Telescopic wheel and luggage

Abstract

The utility model relates to the technical field of luggage, and discloses a telescopic wheel and luggage, comprising a cylinder, the cylinder is internally provided with a cavity, the inner top of the cavity is provided with a first spring, the other end of the first spring is provided with a rectangular block, the rectangular block is slidably connected in the cavity, the lower surface of the rectangular block is provided with a slide bar, and the slide bar is provided with a slide rail. One end of the sliding rod penetrates through the column body and extends downwards, sliding grooves are formed in the outer surface of the column body, the number of the sliding grooves is two, the sliding grooves are symmetrically arranged, one end of each sliding groove extends into the cavity, limiting columns are arranged at the two ends of the rectangular block, mounting holes are formed in the outer surface of the sliding rod, and trundle assemblies are arranged at the two ends of the connecting rod. According to the caster assembly, the column bodies, the first springs, the rectangular blocks, the sliding rods, the limiting columns and the connecting rods are matched for use, so that when the caster assembly is used on an uneven road, the buffering effect can be achieved, bumping of a luggage is avoided, the service life of the caster assembly is prolonged, and good practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bags and suitcases, in particular to a telescopic wheel and a bag and suitcase. Background Art

[0002] Luggage is an essential daily necessity for people to go out for work or travel. While providing convenience, luggage also needs to take into account the storage space, appearance, and parts such as pulleys. People continue to experiment and develop various materials to make luggage to further optimize its space, appearance, and parts such as pulleys, among which casters are one of the most important parts of luggage.

[0003] The utility model patent application document with publication number "CN212233482U" discloses a luggage with retractable casters, which is mainly composed of a luggage body, a caster shaft, a guide sleeve, a pin shaft, a pressure plate, a first spring, a retaining ring, an eccentric wheel shaft and an eccentric wheel. When using this technical solution, the caster can be inserted into the caster storage hole as a whole without occupying external space, and will not be broken during shipment, thereby providing protection for the caster.

[0004] The luggage with retractable casters disclosed in the above document has the following defects: when the luggage is in use, when it moves on an uneven road, the luggage will experience different degrees of bumps, which may cause the items in the luggage to move or the casters to be damaged, and the practicality is poor.

[0005] It can be seen from this that the existing luggage casters do not have a good buffer structure, and it is necessary to improve the existing deficiencies and provide a telescopic wheel and luggage. Utility Model Content

[0006] The purpose of the utility model is to provide a telescopic wheel and a bag to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0008] The utility model discloses a telescopic wheel and a bag, comprising a column, a cavity is provided inside the column, a first spring is installed on the inner top of the cavity, a rectangular block is installed on the other end of the first spring, the rectangular block is slidably connected to the inside of the cavity, a sliding rod is installed on the lower surface of the rectangular block, one end of the sliding rod passes through the column and extends downward, a sliding groove is provided on the outer surface of the column, the sliding groove is fixed as two and symmetrically arranged, one end of the sliding groove extends to the inside of the cavity, limiting columns are provided at both ends of the rectangular block, the limiting columns are slidably connected to the inside of the sliding groove, a mounting hole is provided on the outer surface of the sliding rod, a connecting rod is installed inside the mounting hole, and caster assemblies are provided at both ends of the connecting rod.

[0009] Furthermore, a connecting ear block is provided on the outer surface of the column, the connecting ear blocks are fixed in two and symmetrically arranged, and a connecting hole is opened in the middle of the connecting ear block.

[0010] Furthermore, the caster assembly includes a connecting plate and a pulley, the connecting plates are fixed in two and symmetrically arranged, the connecting plates are rotatably connected to the outer surface of the connecting rod, a connecting shaft is provided between the two connecting plates, the connecting shafts are fixed in three and evenly distributed, and the outer surface of the connecting shaft is rotatably connected to the pulley.

[0011] Furthermore, a chamber is opened inside the rectangular block, one end of the limit column extends to the inside of the chamber, a slide is slidably connected to the inside of the chamber, the slide is fixed in two and symmetrically arranged, a second spring is installed between the two slides, a limit column is installed on one end of the slide away from the second spring, a limit hole is opened on the outer surface of the column, the limit holes are fixed in two and symmetrically arranged, one end of the limit hole extends to the inside of the cavity, and a limit column is installed inside the limit hole.

