A roller structure that is easy to disassemble

Abstract

The utility model provides a roller structure that is easy to disassemble, which belongs to the field of mechanical technology and solves the problem that the existing luggage case roller is inconvenient to disassemble. The roller structure that is easy to disassemble includes: a connecting piece, which is movably connected to the bottom of the luggage case through a rotating shaft; a plug-in, which is provided in two pieces, and the two plug-ins are arranged on both sides of the connecting piece, and each plug-in is connected to the connecting piece through a spring; a wheel rod, which is sleeved under the connecting piece, and a receiving groove for accommodating the connecting piece is provided on the top of the wheel rod, and two openings corresponding to the two plug-ins are provided on both sides of the wheel rod, and each plug-in horizontally passes through the corresponding opening, and at least one roller is installed under the wheel rod. The utility model has the characteristic of being easy to disassemble.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery, and relates to a roller structure which is easy to disassemble, in particular to a roller structure which is easy to disassemble and is used for luggage rollers. Background Art

[0002] Rollers are a common device, commonly found on transportation tools such as suitcases and trolleys, which provide friction for the main body so that the main body can roll forward. Rollers can be divided into two types: static friction rollers and rolling friction rollers. Static friction rollers are a special type of rolling friction rollers that have less friction and can provide greater thrust, while rolling friction rollers have greater friction but only need to provide less thrust. In the roller structure of suitcases, rolling friction rollers are still the main ones.

[0003] Nowadays, more and more universal wheel roller structures are available on the market. They can rotate 360° horizontally and can be pushed and pulled freely on smooth roads, which is quite labor-saving. However, they are not easy to fix, and the wheels are relatively small, the joints are thin, and the impact resistance is relatively poor. Therefore, when pushing on uneven roads, the external force on the universal wheel structure is large, and the roller structure is prone to damage.

[0004] Since the existing luggage case roller structure is inconvenient to disassemble and repair, the roller structure cannot be replaced separately after it is damaged, and the use cost is high.

[0005] In summary, in order to solve the deficiencies of the existing luggage case roller structure, the utility model designs a roller structure that is reasonable in structure, convenient in operation and easy to disassemble. Summary of the invention

[0006] The utility model solves the problems existing in the prior art and provides a roller structure which is reasonable in structure, convenient in operation and easy to disassemble.

[0007] The purpose of the utility model can be achieved through the following technical solutions: a roller structure that is easy to disassemble, comprising:

[0008] A connecting piece, movably connected to the bottom of the luggage box via a rotating shaft;

[0009] There are two plug-ins, which are arranged on both sides of the connecting piece, and each plug-in is connected to the connecting piece through a spring;

[0010] The wheel rod is sleeved under the connecting piece, a receiving groove for accommodating the connecting piece is provided on the top of the wheel rod, two openings corresponding to the two plug-ins are provided on both sides of the wheel rod, each plug-in horizontally passes through the corresponding opening, and at least one roller is installed under the wheel rod.

[0011] As a further improvement of the present invention, the bottom of the accommodating groove has a supporting surface, two groups of guide pillars are symmetrically arranged in the accommodating groove, and a clamping groove is formed between two guide pillars in the same group.

[0012] As a further improvement of the present invention, two groups of guide grooves corresponding to the two groups of guide columns are symmetrically arranged at the bottom of the connecting piece, and the two guide grooves in the same group are surrounded to form a card block corresponding to the above-mentioned card slot.

[0013] As a further improvement of the present invention, installation grooves corresponding to the two plug-ins are provided on both sides of the connecting piece, and a circular groove corresponding to the spring is provided in the middle of each installation groove.

[0014] As another improvement of the present invention, the plug-in is roughly arranged in a "concave" shape, and the middle part of the "concave" shaped plug-in protrudes outward to form a convex column, one end of the spring is sleeved on the convex column, and the other end rests on the corresponding circular groove.

[0015] As a further improvement of the present case, the parts of the plug-in located on both sides of the protruding column are mounting parts, the end surface of the mounting part facing the mounting groove is a first arcuate surface, and second arcuate surfaces corresponding to the first arcuate surfaces are respectively arranged on both sides of the circular groove.

