Trundle capable of being rapidly lifted and moved through treading

Abstract

The utility model relates to the technical field of trundles, in particular to a foot-stepping rapid lifting and moving trundle which comprises a lifting pipe base and a small lifting pipe inserted into the lifting pipe base and connected with the lifting pipe base in a sliding mode, and further comprises a lifting pedal rotationally connected with the lifting pipe base through a bolt A; one end of the rotary driving seat is hinged to the lifting pedal through a bolt C, and the other end of the rotary driving seat is hinged to the small lifting pipe through a bolt D; the fallback pedal is rotationally connected with the lifting pipe base through the bolt A; according to the foot-treading rapid lifting and moving trundle, the one-key lifting and one-key falling functions are achieved through the double-pedal design, a user can finish height adjustment and unlocking only by treading, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of caster technology, specifically a foot-operated quick-lift and movement caster. Background Technology

[0002] Currently, foot-operated quick-lift casters are mainly used to facilitate the convenient movement and height adjustment of objects. Their core structure typically includes a lifting tube base, a slidingly connected lifting tube, and a caster assembly. These casters must meet the functional requirements of rapid lifting, stable locking, and smooth lowering to adapt to the operational requirements of adjusting the height of objects in different application scenarios.

[0003] Existing lifting casters have a short lifting distance and are inconvenient to lower after being raised, requiring force to pull the locking plate. Therefore, in view of the above situation, there is an urgent need to develop a foot-operated quick-lifting caster to overcome the shortcomings in current practical applications. Utility Model Content

[0004] The purpose of this invention is to provide a foot-operated quick-lifting and moving caster to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A foot-operated quick-lifting and movable caster includes a lifting tube base and a lifting tube, wherein the lifting tube is inserted into the lifting tube base and slidably connected to the lifting tube base, and further includes:

[0007] The lifting pedal is rotatably connected to the lifting tube base via bolt A;

[0008] Rotate the drive seat, one end of which is hinged to the lifting pedal via bolt C, and the other end of which is hinged to the lifting tube via bolt D;

[0009] The return pedal is rotatably connected to the lifting tube base via bolt A;

[0010] The lifting tube base is provided with a lifting groove, and the lifting pedal is provided with a limiting groove.

[0011] A bolt B is fixedly installed on the return pedal. The bolt B is inserted into the limiting groove and can slide along the limiting groove.

[0012] The bolt D is inserted into the lifting groove and can slide along the lifting groove.

[0013] As a further embodiment of this utility model: the bottom of the lifting tube base is connected to casters, and the top of the lifting tube is fixedly connected to an object connecting seat.

[0014] As a further embodiment of this utility model: the lifting tube has multiple adjustment holes along the longitudinal direction on its wall, and the bolt D is inserted into one of the adjustment holes.

[0015] As a further embodiment of this utility model: the lowering pedal is disposed inside the lifting pedal, and the lowering pedal can push the bolt B to slide in the limiting groove when it rotates.

[0016] As a further embodiment of this utility model: the lifting pedal and the lowering pedal share the same bolt A as the rotation center axis.

[0017] As a further embodiment of this utility model: the object connecting seat and the lifting tube are fixedly connected as one unit by welding.

[0018] As a further embodiment of this utility model: the casters are fixedly connected to the bottom of the lifting tube base by screws.

[0019] As a further embodiment of this utility model, the adjustment holes are arranged longitudinally on the wall of the lifting tube.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. Improved ease of operation: The dual-pedal design (lifting pedal and lowering pedal) enables one-button lifting and one-button lowering. Users can simply use their feet to adjust the height and unlock the device, saving time and effort.

[0022] 2. Enhanced self-locking stability: After being lifted, a negative angle mechanical structure is formed, ensuring that the object connecting seat can still be stably locked under high load, preventing accidental fall;

[0023] 3. Flexible and adjustable height: The lifting tube has multiple sets of adjustment holes in the longitudinal direction. By adjusting the fixing position of bolt D, it can adapt to the needs of objects of different heights and expand the application scenarios.

