Width-adjustable pull rod structure and luggage case

Abstract

The utility model relates to the technical field of luggage cases, in particular to a width-adjustable pull rod structure and a luggage case. The width-adjustable pull rod structure comprises a fixed frame, two connecting sleeves, two pull rods, a grip, a bidirectional screw rod, a bevel gear set, a turntable and a transparent plate, the two-way screw rod is rotationally connected with the fixed frame, the transparent plate covers the fixed frame, the rotating disc is rotationally mounted on the transparent plate, a driving gear of the bevel gear set is mounted on the rotating disc, a driven gear of the bevel gear set is mounted on the two-way screw rod, and the two-way screw rod is rotationally connected with the rotating disc. The two connecting sleeves are respectively in threaded connection with the two-way screw rod; the pull rod comprises a vertical part and a horizontal part, the vertical part is in sliding connection with the connecting sleeve, and the horizontal part is in sliding connection with the grip. The distance between the pull rods can be freely adjusted by rotating the rotating disc.

Description

Technical Field

[0001] This utility model relates to the field of luggage technology, and more specifically, to an adjustable width pull rod structure and a luggage. Background Technology

[0002] In modern travel, suitcases are an essential travel companion, and their design comfort and functionality directly impact the user's travel experience. The pull handle is a key component of a suitcase, affecting not only its portability but also the user's ease of use and comfort.

[0003] Most suitcases have a fixed handle width, which can be uncomfortable for users of different body types. For example, people with larger hands may feel that there is not enough space to hold the handle, making it less comfortable to use; while people with smaller hands may not be able to grip the handle properly, making it feel unstable to operate, especially when dragging heavy luggage, which can easily lead to slipping or inaccurate control. Utility Model Content

[0004] One of the objectives of this invention is to provide an adjustable-width pull rod structure, thereby improving its applicability by adjusting the width of the pull rod.

[0005] An adjustable-width pull rod structure includes a fixed frame, two connecting sleeves, two pull rods, a handle, a double-acting screw, a bevel gear set, a turntable, and a transparent plate. The double-acting screw is rotatably connected to the fixed frame, the transparent plate covers the fixed frame, the turntable is rotatably mounted on the transparent plate, the driving gear of the bevel gear set is mounted on the turntable, the driven gear of the bevel gear set is mounted on the double-acting screw, and the two connecting sleeves are threadedly connected to the double-acting screw. The pull rod includes a vertical part and a horizontal part, the vertical part is slidably connected to the connecting sleeve, and the horizontal part is slidably connected to the handle.

[0006] Furthermore, a first elastic element is provided between the grip and the horizontal portion.

[0007] Furthermore, a protective ring is provided on the transparent plate, the turntable is located inside the protective ring, and the top surface of the turntable does not exceed the top surface of the protective ring.

[0008] Furthermore, the turntable has multiple evenly spaced grooves in the circumferential direction, and the outer wall of the turntable is fitted with a first rubber sleeve that is adapted to the turntable.

[0009] Furthermore, the transparent plate is provided with two scales on the side near the fixed frame, and the two scales are respectively aligned with the two connecting sleeves.

[0010] Furthermore, a second rubber sleeve is fitted onto the grip, and a third rubber sleeve is fitted onto the horizontal portion.

[0011] Furthermore, a dustproof rubber strip is provided between the fixed frame and the transparent plate, and the dustproof rubber strip has a through hole for the connecting sleeve to pass through.

[0012] The second objective of this invention is to provide a suitcase whose applicability is improved by adjusting the width of the pull rod.

[0013] The suitcase includes a suitcase body and the aforementioned adjustable-width pull rod structure, and also includes a mounting plate; the fixing frame is connected to the mounting plate, and the mounting plate is connected to the suitcase body by fasteners.

[0014] Furthermore, the fixed frame and the mounting plate are connected by a locking assembly; the locking assembly includes a locking block and a second elastic element; the locking block is installed in the slide groove of the fixed frame, one end of the second elastic element is connected to the slide groove, the other end of the second elastic element is connected to the locking block, and the second elastic element drives the locking block to engage with the locking groove of the mounting plate.

[0015] Furthermore, it also includes two connecting rods and four locking components, which are distributed at the four corners of the fixing frame. The connecting rods are connected between two upper and lower locking blocks located on the same side. The fixing frame is provided with an operating hole, and two dustproof rubber sheets are provided on the operating hole. The two dustproof rubber sheets are in close contact with each other on their adjacent sides. The transparent plate is provided with clearance holes corresponding to the operating holes.

