Roller rotating mechanism and flat plate trolley

Abstract

The utility model relates to a roller rotating mechanism and a flatbed handcart, the rotating mechanism comprises two end plates, the end plates are both provided with through holes, connecting pipes are rotatably arranged in the through holes, and the connecting pipes are coaxially and fixedly connected with rotating beams used for installing rollers; clamping holes and adjusting holes are formed in the end plates, positioning clamping plates are clamped in the clamping holes, adjusting clamping plates are clamped in the adjusting holes, and clamping rings matched with the positioning clamping plates and the adjusting clamping plates are fixedly arranged on the peripheral face of the connecting pipe; a positioning groove is formed in the end plate and used for installing a fixing beam. Through cooperation of the end plates, the connecting rings, the clamping rings, the positioning clamping plates and the adjusting clamping plates, the rolling wheels fixed to the rotating beam can be turned to one side edge according to actual requirements so as to complete storage and folding of the rolling wheels, or the rolling wheels are unfolded and automatically fixed, the structure is simple, and operation is convenient.

Description

Technical Field

[0001] The present application relates to the technical field of trolley devices, and in particular to a roller rotating mechanism and a flatbed trolley. Background Art

[0002] Handcarts are widely used in production and life because of their low cost, simple maintenance, easy operation, light weight, and can be used in places where mobile vehicles are inconvenient to use. They are very convenient for carrying lighter items in short distances. They are widely used for short-distance transportation in warehouses, manufacturing plants, department stores, logistics centers, freight stations, or distribution routes.

[0003] The existing handcarts are directly pushed and placed in a corner or warehouse when parked, and the wheels directly roll and abut on the ground. When the handcarts are hit by people or other objects, they will move and easily bump against other people or objects, which may cause danger and property loss. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the present application provides a roller rotation mechanism and a flatbed trolley.

[0005] The present application provides a roller rotation mechanism and a flatbed trolley adopting the following technical solutions:

[0006] A roller rotation mechanism comprises two end plates, each of which is provided with a through hole, a connecting tube is rotatably arranged in the through hole, and a rotating beam for mounting the roller is coaxially fixedly connected to the connecting tube; a clamping hole and an adjustment hole are provided on the end plates, a positioning clamping plate is clamped in the clamping hole, an adjusting clamping plate is clamped in the adjusting hole, and a clamping ring matching the positioning clamping plate and the adjusting clamping plate is fixedly arranged on the outer peripheral surface of the connecting tube; a positioning groove is provided on the end plate, and the positioning groove is used to mount the fixed beam.

[0007] A further technical solution is that the rotating mechanism also includes a spring, one end of the spring abuts against the adjusting card plate, and the other end of the spring abuts against the fixed beam; a protrusion for limiting the position of the spring is provided on the adjusting card plate.

[0008] A further technical solution is that the adjustment hole is a triangular structure, and when the spring opens the adjustment clamping plate, the positioning clamping plate and the adjustment clamping plate respectively abut against two ends of the clamping ring.

[0009] A further technical solution is that the positioning card plate is provided with a first limit plate for limiting the distance between the two end plates, and the first limit plate is integrally formed with the positioning card plate; the adjustment card plate is provided with a second limit plate for limiting the distance between the two end plates; the second limit plate is integrally formed with the adjustment card plate.

[0010] A further technical solution is that two positioning ears with fixing holes are fixedly provided on the side of the positioning groove, and the positioning ears are parallel to the axis of the connecting pipe.

[0011] A further technical solution is that a pin hole is formed through the middle of the connecting pipe and the rotating beam, and a latch is provided in the pin hole.

[0012] A flatbed trolley comprises a vehicle body and a roller rotating mechanism. The roller rotating mechanism is fixedly arranged at the bottom of the vehicle body, and rollers are fixedly arranged on the roller steering mechanism.

