CN220243260U - Telescopic wheel combination - Google Patents

Abstract

The utility model discloses a telescopic wheel combination, which belongs to the technical field of trolley wheels and comprises a base and a mounting plate movably arranged in the base, wherein four corners of the surface of the mounting plate are fixedly connected with positioning sleeves, connecting columns are movably connected in the positioning sleeves, guide wheels are arranged at the bottoms of the connecting columns, one side outer wall of each positioning sleeve is fixedly connected with a fixing sleeve, a guide hole is formed in one side outer wall of each fixing sleeve, a fixing pin is slidably connected in the guide hole of each fixing sleeve, a fixing hole matched with the fixing pin is formed in one side outer wall of each connecting column, a limiting ring is fixedly connected to the outer wall of each fixing pin, and a fixing spring used for supporting the limiting ring is sleeved outside each fixing pin. This scalable wheel combination not only conveniently stretches out and draws back the leading wheel, can dismantle the leading wheel fast moreover, more makes things convenient for later maintenance.

Description

Telescopic wheel combination

Technical Field

The utility model belongs to the technical field of trolley wheels, and particularly relates to a telescopic wheel combination.

Background

The cart is a carrying vehicle pushed and pulled by people; the cart has one wheel, two wheels, three wheels and four wheels. The traditional cart is made of wood, the modern cart is made of iron, and the cart is one of the common devices in the construction engineering and is mainly used for simple material transportation, waste material output and the like. The trolley in the current market has very large variety and quantity, but the trolley at the bottom of the trolley in the market is inconvenient to store after being used, so that the trolley can shake or even move when being placed under the impact force, and the trolley is easy to damage.

Reference is made to the Chinese patent grant: a retractable cart wheel assembly, authorized bulletin number: CN213594312U, the utility model makes the universal wheel at the bottom of the handcart easy to be stored in the chassis, and is fixed and stable, and is not easy to fall. But it also has certain shortcoming in the use, if the universal wheel passes through the fixed mode installation, when the universal wheel damages and need dismantle, then need dismantle the universal wheel with the help of the instrument, the dismouting process is comparatively troublesome, and later maintenance is inconvenient enough.

Disclosure of Invention

The utility model aims to provide a telescopic wheel combination, which solves the problems that the universal wheel set forth in the background art is installed in a fixed mode, when the universal wheel is damaged and needs to be disassembled, the universal wheel needs to be disassembled by means of a tool, the disassembly and assembly process is troublesome, and the later maintenance is inconvenient.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a scalable wheel combination, includes the base and moves the mounting panel in the base, the equal fixedly connected with locating sleeve in surface four corners of mounting panel, swing joint has the spliced pole in the locating sleeve, the leading wheel is installed to the bottom of spliced pole, and locating sleeve's one side outer wall fixedly connected with fixed sleeve, the guiding hole has been seted up to fixed sleeve's one side outer wall, and sliding connection has the fixed pin in fixed sleeve's the guiding hole, one side outer wall of spliced pole has been seted up with fixed pin assorted fixed orifices, fixed pin's outer wall fixedly connected with spacing ring, and the outside of fixed pin has cup jointed the fixed spring that is used for carrying out the support to the spacing ring.

In a further embodiment, the base is rotationally connected with an adjusting shaft, two groups of thread grooves with opposite directions are symmetrically formed in the outer wall of the adjusting shaft, and moving blocks are connected with the outer sides of the two groups of thread grooves in the outer wall of the adjusting shaft in a threaded mode.

In a further embodiment, a push-pull rod is arranged below the moving block, and two ends of the push-pull rod are both rotationally connected with a connecting seat fixedly connected with the moving block and the mounting plate.

In a further embodiment, one end of the adjusting shaft extends out of the base, and a turntable is fixedly connected to an end surface of the adjusting shaft located outside the base.

In a further embodiment, the turntable is provided with a threaded hole, and a fixing bolt is connected in the threaded hole of the turntable in a threaded manner.

In a further embodiment, the outer walls of the front side and the rear side of the base are provided with through grooves, and baffle plates are fixedly connected in the through grooves of the front side and the rear side of the base.

