract

The utility model relates to the technical field of luggage pull rods, in particular to an automatic reset luggage pull rod. According to the technical scheme, a second box body is rotationally installed on a first box body through hinges, a handle is installed at the top end of the second box body, a pull rod is installed on the outer surface of the first box body, a bottom plate is arranged in the first box body, the pull rod is located between the bottom plate and the first box body, and a second sleeve is arranged on the pull rod; a first casing pipe is inserted into the second casing pipe, a rod body is inserted into the first casing pipe, a nut seat is installed on the back face of the first box body, a locking pin is installed on the first box body through the nut seat, and the locking pin penetrates through the second casing pipe to make contact with the first casing pipe. Through the design of the height-adjustable pull rod, the locking pin and the bottom plate are matched to lock the height and support the user-defined height, the problem that the reset height of the pull rod in an existing device is fixed is effectively solved, and the comfort level and the use experience of a user are improved.

Description

Technical Field

[0001] This utility model relates to the field of luggage handle technology, specifically to an automatic reset luggage handle. Background Technology

[0002] Roller suitcases are essential for travel. Roller suitcases make our travels easier. The main body of a roller suitcase is made of high-quality aluminum alloy profiles. Aluminum alloy profiles have the characteristics of sturdy structure, beautiful appearance and good heat dissipation. This type of profile is widely used in various suitcases.

[0003] A search revealed that patent CN202220935030.1 discloses an automatically resetting luggage handle. While this device utilizes a rolling component on the outside of a convex slide rod to minimize sliding friction and incorporates a counterweight, allowing for convenient use—simply pull up and release the handle to retract—its most significant drawback is the fixed resetting height. This fixed height limits user comfort and experience. Users of different heights and builds may require different handle heights to ensure optimal dragging posture and comfort. The inability to adjust the handle height based on user height, usage habits, or environmental needs results in unsuitable heights in certain situations, causing inconvenience or discomfort. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatically resetting luggage handle, solving the problems mentioned in the background art.

[0005] The solution of this utility model to the above-mentioned technical problems is as follows:

[0006] An automatically resetting luggage handle includes a first case, a second case that is rotatably mounted on the first case via a hinge, a handle that is mounted on the top of the second case, and a handle that is mounted on the outer surface of the first case.

[0007] The first housing has a bottom plate, the pull rod is located between the bottom plate and the first housing, the pull rod has a second sleeve, the second sleeve is inserted into the first sleeve, the first sleeve is inserted into the rod body, the back of the first housing is equipped with a nut seat, and a locking pin is installed on the first housing through the nut seat, and the locking pin passes through the second sleeve and contacts the first sleeve.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the first box is equipped with a fixing strap to limit and fix the items inside the first box.

[0010] The beneficial effects of adopting the above-mentioned further solutions are:

[0011] The securing straps effectively hold items inside the bag in place, preventing them from sliding, rolling, or colliding when the bag is moved or tilted. This helps protect items from damage, especially for fragile, delicate, or irregularly shaped items, providing essential support and stability. By strategically arranging the straps, users can adjust them according to the size and shape of the items, maximizing the use of space within the bag. This not only reduces unnecessary space waste but also ensures a more even distribution of items inside, further improving the overall stability and load-bearing capacity of the bag.

[0012] Furthermore, a pulley is rotatably mounted on the bottom end of the first housing.

[0013] The beneficial effects of adopting the above-mentioned further solutions are:

[0014] The design of the casters allows the container to glide easily on the ground, greatly reducing the need for manual labor, whether for horizontal movement or short-distance dragging. Users don't need to lift or carry the container laboriously; a simple push or pull is all it takes to move it, improving ease of use. The relatively small contact area between the casters and the ground, and their typically wear-resistant material construction, significantly reduces friction between the container and the floor. This helps extend the container's lifespan while minimizing noise and vibration caused by friction.

[0015] Furthermore, the second box is provided with a latch at the end opposite to the first box, and the first box and the second box are locked and fixed by the latch after being closed.