[0024] 4. Compact and reliable structure: The lifting pedal and the lowering pedal share bolt A as the rotation center axis, reducing redundant parts; the lifting tube base is fixed to the caster screws, and the object connecting seat is welded to the lifting tube as a whole, improving the overall structural strength;

[0025] 5. Optimized return mechanism: The return pedal pushes bolt B to slide along the limit groove, and the linkage rotation of the drive seat releases the negative angle lock. The object can return smoothly by its own weight without the need for additional force.

[0026] 6. Precise control of motion trajectory: The lifting groove guides the vertical movement of bolt D, and the limiting groove constrains the sliding path of bolt B, ensuring a smooth and reliable lifting / lowering process and avoiding mechanical jamming. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the caster in the present invention, showing the rapid lifting and lowering of the caster by foot.

[0028] Figure 2 This is a three-dimensional structural diagram of the return pedal in this utility model.

[0029] Figure 3 This is a three-dimensional structural diagram of the lifting tube base in this utility model.

[0030] Figure 4 This is a three-dimensional structural diagram of the foot-operated rapid lifting and moving caster in the lifting state of this utility model.

[0031] Figure 5 This is a three-dimensional structural diagram of the lifting tube in this utility model.

[0032] Figure 6 This is a three-dimensional structural diagram of the lifting groove in this utility model.

[0033] In the diagram: 1-Lifting pedal, 2-Object connecting seat, 3-Returning pedal, 4-Rotation drive seat, 5-Lifting tube base, 6-Lifting tube, 7-Cast, 8-Limiting groove, 9-Lifting groove, 10-Adjusting hole, 11-Bolt A, 12-Bolt B, 13-Bolt C, 14-Bolt D. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0036] Please see Figures 1-6 This utility model provides a foot-operated quick-lifting movable caster, including a lifting tube base 5 and a lifting tube 6. The lifting tube 6 is inserted into the lifting tube base 5 and slidably connected to the lifting tube base 5. It also includes:

[0037] The lifting pedal 1 is rotatably connected to the lifting tube base 5 via bolt A11;

[0038] Rotate the drive seat 4, one end of which is hinged to the lifting pedal 1 via bolt C13, and the other end of which is hinged to the lifting tube 6 via bolt D14;

[0039] The return pedal 3 is rotatably connected to the lifting tube base 5 via the bolt A11;

[0040] The lifting tube base 5 is provided with a lifting groove 9, and the lifting pedal 1 is provided with a limiting groove 8;

[0041] A bolt B12 is fixedly installed on the return pedal 3. The bolt B12 is inserted into the limiting groove 8 and can slide along the limiting groove 8.

[0042] The bolt D14 is inserted into the lifting groove 9 and can slide along the lifting groove 9.

[0043] In one embodiment of this utility model, please refer to Figures 1-6 The bottom of the lifting tube base 5 is connected to casters 7, and the top of the lifting tube 6 is fixedly connected to an object connecting seat 2.

[0044] The lifting tube 6 has multiple adjustment holes 10 longitudinally formed on its tube wall, and the bolt D14 is inserted into one of the adjustment holes 10.

[0045] The lowering pedal 3 is located inside the lifting pedal 1, and the lowering pedal 3 can push the bolt B12 to slide in the limiting groove 8 when it rotates.

[0046] The lifting pedal 1 and the lowering pedal 3 share the bolt A11 as their rotation center axis. The object connecting seat 2 and the lifting tube 6 are fixedly connected as one unit by welding. The caster 7 is fixedly connected to the bottom of the lifting tube base 5 by screws. The adjustment holes 10 are arranged longitudinally on the tube wall of the lifting tube 6.

[0047] Therefore, this utility model features a foot-operated quick-lifting caster that utilizes the lever principle. It lifts the caster with a single foot press and lowers it by pressing again and releasing. Details are as follows:

[0048] like Figures 1-6 As shown, the object connecting seat 2 and the lifting tube 6 are welded together as a whole, and the lifting tube base 5 and the caster 7 are connected together by screws; the lifting tube 6 is inserted into the lifting tube base 5 and is slidably connected to the lifting tube base 5.

