CN218906796U

CN218906796U - Shock-absorbing castor

Info

Publication number: CN218906796U
Application number: CN202223611818.6U
Authority: CN
Inventors: 林隆波; 林一明
Original assignee: Foshan Houheng Hardware And Plastic Products Co ltd
Current assignee: Foshan Houheng Hardware And Plastic Products Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-04-25
Anticipated expiration: 2032-12-31

Abstract

The utility model relates to a shock-absorbing castor, which comprises a wheel, a movable seat, a spring, a mounting seat, a first bolt and a second bolt, wherein the movable seat is provided with a wheel accommodating cavity, the wheel is provided with a first shaft hole, the wheel is movably arranged in the wheel accommodating cavity, the first bolt passes through the wheel accommodating cavity and the first shaft hole to be locked on the movable seat, and the wheel rotates by taking the first bolt as a rotation center; realize the shock attenuation effect, if inertial force is greater than the elasticity of spring, the spring is deformation gradually, slows down inertial force effect in the spring deformation process, reaches the shock attenuation effect.

Description

Shock-absorbing castor

Technical Field

The utility model relates to a shock-absorbing castor.

Background

Casters are a generic term and include movable casters, fixed casters and movable casters with brakes. The movable castor is also called a universal wheel, and the structure of the movable castor allows 360 degrees of rotation; the fixed castor is also called a directional castor, which has no rotating structure and can not rotate. Generally, two casters are commonly used in combination, for example, a handcart is structured with two directional wheels at the front and two universal wheels at the rear, which are close to the pushing handrail.

The existing truckle does not have shock-absorbing function, when like the handcart removes to steep or unsmooth road surface, because of the truckle does not have shock-absorbing function, leads to the handcart to produce vibrations, leads to the goods of handcart to empty or damage easily.

Disclosure of Invention

The utility model aims to provide a damping caster with a damping effect and a simple structure.

The purpose of the utility model is realized in the following way:

the damping castor comprises a wheel, a movable seat, a spring, a mounting seat, a first bolt and a second bolt, wherein the movable seat is provided with a wheel accommodating cavity, the wheel is provided with a first shaft hole, the wheel is movably arranged in the wheel accommodating cavity, the first bolt passes through the wheel accommodating cavity and the first shaft hole to be locked on the movable seat, and the wheel rotates by taking the first bolt as a rotation center;

the mounting seat is provided with a movable cavity, the movable seat is provided with a second shaft hole, the movable seat is movably arranged in the movable cavity, the second bolt passes through the movable cavity and the second shaft hole to be locked on the mounting seat, and the movable seat rotates by taking the second bolt as a rotation center;

the movable seat is provided with a first supporting point towards the position of the movable cavity, the inner wall of the movable cavity is provided with a second supporting point towards the position of the movable seat, the spring is arranged in the movable cavity, the front end of the spring is sleeved on the first supporting point, the rear end of the spring is sleeved on the second supporting point, and the spring forms a reset mechanism of the movable seat;

the mounting seat side wall is provided with the spacing post towards the movable chamber, the movable seat is provided with the baffle, the baffle supports and leans on the spacing post, and the rotation scope of spacing post restriction movable seat.

The connecting plate of shock attenuation truckle is fixed in the handcart bottom, realize shock attenuation truckle installation, after the handcart loads full goods, the elastic force of spring is used for and under the gravity effect of heavy object, spacing post is hugged closely all the time to the baffle of movable seat, avoid the wheel not hard up, when the user promotes the handcart and removes, if the user suddenly brakes, the goods still moves forward under inertial action, the inertial force that the movable frame received the goods at this moment extrudees towards the spring direction, the inertial force only can move forward to need overcoming the elasticity of spring, consequently, the spring offsets most inertial force, realize the shock attenuation effect, if the inertial force is greater than the elasticity of spring, the spring is deformation gradually, the spring deformation in-process slows down inertial force, reach the shock attenuation effect.

The aim of the utility model can be also solved by adopting the following technical measures:

further, an anti-skid rubber sleeve is sleeved on the outer wall of the wheel. By the aid of the anti-skid rubber sleeve, anti-skid effect of the wheels is improved.

Further, a connecting plate for connecting the bearing objects is arranged at the top of the movable seat.

The beneficial effects of the utility model are as follows:

according to the utility model, the connecting plate of the shock-absorbing trundle is fixed at the bottom of the handcart, so that the shock-absorbing trundle is installed, when the handcart is loaded with cargoes, the baffle plate of the movable seat is always clung to the limit column under the action of the elastic force of the spring and the gravity of the heavy object, so that the looseness of the wheels is avoided, when a user pushes the handcart to move, if the user suddenly brakes and the cargoes still move forwards under the action of inertia, the movable frame is extruded towards the spring direction by the inertia force of the cargoes, the inertia force can move forwards only by overcoming the elastic force of the spring, therefore, the spring counteracts most of the inertia force, the shock-absorbing effect is realized, and if the inertia force is larger than the elastic force of the spring, the spring is gradually deformed, and the action of the inertia force is slowed down in the spring deformation process, so that the shock-absorbing effect is achieved.

