Luggage roller device

Abstract

The utility model discloses a luggage roller device which comprises two wheel bodies, an upper support and a lower support, the upper support is movably connected with a connecting column, the upper end of the connecting column extends out of the top face of the upper support, the front portion of the lower support is movably connected to the lower portion of the upper support through a hinge shaft, and the two wheel bodies are located on the left side and the right side of the lower support. A connecting shaft is fixed to the middle of the lower portion of the lower support, and the two ends of the connecting shaft extend out of the left side and the right side of the lower support and are fixed to inner rings of bearings fixed to the middles of the two wheel bodies. A positioning mode is adopted, the ends of the locking rods are inserted into the corresponding limiting grooves to achieve braking, the wheel bodies cannot rotate, braking is achieved, the braking effect is good, and the braking device is suitable for wheel bodies with different tire materials, wide in application range and good in effect.

Description

Technical field:

[0001] The utility model relates to the technical field of five accessories, and more specifically to a luggage roller device. Background technology:

[0002] Currently, the bottom of bags or seats are equipped with rollers to facilitate movement. At the same time, a locking device needs to be installed on the rollers to ensure that the bags or seats are locked when they do not need to be moved.

[0003] In the existing rollers, such as the adjustable and easy-to-install multifunctional adjustment frame with Chinese patent application number 201620300867.3, the brake member is turned over and pressed against the spring sheet, so that the spring sheet is pressed against the tire wall fixed outside the wheel body, and braking is achieved through friction. However, the wheel using the brake pad does not have a bearing installed in the roller to provide a braking effect. However, when the surface of the tire used is relatively smooth or the tire wall is not made of rubber, the friction is not high, and braking cannot be achieved or the braking effect is relatively poor, making its use effect unsatisfactory. Utility model content:

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a luggage roller device, which adopts a positioning method to achieve braking by inserting the end of a locking rod into a corresponding limit groove, so that the wheel body cannot rotate, thereby achieving braking. The utility model has good braking effect and is suitable for use with wheels of different tire materials, has a wide range of applications, and has good effects.

[0005] The solution of the utility model to solve the technical problem is:

[0006] A luggage roller device comprises two wheel bodies, an upper bracket and a lower bracket, wherein a connecting column is movably connected to the upper bracket, the upper end of the connecting column extends out of the top surface of the upper bracket, the front part of the lower bracket is movably connected to the lower part of the upper bracket through a hinge shaft, the two wheel bodies are located on the left and right sides of the lower bracket, a connecting shaft is fixed to the middle part of the lower part of the lower bracket, and the two ends of the connecting shaft extend out of the left and right sides of the lower bracket and are fixed to the inner rings of the bearings fixed in the middle part of the two wheel bodies;

[0007] A socket extending forward is formed on the upper part of the rear side wall of the lower bracket, a clamping block and a buffer spring are inserted into the socket, a front end of the buffer spring is pressed against the inner end surface of the socket, a rear end of the buffer spring is pressed against the front end of the clamping block, a locking block is movably connected to the rear part of the lower bracket through a hinge shaft, a triangular protrusion is formed on the front part of the locking block, an upper wall of the triangular protrusion is pressed against the rear end of the clamping block, a locking rod extending left and right is formed on the front end of the lower part of the locking block, and the left and right ends of the locking rod extend out of the left and right sides of the locking block and correspond to the limiting grooves of the two wheel bodies.

[0008] A circular positioning plate is installed on the inner end surface of the wheel body, a central through hole is formed in the middle of the circular positioning plate, the central through hole is communicated with the central through hole of the inner ring of the bearing fixed in the middle of the wheel body, and the connecting shaft is inserted into the central through hole of the circular positioning plate;

[0009] A plurality of protruding strips extending outward are formed on the inner end surface around the central through hole of the circular positioning plate, and a limiting groove is formed between every two adjacent protruding strips.

[0010] When the brake is used, the left and right ends of the locking rod only need to be inserted into and out of the corresponding limit grooves on both sides to achieve brake locking. The brake is easy to operate and has a good braking effect.

