Longitudinal translation directional caster

Abstract

The utility model relates to a longitudinal translation directional trundle which comprises a trundle frame 1, a trundle 2, a bottom plate 3, a spring positioning pin 4, a pull rod 5 and a sliding block 6. The device is characterized in that the wheel carrier 1 is provided with a lower sliding rail 1-1, and the wheel carrier 1 is provided with the wheel 2; the spring positioning pin 4 is mounted on the wheel carrier 1; pull rods 5 are mounted on the wheel carriers 1; the bottom plate 3 is provided with an upper sliding rail 3-1, and the upper sliding rail 3-1 is provided with a positioning hole 3-2; the spring positioning pin 4 is provided with a sliding block 6; the inclined surface of the sliding block 6 is in contact with the inclined surface of the pull rod 5; and the spring positioning pin 4 on the wheel carrier can be matched with the positioning hole 3-2 of the bottom plate 3. When the pull rod translates outwards or inwards, the positioning pin of the spring positioning pin is separated from or matched with the positioning hole in the bottom plate, and the relative matched position between the upper sliding rail of the bottom plate and the lower sliding rail of the wheel carrier can translate or be locked by the upper sliding rail and the lower sliding rail. Therefore, the longitudinal translation directional trundle is mounted on the trolley, the position between the front trundle and the rear trundle has a translation function, and convenience is brought to the use of a user.

Description

Technical Field

[0001] The utility model relates to a caster, in particular to a longitudinal translation directional caster. Background Art

[0002] The directional casters of the prior art are installed on the trolley, and the positions of the wheels of the front and rear casters cannot be translated relative to each other, which brings inconvenience to the users of the trolley with special needs.

[0003] If the two casters installed on the trolley can be moved farther forward and backward relative to each other, the trolley will be more stable when pushed;

[0004] If the front and rear positions of the wheels of the two casters installed on the trolley can be moved closer to each other, the trolley will be more convenient to fold, carry and store. Summary of the invention

[0005] The utility model aims to overcome the deficiencies in the prior art and provide a longitudinal translation directional caster.

[0006] The technical implementation scheme of the utility model is:

[0007] The utility model discloses a longitudinal translation directional caster, which comprises a wheel frame, a bottom plate, wheels, a pull rod, a spring positioning pin and a sliding block.

[0008] Its characteristics are that a lower slide rail is provided on the wheel frame; a wheel is installed on the wheel frame; a spring locating pin is installed on the lower slide rail of the wheel frame; a pull rod is installed in the wheel frame; an upper slide rail is provided on the bottom plate, and the upper slide rail of the bottom plate and the lower slide rail of the wheel frame cooperate with each other; two or more locating holes are provided on the upper slide rail of the bottom plate; a slider is installed on one end of the locating pin of the spring locating pin, and an inclined surface is provided on the slider; an inclined surface is provided on one end of the pull rod, and limiting devices are respectively provided at both ends of the inclined surface of the pull rod, and the inclined surface of the pull rod is in contact with the inclined surface of the slider.

[0009] When the pull rod translates outward or inward, the inclined surface of the pull rod contacts the inclined surface of the slider on the locating pin of the spring locating pin. Under the action of the internal spring of the spring locating pin, the slider on the locating pin of the spring locating pin moves downward or upward, and at the same time, the slider drives the locating pin of the spring locating pin to move downward or upward, and the locating pin of the spring locating pin on the wheel frame disengages or cooperates with the locating hole of the upper slide rail of the corresponding base plate, and the relative position between the upper slide rail of the base plate and the lower slide rail of the wheel frame can translate or be locked by it.

[0010] Therefore, the position of the wheel of the longitudinal translation directional caster has the function of translation. When installed on the trolley, the positions of the wheels of the front and rear casters have the function of translation relative to each other, which brings convenience to the user.

[0011] The utility model has the advantages:

[0012] 1. The longitudinal translation directional casters are installed on the trolley. The relative positions of the front and rear casters have the function of translation, so that the front and rear positions of the two casters can be translated farther relative to each other, and the trolley will be more stable when pushed, which brings convenience to some trolley users with special needs.

[0013] 2. The longitudinal translation directional casters are installed on the trolley. The relative positions of the front and rear casters have the function of translation. The front and rear positions of the two casters can be translated closer to each other, which brings convenience when folding, carrying and storing the trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the structural assembly of the wheel frame, wheel, pull rod, spring positioning pin and slider of the longitudinal translation directional caster;

[0015] Figure 2 It is a three-dimensional schematic diagram of the structure of the upper slide rail of the bottom plate of the longitudinal translation directional caster;

[0016] Figure 3 It is a three-dimensional schematic diagram of the structural assembly of the spring positioning pin and the slider of the longitudinal translation directional caster;

[0017] Figure 4 It is a three-dimensional schematic diagram of the structural assembly of the pull rod, spring positioning pin and slider of the longitudinal translation directional caster;

[0018] Figure 5 It is a three-dimensional schematic diagram of the structural assembly of the longitudinal translation directional caster.

[0019] In the figure: wheel frame (1), wheel (2), bottom plate (3), spring positioning pin (4), pull rod (5), slide block (6). DETAILED DESCRIPTION

[0020] The specific implementation scheme of the utility model is described in detail below with reference to the accompanying drawings.

