TWM606383U - Trolley working brace with adjustable span - Google Patents

Abstract

A trolley working support with adjustable span. The trolley includes a fixed frame attached with several wheels, a handle and a movable frame pivoted on the fixed frame and connected and interacted by a linkage group, The movable frame is provided with two working supports; the handle can be pulled by the user from a static angle that tends to be perpendicular to an operating angle that is inclined; the handle drives the movable frame and the two working supports from one The reference position is pulled up to a lifting position, and the working support frame raises a ground storage basket off the ground; by being assembled on the working support frame and the movable frame of a fastening component that can be tightened, the two working supports The racks can be moved horizontally relative to or separated from each other and fixed their positions, so as to change the span of the two working support racks to correspond to the baskets of different widths.

Description

Trolley working support with adjustable span

This creation is related to the trolley, more specifically, it is a trolley that can adjust the span of the working support according to the width of the basket.

A trolley is a transport tool that is pushed and pulled manually. A common trolley includes a frame with wheels and a carrier board erected on the frame. Due to the wheel diameter of the wheels and the convenience of trolley operation, the carrier board is a height from the ground, so it is necessary to manually move the goods on or off the carrier board one by one, which is time-consuming and laborious, and it is easy to dump the goods during the loading and unloading process. Or fall to the ground.

In order to solve this problem, the industry has developed a trolley that uses the principle of leverage, which roughly includes a frame with additional wheels, a handle and two working supports that are arranged on the frame and connected and interact with each other by a linkage group. The angle of the handle can be pulled by the user from a static angle which tends to be vertical to an inclined operating angle, and the operating angle is conducive to the user's effort to push or pull the trolley. Based on the associated action of the linkage group, the handle can drive the two working supports from a reference position to a lifting position from a static angle to an operating angle. The working support at the reference position can be aligned under the side frames of a storage basket. When the working support is raised to the lifting position, the storage basket is lifted off the ground, and the user can push and pull the trolley to transport the storage basket. After arriving at the predetermined location, return the handle from the operating angle to the static angle, return the working support from the lifting position to the reference position, and place the basket back on the ground.

The trolley with the lever principle described in the prior art has the disadvantage that the working support cannot be adjusted according to the width of the basket. Therefore, trolleys of different sizes must be made according to the width of the basket. In view of this, this creation proposes an adjustable span trolley working support to overcome the above-mentioned problems.

Technical features and effects of this creation:

A trolley working support with adjustable span. The trolley includes a fixed frame attached with several wheels, a handle and a movable frame pivoted on the fixed frame and connected and interacted by a linkage group, The movable frame is provided with two working supports; the handle can be pulled by the user from a static angle that tends to be perpendicular to an operating angle that is inclined; the handle drives the movable frame and the two working supports from one When the reference position is raised to a lifting position, the working support frame raises a ground storage basket off the ground; the working support frame has at least two long holes parallel to the left and right directions of the trolley; one of the long holes is set Equipped with a tightening assembly that can be operated tightly. The tightening assembly connects and fixes the working support to the movable frame through the elongated hole; the other elongated hole is assembled with a guide assembly, the guide The component is connected to the movable frame through the elongated hole; when the fastening component is loosened, the two working supports can be opposite to the range specified by the fastening component, the guide component and the elongated hole Or separate horizontal movement, according to which the span of the two working supports is changed, according to the corresponding baskets with different widths.

This creation uses two baffles to standardize the operating angle of the handle. The two baffles are located on the left and right of the fixed frame, corresponding to the left and right handles of the handle. Elevation angle, the elevation angle is the same as the operating angle. When the handle is pulled back by the user and tilted to contact the baffle, the operating angle of the handle is regulated to avoid insufficient or excessive operating angle. In addition, the stop The plate also provides a support point for the handle, and the handle can be stably maintained at the operating angle.

10: wheels

11: Fixed frame

12: Connecting rod group

13: Handle

131: Left stick

132: Right stick

14: movable frame

15: work support

16: long hole

17: Fastening components

18: Guiding components

20: Larger width basket

201: Border

21: Smaller basket

211: Border

30: bezel

A1: Static angle

A2: Operating angle

P1: Reference position

P2: Lifting position

[Figure 1] This is a three-dimensional appearance of the creative trolley.

[Figure 2] This is a three-dimensional exploded view of the creative work support frame and trolley.

[Figure 3] is a schematic diagram of the moving and fixing of the creative work support.

[Figure 4] This is a top view of the creative trolley, describing the movement of the work support.

[Figure 5] This is one of the front views of the creative trolley, depicting a schematic diagram of the work support supporting a wider basket.

[Figure 6] is the second front view of the creative trolley, depicting a schematic diagram of the lower support frame supporting a narrow basket.

[Figure 7] is one of the side views of this creative trolley, describing the linkage between the handle and the work support.

[Figure 8] is the second side view of the creative trolley, describing the positional relationship between the work support and the basket.

[Figure 9] The second side view of this creative trolley, describing the action of lifting the basket by the working support.

In order to facilitate the description of the central idea of the creation in the column of the above-mentioned new content, specific examples are used to express it. The various objects in the embodiment are drawn according to the proportion, size, deformation or displacement suitable for explanation, rather than drawn according to the proportion of the actual element, which will be described first. In the following description, the same and symmetrically arranged elements are represented by the same numbers. In the following description, directional terms such as "front, back, left, right, up, down, inside, and outside" are used, which are expressed in accordance with the view direction and cannot be construed as a restriction on this creation.

As shown in Figure 1, the creative trolley includes a fixed frame 11 attached with several wheels 10, and a handle 13 and a movable frame 14 pivoted on the fixed frame 11 and connected by a linkage group 12 to interact. , The movable frame 14 is provided with two working supports 15.