The utility model has the technical effects and advantages that:

according to the telescopic wheel combination, the fixing pin is pulled to separate the fixing pin from the connecting column, so that the guide wheel can be quickly detached, meanwhile, the connecting column is inserted into the positioning sleeve, the limiting ring is supported by the fixing spring, the fixing pin is inserted into the fixing hole of the connecting column, and the guide wheel can be quickly installed and fixed;

through rotating the regulating spindle, drive two movable blocks and remove in opposite directions or opposite to drive mounting panel and leading wheel and go up and down, leading wheel and ground contact, conveniently remove the base, the leading wheel is retrieved to in the base, can protect the leading wheel, and this scalable wheel combination not only conveniently stretches out and draws back the leading wheel, can dismantle the leading wheel fast moreover, makes things convenient for later maintenance more.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is an enlarged view of the utility model at A in FIG. 1;

FIG. 4 is a schematic view of the structure of the mounting plate of the present utility model;

FIG. 5 is a partial cross-sectional view of a mounting plate of the present utility model;

fig. 6 is an enlarged view of the present utility model at B in fig. 5.

In the figure: 1. a base; 11. a baffle; 2. an adjusting shaft; 21. a moving block; 22. a turntable; 23. a fixing bolt; 24. a push-pull rod; 25. a mounting plate; 3. positioning a sleeve; 31. a connecting column; 32. a guide wheel; 33. a fixed sleeve; 34. a fixing pin; 35. a limiting ring; 36. and fixing the spring.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the utility model.

In order to facilitate the extension and retraction of the guide wheels 32, as shown in fig. 1, 2 and 3, through grooves are formed in the outer walls of the front side and the rear side of the base 1, baffle plates 11 are fixedly connected in the through grooves of the front side and the rear side of the base 1 through buckles, the baffle plates 11 can be quickly detached, the components in the base 1 are conveniently maintained, and meanwhile, a handle can be arranged on the surface of the base 1 according to the actual use requirement, so that the base 1 is conveniently pushed to move;

the inside rotation of the base 1 is connected with the regulating shaft 2 through the bearing, the one end of the regulating shaft 2 extends to the outside of the base 1, and the regulating shaft 2 is located the terminal surface welded fastening of base 1 and has the carousel 22, threaded hole has been seted up on the carousel 22, and threaded hole threaded connection of carousel 22 has fixing bolt 23, screw up fixing bolt 23, can fix the position of carousel 22 and regulating shaft 2, avoid carousel 22 and regulating shaft 2 unexpected rotation, two sets of thread grooves that trend is opposite have been seted up to the outer wall symmetry of regulating shaft 2, and two sets of thread groove outside equal threaded connection of regulating shaft 2 outer wall has movable block 21, the roof symmetry of the inner chamber of base 1 has seted up two spacing spouts that supply movable block 21 to slide, can guarantee two movable block 21 at the inside horizontal migration of base 1 when regulating shaft 2 rotates, swing joint has mounting panel 25 in base 1, the surface four corners of mounting panel all has positioning sleeve 3 through screw fixedly connected with, the spliced pole 31 in the positioning sleeve 3, the leading wheel 32 is installed to the bottom of spliced pole 31, two sets of leading wheel 32 removal groove that supply the movable block 21 moves, leading wheel 32 is seted up to the bottom symmetry of base 1, the movable block 21 is equipped with two sets of movable block 21 down, and leading wheel 32 and the opposite direction wheel 32 is carried out to the movable connection with the opposite direction, the opposite direction and the fixed connection of two leading wheel 32 is carried out with the movable wheel 32, the base 1 is carried out with the movable mounting panel and the movable mounting panel is carried out with the opposite movable wheel 32, and opposite movable mounting plate 32 is carried out.