[0049] When the lifting pedal 1 is pressed (the lifting pedal 1 is rotatably connected to the lifting tube base 5 via bolt A11, which is fixed to the lifting tube base 5), it will rotate clockwise around bolt A11 as the pivot. At this time, bolt B12 slides in the groove of the limiting groove 8 (before rotation, bolt B12 is located at the end of the limiting groove 8, which is opened on the lifting pedal 1). Then, it drives bolt C13 to move to the right. The rotation drive seat 4 is hinged to the lifting pedal 1 via bolt C13. When bolt C13 moves to the right, it drives the rotation drive seat 4 to rotate counterclockwise around bolt D14, thereby pushing bolt D14 upward. This forces bolt D14 to move upward along the limiting groove 9 on the lifting tube base 5 (wherein, the limiting groove 9 is used to guide the movement of bolt D14). The trajectory of the guide bolt D14 moving upward), bolt D14 is fixedly installed on the lifting tube 6 and inserted into the limiting groove 9 (wherein, the lifting tube 6 has multiple adjustment holes 10 longitudinally, and bolt D14 is inserted into one of the adjustment holes 10. By changing the position of bolt D14 inserted into the adjustment hole 10, the height of the object connecting seat 2 can be adjusted to adapt to products of different heights). During the upward movement of bolt D14, it will carry the object connecting seat 2 and the lifting tube 6 upward until bolt B12 reaches the other end of the limiting groove 8. At this time, bolt C13 has formed a negative angle with bolt A11 and bolt D14 (that is, the angle between the lifting pedal 1 and the hinge bolt C13 of the rotating drive seat 4 is an obtuse angle). Therefore, no matter how much pressure is applied above the object connecting seat 2, it will not be pressed down.

[0050] When it is necessary to lower the object connecting seat 2, press the return pedal 3. At this time, the return pedal 3 will rotate clockwise around bolt A11 (the return pedal 3 is rotatably connected to bolt A11), pushing bolt B12 to move to the upper right following the limiting groove 8 (during the clockwise rotation of bolt B12, it will generate a leftward component force on the limiting groove 8), thereby driving bolt C13 to move to the left (that is, the rotating drive seat 4 will rotate clockwise around bolt D14). As long as the negative angle between bolt C13 and bolts A11 and D14 disappears, the object will fall back to the ground under its own weight, thus unlocking the device.

[0051] It should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "sliding," "rotating," "fixed," and "equipped" should be interpreted broadly. For example, they can refer to welded connections, bolted connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A foot-operated quick-lifting and movable caster, comprising a lifting tube base and a lifting tube, wherein the lifting tube is inserted into the lifting tube base and slidably connected to the lifting tube base, characterized in that, Also includes: The lifting pedal is rotatably connected to the lifting tube base via bolt A; Rotate the drive seat, one end of which is hinged to the lifting pedal via bolt C, and the other end of which is hinged to the lifting tube via bolt D; The return pedal is rotatably connected to the lifting tube base via bolt A; The lifting tube base is provided with a lifting groove, and the lifting pedal is provided with a limiting groove. A bolt B is fixedly installed on the return pedal. The bolt B is inserted into the limiting groove and can slide along the limiting groove. The bolt D is inserted into the lifting groove and can slide along the lifting groove.

2. The foot-operated quick-lifting and movable caster according to claim 1, characterized in that, The bottom of the lifting tube base is connected to casters, and the top of the lifting tube is fixedly connected to an object connecting seat.

3. The foot-operated quick-lifting and movable caster according to claim 1, characterized in that, The lifting tube has multiple adjustment holes along its longitudinal direction on its wall, and the bolt D is inserted into one of the adjustment holes.

4. The foot-operated quick-lifting and movable caster according to claim 1, characterized in that, The lowering pedal is located inside the lifting pedal, and when the lowering pedal is rotated, it can push the bolt B to slide within the limiting groove.

5. The foot-operated quick-lifting and movable caster according to claim 1, characterized in that, The lifting pedal and the lowering pedal share the same bolt A as the rotation center axis.

6. The foot-operated quick-lifting and movable caster according to claim 2, characterized in that, The object connecting seat and the lifting tube are fixedly connected as one unit by welding.

7. The foot-operated quick-lifting and movable caster according to claim 1, characterized in that, The casters are fixedly connected to the bottom of the lifting tube base by screws.

8. The foot-operated quick-lifting and movable caster according to claim 3, characterized in that, The adjustment holes are arranged longitudinally on the wall of the lifting tube.

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