[0011] A plug-in rod is formed in the middle of the front end surface of the clamping block, and the plug-in rod is inserted into the buffer spring. Two connecting parts are formed on the rear wall surface of the lower bracket at the rear end of the socket. The middle part of the locking block is located between the two connecting parts and is movably connected to the two connecting parts through a hinge shaft.

[0012] The upper portion of the rear wall surface of the upper bracket is formed with an upper raised limit portion extending obliquely downward and backward, the bottom surface of the upper raised limit portion is formed with an upper positioning rod portion extending obliquely backward and downward, the top surface of the rear portion of the lower bracket is formed with a lower raised limit portion extending obliquely upward and forward, the top surface of the lower raised limit portion is formed with a lower positioning rod portion extending obliquely upward and forward, the upper buffer spring is inserted into the upper positioning rod portion and the lower positioning rod portion, the bottom surface of the upper buffer spring is pressed against the top surface of the lower raised limit portion, and the top surface of the upper buffer spring is pressed against the bottom surface of the upper raised limit portion.

[0013] Among all the spokes of the wheel body, some of the spokes are formed with first clamping through holes, and the remaining spokes are formed with second clamping through holes, a plurality of buckle parts are formed on the outer end surface edge of the circular positioning plate, and the buckle parts are clamped in the corresponding first clamping through holes, the outer end surface of the wheel body is pressed against an outer cover plate, and a plurality of positioning buckle parts are formed on the inner end surface edge of the outer cover plate, and the positioning buckle parts are clamped in the corresponding second clamping through holes.

[0014] The wheel body, the circular positioning plate and the outer cover plate are detachably installed and convenient to replace. The outer cover plates of different styles or colors can be replaced as needed to meet the different needs of users.

[0015] The outstanding effects of the utility model are:

[0016] It adopts a positioning method, and the end of the locking rod is inserted into the corresponding limit groove to achieve braking, so that the wheel body cannot rotate, and the braking effect is good. It is suitable for wheels of different tire materials, has a wide range of applications, and has good effects.

[0017] Moreover, a detachable mounting structure is adopted between the circular positioning disk and the wheel body, and a bearing can be installed in the wheel body to ensure a good rolling effect. At the same time, the end of the locking rod is inserted into the limiting groove of the circular positioning disk to realize limited braking, and the braking effect is good. Description of the drawings:

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the partial structure of the utility model for changing angle;

[0020] Figure 3 yes Figure 1 A cross-sectional view of

[0021] Figure 4 It is a schematic diagram of the local structure without one of the wheel bodies;

[0022] Figure 5 It is a partial exploded schematic diagram of the wheel body, the circular positioning plate and the outer cover plate of the utility model;

[0023] Figure 6 yes Figure 5 Schematic diagram of the angle-changing local structure;

[0024] Figure 7 It is a partial cross-sectional view between the wheel body, the circular positioning plate and the outer cover. Specific implementation method:

[0025] For example, see Figures 1 to 7 As shown, a luggage roller device includes two wheel bodies 30, an upper bracket 10 and a lower bracket 20, wherein the upper bracket 10 is movably connected with a connecting column 40, and the upper end of the connecting column 40 extends out of the top surface of the upper bracket 10; its specific structure is: a vertical plug hole extending downward is formed in the middle of the top surface of the upper bracket 10, the lower part of the connecting column 40 is inserted into the vertical plug hole, an annular groove is formed on the lower outer wall of the connecting column 40, and the upper part of the upper bracket 10 is formed with a section extending through the left and right side walls of the upper bracket 10. The surface of the positioning hole is a rectangle, the middle part of the positioning hole passes through one side of the vertical socket and is the same as the vertical socket, the positioning pin with a rectangular cross-section is stuck in the positioning hole, the middle part of the positioning pin is in the vertical socket and inserted in the annular groove, so that the connecting column 40 will not move out of the vertical socket, and it is guaranteed that it can be rotated in the vertical socket. During subsequent installation, the part of the connecting column 40 extending out of the upper bracket 10 can be inserted and stuck on the corresponding bottom connecting seat of the suitcase or the bottom mounting seat of the seat, and it can be used.