[0013] This application has the following beneficial technical effects:

[0014] Through the cooperation among the end plate, the connecting ring, the clamping ring, the positioning clamping plate and the adjusting clamping plate, the roller fixed on the rotating beam can be turned to one side according to actual needs to complete the storage and folding of the roller, or the roller can be unfolded and automatically fixed. The structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0016] Figure 2 is a three-dimensional exploded schematic diagram of an embodiment of the present application;

[0017] Figure 3 is a schematic cross-sectional structure diagram of an embodiment of the present application;

[0018] Figure 4 It is a schematic diagram of the overall structure of another embodiment of the present application.

[0019] Figure numerals: 1. end plate; 11. through hole; 12. clamping hole; 13. adjusting hole; 2. connecting pipe; 21. rotating beam; 22. clamping ring; 23. pin hole; 24. latch; 3. positioning clamping plate; 31. first limit plate; 4. adjusting clamping plate; 41. second limit plate; 42. spring; 43. protrusion; 5. positioning groove; 51. fixed beam; 52. positioning ear; 53. fixing hole; 6. vehicle body; 61. roller; 62. extension plate; 63. pull rod. DETAILED DESCRIPTION

[0020] The technical solution in this application is further described in detail below in conjunction with the accompanying drawings.

[0021] The present application embodiment discloses a roller rotation mechanism. Figure 1~Figure 3The rotating mechanism includes two end plates 1, each of which is provided with a through hole 11, in which a connecting tube 2 is rotatably arranged, and a rotating beam 21 for mounting a roller is coaxially fixedly connected to the connecting tube 2; each of the end plates 1 is provided with a clamping hole 12 and an adjusting hole 13, in which a positioning clamping plate 3 is clamped, in which an adjusting clamping plate 4 is clamped, and on the outer peripheral surface of the connecting tube 2, a clamping ring 22 matching with the positioning clamping plate 3 and the adjusting clamping plate 4 is fixedly arranged; the end plate 1 is provided with a positioning groove 5, and the positioning groove 5 is used to install a fixed beam 51.

[0022] The fixing beam 51 is used to be installed and fixed on the bottom plate of the trolley, and two positioning ears 52 with fixing holes 53 are fixedly provided on the side of the positioning groove 5, and the positioning ears 52 are parallel to the axis of the connecting pipe 2. After the fixing beam 51 is inserted into the positioning groove 5, the two positioning ears 52 fit with the side of the fixing beam 51, so that the end plate 1 can be fixed on the fixing beam 51 by screws passing through the fixing holes 53, and the end plate 1 can also be fixed on the fixing beam 51 by welding.

[0023] The rotating mechanism further includes a spring 42 , one end of which abuts against the adjusting card plate 4 , and the other end of the spring 42 abuts against the fixing beam 51 ; both the adjusting card plate 4 and the fixing beam 51 are provided with a protrusion 43 for limiting the position of the spring 42 .

[0024] The adjustment hole 13 is a trapezoidal structure. When the spring 42 opens the adjustment card plate 4, the adjustment card plate 4 fits to the other side of the adjustment hole 13, and the positioning card plate 3 and the adjustment card plate 4 respectively abut against the two ends of the clamp ring 22. When the adjustment card plate 4 is manually pressed, the spring 42 is compressed and deformed, and the adjustment card plate 4 is separated from the clamp ring 22. The clamp ring 22 can drive the connecting pipe 2 and the rotating beam 21 fixed on the connecting pipe 2 to rotate, so that the roller fixed on the rotating beam 21 can be turned to one side, and the storage and folding of the roller can be completed.

[0025] When the roller needs to be opened, the roller is directly moved to drive the rotating beam 21 to rotate, and the connecting tube 2 and the clamping ring 22 rotate until the adjusting clamping plate 4 is automatically clamped at the end of the clamping ring 22 under the force of the spring 42, so that the roller can be unfolded and automatically fixed.

[0026] Furthermore, a pin hole 23 is formed through the middle of the connecting pipe 2 and the rotating beam 21, and a latch 24 is provided in the pin hole 23. The latch 24 can be welded and fixed during installation. In this way, relative rotation between the connecting pipe 2 and the rotating beam 21 can be prevented, and when the connecting pipe 2 rotates, the rotating beam 21 can be driven to rotate synchronously.