[0012] Furthermore, the outer surface of the pulley is provided with anti-skid patterns.

[0013] A bag comprises a bag body and also comprises any of the telescopic wheels described above.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model uses the column, the first spring, the rectangular block, the slide rod, the limit column and the connecting rod in coordination, so that the caster assembly can play a buffering effect when used on an uneven road, thereby preventing the luggage from being bumped and extending the service life of the caster assembly.

[0016] (2) The utility model uses the connecting rod, the connecting plate and the pulley in coordination, so that the user does not need to lift the luggage body when pulling the luggage body upstairs, thus saving most of the effort and achieving better practicality.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are 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 creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is an exploded view of the local structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the utility model when the limiting column and the limiting hole cooperate;

[0022] Figure 4 This is a schematic diagram of the structure of the utility model when the limit column and the slide groove cooperate;

[0023] Figure 5 This is a cross-sectional view of a rectangular block structure of the utility model;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] In the figure: 1, column; 101, slide groove; 102, connecting ear block; 103, limiting hole; 2, first spring; 3, rectangular block; 4, slide rod; 401, mounting hole; 5, limiting column; 6, connecting rod; 7, caster assembly; 701, connecting plate; 702, pulley; 8, slide plate; 9, second spring; 10, luggage body. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1 - Figure 5 As shown, the utility model is a telescopic wheel and a bag, comprising a column 1, a cavity is opened inside the column 1, a first spring 2 is installed on the inner top of the cavity, a rectangular block 3 is installed on the other end of the first spring 2, the rectangular block 3 is slidably connected to the inside of the cavity, a slide rod 4 is installed on the lower surface of the rectangular block 3, one end of the slide rod 4 passes through the column 1 and extends downward, a slide groove 101 is opened on the outer surface of the column 1, the slide groove 101 is fixed in two and symmetrically arranged, one end of the slide groove 101 extends to the inside of the cavity, limiting columns 5 are arranged at both ends of the rectangular block 3, the limiting columns 5 are slidably connected to the inside of the slide groove 101, a mounting hole 401 is opened on the outer surface of the slide rod 4, a connecting rod 6 is installed inside the mounting hole 401, and caster assemblies 7 are arranged on both ends of the connecting rod 6.

[0028] The outer surface of the column 1 is provided with a connecting ear block 102 . The connecting ear blocks 102 are fixed in two and symmetrically arranged. A connecting hole is opened in the middle of the connecting ear block 102 .

[0029] The caster assembly 7 includes a connecting plate 701 and a pulley 702. The connecting plates 701 are fixed in two and symmetrically arranged. The connecting plates 701 are rotatably connected to the outer surface of the connecting rod 6. A connecting shaft is provided between the two connecting plates 701. The connecting shafts are fixed in three and evenly distributed. The outer surface of the connecting shaft is rotatably connected to the pulley 702.

[0030] A chamber is opened inside the rectangular block 3, one end of the limiting column 5 extends to the inside of the chamber, a slide plate 8 is slidably connected to the inside of the chamber, the slide plate 8 is fixed in two and symmetrically arranged, a second spring 9 is installed between the two slide plates 8, and a limiting column 5 is installed on one end of the slide plate 8 away from the second spring 9. A limiting hole 103 is opened on the outer surface of the column 1, the limiting holes 103 are fixed in two and symmetrically arranged, one end of the limiting hole 103 extends to the inside of the cavity, and a limiting column 5 is installed inside the limiting hole 103.

[0031] The outer surface of the pulley 702 is provided with anti-skid patterns.

[0032] A bag comprises a bag body 10 and any of the above-mentioned retractable wheels.

