CN221729923U - Draw-bar box shell supporting structure - Google Patents

Abstract

The utility model discloses a trolley case shell support structure, comprising a case body and a universal wheel body, wherein the lower end of the case body is provided with a universal wheel body, the upper end of the case body is provided with a tie rod body, the upper end of the tie rod body is provided with a handle, the right end of the case body is provided with a password lock, the outer wall of the case body is provided with anti-pressure blocks at equal intervals, and the case body is provided with a cavity. The beneficial effects of the utility model are as follows: the utility model can effectively enhance the lateral compression and pulling resistance of the device through the first sliding mechanism, thereby reducing the irreversible deformation of the device when subjected to strong pressure or impact, and can effectively enhance the longitudinal compression and pulling resistance of the device through the second sliding mechanism, so that the support of the device is further enhanced, and the structure further effectively prevents the problem of damage to the device, and the structure of the device is relatively simple, and it is relatively quick and convenient to use.

Description

A trolley case shell support structure

Technical Field

The utility model relates to the technical field of trolley cases, in particular to a trolley case shell supporting structure.

Background Art

A trolley case is a suitcase with a trolley and wheels. It is widely used because of its convenience. At the same time, trolley cases are also divided into single-tube trolleys and double-tube trolleys because of the trolley on the case. The tube of the trolley is also divided into square tubes and round tubes, which are convenient for dragging while walking, greatly reducing the burden. Trolley cases can be carried by hand or dragged. The wheels of the trolley cases we usually use are basically located at the bottom of the case, but modern people have designed a new form of trolley case, which is designed into a cylindrical shape, and the wheels are completely wrapped outside the case. This roller design allows this trolley case to better adapt to different terrains, such as directly pulling the case to go up and down stairs easily.

The existing known patent number "20122257356.X" proposes: This utility model discloses a lightweight trolley case; it includes a trolley case frame assembly and a case body arranged on the trolley case assembly, the trolley case frame assembly includes a chassis, wheels arranged below the chassis, a drawbar assembly arranged at the rear side of the chassis, and a frame assembly arranged at the side of the chassis; the case body is arranged on the trolley case frame assembly, and a fixed frame is arranged at the front side of the case body. Such an arrangement has the characteristics of light weight, low cost, uniform weight distribution of the case body, simple installation, and convenient use; and effectively protects the case body from deformation and prevents the case body from falling off the trolley case frame assembly.

Most of the existing related devices have poor pressure resistance and are prone to irreversible deformation when subjected to large pressure or impact force, which can cause serious damage to the device and require replacement or repair, which in turn causes corresponding economic losses to the user. For this reason, we propose a suitcase shell support structure to solve the above problem.

Utility Model Content

The purpose of the utility model is to provide a suitcase shell support structure to solve the problem that most of the existing related devices mentioned in the above background technology have poor pressure resistance and are prone to irreversible deformation when subjected to large pressure or impact force, thereby causing serious damage to the device and requiring replacement or repair, which will cause corresponding economic losses to the user.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a trolley case shell support structure, comprising a case body and a universal wheel body, a universal wheel body is arranged at the lower end of the case body, a tie rod body is arranged at the upper end of the case body, a handle is arranged at the upper end of the tie rod body, a password lock is arranged at the right end of the case body, anti-pressure blocks are equidistantly arranged on the outer wall of the case body, a cavity is arranged in the case body, a first sliding mechanism is arranged in the cavity, a rotating shaft body is arranged at the left and right ends of the first sliding mechanism, a connecting rod is arranged at the rear end of the rotating shaft body, a universal ball body is arranged at the rear end of the connecting rod, a fixing rod is arranged between two adjacent groups of the universal ball bodies, and a second sliding mechanism is arranged in the cavity.

Preferably, the first sliding mechanism includes a first set of rods, a first sliding groove, a first spring, a first slider and a first insertion rod. The first set of rods is arranged in the cavity, a first sliding groove is opened in the first set of rods, a first spring is transversely arranged in the first sliding groove, a first slider is arranged at the right end of the first spring, and the first insertion rod is fixedly connected to the right end of the first slider.

Preferably, the second sliding mechanism includes a second sleeve rod, a second slide groove, a second spring, a second slider and a second insertion rod. The rear end of the fixed rod is provided with a second sleeve rod, a second slide groove is opened in the second sleeve rod, a second spring is transversely arranged in the second slide groove, and the rear end of the second spring is fixedly connected to the second insertion rod.

Preferably, the anti-pressure block is made of rubber material, and the outer wall edge of the anti-pressure block is arc-shaped. Preferably, the handle is made of cotton material, and the outer wall of the handle is provided with wavy anti-slip patterns. Preferably, the first sliding mechanism and the second sliding mechanism are connected by the connecting rod, the universal ball body and the fixed rod to form multiple groups of stable triangles.

