CN113602042B

CN113602042B - Rubber castor structure

Info

Publication number: CN113602042B
Application number: CN202110927949.6A
Authority: CN
Inventors: 曾江波
Original assignee: Qingdao Weihai Metal Technology Co ltd
Current assignee: Qingdao Weihai Metal Technology Co ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2023-05-23
Anticipated expiration: 2041-08-13
Also published as: CN113602042A

Abstract

The invention discloses a rubber castor structure, and relates to the technical field of casters; specifically including truckle support, truckle mount pad, go up roof subassembly and roof subassembly down, install the roating seat between truckle support and the roof subassembly down, truckle mount pad fixed mounting is in the top of last roof subassembly, go up the both ends position between roof subassembly and the roof subassembly down and install preceding buffer unit and back buffer unit respectively, and preceding buffer unit and back buffer unit are adjustable structure. The rubber castor structure has wide applicability, the castor at the front end is firstly contacted with the obstacle and then influenced by the gravity of goods, the front buffer assembly buffers the obstacle once, the rear buffer assembly buffers the obstacle again by contacting the castor at the rear end with the obstacle, and the rear buffer assembly buffers the obstacle twice and swings around the top part of the support frame, so that the vibration and jolt of the goods at the upper end are reduced, the good protection effect is achieved, and the efficiency of transporting the goods is improved.

Description

Rubber castor structure

Technical Field

The invention relates to the technical field of casters, in particular to a rubber caster structure.

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 matched, for example, a handcart is structured by two directional wheels at the front, two universal wheels at the rear for pushing handrails, along with the development of industry, more and more equipment needs to be moved, the casters are widely applied all over the world, and the industries are almost free from the casters. With the continuous development of technology in modern times, equipment is more and more functional and high in utilization rate, and casters become indispensable components. The development of casters has become more specialized.

The simplest invention is often most important, the truckle just possesses this kind of characteristic, the rubber gyro wheel comprises bearing and the concentric rubber layer of parcel at bearing outer lane outer disc, the outer disc is roughness surface or has recess or arch, can save raw materials, reduce cost, and omit behind iron core or the aluminium core, the specification of bearing is corresponding to be increased, the bearing capacity is increased, life extension, the sound is little and have certain cushioning effect concurrently when the rubber truckle is used, it is more extensive to use, but current rubber truckle simple structure, to some threshold, barrier places such as elevator mouth adaptability is insufficient, obvious card dun phenomenon can appear in the elasticity of its surface when meetting right angle obstacle, cause upper end goods to slide forward and produce unstable phenomenon.

In view of the above, the present invention provides a rubber caster structure to solve the above-mentioned technical problems in the prior art.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides a rubber castor structure.

The invention provides a rubber castor structure which comprises a castor bracket, a castor mounting seat, an upper top plate assembly and a lower top plate assembly, wherein a rotating seat is arranged between the castor bracket and the lower top plate assembly, the castor mounting seat is fixedly arranged at the top of the upper top plate assembly, a front buffer assembly and a rear buffer assembly are respectively arranged at two ends between the upper top plate assembly and the lower top plate assembly, the front buffer assembly and the rear buffer assembly are of adjustable structures, a supporting frame is hinged in the middle between the upper top plate assembly and the lower top plate assembly, castor hubs are respectively rotatably arranged at two sides of the bottom of the castor bracket, castor rims are sleeved on the outer sides of the castor hubs, a plurality of anti-skid grooves are arranged on the outer sides of the castor rims, a brake assembly is arranged in the middle of the inside of the castor bracket, and two sides of the brake assembly are respectively matched with the two castor rims.

In the invention, preferably, the caster bracket comprises a bracket main body, both ends of the bracket main body are provided with caster mounting parts extending from an obtuse triangle, and caster shafts are arranged in the caster mounting parts.

Preferably, the brake assembly comprises a damping hydraulic rod arranged in the caster bracket, a pedal is arranged at the bottom of the damping hydraulic rod, both ends of the pedal are provided with grooves, and arc-shaped brake pads are arranged in the grooves.

In the invention, preferably, both sides of the bracket main body are provided with limiting sliding grooves with arc structures, and both ends of the top of the arc brake block are provided with limiting sliding bars.