In order to quickly disassemble and assemble the guide wheel 32, the later maintenance is convenient, as shown in fig. 4, 5 and 6, a fixing sleeve 33 is welded and fixed on the outer wall of one side of the positioning sleeve 3, a guide hole is formed on the outer wall of one side of the fixing sleeve 33 far away from the positioning sleeve 3, a fixing pin 34 is connected in a sliding manner in the guide hole of the fixing sleeve 33, a moving hole for the fixing pin 34 to move is formed on the positioning sleeve 3, a fixing hole matched with the fixing pin 34 is formed on the outer wall of one side of the connecting column 31, a limiting ring 35 is welded and fixed on the outer wall of the fixing pin 34, a fixing spring 36 for supporting the limiting ring 35 is sleeved outside the fixing pin 34, the connecting column 31 is spliced in the positioning sleeve 3, the fixing spring 36 supports the limiting ring 35, the fixing pin 34 is spliced in the fixing hole of the connecting column 31, the guide wheel 32 can be quickly installed and fixed, and the fixing pin 34 is separated from the connecting column 31 by pulling the fixing pin 34, and the guide wheel 32 can be quickly disassembled.

Working principle:

when the telescopic wheel combination is used, after the wheel combination is used, the fixing bolt 23 is unscrewed, the adjusting shaft 2 is rotated through the turntable 22, the two moving blocks 21 are driven to move in opposite directions, the moving blocks 21 drive the mounting plate 25 and the guide wheel 32 to ascend through the push-pull rod 24, the guide wheel 32 is recovered into the base 1, the guide wheel 32 is protected, the fixing bolt 23 is screwed again, and the position of the turntable 22 is fixed;

when the guide wheel 32 is damaged and needs to be replaced, the baffle 11 is opened, the fixing pin 34 is pulled, the fixing pin 34 is separated from the connecting column 31, the connecting column 31 is taken out of the positioning sleeve 3, the guide wheel 32 can be detached, the new guide wheel 32 is replaced, the connecting column 31 is inserted into the positioning sleeve 3, the limiting ring 35 is supported by the fixing spring 36, the fixing pin 34 is inserted into the fixing hole of the connecting column 31, and the guide wheel 32 is installed and fixed quickly.

Finally, it should be noted that: the foregoing is merely preferred in the present utility model and is not intended to limit the present utility model.

Claims (6)

1. A retractable wheel assembly comprising a base (1) and a mounting plate (25) movable in the base (1), characterized in that: the utility model discloses a fixing device for the automobile, including mounting panel (25), connecting column (31), guide wheel (32) are installed to the surface four corners of mounting panel (25), connecting column (3) internal activity connection, guide wheel (33) are installed to the bottom of connecting column (31), and one side outer wall fixedly connected with fixed sleeve (33) of connecting column (31), the guiding hole has been seted up to one side outer wall of fixed sleeve (33), and sliding connection has fixed pin (34) in the guiding hole of fixed sleeve (33), one side outer wall of connecting column (31) has seted up with fixed pin (34) assorted fixed hole, the outer wall fixedly connected with spacing ring (35) of fixed pin (34), and the outside of fixed pin (34) cup joints and is used for carrying out fixed spring (36) that support spacing ring (35).

2. A retractable wheel assembly as in claim 1, wherein: the base (1) is rotationally connected with an adjusting shaft (2), two groups of thread grooves with opposite directions are symmetrically formed in the outer wall of the adjusting shaft (2), and moving blocks (21) are connected with the outer sides of the two groups of thread grooves in the outer wall of the adjusting shaft (2) in a threaded mode.

3. A retractable wheel assembly as in claim 2, wherein: a push-pull rod (24) is arranged below the moving block (21), and two ends of the push-pull rod (24) are both rotationally connected with a connecting seat fixedly connected with the moving block (21) and the mounting plate (25).

4. A retractable wheel assembly as in claim 2, wherein: one end of the adjusting shaft (2) extends out of the base (1), and the end face of the adjusting shaft (2) positioned outside the base (1) is fixedly connected with a rotary table (22).

5. A retractable wheel assembly as in claim 4, wherein: threaded holes are formed in the rotary table (22), and fixing bolts (23) are connected in the threaded holes of the rotary table (22) in a threaded mode.

6. A retractable wheel assembly as in claim 1, wherein: through grooves are formed in the outer walls of the front side and the rear side of the base (1), and baffle plates (11) are fixedly connected in the through grooves of the front side and the rear side of the base (1).