[0016] As a further improvement of the present case, each mounting portion has a lug extending obliquely from the outside, two auxiliary grooves corresponding to the two lugs are provided on both sides of the mounting groove, and each auxiliary groove is vertically upwardly penetrated through the connecting piece.

[0017] Compared with the prior art, the utility model has a reasonable structural arrangement. The wheel rod is movably connected to the bottom of the suitcase through the arrangement of a connecting piece. At the same time, a plug-in is arranged to facilitate the detachable connection between the wheel rod and the connecting piece, thereby achieving the purpose of replacing components such as the wheel rod, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model.

[0019] Figure 2 yes Figure 1 Schematic diagram of the explosion structure.

[0020] Figure 3 yes Figure 1 sectional view of .

[0021] Figure 4 yes Figure 1 Schematic diagram of the structure with the connecting parts removed.

[0022] Figure 5 It is a structural schematic diagram of the connecting piece in the utility model.

[0023] Figure 6 yes Figure 5Schematic diagram of the structure from another perspective.

[0024] Figure 7 It is a structural schematic diagram of the plug-in in the utility model.

[0025] Figure 8 It is a structural schematic diagram of the second embodiment of the present utility model.

[0026] Fig. 9 yes Figure 8 Schematic diagram of part of the structure.

[0027] In the figure, 10, wheel rod; 11, guide column; 12, slot; 13, opening; 14, support surface; 15, roller; 16, accommodating groove; 17, reinforcing rib; 20, connecting piece; 21, guide groove; 22, block; 23, mounting groove; 24, second arc-shaped surface; 25, auxiliary groove; 26, circular groove; 30, plug-in; 31, boss; 32, spring; 33, mounting portion; 34, first arc-shaped surface; 35, lug. DETAILED DESCRIPTION

[0028] The technical solution of the utility model is further described below in conjunction with the embodiments and drawings.

[0029] like Figures 1 to 3 As shown, the roller structure that is easy to disassemble includes:

[0030] The connecting member 20 is movably connected to the bottom of the luggage case via a rotating shaft (not shown in the figure);

[0031] There are two plug-ins 30, which are arranged on both sides of the connecting member 20, and each plug-in 30 is connected to the connecting member 20 through a spring 32;

[0032] The wheel rod 10 is sleeved under the connecting member 20. A receiving groove 16 for accommodating the connecting member 20 is provided at the top of the wheel rod 10. Two openings 13 corresponding to the two plug-ins 30 are provided on both sides of the wheel rod 10. Each plug-in 30 passes horizontally through the corresponding opening 13. At least one roller 15 is installed under the wheel rod 10.

[0033] Nowadays, more and more universal wheel roller structures are available on the market. They can rotate 360° horizontally and can be pushed and pulled freely on smooth roads, which is quite labor-saving. However, they are not easy to fix, and the wheels are relatively small, the joints are thin, and the impact resistance is relatively poor. Therefore, the external force on the universal wheel structure is large when pushing on uneven roads, and the roller structure is prone to damage. In view of the inconvenience of disassembly and maintenance of the existing luggage roller structure, the roller structure cannot be replaced separately after it is damaged, and the cost of use is high.

[0034] To this end, the utility model provides a roller structure that is easy to disassemble. The setting of the connecting piece 20 flexibly connects the wheel rod 10 to the bottom of the suitcase. At the same time, the plug-in 30 is provided to facilitate the detachable connection between the wheel rod 10 and the connecting piece 20, thereby achieving the purpose of replacing the wheel rod 10 and other components, and the operation is convenient.

[0035] Specifically, the wheel rod 10 is sleeved on the connecting member 20, and the two plug-ins 30 pass through the opening 13 on the wheel rod 10 and further penetrate into the connecting member 20. By pressing the two plug-ins 30, the plug-ins 30 can be urged to disengage from the opening 13 inwardly. At this time, the wheel rod 10 can be disengaged from the connecting member 20, thereby realizing the detachable installation of the roller structure.

[0036] like Figures 4 to 7 As shown, preferably, the bottom of the accommodating groove 16 has a supporting surface 14 , two groups of guide pillars 11 are symmetrically arranged in the accommodating groove 16 , and a clamping groove 12 is formed between the two guide pillars 11 in the same group.