Preferably, the outer diameter of the first sliding block is equal to the inner diameter of the first sliding groove, and the outer wall of the first sliding block is rough.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model can effectively enhance the lateral compression and tensile resistance of the device through the first sliding mechanism, thereby reducing the irreversible deformation of the device when subjected to strong pressure or impact, and can effectively enhance the longitudinal compression and tensile resistance of the device through the second sliding mechanism, so that the support of the device is further enhanced, and the structure further effectively prevents the problem of damage to the device, and the structure of the device is relatively simple, it is quick and convenient to use, and the device has good practicality, relatively low production cost, and is easy to promote and use.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic front view of the structure of the utility model;

FIG2 is a schematic diagram of a top view of the structure of the present invention;

FIG3 is a schematic rear view of the structure of the fixing rod of the utility model;

FIG4 is a schematic front cross-sectional view of the structure of the fixing rod of the present invention;

FIG5 is a partial enlarged schematic diagram of A in FIG4 of the present utility model;

FIG. 6 is a partial enlarged schematic diagram of B in FIG. 4 of the present invention.

In the figure: 1. box body; 2. universal wheel body; 3. pull rod body; 4. handle; 5. combination lock; 6. anti-pressure block; 7. cavity; 8. first set of rods; 9. first slide groove; 10. first spring; 11. first slider; 12. first plug rod; 13. shaft body; 14. connecting rod; 15. universal ball body; 16. fixing rod; 17. second set of rods; 18. second slide groove; 19. second spring; 20. second slider; 21. second plug rod.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1-6. An embodiment of the utility model provides: a trolley case shell support structure, including a case body 1 and a universal wheel body 2, the lower end of the case body 1 is provided with the universal wheel body 2, the upper end of the case body 1 is provided with a pull rod body 3, the upper end of the pull rod body 3 is provided with a handle 4, the right end of the case body 1 is provided with a password lock 5, the outer wall of the case body 1 is equidistantly provided with anti-pressure blocks 6, the case body 1 is provided with a cavity 7, the cavity 7 is provided with a first sliding mechanism, the left and right ends of the first sliding mechanism are provided with a shaft body 13, the rear end of the shaft body 13 is provided with a connecting rod 14, the connecting rod 14 A universal ball body 15 is arranged at the rear end, a fixing rod 16 is arranged between two adjacent sets of universal ball bodies 15, and a second sliding mechanism is arranged in the cavity 7, as shown in FIG1 . The device solves the problem that most of the existing related devices mentioned above have poor pressure resistance and are prone to irreversible deformation when subjected to large pressure or impact force, thereby causing serious damage to the device and requiring replacement or repair, which will cause corresponding economic losses to the user. The structure of the device is relatively simple, and it is relatively quick and convenient to use. The device has good practicality, relatively low production cost, and is easy to promote and use.

Furthermore, the first sliding mechanism includes a first sleeve rod 8, a first slide groove 9, a first spring 10, a first slider 11 and a first insertion rod 12. The first sleeve rod 8 is arranged in the cavity 7, the first sleeve rod 8 is provided with a first slide groove 9, the first spring 10 is transversely arranged in the first slide groove 9, the first slider 11 is arranged at the right end of the first spring 10, and the right end of the first slider 11 is fixedly connected to the first insertion rod 12, as shown in Figures 2 and 4. This structure facilitates enhancing the lateral compression and tensile resistance of the device, thereby reducing the irreversible deformation of the device when subjected to strong pressure or impact.

Furthermore, the second sliding mechanism includes a second sleeve rod 17, a second slide groove 18, a second spring 19, a second slider 20 and a second insertion rod 21. The second sleeve rod 17 is arranged at the rear end of the fixed rod 16. The second sleeve rod 17 is provided with a second slide groove 18. The second spring 19 is transversely arranged in the second slide groove 18. The rear end of the second spring 19 is fixedly connected to the second insertion rod 21, as shown in Figures 2 and 4. This structure facilitates enhancing the longitudinal compression and tensile resistance of the device, so that the support of the device is further enhanced, and the structure further effectively prevents the device from being damaged.

Furthermore, the anti-pressure block 6 is made of rubber material, and the edge of the outer wall of the anti-pressure block 6 is arc-shaped, as shown in Figure 1. This structure enables the anti-pressure block 6 to have a certain buffering effect on the box body 1, and the arc shape has no obvious edges and corners, which effectively prevents the outer wall of the anti-pressure block 6 from scratching the user's skin.