[0026] Further, the front part of the lower bracket 20 is movably connected to the lower part of the upper bracket 10 through a hinge shaft, and the two wheel bodies 30 are located on the left and right sides of the lower bracket 20. A connecting shaft is fixed to the middle part of the lower part of the lower bracket 20, and the two ends of the connecting shaft extend out of the left and right sides of the lower bracket 20 and are fixed to the inner rings of the bearings fixed in the middle part of the two wheel bodies 30;

[0027] The upper part of the rear side wall of the lower bracket 20 is formed with a socket 21 extending forward, the clamping block 22 and the buffer spring 23 are inserted into the socket 21, the front end of the buffer spring 23 is pressed against the inner end surface of the socket 21, and the rear end of the buffer spring 23 is pressed against the front end of the clamping block 22, and a plug rod is formed in the middle of the front end surface of the clamping block 22, and the plug rod is inserted in the buffer spring 23, and two connecting parts 211 are formed on the rear wall of the lower bracket 20 at the rear end of the socket 21, the middle part of the locking block 50 is located between the two connecting parts 211 and is movably connected to the two connecting parts 211 through a hinge shaft, and a triangular protrusion 51 is formed on the front part of the locking block 50, and the upper wall of the triangular protrusion 51 is pressed against the rear end of the clamping block 22;

[0028] Furthermore, a locking rod 52 extending left and right is formed at the front end of the lower part of the locking block 50, and the left and right ends of the locking rod 52 extend out of the left and right sides of the locking block 50; an arc-shaped lever portion 53 is formed on the top surface of the locking block 50, and a plurality of raised anti-slip strips 54 extending left and right are formed on the top surface of the arc-shaped lever portion 53.

[0029] Among all the spokes 35 of the wheel body 30, some of the spokes 35 are formed with first clamping through holes 351, and the remaining spokes 35 are formed with second clamping through holes 352. Among all the spokes 35, one of the spokes 35 is formed with the first clamping through hole 351, and the spokes 35 on both sides thereof are formed with second clamping through holes 352, that is, all the first clamping through holes 351 and the second clamping through holes 352 are arranged at intervals on the wheel body 30, and a rubber layer (rubber solid tire) is clamped at the rim of the wheel body 30;

[0030] The outer end face of the circular positioning plate 32 is pressed against the inner end face of the wheel body 30, and a plurality of snap-in parts 321 are formed on the edge of the outer end face, which are snapped into the corresponding first snap-in through hole 351. The outer end face of the wheel body 30 is pressed against the outer cover plate 60, and a plurality of positioning snap-in parts 61 are formed on the edge of the inner end face of the outer cover plate 60, which are snapped into the corresponding second snap-in through hole 352.

[0031] Furthermore, a central through hole is formed in the middle of the circular positioning disk 32, and the central through hole corresponds to and communicates with the central through hole of the inner ring of the bearing fixed in the middle of the wheel body 30, and the connecting shaft is inserted into the central through hole of the circular positioning disk 32;

[0032] A plurality of outwardly extending protruding strips 33 are formed on the inner end surface around the central through hole of the circular positioning plate 32 , and a limiting groove 31 is formed between every two adjacent protruding strips 33 .

[0033] All the raised strips 33 are evenly distributed on the inner end surface of the circular positioning plate 32 with the central axis of the circular positioning plate 32 as the center, and arc-shaped raised limiting portions 331 are formed on the relative wall surfaces at the outer ends of two adjacent raised strips 33. This structure allows the left and right ends of the locking rod 52 to extend into the corresponding limiting grooves 31 and then slightly rotate the wheel body 30 when in use. The bottom surfaces of the left and right ends of the locking rod 52 will rest against the bottom surfaces of the corresponding limiting grooves 31 and be at the inner ends of the corresponding arc-shaped raised limiting portions 331, making them difficult to move out, thereby achieving locking.

[0034] Furthermore, arc-shaped protective parts are formed on the left and right sides of the front part of the upper bracket 10, and the front wall surface of the wheel body 30 is close to the rear wall surface of the corresponding arc-shaped protective part and matches with the rear wall surface.