[0037] Furthermore, two groups of guide grooves 21 corresponding to the two groups of guide pillars 11 are symmetrically arranged at the bottom of the connecting member 20 , and the two guide grooves 21 in the same group are surrounded to form a clamping block 22 corresponding to the above-mentioned clamping groove 12 .

[0038] When the wheel rod 10 is sleeved on the connecting member 20, the bottom of the connecting member 20 abuts against the supporting surface 14, so that the connecting member 20 remains stable, which is beneficial to ensure the stable installation of the entire roller structure and the bottom of the suitcase.

[0039] In this embodiment, the connecting member 20 and the wheel rod 10 are preferably connected by correspondingly arranged guide columns 11 and guide grooves 21, and the guide columns 11 are embedded in the corresponding guide grooves 21, while the corresponding clamping blocks 22 are embedded in the corresponding clamping grooves 12, to ensure that the connecting member 20 and the wheel rod 10 are stably sleeved, thereby ensuring that the wheel rod 10 and the roller 15 remain in a stable state, which is convenient for the pushing and pulling of the suitcase.

[0040] like Figure 8 As shown, it is a schematic diagram of the structure of the second embodiment of the utility model. In actual use, one roller 15 or two rollers 15 can be installed under the wheel rod 10. According to the number of rollers 15, the corresponding structure of the wheel rod 10 will also change, but the wheel rod 10 can still be connected with the matching structure between the connecting member 20 and the plug-in 30.

[0041] like Fig. 9 As shown, the internal structure of the wheel rod 10 in the second embodiment, the wheel rod 10 is also connected to the connecting member 20 through the accommodating groove 16, and also has a corresponding guide column 11 structure, wherein the supporting surface 14 inside the wheel rod 10 in the second embodiment is composed of the surfaces of two reinforcing ribs 17, which will not affect the stable connection between the wheel rod 10 and the connecting member 20.

[0042] Preferably, mounting grooves 23 corresponding to the two plug-ins 30 are formed on both sides of the connecting member 20 , and a circular groove 26 corresponding to the spring 32 is formed in the middle of each mounting groove 23 .

[0043] like Figures 5 to 7 As shown, further, the plug-in 30 is roughly arranged in a "concave" shape, and the middle part of the "concave" shaped plug-in 30 protrudes outward to form a convex column 31, one end of the spring 32 is sleeved on the convex column 31, and the other end rests on the corresponding circular groove 26.

[0044] The plug-in 30 is actually horizontally inserted into the corresponding installation groove 23 . In the present invention, the plug-in 30 is preferably arranged in a “concave” shape, and a movable connection between the plug-in 30 and the connector 20 is achieved through the matching arrangement of the convex column 31 and the spring 32 .

[0045] Preferably, the parts of the plug 30 located on both sides of the protruding column 31 are mounting portions 33, and the end surfaces of the mounting portions 33 facing the mounting groove 23 are first arcuate surfaces 34. Second arcuate surfaces 24 corresponding to the first arcuate surfaces 34 are respectively arranged on both sides of the circular groove 26.

[0046] When there is no external force, the plug-in 30 partially extends out of the mounting groove 23 and passes through the opening 13 of the wheel rod 10 under the action of the spring 32. At this time, the two plug-ins 30 limit the position of the wheel rod 10, and the wheel rod 10 cannot be detached from the connecting member 20, further ensuring the stable connection between the wheel rod 10 and the connecting member 20; when external force acts on the plug-in 30, the plug-in 30 extends inward into the mounting groove 23 and detaches from the opening 13 on the wheel rod 10. At this time, the wheel rod 10 can be detached from the connecting member 20, thereby achieving the purpose of disassembly.

[0047] Here, the first curved surface 34 is matched with the second curved surface 24 to facilitate the plug-in 30 to extend into or out of the connector 20 along the mounting groove 23. The first curved surface 34 moves in contact with the second curved surface 24, which is beneficial to ensure the stable movement of the plug-in 30 in the mounting groove 23, thereby facilitating the smooth disassembly work.