Furthermore, the handle 4 is made of cotton material, and the outer wall of the handle 4 is provided with wavy anti-slip patterns, as shown in FIG. 1 . This structure is more skin-friendly and comfortable, and prevents the user from slipping sideways when pulling the handle 4 .

Furthermore, the first sliding mechanism and the second sliding mechanism are connected through the connecting rod 14, the universal ball body 15 and the fixing rod 16 to form a plurality of stable triangles, as shown in FIG. 3, and the stability of the structure is better.

Furthermore, the outer diameter of the first slider 11 is equal to the inner diameter of the first slide groove 9, and the outer wall of the first slider 11 is rough, as shown in Figure 5. This structure allows the first slider 11 to slide stably in the first set rod 8 without causing position deviation, and can make the friction between the first slider 11 and the inner wall of the first set rod 8 greater.

Working principle: When in use, first place the device on a horizontal work surface, then open the combination lock 5, place the items to be used in the box body 1, and then close the box body 1 to lock the combination lock 5. When the box body 1 is subjected to strong pressure or impact force, the anti-pressure block 6 first buffers the force in the first step, and then the box body 1 is slightly deformed, so that the first slider 11 slides in the first set of rods 8, so that the first spring 10 is compressed, and the first insertion rod 12 shrinks in the first set of rods 8. During this period, the friction force generated by the first slider 11 and the inner wall of the first slide groove 9 and the restorative force of the first spring 10 offset each other, and the box body 1 is pressed. The force received is laterally buffered, and at the same time, one end of the connecting rod 14 rotates along the rotating shaft body 13, and the other end thereof rotates along the universal ball body 15. At the same time, the fixed rod 16 is subjected to force, so that the second slider 20 in the second set of rods 17 slides, and the second spring 19 is compressed, so that the second insertion rod 21 can be telescopically movable in the second set of rods 17. The friction force between the second slider 20 and the inner wall of the second slide groove 18 and the restorative force of the second spring 19 offset each other, so that the longitudinal force of the box body 1 is buffered. The device has a simple structure, good stability, and good practicality. The above is the entire working principle of the utility model.

The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims (7)

1. The utility model provides a draw-bar box shell bearing structure, its characterized in that, including box main part (1) and universal wheel body (2), box main part (1) lower extreme is provided with universal wheel body (2), the upper end of box main part (1) is provided with draw-bar body (3), the upper end of draw-bar body (3) is provided with handle (4), the right-hand member of box main part (1) is provided with trick lock (5), the outer wall equidistance of box main part (1) is provided with anti-press block (6), be provided with cavity (7) in box main part (1), be provided with first slide mechanism in cavity (7), both ends are provided with pivot body (13) about first slide mechanism, the rear end of pivot body (13) is provided with connecting rod (14), the rear end of connecting rod (14) is provided with universal ball body (15), adjacent two sets of be provided with dead lever (16) between universal ball body (15), be provided with second slide mechanism in cavity (7).

2. The draw-bar box shell supporting structure according to claim 1, wherein the first sliding mechanism comprises a first loop bar (8), a first sliding groove (9), a first spring (10), a first sliding block (11) and a first inserting rod (12), the first loop bar (8) is arranged in the cavity (7), the first sliding groove (9) is formed in the first loop bar (8), the first spring (10) is transversely arranged in the first sliding groove (9), the first sliding block (11) is arranged at the right end of the first spring (10), and the first inserting rod (12) is fixedly connected to the right end of the first sliding block (11).

3. The draw-bar box shell supporting structure according to claim 1, wherein the second sliding mechanism comprises a second loop bar (17), a second sliding groove (18), a second spring (19), a second sliding block (20) and a second inserting rod (21), the second loop bar (17) is arranged at the rear end of the fixing rod (16), the second sliding groove (18) is formed in the second loop bar (17), the second spring (19) is transversely arranged in the second sliding groove (18), and the second inserting rod (21) is fixedly connected to the rear end of the second spring (19).

4. The draw-bar box shell supporting structure according to claim 1, wherein the anti-pressing block (6) is made of rubber materials, and the edge of the outer wall of the anti-pressing block (6) is arc-shaped.

5. The draw-bar box shell supporting structure according to claim 1, wherein the handle (4) is made of cotton, and the outer wall of the handle (4) is provided with wavy anti-skid patterns.

6. A draw-bar box casing supporting structure according to claim 1, characterized in that the first sliding mechanism and the second sliding mechanism form a plurality of groups of stable triangles through the connection of the connecting rod (14), the universal ball body (15) and the fixing rod (16).

7. A draw-bar box casing supporting structure according to claim 2, characterized in that the outer diameter of the first slider (11) is equal to the inner diameter of the first runner (9), and the outer wall of the first slider (11) is rough.