[0033] When in use, the limiting column 5 is squeezed so that the limiting column 5 pushes the slide plate 8 to move inside the cavity, and the second spring 9 is gradually compressed. When the outer surface of the limiting column 5 is flush with the outer surface of the rectangular block 3, the limiting column 5 is completely separated from the inside of the limiting hole 103, and the first spring 2 restores its elasticity to push the rectangular block 3 and the slide bar 4 to move downward. When the limiting column 5 is located on one side of the slide groove 101, the second spring 9 restores its elasticity to push the slide plate 8 to reset, so that one end of the limiting column 5 extends to the inside of the slide groove 101. When walking on a bumpy road, the caster assembly 7 repeatedly pushes the slide bar 4 and the rectangular block 3 to move inside the cavity. At the same time, the first spring 2 can absorb the external impact force, so that the luggage body 10 maintains a relatively stable state. Through the cooperation of the slide groove 101 and the limiting column 5 When in use, the sliding rod 4 and the rectangular block 3 slide, limiting the movement range, avoiding excessive stretching of the first spring 2, resulting in a shortened service life, and also limiting the limit column 5 from returning to the inside of the limit hole 103. When the caster assembly 7 needs to be retracted, the limit column 5 is squeezed so that the limit column 5 pushes the slide plate 8 to move inside the chamber, and the second spring 9 is gradually compressed. When the outer surface of the limit column 5 is flush with the outer surface of the rectangular block 3, the limit column 5 is completely separated from the inside of the slide groove 101, and then the sliding rod 4 is pushed upward, so that the sliding rod 4 pushes the rectangular block 3 to reset. When the limit column 5 is located on one side of the limit hole 103, the second spring 9 restores its elasticity and pushes the slide plate 8 to reset, so that one end of the limit column 5 extends to the inside of the limit hole 103, completing the reset of the caster assembly 7.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A telescopic wheel, comprising a column (1), characterized in that: The column (1) is provided with a cavity inside, a first spring (2) is installed on the inner top of the cavity, a rectangular block (3) is installed on the other end of the first spring (2), the rectangular block (3) is slidably connected inside the cavity, a sliding rod (4) is installed on the lower surface of the rectangular block (3), one end of the sliding rod (4) passes through the column (1) and extends downward, a sliding groove (101) is provided on the outer surface of the column (1), the sliding groove (101) is fixed as two and symmetrically arranged, one end of the sliding groove (101) extends to the inside of the cavity, both ends of the rectangular block (3) are provided with limit columns (5), the limit columns (5) are slidably connected inside the sliding groove (101), the outer surface of the sliding rod (4) is provided with a mounting hole (401), a connecting rod (6) is installed inside the mounting hole (401), and caster assemblies (7) are provided on both ends of the connecting rod (6).

2. A telescopic wheel according to claim 1, characterized in that: The outer surface of the column (1) is provided with a connecting ear block (102), the connecting ear blocks (102) are fixed in two and symmetrically arranged, and a connecting hole is opened in the middle of the connecting ear block (102).

3. The telescopic wheel according to claim 1, characterized in that: The caster assembly (7) comprises a connecting plate (701) and a pulley (702), wherein the connecting plates (701) are fixed in two and symmetrically arranged, and the connecting plates (701) are rotatably connected to the outer surface of the connecting rod (6), and a connecting shaft is provided between the two connecting plates (701), and the connecting shafts are fixed in three and evenly distributed, and the outer surface of the connecting shaft is rotatably connected to the pulley (702).

4. The telescopic wheel according to claim 1, characterized in that: A chamber is provided inside the rectangular block (3), one end of the limiting column (5) extends into the chamber, a slide plate (8) is slidably connected to the chamber, two of the slide plates (8) are fixed and symmetrically arranged, a second spring (9) is installed between the two slide plates (8), one end of the slide plate (8) away from the second spring (9) is installed with the limiting column (5), a limiting hole (103) is provided on the outer surface of the column (1), two of the limiting holes (103) are fixed and symmetrically arranged, one end of the limiting hole (103) extends into the cavity, and the limiting column (5) is installed inside the limiting hole (103).

5. The telescopic wheel according to claim 3, characterized in that: The outer surface of the pulley (702) is provided with anti-slip patterns.

6. A bag, comprising a bag body (10), characterized in that: It also includes the telescopic wheel according to any one of claims 1 to 5.

Images