In the invention, preferably, a plurality of lock posts are arranged on the inner cambered surface of the arc-shaped brake block, and the space between the lock posts is matched with the space between the anti-skid grooves.

In the invention, preferably, the lower top plate assembly comprises a plate body with a trapezoid structure, the top of the plate body is welded with a rotary mounting seat, the front end of the plate body is provided with two front bar-shaped slip rings, and the rear end of the plate body is provided with two rear bar-shaped slip rings.

In the invention, preferably, the front buffer assembly comprises a front buffer seat with a T-shaped structure, the top of the front buffer seat is provided with a front sliding column, the top of the front sliding column is in threaded connection with a front adjusting nut and a front elastic seat, the side surface of the front sliding column is provided with a front strip-shaped groove in sliding connection with the front elastic seat, the bottom of the front sliding column is welded with a front bracket, and a front spring is arranged between the front bracket and the front elastic seat.

In the invention, preferably, the rear buffer assembly comprises a rear buffer seat with a T-shaped structure, the top of the rear buffer seat is provided with a rear sliding column, the top of the rear sliding column is in threaded connection with a rear adjusting nut and a rear elastic seat, the side surface of the rear sliding column is provided with a rear strip-shaped groove in sliding connection with the rear elastic seat, the bottom of the rear sliding column is welded with a rear bracket, and a rear spring is arranged between the rear bracket and the rear elastic seat.

In the present invention, preferably, the front spring and the rear spring have the same height, and the stiffness coefficient of the front spring is between two and five times that of the rear spring.

Compared with the prior art, the invention provides a rubber castor structure, which has the following beneficial effects:

the rubber castor structure provided by the invention has wide applicability, two castor hubs and castor rims are respectively arranged at two ends of the bottom of the castor bracket, the front buffer component and the rear buffer component are respectively provided with the adjustable front buffer component and the adjustable rear buffer component, according to the load of the castor and the ground state of a using place, the angle between the upper top plate component and the lower top plate component can be adjusted through the front buffer component and the rear buffer component in application, the castor at the front end is lifted to form an acute angle structure with the ground, the castor at the front end directly spans the ground, the phenomenon of clamping when the castor passes through obstacles such as an elevator opening or a threshold is more convenient, the castor at the front end is effectively reduced, in addition, when the castor encounters bump after adjustment, the castor at the front end is contacted with the obstacles, the castor at the front buffer component is subjected to primary buffering, the castor at the rear end is contacted with the obstacles again, the rear buffer component is subjected to secondary buffering, the castor at the rear buffer component swings around the top part of the support frame, the vibration and jolt of the upper-end cargo are reduced, good protection effect is achieved, and the cargo transportation efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of a rubber caster structure according to the present invention;

fig. 2 is a schematic diagram of a caster frame with a rubber caster structure according to the present invention;

fig. 3 is a schematic view of a lower top plate assembly of a rubber caster structure according to the present invention;

FIG. 4 is a schematic diagram of a brake assembly with a rubber caster structure according to the present invention;

FIG. 5 is a schematic view of a front cushion assembly of a rubber caster structure according to the present invention;

fig. 6 is a schematic structural diagram of a rear cushion assembly with a rubber caster structure according to the present invention.

In the figure: the bicycle comprises a castor bracket 1, a bracket main body 101, a castor mounting part 102, a castor shaft 103, a limit chute 104, a rotary seat 2, a brake component 3, a pedal 301, a cambered brake block 302, a limit slide rod 303, a damping hydraulic rod 304, a limit chute 305, a lower top plate component 4, a plate 401, a rear bar-shaped slip ring 402, a rotary mounting seat 403, a front bar-shaped slip ring 404, a castor rim 5, a wheel hub 6, a skid-proof groove 7, a rear buffer component 8, a rear buffer seat 801, a rear bracket 802, a rear 803, a rear 804, a rear 805, a rear 806, a rear 807, a top plate component 9, a castor mounting seat 10, a supporting bracket 11, a front 12, a front 1201, a front 1202, a front 1203, a front 1204, a front 1205, a front 1206, a 1207 front 1207.

Detailed Description

Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the patent and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and are therefore not to be construed as limiting the patent.

In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.