[0035] The upper portion of the rear wall surface of the upper bracket 10 is formed with an upper raised limit portion 12 extending obliquely downward and backward, the bottom surface of the upper raised limit portion 12 is formed with an upper positioning rod portion 13 extending obliquely backward and downward, the rear top surface of the lower bracket 20 is formed with a lower raised limit portion 24 extending obliquely upward and forward, the top surface of the lower raised limit portion 24 is formed with a lower positioning rod portion 25 extending obliquely upward and forward, the upper buffer spring 26 is inserted into the upper positioning rod portion 13 and the lower positioning rod portion 25, the bottom surface of the upper buffer spring 26 is pressed against the top surface of the lower raised limit portion 24, and the top surface of the upper buffer spring 26 is pressed against the bottom surface of the upper raised limit portion 12. An upper pressing protrusion 131 with a semicircular cross-section is formed at the rear of the bottom end of the upper positioning rod 13, and a lower pressing protrusion 251 with a semicircular cross-section is formed at the front of the top end of the lower positioning rod 25. The rear wall of the lower pressing protrusion 251 is close to or in close contact with the front wall of the upper pressing protrusion 131.

[0036] This structure enables a buffer connection between the upper bracket 10 and the lower bracket 20, and at the same time, the position between the two is relatively restricted.

[0037] When the present embodiment is in use, the arc-shaped pull portion 53 of the locking block 50 can be pressed to make it flip downward, so that the left and right ends of the locking rod 52 extend into the corresponding limiting grooves 31. At the same time, the lower wall surface of the triangular protrusion 51 is pressed against the rear end of the pressing block 22, and is elastically pressed by the buffer spring 23 to achieve fixation. At this time, locking is achieved so that the two wheel bodies 30 will not move, which is very convenient.

[0038] When rolling is required, the arc-shaped pull portion 53 is pushed upward to make the locking block 50 flip upward, so that the left and right ends of the locking rod 52 move out of the limit groove 31. At this time, the upper wall surface of the triangular protrusion 51 presses against the rear end of the clamping block 22, so that the locking block 50 does not move. At this time, the wheel body 30 can continue to roll, which is very convenient.

[0039] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be limited by the claims.

Claims

1. A luggage roller device, comprising two wheel bodies (30), an upper bracket (10) and a lower bracket (20), characterized in that: The upper bracket (10) is movably connected with a connecting column (40), the upper end of the connecting column (40) protrudes from the top surface of the upper bracket (10), the front part of the lower bracket (20) is movably connected to the lower part of the upper bracket (10) through a hinge shaft, the two wheel bodies (30) are located on the left and right sides of the lower bracket (20), a connecting shaft is fixed in the middle of the lower part of the lower bracket (20), the two ends of the connecting shaft protrude from the left and right sides of the lower bracket (20) and are fixed on the inner rings of the bearings fixed in the middle of the two wheel bodies (30); The upper part of the rear side wall of the lower bracket (20) is formed with a plug hole (21) extending forward, the pressing block (22) and the buffer spring (23) are inserted into the plug hole (21), the front end of the buffer spring (23) is pressed against the inner end surface of the plug hole (21), and the rear end of the buffer spring (23) is pressed against the front end of the pressing block (22); the rear part of the lower bracket (20) is movably connected with a locking block (50) through a hinge shaft, the front part of the locking block (50) is formed with a triangular protrusion (51), the upper wall of the triangular protrusion (51) is pressed against the rear end of the pressing block (22), and the front end of the lower part of the locking block (50) is formed with a locking rod (52) extending left and right, and the left and right ends of the locking rod (52) extend out of the left and right sides of the locking block (50) and correspond to the limiting grooves (31) of the two wheel bodies (30).

2. A luggage roller device according to claim 1, characterized in that: The inner end surface of the wheel body (30) is provided with a circular positioning plate (32), the middle of which is formed with a central through hole, which is aligned with and communicates with the central through hole of the inner ring of a bearing fixed in the middle of the wheel body (30), and the connecting shaft is inserted into the central through hole of the circular positioning plate (32); A plurality of outwardly extending protruding strips (33) are formed on the inner end surface around the central through hole of the circular positioning plate (32), and a limiting groove (31) is formed between every two adjacent protruding strips (33).