[0048] Furthermore, a lug 35 extends obliquely from the outer side of each mounting portion 33 , two auxiliary grooves 25 corresponding to the two lugs 35 are formed on both sides of the mounting groove 23 , and each auxiliary groove 25 passes through the connecting member 20 vertically upward.

[0049] In this embodiment, the lug 35 is preferably arranged in cooperation with the auxiliary groove 25. When there is no external force, the plug-in 30 partially extends out of the installation groove 23. At this time, the lug 35 abuts against the auxiliary groove 25, which can prevent the plug-in 30 from directly detaching from the connector 20 under the action of the spring 32; when an external force acts on the plug-in 30, the plug-in 30 extends inward into the installation groove 23, and the lug 35 moves inward with the plug-in 30 as a whole. Preferably, the space of the auxiliary groove 25 can meet the travel of the lug 35 to move back and forth, so as to avoid affecting the pressing work of the plug-in 30.

[0050] Here, it is preferred that the auxiliary groove 25 vertically penetrates the connector 20 upward. Such a structural setting, on the one hand, is convenient for the opening of the auxiliary groove 25. During production and manufacturing, the auxiliary groove 25 and the connector 20 can be integrally formed by injection molding. On the other hand, during installation, it is convenient to observe the relative position of the plug-in 30 and the connector 20 to ensure that the plug-in 30 is correctly embedded in the connector 20, which is conducive to the progress of related work.

[0051] The roller structure that is easy to disassemble is reasonably arranged. The wheel rod 10 is movably connected to the bottom of the suitcase through the arrangement of the connecting piece 20. At the same time, the plug-in 30 is arranged to facilitate the detachable connection between the wheel rod 10 and the connecting piece 20, thereby achieving the purpose of replacing the wheel rod 10 and other components, and the operation is convenient.

[0052] The preferred embodiments of the present invention are described herein, but the protection scope of the present invention is not limited thereto. Any modification or supplement or replacement of the specific embodiments described by technicians in the field of the present invention shall be included in the protection scope of the present invention.

Claims

1. A roller structure that is easy to disassemble, characterized in that: include: A connecting piece, movably connected to the bottom of the luggage box via a rotating shaft; There are two plug-ins, which are arranged on both sides of the connecting piece, and each plug-in is connected to the connecting piece through a spring; The wheel rod is sleeved under the connecting piece, a receiving groove for accommodating the connecting piece is provided on the top of the wheel rod, two openings corresponding to the two plug-ins are provided on both sides of the wheel rod, each plug-in horizontally passes through the corresponding opening, and at least one roller is installed under the wheel rod.

2. The roller structure that is easy to disassemble according to claim 1, characterized in that: The bottom of the accommodating groove is provided with a supporting surface. Two groups of guide pillars are symmetrically arranged in the accommodating groove, and a clamping groove is formed between the two guide pillars in the same group.

3. The roller structure that is easy to disassemble according to claim 2, characterized in that: Two groups of guide grooves corresponding to the two groups of guide columns are symmetrically arranged at the bottom of the connecting piece, and the two guide grooves in the same group are surrounded to form a clamping block corresponding to the above-mentioned clamping groove.

4. The roller structure that is easy to disassemble according to claim 1, characterized in that: Both sides of the connecting piece are provided with mounting grooves corresponding to the two plug-ins, and the middle of each mounting groove is provided with a circular groove corresponding to the spring.

5. The roller structure that is easy to disassemble according to claim 4, characterized in that: The plug-in is roughly arranged in a "concave" shape, and the middle part of the "concave" shaped plug-in protrudes outward to form a convex column, one end of the spring is sleeved on the convex column, and the other end abuts against the corresponding circular groove.

6. The roller structure that is easy to disassemble according to claim 5, characterized in that: The parts of the plug located on both sides of the convex column are mounting parts, and the end surfaces of the mounting parts facing the mounting groove are first arcuate surfaces. Second arcuate surfaces corresponding to the first arcuate surfaces are respectively arranged on both sides of the circular groove.

7. The roller structure that is easy to disassemble according to claim 6, characterized in that: A lug is obliquely extended from the outside of each mounting portion, two auxiliary grooves corresponding to the two lugs are provided on both sides of the mounting groove, and each auxiliary groove is vertically upwardly penetrated through the connecting piece.

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