[0016] The beneficial effects of adopting the above-mentioned further solutions are:

[0017] The locking design ensures that the first and second compartments are securely connected when closed, effectively preventing accidental opening or loss of items. This securing method provides extra security, especially during travel or transportation, ensuring the safety and integrity of the contents. The locking mechanism tightly connects the two compartments, forming a more stable structure. This helps reduce swaying and tilting during movement or placement, thus improving overall stability.

[0018] Furthermore, the position of the locking pin corresponds to the position of the first sleeve, and the first sleeve is locked and fixed by the cooperation of the locking pin and the base plate.

[0019] The beneficial effects of adopting the above-mentioned further solutions are:

[0020] The locking pin corresponds to the position of the first sleeve, ensuring that the first sleeve is securely locked in the desired position after the pull rod height is adjusted. This design prevents the pull rod from accidentally sliding or adjusting due to external forces during use, thus maintaining the stability of height adjustment. The cooperation between the locking pin and the base plate provides additional support and fixing force to the first sleeve. This helps to enhance the overall structural strength of the luggage pull rod, improving the durability and load-bearing capacity of the luggage.

[0021] Furthermore, the top of the first housing is provided with a protective cover, and the protective cover is provided with a limiting sleeve. The second sleeve is installed in the first housing through the limiting sleeve.

[0022] The beneficial effects of adopting the above-mentioned further solutions are:

[0023] By installing a protective cover on the top of the first enclosure, the interior of the enclosure can be effectively protected from direct environmental influences such as rain and dust. The design of the limiting sleeve ensures precise positioning of the second sleeve during installation, preventing structural loosening or damage due to improper installation. This structure enhances the overall stability of the enclosure, making it more robust and durable under external forces. The limiting sleeve not only serves a positioning function but also acts as a guide for the second sleeve, simplifying the installation process. Users can easily install the second sleeve into the first enclosure using the limiting sleeve, without complicated operations or tools. This design improves the convenience and efficiency of installation while reducing installation costs.

[0024] This utility model provides an automatically resetting luggage handle. It has the following advantages:

[0025] The wheels mounted on the bottom of the first compartment allow the bag to slide easily on various surfaces, greatly reducing the burden of carrying heavy items and improving the convenience of travel.

[0026] The second compartment, mounted via hinges, combines with the first compartment to create an expandable storage space to meet various travel needs. The locking mechanism ensures the bag's secure closure, preventing items from being lost or damaged during transport.

[0027] The handle at the top of the second case provides users with an additional carrying option, while the pull rod on the outer surface of the first case makes dragging easier. This design caters to the carrying habits and preferences of different users.

[0028] By adjusting the position of the first sleeve within the second sleeve, users can set the preset height of the pull rod according to their own height or preferences, improving user comfort. When the user releases the pull rod, the rod automatically retracts into the first sleeve due to gravity, eliminating the need for manual folding, simplifying the operation, and preventing the pull rod from occupying extra space or causing inconvenience when not in use. The locking pin, passing through the second sleeve and contacting the first sleeve, cooperates with the base plate to lock and fix the adjusted height, ensuring the stability of the pull rod at the set height and preventing accidental slippage or adjustment.

[0029] The internal structural design, including the base plate, protective cover, and retaining sleeve, not only enhances the sturdiness and durability of the bag, but also ensures smooth and accurate movement of the pull rod through the guide installation of the retaining sleeve. The addition of securing straps further improves the safety and stability of the items inside, preventing collisions or damage during movement. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0031] In the attached diagram:

[0032] Figure 1 This is a side view of the present invention.

[0033] Figure 2 This is a schematic diagram of the main appearance of the present utility model;

[0034] Figure 3 This is a rear view schematic diagram of the present utility model;

[0035] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1. First housing; 101. Fixing strap; 102. Pulley; 103. Nut seat; 104. Locking pin; 105. Protective cover; 106. Limiting sleeve; 107. Base plate; 2. Pull rod; 201. Rod body; 202. First sleeve; 203. Second sleeve; 3. Second housing; 301. Handle; 302. Lock. Detailed Implementation

[0038] 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.