3. A luggage roller device according to claim 2, characterized in that: All the raised strips (33) are evenly distributed on the inner end surface of the circular positioning plate (32) with the central axis of the circular positioning plate (32) as the center, and arc-shaped raised limiting portions (331) are formed on the opposite wall surfaces at the outer ends of two adjacent raised strips (33).

4. The luggage roller device according to claim 1, characterized in that: A plug-in rod is formed in the middle of the front end surface of the pressing block (22), and the plug-in rod is inserted into the buffer spring (23). Two connecting parts (211) are formed on the rear wall surface of the lower bracket (20) at the rear end of the insertion hole (21). The middle part of the locking block (50) is located between the two connecting parts (211) and is movably connected to the two connecting parts (211) through a hinge shaft.

5. The luggage roller device according to claim 1, characterized in that: The top surface of the locking block (50) is formed with an arc-shaped pull portion (53), and the top surface of the arc-shaped pull portion (53) is formed with a plurality of raised anti-slip strips (54) extending left and right.

6. The luggage roller device according to claim 1, characterized in that: The left and right sides of the front of the upper bracket (10) are formed with arc-shaped protective parts, and the front wall surface of the wheel body (30) is close to the rear wall surface of the corresponding arc-shaped protective part and matches the rear wall surface.

7. The luggage roller device according to claim 1, characterized in that: The upper portion of the rear wall of the upper bracket (10) is formed with an upper protruding limit portion (12) extending obliquely downward and backward, the bottom surface of the upper protruding limit portion (12) is formed with an upper positioning rod portion (13) extending obliquely backward and downward, the top surface of the rear portion of the lower bracket (20) is formed with a lower protruding limit portion (24) extending obliquely upward and forward, the top surface of the lower protruding limit portion (24) is formed with a lower positioning rod portion (25) extending obliquely upward and forward, the upper buffer spring (26) is inserted into the upper positioning rod portion (13) and the lower positioning rod portion (25), the bottom surface of the upper buffer spring (26) is pressed against the top surface of the lower protruding limit portion (24), and the top surface of the upper buffer spring (26) is pressed against the bottom surface of the upper protruding limit portion (12).

8. The luggage roller device according to claim 7, characterized in that: An upper pressing protrusion (131) with a semicircular cross section is formed at the rear of the bottom end of the upper positioning rod (13), and a lower pressing protrusion (251) with a semicircular cross section is formed at the front of the top end of the lower positioning rod (25), and the rear wall surface of the lower pressing protrusion (251) is close to or in close contact with the front wall surface of the upper pressing protrusion (131).

9. The luggage roller device according to claim 1, characterized in that: A vertical plug hole extending downward is formed in the middle of the top surface of the upper bracket (10), the lower part of the connecting column (40) is inserted into the vertical plug hole, and an annular groove is formed on the lower outer wall of the connecting column (40). A positioning through hole with a rectangular cross section that passes through the left and right is formed on the upper part of the upper bracket (10), the middle part of the positioning through hole passes through one side of the vertical plug hole and is the same as the vertical plug hole, and a positioning pin with a rectangular cross section is stuck in the positioning through hole, and the middle part of the positioning pin is in the vertical plug hole and inserted into the annular groove.

10. The luggage roller device according to claim 1, characterized in that: Among all the spokes (35) of the wheel body (30), some of the spokes (35) are formed with first locking through holes (351), and the remaining spokes (35) are formed with second locking through holes (352). The outer end surface edge of the circular positioning plate (32) is formed with a plurality of locking portions (321), and the locking portions (321) are locked in the corresponding first locking through holes (351). The outer end surface of the wheel body (30) is pressed against an outer cover plate (60), and the inner end surface edge of the outer cover plate (60) is formed with a plurality of positioning locking portions (61), and the positioning locking portions (61) are locked in the corresponding second locking through holes (352).

Images