[0021] like Figure 1 As shown, a lower sliding rail (1-1) is provided on the wheel frame (1);

[0022] The wheel frame (1) is equipped with wheels (2);

[0023] A spring positioning pin (4) is installed on the lower sliding rail (1-1) of the wheel frame (1);

[0024] A pull rod (5) is installed in the wheel frame (1).

[0025] like Figure 2 As shown, an upper slide rail (3-1) is provided on the bottom plate (3);

[0026] Two or more positioning holes (3-2) are arranged on the upper slide rail (3-1) of the bottom plate (3).

[0027] like Figure 3 As shown, a slider (6) is installed on one end of the positioning pin of the spring positioning pin (4), and an inclined surface is provided on the slider (6).

[0028] like Figure 4 As shown, an inclined surface is provided on one end of the pull rod (5), and limit devices are provided at both ends of the inclined surface of the pull rod (5) to limit the distance of the pull rod (5) moving inward or outward; the inclined surface of the pull rod (5) contacts the inclined surface of the slider (6) on the locating pin of the spring locating pin (4); when the pull rod (5) moves longitudinally inward or outward, the slider (6) on the locating pin of the spring locating pin (4) moves upward or downward, and at the same time, the slider (6) drives the locating pin of the spring locating pin (4) to move upward or downward.

[0029] like Figure 5 As shown, a lower sliding rail (1-1) is provided on the wheel frame (1);

[0030] The wheel frame (1) is equipped with wheels (2);

[0031] A spring positioning pin (4) is installed on the lower sliding rail (1-1) of the wheel frame (1);

[0032] A pull rod (5) is installed in the wheel frame (1);

[0033] An upper slide rail (3-1) is provided on the bottom plate (3), and the upper slide rail (3-1) of the bottom plate (3) and the lower slide rail (1-1) of the wheel frame (1) cooperate with each other;

[0034] Two or more positioning holes (3-2) are provided on the upper slide rail (3-1) of the bottom plate (3);

[0035] A slider (6) is installed on one end of the positioning pin of the spring positioning pin (4), and an inclined surface is provided on the slider (6);

[0036] An inclined surface is provided on one end of the pull rod (5), and limiting devices are provided at both ends of the inclined surface of the pull rod (5); the inclined surface of the pull rod (5) and the inclined surface of the slider (6) on the positioning pin of the spring positioning pin (4) are in contact with each other;

[0037] When the pull rod (5) translates outward, the inclined surface of the pull rod (5) contacts the inclined surface of the slider (6) on the locating pin of the spring locating pin (4). Under the action of the internal spring of the spring locating pin (4), the slider (6) on the locating pin of the spring locating pin (4) moves downward. At the same time, the slider (6) drives the locating pin of the spring locating pin (4) to move downward. The locating pin of the spring locating pin (4) on the wheel frame (1) is disengaged from the corresponding locating hole (3-2) on the upper slide rail (3-1) of the bottom plate (3). The relative positions between the upper slide rail (3-1) of the bottom plate (3) and the lower slide rail (1-1) of the wheel frame (1) can translate.

[0038] When the pull rod (5) translates inward, the inclined surface of the pull rod (5) contacts the inclined surface of the slider (6) on the locating pin of the spring locating pin (4). Under the action of the internal spring of the spring locating pin (4), the slider (6) on the locating pin of the spring locating pin (4) moves upward, and at the same time, the slider (6) drives the locating pin of the spring locating pin (4) to move upward. The locating pin of the spring locating pin (4) on the wheel frame (1) cooperates with the locating hole (3-2) on the upper slide rail (3-1) of the corresponding base plate (3), and the relative positions between the upper slide rail (3-1) of the base plate (3) and the lower slide rail (1-1) of the wheel frame (1) are locked.

[0039] Thereby, the position of the wheel of the longitudinal translation directional caster has the function of translation.

[0040] The longitudinal translation directional casters are installed on the trolley. The position between the front and rear casters can be translated farther, and the trolley will be more stable when pushed, which brings convenience to the user; the position between the front and rear casters can be translated closer to each other, and the trolley will be more convenient to fold, carry and store.

Claims

1. A longitudinal translation directional caster, comprising: A wheel frame (1), a wheel (2), a bottom plate (3), a spring positioning pin (4), a pull rod (5), and a slider (6); the wheel frame (1) is equipped with a wheel (2); a lower slide rail (1-1) is provided on the wheel frame (1); an upper slide rail (3-1) is provided on the bottom plate (3); the upper slide rail (3-1) of the bottom plate (3) and the lower slide rail (1-1) of the wheel frame (1) cooperate with each other; a spring positioning pin (4) is provided on the lower slide rail (1-1) of the wheel frame (1); the spring A slider (6) is installed on one end of the positioning pin of the positioning pin (4), and an inclined surface is set on the slider (6); a pull rod (5) is installed in the wheel frame (1), and an inclined surface is set on one end of the pull rod (5); two or more positioning holes (3-2) are set on the upper slide rail (3-1) of the base plate (3); the inclined surface of the pull rod (5) and the inclined surface of the slider (6) are in contact with each other; the positioning pin of the spring positioning pin (4) on the wheel frame (1) and the positioning hole (3-2) of the base plate (3) can cooperate with each other.

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