[0039] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows:

[0040] Example 1: An automatically resetting luggage handle includes a first case 1. The first case 1 has a fixing strap 101 inside, which limits and fixes the items inside the first case 1. The fixing strap 101 is precisely designed to effectively and firmly secure the items inside the case, preventing slippage, rolling, or collisions during luggage movement or tilting. This design is particularly important for protecting fragile, easily damaged, or irregularly shaped items, providing necessary support and stability. By rationally arranging the fixing straps 101, users can flexibly adjust them according to the size and shape of the items, maximizing the use of the luggage's internal space, reducing space waste, and ensuring even distribution of items, thereby further improving the overall stability and load-bearing capacity of the luggage. A pulley 102 is rotatably installed at the bottom of the first case 1. The pulley 102 design allows the case to easily slide on the ground, greatly reducing the need for manual labor, whether for horizontal movement or short-distance dragging. Users do not need to lift or carry the case laboriously; a gentle push or pull is all it takes to move it easily, significantly improving ease of use. The pulley 102 is made of wear-resistant material and has a small contact area, effectively reducing friction between the box and the ground, extending the service life of the box, and reducing noise and vibration caused by friction. A second box 3 is mounted on the first box 1 via a hinge. A latch 302 is located at the end of the second box 3 opposite to the first box 1. After the first box 1 and the second box 3 are closed, they are locked in place by the latch 302. The latch 302 design ensures a secure connection between the first box 1 and the second box 3 after closure, effectively preventing accidental opening of the box and loss of items. This fixing method provides additional security, especially during travel or transportation, ensuring the safety and integrity of the items inside the box. The latch 302 tightly connects the two boxes, forming a more stable structure, reducing swaying and tilting during movement or placement, and improving overall stability. A handle 301 is installed at the top of the second box 3, and a pull rod 2 is installed on the outer surface of the first box 1.

[0041] Example 2: To facilitate adjustment of the preset height of the pull rod 2, for example, as follows: Figures 1 to 4As shown, the present invention further includes: a base plate 107 inside the first housing 1; a pull rod 2 located between the base plate 107 and the first housing 1; a second sleeve 203 on the pull rod 2; a protective cover 105 at the top of the first housing 1; a limiting sleeve 106 on the protective cover 105; and the second sleeve 203 guided and installed inside the first housing 1 by the limiting sleeve 106. By setting the protective cover 105 at the top of the first housing 1, the direct influence of the external environment on the interior of the housing, such as rainwater and dust, can be effectively isolated. The design of the limiting sleeve 106 enables the second sleeve 203 to be precisely positioned during installation, avoiding structural loosening or damage due to improper installation. This design enhances the overall stability of the housing, making it more robust and durable when subjected to external forces. The limiting sleeve 106 not only serves a positioning function but also acts as a guide device for the second sleeve 203, simplifying the installation process, improving installation convenience and efficiency, and reducing installation costs. The first sleeve 202 is inserted into the second sleeve 203. Adjusting the height of the first sleeve 202 adjusts the preset height of the pull rod 2. A rod 201 is inserted into the first sleeve 202. When the user releases the pull rod 2, the rod 201 automatically retracts into the first sleeve 202 under gravity, thus achieving an automatic reset effect. The back of the first housing 1... A nut seat 103 is installed on the first housing 1, and a locking pin 104 is installed on the first housing 1 via the nut seat 103. The locking pin 104 passes through the second sleeve 203 and contacts the first sleeve 202. The position of the locking pin 104 corresponds to the position of the first sleeve 202. The locking pin 104 and the base plate 107 cooperate to lock and fix the first sleeve 202 after the height is adjusted. The precise correspondence between the locking pin 104 and the first sleeve 202 ensures that the first sleeve 202 is firmly locked in the desired position after the height of the pull rod 2 is adjusted. This design prevents the pull rod 2 from accidentally sliding or adjusting due to external forces during use, maintaining the stability of height adjustment. The cooperation between the locking pin 104 and the base plate 107 provides additional support and fixing force for the first sleeve 202, enhancing the overall structural strength of the luggage pull rod 2 and improving the durability and load-bearing capacity of the luggage.