[0027] Furthermore, the positioning card plate 3 is provided with a first limit plate 31 for limiting the distance between the two end plates 1, and the first limit plate 31 is integrally formed with the positioning card plate 3; the adjustment card plate 4 is provided with a second limit plate 41 for limiting the distance between the two end plates 1; the second limit plate 41 is integrally formed with the adjustment card plate 4.

[0028] Among them, the first limit plate 31 and the second limit plate 41 have the same width and are located on both sides of the connecting tube 2. They are used to limit the distance between the two end plates 1 to prevent the distance between the two end plates 1 from being too close to fit onto the clamping ring 22 and affecting the rotation of the connecting tube 2, while improving the stability of the connecting tube 2.

[0029] The present application also discloses a flatbed trolley, referring to Figure 4 The trolley comprises a vehicle body 6 and the aforementioned roller rotating mechanism, wherein the roller rotating mechanism is fixedly arranged at the bottom of the vehicle body 6, and a roller 61 is fixedly arranged on the roller steering mechanism.

[0030] Furthermore, an extension plate 62 is provided on the adjustment card plate 4, and a pull rod 63 is fixedly provided on the extension plate 62. The pull rod 63 is in a U-shaped structure and straddles the extension plate 62 on the two roller rotating mechanisms on the same side. When the operator manually pulls the pull rod 63, the two adjustment card plates 4 on the same side can be directly driven to rotate, thereby unlocking the compression spring 42 and folding the roller 61, making the operation more convenient.

[0031] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A roller rotation mechanism, characterized in that: The invention comprises two end plates (1), each of which is provided with a through hole (11), a connecting tube (2) being rotatably arranged in the through hole (11), and a rotating beam (21) for mounting a roller being coaxially fixedly connected to the connecting tube (2); each of the end plates (1) is provided with a clamping hole (12) and an adjusting hole (13), a positioning clamping plate (3) being clamped in the clamping hole (12), and an adjusting clamping plate (4) being clamped in the adjusting hole (13); a clamping ring (22) matching the positioning clamping plate (3) and the adjusting clamping plate (4) being fixedly arranged on the outer peripheral surface of the connecting tube (2); and a positioning groove (5) being provided on the end plate (1), and the positioning groove (5) being used for mounting a fixed beam (51).

2. A roller rotation mechanism according to claim 1, characterized in that: The rotating mechanism also includes a spring (42), one end of the spring (42) abuts against the adjusting card plate (4), and the other end of the spring (42) abuts against the fixed beam (51); and a protrusion (43) for limiting the position of the spring (42) is provided on the adjusting card plate (4).

3. A roller rotation mechanism according to claim 2, characterized in that: The adjustment hole (13) is a triangular structure, and when the spring (42) opens the adjustment clamping plate (4), the positioning clamping plate (3) and the adjustment clamping plate (4) respectively abut against the two ends of the clamping ring (22).

4. The roller rotating mechanism according to claim 1, characterized in that: The positioning card plate (3) is provided with a first limit plate (31) for limiting the distance between the two end plates (1); the first limit plate (31) and the positioning card plate (3) are integrally formed; the adjustment card plate (4) is provided with a second limit plate (41) for limiting the distance between the two end plates (1); the second limit plate (41) and the adjustment card plate (4) are integrally formed.

5. The roller rotating mechanism according to claim 1, characterized in that: Two positioning ears (52) with fixing holes (53) are fixedly arranged on the side of the positioning groove (5), and the positioning ears (52) are parallel to the axis of the connecting pipe (2).

6. The roller rotating mechanism according to claim 1, characterized in that: A pin hole (23) is provided through the middle of the connecting pipe (2) and the rotating beam (21), and a latch pin (24) is provided in the pin hole (23).

7. A flatbed trolley, characterized in that: It comprises a vehicle body (6) and a roller rotating mechanism according to any one of claims 1 to 6, wherein the roller rotating mechanism is fixedly arranged at the bottom of the vehicle body (6), and a roller (61) is fixedly arranged on the roller steering mechanism.

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