CN103386995B - Handcart with bearing plate and caster seat linkage - Google Patents

Abstract

The invention relates to a handcart with a bearing plate and a caster seat in linkage, which is characterized in that a pivoting part is arranged below a handcart frame, a caster seat and the bearing plate are sleeved on the pivoting part, a poking surface extends from one side of the caster seat, and the bearing plate is provided with a poking surface in an extending way to mutually act with the poking surface of the caster seat, so that when the bearing plate is poked downwards, the caster is unfolded, and when the bearing plate is poked upwards, the caster is folded at the same time, so that the bearing plate and the caster can be synchronously folded, and the effect of easy folding and unfolding is achieved.

Description

The trolley with the supporting plate and the caster seat connected

technical field

The purpose of the present invention is to provide a trolley in which the bearing plate and the caster seat are linked together, especially a kind of caster wheel that can be unfolded or retracted by moving the caster seat while moving the bearing plate.

Background technique

Press, the trolley generally used at present adopts fixed type, therefore quite takes up space, and is difficult to store and carry.

Contents of the invention

Therefore, in view of the shortcomings of the above-mentioned conventional trolleys, the inventors developed and improved them, and finally created the present invention.

The main purpose of the present invention is to provide a structure that is convenient to operate the folding and unfolding of the casters of the trolley, and further achieve a trolley that is convenient to fold and unfold the casters.

Main features of the present invention: trolley frame, below the trolley frame there is a pivot joint and a pivot joint seat, and a positioning seat and an elastic assembly are provided on the pivot joint; One side of the caster base is set with casters, while the other side is set with a toggle surface, and the caster base is provided with fitting holes and positioning jacks; the supporting plate is pivotally connected to the pivotal seat of the trolley frame, The supporting plate is provided with a toggle body and a pivoting groove. Through the combination of the above-mentioned components, a trolley with conveniently folding casters can be provided.

Another feature of the present invention is that the elastic component is provided with a positioning member and a toggle member, which are respectively inserted into the positioning seat and the positioning socket, so that the elastic force for folding the casters can be provided.

The feature of the present invention is also that: wherein the toggling surface on the caster seat and the toggling body of the bearing plate are in a staggered shape, so when the toggling surface of the bearing plate is toggled, the toggling surface of the caster seat will be turned simultaneously. Push and turn to push out or retract the casters.

Description of drawings

Figure 1 is an exploded perspective view of the present invention.

Fig. 2 is a three-dimensional combined view of the present invention.

Fig. 3 is a schematic diagram (1) of the action of the bearing plate and the caster seat of the present invention.

Fig. 4 is a schematic diagram (2) of the action of the bearing plate and the caster seat of the present invention.

Fig. 5 is a schematic diagram (3) of the action of the bearing plate and the caster seat of the present invention.

2 trolley racks

20 hinge

200 positioning holes

201 positioning seat

202 elastic components

2020 Orientation Member

2021 Toggle Member

21 pivot seat

210 binding holes

211 positioning perforation

212 articulated body

213 pivot hole

3 casters

30 fitting holes

300 positioning jack

31 casters

32 toggle surface

33 fitting surface

4 bearing plate

40 toggle body

400 toggle surface

401 resistance surface

402 perforation

41 pivot slot

410 pivot piercing

N threaded assembly

detailed description

Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the embodiment of the present invention is mainly provided with a pivot joint 20 and a pivot joint seat 21 under the trolley frame 2, wherein the pivot joint 20 is provided with a positioning The hole 200, the positioning seat 201 and the elastic assembly 202, wherein the elastic assembly 202 can be composed of a compression spring, a torsion spring or a hydraulic device, the elastic assembly 202 is provided with a positioning member 2020 and a toggle member 2021, and the pivot seat 21 is The shape is combined under the trolley frame 2, and the pivot joint seat 21 is provided with a joint hole 210, a positioning through hole 211, a pivot body 212 and a pivot joint hole 213; the caster seat 3 is assembled on the pivot joint part 20 of the trolley frame 2 , the center of the caster seat 3 is provided with a fitting hole 30, and the two sides of the caster seat 3 are respectively provided with a caster 31 and a toggle surface 32, wherein the toggle surface 32 is provided with a fitting surface 33, and the fitting hole 30 One side is provided with a positioning jack 300; the bearing plate 4 is pivotally connected to the pivot seat 21 of the trolley frame 2, and the bearing plate 4 is extended with a toggle body 40, and the toggle body 40 is provided with a toggle The surface 400, the abutting surface 401 and the perforation 402, and the supporting plate 4 are provided with a pivot joint groove 41 inside the toggle body 40, and a pivot joint perforation 410 is provided on the pivot joint groove 41;