Drawings

Fig. 1 is a schematic view of a shock absorbing caster.

Fig. 2 is another angular schematic view of the shock caster.

Fig. 3 is a top view of the shock absorbing caster.

Fig. 4 is a left side view of the shock caster.

Fig. 5 is a front view of the shock absorbing caster.

Fig. 6 is a cross-sectional view (force schematic) of fig. 3.

Fig. 7 is an exploded view of the shock absorbing caster.

Detailed Description

The utility model is further described below with reference to the accompanying drawings and examples:

the embodiment, as shown in fig. 1 to 7, is a shock-absorbing castor, which comprises a wheel 1, a movable seat 2, a spring 3, a mounting seat 4, a first bolt 5 and a second bolt 6, wherein the movable seat 2 is provided with a wheel accommodating cavity 21, the wheel 1 is provided with a first shaft hole 11, the wheel 1 is movably arranged in the wheel accommodating cavity 21, the first bolt 5 passes through the wheel accommodating cavity 21 and the first shaft hole 11 to be locked on the movable seat 2, and the wheel 1 rotates by taking the first bolt 5 as a rotation center;

the mounting seat 4 is provided with a movable cavity 41, the movable seat 2 is provided with a second shaft hole 22, the movable seat 2 is movably arranged in the movable cavity 41, the second bolt 6 passes through the movable cavity 41 and the second shaft hole 22 to be locked on the mounting seat 4, and the movable seat 2 rotates by taking the second bolt 6 as a rotation center;

the movable seat 2 is provided with a first supporting point 23 towards the movable cavity 41, the inner wall of the movable cavity 41 is provided with a second supporting point 42 towards the movable seat 2, the spring 3 is arranged in the movable cavity 41, the front end of the spring 3 is sleeved on the first supporting point 23, the rear end of the spring 3 is sleeved on the second supporting point 42, and the spring 3 forms a reset mechanism of the movable seat 2;

the side wall of the mounting seat 4 is provided with a limit post 43 facing the movable cavity 41, the movable seat 2 is provided with a baffle 24, the baffle 24 is abutted against the limit post 43, and the limit post 43 limits the rotation range of the movable seat 2.

Further, an anti-slip rubber sleeve 12 is sleeved on the outer wall of the wheel 1.

Further, a connection plate 25 for connecting the bearing is arranged at the top of the movable seat 2.

Working principle:

the connecting plate 25 of shock attenuation truckle is fixed in the handcart bottom, realize shock attenuation truckle installation, after the handcart loads full goods, the elasticity effect of spring 3 and the gravity effect of heavy object down, limit post 43 is hugged closely all the time to baffle 24 of movable seat 2, avoid wheel 1 not hard up, when the user promotes the handcart and removes, if the user suddenly brakes, the goods still moves forward under inertial action, the fly frame receives the inertial force of goods to the extrusion of spring 3 direction this moment, the inertial force only can move forward by overcoming the elasticity of spring 3, consequently, spring 3 offsets most inertial force, realize the shock attenuation effect, if the inertial force is greater than when spring 3's elasticity, spring 3 deforms gradually, the in-process of spring 3 deformation slows down inertial force, reach the shock attenuation effect.

Claims

1. The utility model provides a shock attenuation truckle, includes wheel (1), movable seat (2), spring (3), mount pad (4), first bolt (5) and second bolt (6), its characterized in that: the movable seat (2) is provided with a wheel accommodating cavity (21), the wheel (1) is provided with a first shaft hole (11), the wheel (1) is movably arranged in the wheel accommodating cavity (21), the first bolt (5) penetrates through the wheel accommodating cavity (21) and the first shaft hole (11) to be locked on the movable seat (2), and the wheel (1) rotates by taking the first bolt (5) as a rotation center;

the mounting seat (4) is provided with a movable cavity (41), the movable seat (2) is provided with a second shaft hole (22), the movable seat (2) is movably arranged in the movable cavity (41), the second bolt (6) penetrates through the movable cavity (41) and the second shaft hole (22) to be locked on the mounting seat (4), and the movable seat (2) rotates by taking the second bolt (6) as a rotation center;

the movable seat (2) is provided with a first supporting point (23) towards the position of the movable cavity (41), the inner wall of the movable cavity (41) is provided with a second supporting point (42) towards the position of the movable seat (2), the spring (3) is arranged in the movable cavity (41), the front end of the spring (3) is sleeved on the first supporting point (23), the rear end of the spring (3) is sleeved on the second supporting point (42), and the spring (3) forms a reset mechanism of the movable seat (2);

the side wall of the mounting seat (4) is provided with a limit column (43) facing the movable cavity (41), the movable seat (2) is provided with a baffle plate (24), the baffle plate (24) is abutted against the limit column (43), and the limit column (43) limits the rotation range of the movable seat (2).

2. The shock absorbing caster of claim 1, wherein: an anti-slip rubber sleeve (12) is sleeved on the outer wall of the wheel (1).

3. The shock absorbing caster of claim 1, wherein: the top of the movable seat (2) is provided with a connecting plate (25) for connecting the bearing object.