Referring to fig. 1 to 6, a rubber caster structure comprises a caster bracket 1, a caster mount 10, an upper top plate assembly 9 and a lower top plate assembly 4, a rotating seat 2 is installed between the caster bracket 1 and the lower top plate assembly 4, the caster mount 10 is fixedly installed at the top of the upper top plate assembly 9, a front buffer assembly 12 and a rear buffer assembly 8 are respectively installed at two ends between the upper top plate assembly 9 and the lower top plate assembly 4, the front buffer assembly 12 and the rear buffer assembly 8 are respectively of adjustable structures, a supporting frame 11 is hinged at the middle part between the upper top plate assembly 9 and the lower top plate assembly 4, caster hubs 6 are respectively rotatably installed at two sides of the bottom of the caster bracket 1, caster rims 5 are sleeved at the outer sides of the caster hubs 6, a plurality of anti-sliding grooves 7 are arranged at the outer sides of the caster rims 5, a brake assembly 3 is installed in the middle of the inside of the caster bracket 1, the two sides of the brake component 3 are respectively matched with the two caster wheel rims 5, the rubber caster wheel structure provided by the invention has wide applicability, two caster wheel hubs 6 and the caster wheel rims 5 are respectively arranged at the two ends of the bottom of the caster wheel bracket 1, the front buffer component 12 and the rear buffer component 8 are provided with the adjustable front buffer component 12 and the rear buffer component 8, according to the load of the caster wheel and the ground state of a using place, the angle between the upper top plate component 9 and the lower top plate component 4 can be adjusted through the front buffer component 12 and the rear buffer component 8 when in use, the caster wheel at the front end is lifted up to form an acute angle structure with the ground, the caster wheel at the front end of a right angle obstacle directly spans over, the phenomenon of blocking when the caster wheel passes through obstacles such as an elevator opening or a threshold is more convenient, the phenomenon of blocking when the caster wheel encounters jolt after the adjustment is finished, the truckle of front end receives goods gravity influence after earlier contacting with the barrier, and preceding buffer unit 12 carries out once buffering to it, contacts with the barrier again through the truckle of rear end, and rear buffer unit 8 carries out secondary buffering to it, and twice buffering swings around support frame 11 top position, reduces the vibration and the jolt to upper end goods, plays good guard action, improves the efficiency of goods transportation.

As a still further scheme in the invention, the caster bracket 1 comprises a bracket main body 101, both ends of the bracket main body 101 are provided with caster mounting parts 102 extending in an obtuse triangle, caster shafts 103 are arranged in the caster mounting parts 102, both ends of the bracket main body 101 are provided with caster mounting parts 102 extending in an obtuse triangle, and the distance between the front-end caster mounting parts 102 and the rotating seat 2 is smaller than the distance between the rear-end caster mounting parts, so that the front-end caster mounting parts and the rear-end caster mounting parts are sequentially stressed simultaneously, the passing convenience and smoothness are improved, and secondly, when the front-end caster mounting parts 102 are lifted, the casters positioned at the front end can rapidly move downwards when being vibrated, the load of the rear-end casters is reduced, and the service life of the casters is prolonged.

As a still further scheme in the invention, the brake component 3 comprises a damping hydraulic rod 304 arranged in the caster bracket 1, the bottom of the damping hydraulic rod 304 is provided with a pedal 301, both ends of the pedal 301 are provided with a notch, the inside of the notch is provided with an arc brake block 302, when the caster needs to be stopped, the arc brake block 302 at both ends is driven to descend by downwards moving the pedal 301, so that the intrados of the arc brake block contacts with the caster rim 5 to achieve the purpose of braking, and the pedal 301 is moved upwards when the caster needs to be moved, so that the operation is simple and convenient.

As a still further scheme in the invention, limiting sliding grooves 104 with arc structures are arranged on two sides of the bracket main body 101, limiting sliding rods 303 are arranged on two ends of the top of the arc-shaped brake pad 302, the upper end of the arc-shaped brake pad 302 moves in a limiting position of the limiting sliding grooves 104 through the limiting sliding rods 303, and when the arc-shaped brake pad 302 moves downwards, the upper end is locked under the action of the limiting sliding rods 303 and the limiting sliding grooves 104, so that the braking stability of the caster is improved.