[0016] The beneficial effects of this utility model are as follows: This utility model can provide better control by freely adjusting the distance between the pull rods by rotating the turntable, making the suitcase easier to handle and reducing the shaking of the suitcase when moving; when moving a suitcase containing heavy or large items, increasing the distance between the pull rods can avoid the risk of tipping over due to instability. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a cross-sectional view of the transparent plate of this utility model.

[0019] Figure 3 This is an enlarged view of part A of this utility model.

[0020] Figure 4 This is a cross-sectional view of the grip of this utility model.

[0021] Figure 5This is a cross-sectional view of the mounting plate of this utility model.

[0022] Figure 6 This is a schematic diagram of the structure of the present utility model and the suitcase.

[0023] Figure 7 This is a schematic diagram showing the separation of the pull rod, grip, and first rubber sleeve of this utility model.

[0024] The markings in the attached diagram are: 1-fixed frame, 2-connecting sleeve, 3-pull rod, 31-handle, 4-double-acting screw, 5-bevel gear set, 6-turntable, 7-first rubber sleeve, 8-transparent plate, 9-scale, 10-protective ring, 11-second rubber sleeve, 12-third rubber sleeve, 13-first elastic element, 14-dustproof rubber strip, 15-mounting plate, 16-block, 17-second elastic element, 18-connecting rod, 19-dustproof rubber sheet. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention. Example 1:

[0026] like Figures 1-7 As shown, an adjustable-width pull rod structure includes a fixed frame 1, two connecting sleeves 2, two pull rods 3, a handle 31, a bidirectional screw 4, a bevel gear set 5, a turntable 6, and a transparent plate 8. The bidirectional screw 4 is rotatably connected to the fixed frame 1, the transparent plate 8 covers the fixed frame 1, the turntable 6 is rotatably mounted on the transparent plate 8, the driving gear of the bevel gear set 5 is mounted on the turntable 6, and the driven gear of the bevel gear set 5 is mounted on the bidirectional screw 4. The two connecting sleeves 2 are threadedly connected to the bidirectional screw 4. The pull rod 3 includes a vertical part and a horizontal part. The vertical part is slidably connected to the connecting sleeve 2, and the handle 31 is slidably connected to the horizontal part. By rotating the turntable 6, the bevel gear set 5 is rotated, which in turn drives the bidirectional screw 4 to rotate, thereby causing the two connecting sleeves 2 to move away from each other or closer to each other, thus adjusting the width between the two pull rods 3. The transparent plate 8 not only allows observation of the component's operation but also enhances the product's technological feel.

[0027] Preferably, a first elastic element 13 is provided between the grip 31 and the horizontal portion. The first elastic element 13 is provided to ensure that the grip 31 is in a central position between the two horizontal portions.

[0028] Preferably, the transparent plate 8 is provided with a protective ring 10, and the turntable 6 is located inside the protective ring 10, with the top surface of the turntable 6 not exceeding the top surface of the protective ring 10. The protective ring 10 protects the turntable 6, preventing it from rotating accidentally when the suitcase is placed in the storage position.

[0029] Preferably, the turntable 6 has multiple evenly spaced grooves in the circumferential direction, and a first rubber sleeve 7 adapted to the turntable 6 is fitted onto the outer wall of the turntable 6. The grooves facilitate manual operation; the first rubber sleeve 7 increases friction and prevents slippage during manual operation.

[0030] Preferably, the transparent plate 8 is provided with two scales 9 on the side near the fixed frame 1, and the two scales 9 are respectively aligned with the two connecting sleeves 2. The movement distance of the pull rod 3 can be precisely adjusted by using the scales 9, making the width adjustment of the pull rod more accurate.

[0031] Preferably, a second rubber sleeve 11 is fitted onto the handle 31. The second rubber sleeve 11 increases the friction between the hand and the handle 31, preventing slippage when pulling the suitcase using the handle 31.

[0032] Preferably, a third rubber sleeve 12 is fitted onto the horizontal part. The third rubber sleeve 12 increases the friction between the hand and the pull rod 3, preventing slippage when pulling the suitcase with the pull rod 3.

[0033] Preferably, a dustproof rubber strip 14 is provided between the fixed frame 1 and the transparent plate 8, and the dustproof rubber strip 14 has a through hole for the connecting sleeve 2 to pass through. The dustproof rubber strip 14 can prevent dust and other impurities from entering the interior of the fixed frame 1 from the top. When adjusting the width of the pull rod 3, the dustproof rubber strip 14 can be stretched and compressed. Example 2:

[0034] like Figure 1-7 As shown, a suitcase includes a suitcase body and the aforementioned adjustable width pull rod structure, and also includes a mounting plate 15; the fixing frame 1 is connected to the mounting plate 15, and the mounting plate 15 is connected to the suitcase body by fasteners.