As shown in Figures 2 and 3, the work support 15 is opened parallel to the left and right directions of the trolley Several elongated holes 16; among them, at least one elongated hole 16 is assembled with a tightening assembly 17 that can be tightened, and the tightening assembly 17 connects the working support 15 to the movable frame through the elongated hole 16 14. In addition, at least one elongated hole 16 is assembled with a guide assembly 18, and the guide assembly 18 is connected to the movable frame 14 through the elongated hole 16.

The fastening component 17 is preferably a known quick-release assembly with a handle. The fastening component 17 can be connected to the working support 15 and the movable frame 14 in a tight or loose connection by operating the handle. The fixed connection relationship keeps the working support 15 on the movable frame 14 unable to move, and the loose connection allows the working support 15 to move along the direction and length of the elongated hole 16 relative to the left and right directions of the trolley. The limit of displacement.

The guide assembly 18 is preferably a component that is relatively combined by threads. The guide assembly 18 connects the working support 15 to the movable frame 14, but does not tighten the threads to make the guide assembly 18 work The support frame 15 and the movable frame 14 maintain proper looseness.

Release the fastening component 17, the working support 15 can move horizontally relative to the left and right direction of the trolley within the range specified by the elongated hole 16 and the guide component 18. After confirming the position, re-tighten the fastening The fixed component 17 maintains the position of the working support 15.

As shown in Fig. 4, the horizontal movement of the two working supports 15 is relative or separated, so that the span of the two working supports 15 is changed.

As shown in Figure 5, the two working supports 15 move horizontally apart to expand the span. The two working supports 15 can correspond to a basket 20 with a larger width and are aligned with the frames 201 on both sides of the basket 20. under.

As shown in Figure 6, the two working supports 15 move relatively horizontally to reduce the span, so that the two working supports 15 can correspond to a basket 21 with a smaller width and are aligned with the sides of the basket 21. Below box 211.

As shown in Figs. 7-9, the angle of the handle can be inclined from the static angle A1, which tends to be vertical, to a tilted operating angle A2 by the user. The operating angle A2 facilitates the user to push or pull the trolley with less effort. Based on the associated action of the linkage group 12, the handle 13 can drive the two working supports 15 from a reference position P1 to a lifting position P2 from a static angle A1 to an operating angle A2. The working support 15 at the reference position P1 can be aligned under the frame 201 on both sides of the basket 20. When the working support 15 is pulled up to the lifting position P2, the basket 20 is lifted off the ground and the user can Push and pull the trolley to transport the basket 20. After arriving at the predetermined location, the handle is returned from the operating angle A2 to the static angle A1, the working support 15 is returned from the lifting position P2 to the reference position P1, and the basket 20 is returned to the ground.

As shown in Figure 1, Figure 2, and Figure 7, in order to protect the working angle of the connecting rod group 12, the handle 13, and the working support 15, the operating angle of the handle 13 must be regulated to avoid insufficient or over. Insufficient operating angle A2 may cause the lifting height of the basket 20 to be insufficient and hit the ground protrusions during operation. An excessively large operating angle may cause the connecting rod group 12 to pass the dead point and fail to return or be damaged. This creation is based on two baffles 30 to standardize the operating angle A2 of the handle 13. The two baffles 30 are located on the left and right of the fixed frame 11, corresponding to a left handle 131 and a right of the handle 13. The handlebar 132, the baffle 30 is at an elevation angle, and the elevation angle is the same as the operating angle A2. When the handle 13 is pulled back by the user and tilted to contact the baffle 30, the operating angle A2 of the handle 13 It is regulated. In addition, the baffle 30 also provides a support point for the handle 13, and the handle 13 can be stably maintained at the operating angle. Preferably, the baffle 30 is arc-shaped, and the baffle 30 can contact part of the outer contour surface surrounding the left handle 131 and the right handle 132, so that the handle 13 can be covered and supported.

10: wheels

11: Fixed frame

12: Connecting rod group

13: Handle

131: Left stick

132: Right stick

14: movable frame

15: work support

16: long hole

17: Fastening components

18: Guiding components

30: bezel

Claims (5)

A trolley working support with adjustable span. The trolley includes a fixed frame attached with several wheels, a handle and a movable frame pivoted on the fixed frame and connected and interacted by a linkage group, The movable frame is provided with two working supports; the handle can be pulled by the user from a static angle that tends to be perpendicular to an operating angle that is inclined; the handle drives the movable frame and the two working supports from one The reference position is pulled up to a lifting position, and the work support frame lifts a ground storage basket from the ground; its characteristics are: The working support has at least two long holes parallel to the left and right directions of the trolley; one of the long holes is assembled with a tightening component that can be tightened, and the fixing component passes through the long hole to make the working support Connected and fastened to the movable frame; the other elongated hole is assembled with a guiding component, and the guiding component is connected to the movable frame through the elongated hole; Release the fastening component, and the two work supports can move relative to or away from each other in the range specified by the fastening component, the guide component and the elongated hole, so as to change the two working supports. The span of the support frame corresponds to the baskets of different widths. The trolley work support with adjustable span as described in claim 1, wherein the fastening component is a quick-release assembly with a handle. The trolley working support with adjustable span as described in claim 1, wherein the guide assembly is a relatively combined element through threads. The trolley work support with adjustable span as described in claim 1, which further includes two baffles, the two baffles are separately arranged on the left and right parts of the fixed frame, corresponding to a left handle and A right handle, the baffle is at an elevation angle, the elevation angle is the same as the operating angle, the handle is pulled and tilted to contact the baffle, the handle reaches the operating angle. The trolley work support with adjustable span as described in claim 4, wherein the baffle is arc-shaped, and when the left and right handles contact the two baffles, the baffle contacts the outer part of the handle Contour surface.

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