As a further scheme in the invention, a plurality of lock posts 305 are arranged on the inner cambered surface of the arc-shaped brake block 302, the intervals between the lock posts 305 are matched with the intervals between the anti-skid grooves 7, when the arc-shaped brake block 302 moves downwards, the lock posts 305 are embedded into the anti-skid grooves 7, the casters at the two ends are locked simultaneously, the phenomenon of rotation under the action of external force is avoided, the braking stability of the casters is effectively improved, friction damage to the surfaces of the casters is avoided, and the service life of the casters is prolonged.

As a still further scheme in the invention, the lower top plate assembly 4 comprises a plate body 401 with a trapezoid structure, a rotating mounting seat 403 is welded at the top of the plate body 401, two front bar-shaped sliding rings 404 are arranged at the front end of the plate body 401, two rear bar-shaped sliding rings 402 are arranged at the rear end of the plate body 401, the bottom ends of the front buffer assembly 12 and the rear buffer assembly 8 are respectively arranged in the bar-shaped sliding rings at the front end and the rear end of the lower top plate assembly 4, the lower top plate assembly 4 can rotate around the joint of the supporting frame 11 in an adjusting stage, and when being blocked, the front and rear movement allowance of the front buffer assembly 12 and the rear buffer assembly 8 can be used for effectively buffering and damping, so that the protection effect on upper-end equipment or goods is improved.

As a still further scheme in the invention, the front buffer assembly 12 comprises a front buffer seat 1201 with a T-shaped structure, a front sliding column 1203 is arranged at the top of the front buffer seat 1201, a front adjusting nut 1206 and a front elastic seat 1205 are connected to the top of the front sliding column 1203 in a threaded manner, a front bar-shaped groove 1207 which is connected with the front elastic seat 1205 in a sliding manner is arranged on the side surface of the front sliding column 1203, a front bracket 1202 is welded at the bottom of the front sliding column 1203, a front spring 1204 is arranged between the front bracket 1202 and the front elastic seat 1205, the upper top plate assembly 9 is clamped between the front adjusting nut 1206 and the front elastic seat 1205 when in use, the tightness of the front spring 1204 can be adjusted by rotating the front adjusting nut 1206, and then the space between the front bracket 1202 and the front elastic seat 1205 in the front buffer assembly 12 is adjusted, one end of the caster is lifted, so that the caster has an inclination effect, and the front elastic seat 1205 moves up and down under the support of the front spring 1204 when in vibration, so that a good buffer effect is achieved, a simple structure and convenient adjustment.

As a still further scheme in the invention, the rear buffer assembly 8 comprises a rear buffer seat 801 with a T-shaped structure, the top of the rear buffer seat 801 is provided with a rear slide column 803, the top of the rear slide column 803 is in threaded connection with a rear adjusting nut 806 and a rear elastic seat 805, the side surface of the rear slide column 803 is provided with a rear bar-shaped groove 807 in sliding connection with the rear elastic seat 805, the bottom of the rear slide column 803 is welded with a rear bracket 802, a rear spring 804 is arranged between the rear bracket 802 and the rear elastic seat 805, the upper top plate assembly 9 is clamped between the rear adjusting nut 806 and the rear elastic seat 805 when in application, the tightness of the rear spring 804 can be adjusted by rotating the rear adjusting nut 806, and then the interval between the rear bracket 802 and the rear elastic seat 805 in the rear buffer assembly 8 is adjusted, one end of a caster is lifted, so that the caster has an inclination effect, the rear elastic seat 805 moves up and down under the support of the rear spring 804 when in vibration, so that a good buffer effect is achieved, the structure is simple, and adjustment is convenient.

As a still further proposal in the invention, the front spring 1204 and the rear spring 804 have the same height, the stiffness coefficient of the front spring 1204 is between two and five times of that of the rear spring 804, the load can be shared when the novel bicycle is used in a flat environment, under the condition of having a step obstacle, the front truckle is supported and then is mainly supported by the rear truckle and the rear buffer assembly 8, meanwhile, the front and rear stiffness coefficients are different, the dual different buffer effects can be realized, and the adaptation effect of the truckle to the complex environment is improved.