[0035] Preferably, the fixing frame 1 and the mounting plate 15 are connected by a locking assembly; the locking assembly includes a locking block 16 and a second elastic member 17; the locking block 16 is installed in the slide groove of the fixing frame 1, one end of the second elastic member 17 is connected to the slide groove, the other end of the second elastic member 17 is connected to the locking block 16, and the second elastic member 17 drives the locking block 16 to engage with the locking groove of the mounting plate 15.

[0036] Preferably, the system also includes two connecting rods 18 and four locking components distributed at the four corners of the fixed frame 1. The connecting rods 18 are connected between two upper and lower locking blocks 16 located on the same side. The fixed frame 1 has an operating hole with two dustproof rubber sheets 19 on it, with the sides of the two dustproof rubber sheets 19 close to each other. The transparent plate 8 has clearance holes corresponding to the operating holes. When the pull rod 3 is damaged and needs repair, a hand is inserted into the fixed frame 1 through the operating hole, and the connecting rods 18 are moved closer together. The locking blocks 16 slide close to each other and disengage from the slots. Then, the fixed frame 1 can be detached from the mounting plate 15, thus facilitating the repair or replacement of the pull rod 3.

[0037] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A width-adjustable trolley structure, characterized in that: comprising a fixed frame (1), two connecting sleeves (2), two pulling rods (3), a handle (31), a bidirectional screw rod (4), a bevel gear set (5), a rotating disc (6) and a transparent plate (8); the bidirectional screw rod (4) is rotatably connected with the fixed frame (1), the transparent plate (8) covers the fixed frame (1), the rotating disc (6) is rotatably installed on the transparent plate (8), the driving gear of the bevel gear set (5) is installed on the rotating disc (6), the driven gear of the bevel gear set (5) is installed on the bidirectional screw rod (4), and the two connecting sleeves (2) are threadedly connected with the bidirectional screw rod (4) respectively; the pulling rod (3) comprises a vertical part and a horizontal part, the vertical part is slidably connected with the connecting sleeve (2), and the horizontal part is slidably connected with the handle (31).

2. The width-adjustable trolley structure according to claim 1, characterized in that: a first elastic member (13) is arranged between the handle (31) and the horizontal part.

3. The width-adjustable trolley structure according to claim 1, characterized in that: a protection ring (10) is arranged on the transparent plate (8), the rotating disc (6) is located in the protection ring (10), and the top surface of the rotating disc (6) is not higher than the top surface of the protection ring (10).

4. The width-adjustable trolley structure according to claim 1, characterized in that: the rotating disc (6) is circumferentially provided with a plurality of uniformly spaced grooves, and a first rubber sleeve (7) matched with the rotating disc (6) is sleeved on the outer wall of the rotating disc (6).

5. The width-adjustable trolley structure according to claim 1, characterized in that: two scales (9) are arranged on the side of the transparent plate (8) close to the fixed frame (1), and the two scales (9) are aligned with the two connecting sleeves (2) respectively.

6. The width-adjustable trolley structure according to claim 1, characterized in that: a second rubber sleeve (11) is sleeved on the handle (31), and a third rubber sleeve (12) is sleeved on the horizontal part.

7. The width-adjustable trolley structure according to claim 1, characterized in that: a dustproof rubber strip (14) is arranged between the fixed frame (1) and the transparent plate (8), and the dustproof rubber strip (14) is provided with through holes through which the connecting sleeves (2) pass.

8. A luggage, characterized in that: comprising a box body and the width-adjustable trolley structure according to any one of claims 1-7, further comprising a mounting plate (15); the fixed frame (1) is connected with the mounting plate (15), and the mounting plate (15) is connected with the box body through fasteners.

9. The luggage according to claim 8, characterized in that: the fixed frame (1) and the mounting plate (15) are connected through a locking assembly. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The locking assembly comprises a clamping block (16) and a second elastic member (17); the clamping block (16) is installed in a sliding groove of the fixed frame (1), one end of the second elastic member (17) is connected with the sliding groove, the other end of the second elastic member (17) is connected with the clamping block (16), and the second elastic member (17) drives the clamping block (16) to be clamped with a clamping groove of the mounting plate (15).

10. The luggage of claim 9, wherein: Further comprising connecting rods (18), the connecting rods (18) are two, the locking assemblies are four, the four locking assemblies are distributed at four corners of the fixed frame (1), and the connecting rods (18) are connected between two upper and lower clamping blocks (16) located on the same side; The fixed frame (1) is provided with an operation hole, two dustproof rubber sheets (19) are arranged on the operation hole, and the sides close to each other of the two dustproof rubber sheets (19) are tightly attached to each other; and the transparent plate (8) is provided with a avoiding hole corresponding to the operation hole.

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