[0042] Working principle:

[0043] The pull rod 2 mainly consists of a rod body 201, a first sleeve 202, and a second sleeve 203, which are connected by a plug-in connection, allowing them to slide against each other. The first sleeve 202 is plugged into the second sleeve 203, while the rod body 201 is plugged into the first sleeve 202.

[0044] Users can adjust the overall height of the pull rod 2 by pulling or pushing the first sleeve 202 to slide it within the second sleeve 203. When the height is adjusted to a suitable level, the user can lock the first sleeve 202 in its current position within the second sleeve 203 using a locking mechanism (such as a locking pin 104) to maintain the stability of the pull rod 2's height.

[0045] The locking pin 104 is mounted on the first housing 1 via the nut seat 103, and its position corresponds to the first sleeve 202. When the user wants to lock the height of the pull rod 2, the locking pin 104 can be operated to make it contact the first sleeve 202 and generate friction or clamping force, thereby preventing the first sleeve 202 from sliding relative to the second sleeve 203.

[0046] The rod 201 automatically retracts into the first sleeve 202 under the action of gravity, which is the core of the automatic reset mechanism. When the user releases the lever 2, the rod 201 will slide down along the inner wall of the first sleeve 202 under the action of gravity until it is completely retracted into the first sleeve 202.

[0047] The fit clearances between the second sleeve 203 and the first sleeve 202, as well as between the rod 201 and the first sleeve 202, have been carefully designed to ensure that the rod 201 can slide smoothly and automatically reset. At the same time, these clearances also ensure that the rod 201 will not accidentally slip out or loosen due to external forces during the use of the lever 2.

[0048] During the automatic reset process, when the user needs to use lever 2 again, simply pull lever 201 upwards. At this time, locking pin 104 remains unlocked until the user adjusts the height and locks it again.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatically resetting luggage handle, comprising a first case (1), a second case (3) rotatably mounted on the first case (1) via a hinge, a handle (301) mounted on the top of the second case (3), and a handle (2) mounted on the outer surface of the first case (1), characterized in that: The first housing (1) is provided with a bottom plate (107). The pull rod (2) is located between the bottom plate (107) and the first housing (1). The pull rod (2) is provided with a second sleeve (203). A first sleeve (202) is inserted into the second sleeve (203). A rod body (201) is inserted into the first sleeve (202). A nut seat (103) is installed on the back of the first housing (1). A locking pin (104) is installed on the first housing (1) through the nut seat (103). The locking pin (104) passes through the second sleeve (203) and contacts the first sleeve (202).

2. The automatically resetting luggage handle according to claim 1, characterized in that: The first box (1) is provided with a fixing strap (101) to limit and fix the items inside the first box (1).

3. The automatically resetting luggage handle according to claim 1, characterized in that: The bottom end of the first box (1) is rotatably mounted with a pulley (102).

4. The automatically resetting luggage handle according to claim 1, characterized in that: The second box (3) is provided with a buckle (302) at the end opposite to the first box (1). After the first box (1) and the second box (3) are closed, they are locked and fixed by the buckle (302).

5. The automatically resetting luggage handle according to claim 1, characterized in that: The position of the locking pin (104) corresponds to the position of the first sleeve (202), and the first sleeve (202) is locked and fixed by the cooperation of the locking pin (104) and the base plate (107).

6. The automatically resetting luggage handle according to claim 1, characterized in that: The top of the first housing (1) is provided with a protective cover (105), and a limiting sleeve (106) is provided on the protective cover (105). The second sleeve (203) is guided and installed in the first housing (1) through the limiting sleeve (106).

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