When assembling, the positioning member 2020 of the elastic component 202 is first positioned and fixed on the positioning seat 201 of the pivot joint 20, and then the fitting hole 30 of the caster seat 3 is inserted into the pivot joint 20, and at the same time, the dial of the elastic component 202 is The moving member 2021 is inserted into the positioning socket 300, and then the joint hole 210 of the pivotal seat 21 is inserted into the pivotal joint 20 and attached to the bottom of the caster seat 3, and then the screw assembly N is punched through the positioning hole of the pivotal seat 21. 211 penetrates and passes through the positioning hole 200 of the pivot portion 20 to be screwed together, and then the pivot groove 41 of the bearing plate 4 is placed on the pivot body 212, and the threaded assembly N is connected by the through hole 402 and the pivot hole 410. And through the pivot hole 213 and the pivot hole 410, it is screwed and fixed. At this time, the toggle surface 32 of the caster seat 3 is staggered on the toggle body 40 of the supporting plate 4, and the toggle surface 32 and 400 are formed. Contact linkage state, so that the assembly can be easily completed.

When in use, the supporting plate 4 below the trolley frame 2 is first moved downwards. At this time, the moving body 40 of the supporting plate 4 moves the moving surface 32 of the caster seat 3 toward the position of the supporting plate 4 due to the rising displacement. direction, so the moving body 40 of the supporting plate 4 and the moving surface 32 of the caster seat 3 are actuated and at the same time the caster 31 is unfolded. Closely attached to the abutting surface 401 inside the toggle body 40, due to the torsion effect of the positioning member 2020 of the elastic component 202 and the toggle member 2021, the caster seat 3 is completely positioned and does not move, and the caster 31 on the caster seat 3 is pushed out It is in an unfolded and positioned state with the trolley frame 2, so that the working state of the trolley frame 2 can be easily completed.

When it is desired to fold the trolley frame 2, it is only necessary to move the bearing plate 4 upwards. At this time, the abutment surface 401 of the toggle body 40 of the bearing plate 4 is separated from the fitting surface 33 of the caster seat 3, and the caster seat 3 That is, the torsion force of the toggling member 2021 of the elastic component 202 is applied to the trolley frame 2 to form a fitting shape, so that the trolley frame 2 can be conveniently folded for storage without occupying space.

With the above, it is only a preferred embodiment of the present invention, and the scope of implementation of the present invention cannot be limited with this, that is, all equivalent changes or modifications made according to the content of the invention description of the patent scope of the present invention should still belong to Within the scope covered by the patent of the present invention.

Claims (1)

1. A trolley with a supporting plate and a caster seat linked, comprising: The trolley frame, the bottom of the trolley frame is provided with a pivot joint and a pivot seat, and the pivot joint is provided with a positioning seat and an elastic assembly, and the elastic assembly is provided with a positioning member and a toggle member; The caster seat is located at the pivot joint of the trolley frame. One side of the caster seat is provided with casters, while the lower part of the other side is provided with a toggle surface, and the outer side of the other side is provided with a fitting surface, and the casters The seat is provided with fitting holes and positioning jacks; The supporting plate is pivotally connected to the pivoting seat of the trolley frame. The supporting plate is provided with a toggle body and a pivot joint groove. Moving surface; The positioning member and the toggle member of the elastic component are respectively inserted in the positioning seat and the positioning socket, so that the elastic force for the folding of the caster can be provided. The pivot joint groove connection of the set plate; The toggling surface on the caster seat and the toggling surface of the supporting plate are in a staggered shape, forming a contact linkage state. When the toggling body of the supporting plate is toggled, the toggling surface of the caster seat will be pushed and rotated at the same time. The fitting surface and the abutting surface are tightly fitted or separated from each other, and then the caster is pushed out or retracted; Through the combination of the above-mentioned components, a trolley with conveniently folding casters can be provided.