When the novel caster wheel is used, two caster wheel hubs 6 and caster wheel rims 5 are respectively arranged at two ends of the bottom of the caster wheel bracket 1, the front buffer component 12 and the rear buffer component 8 are respectively provided with the adjustable front buffer component 12 and the rear buffer component 8, according to the load of the caster wheel and the ground state of a using place, the angle between the upper top plate component 9 and the lower top plate component 4 can be adjusted through the front buffer component 12 and the rear buffer component 8 when the novel caster wheel is applied, the front caster wheel is lifted to form an acute angle structure with the ground, the casters at the front end of the novel caster wheel are directly crossed with the ground, the novel caster wheel is more convenient when passing through obstacles such as an elevator opening or a threshold, the phenomenon of blocking when the casters pass through is effectively reduced, and when the casters at the front end meet bump after the adjustment, the casters are contacted with the obstacles, the front buffer component 12 buffers the casters once, the casters at the rear end of the novel caster wheel are contacted with the obstacles again, the rear buffer component 8 buffers the casters twice, and swings around the top part of the supporting frame 11, vibration and jolt of the upper end of the novel caster wheel, good transportation efficiency is achieved.

The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.

Claims

1. The utility model provides a rubber castor structure, includes castor support (1), castor mount pad (10), goes up roof subassembly (9) and roof subassembly (4) down, install roating seat (2) between castor support (1) and roof subassembly (4) down, castor mount pad (10) fixed mounting is in the top of roof subassembly (9) down, a serial communication port, go up both ends position between roof subassembly (9) and roof subassembly (4) down and install preceding buffer unit (12) and back buffer unit (8) respectively, and preceding buffer unit (12) and back buffer unit (8) are adjustable structure, the middle part between roof subassembly (9) and the roof subassembly (4) down articulates there is support frame (11), castor hub (6) are installed in the bottom both sides of castor support (1) rotation respectively, and castor hub (5) have been cup jointed in the outside of castor hub (5), the outside of castor hub (5) is provided with a plurality of anti-skidding groove (7), brake subassembly (3) are installed to the inside middle of castor support (1), and brake subassembly (3) both sides are the wheel hub (5) are two looks adaptation respectively;

the caster bracket (1) comprises a bracket main body (101), both ends of the bracket main body (101) are provided with caster mounting parts (102) extending in an obtuse triangle shape, and caster shafts (103) are arranged in the caster mounting parts (102);

the brake assembly (3) comprises a damping hydraulic rod (304) arranged in the caster bracket (1), a pedal (301) is arranged at the bottom of the damping hydraulic rod (304), both ends of the pedal (301) are provided with grooves, and arc-shaped brake blocks (302) are arranged in the grooves;

limiting sliding grooves (104) with arc structures are formed in two sides of the support main body (101), and limiting sliding rods (303) are arranged at two ends of the top of the arc-shaped brake block (302);

the inner cambered surface of the arc-shaped brake block (302) is provided with a plurality of lock posts (305), and the space between the lock posts (305) is matched with the space between the anti-skid grooves (7);

the lower top plate assembly (4) comprises a plate body (401) with a trapezoid structure, a rotary mounting seat (403) is welded at the top of the plate body (401), two front bar-shaped slip rings (404) are arranged at the front end of the plate body (401), and two rear bar-shaped slip rings (402) are arranged at the rear end of the plate body (401);

the front buffer assembly (12) comprises a front buffer seat (1201) with a T-shaped structure, a front sliding column (1203) is arranged at the top of the front buffer seat (1201), a front adjusting nut (1206) and a front elastic seat (1205) are connected to the top of the front sliding column (1203) in a threaded mode, a front strip-shaped groove (1207) which is in sliding connection with the front elastic seat (1205) is arranged on the side face of the front sliding column (1203), a front bracket (1202) is welded at the bottom of the front sliding column (1203), and a front spring (1204) is arranged between the front bracket (1202) and the front elastic seat (1205);

rear buffer assembly (8) are including rear buffer seat (801) of T type structure, and the top of rear buffer seat (801) is provided with back post (803), the top spiro union of back post (803) has back adjusting nut (806) and back elastic seat (805), and the side of back post (803) be provided with back elastic seat (805) sliding connection's back bar groove (807), the bottom welding of back post (803) has back bracket (802), installs back spring (804) between back bracket (802) and back elastic seat (805).

2. A rubber castor structure according to claim 1, characterized in that the front (1204) and rear (804) springs are of the same height and that the stiffness coefficient of the front spring (1204) is between two and five times the stiffness coefficient of the rear spring (804).