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CN-224224836-U - Concealed castor

CN224224836UCN 224224836 UCN224224836 UCN 224224836UCN-224224836-U

Abstract

The utility model belongs to the technical field of lifting casters, and particularly relates to a hidden caster, which comprises a bottom frame, four casters, a bedstead, a frame, a lifting frame and a frame, wherein the bottom frame is of a frame structure, the four casters are respectively arranged at four corners of the bottom frame in a sliding fit with the bottom frame in the height direction, the bedstead is arranged on the bottom frame in a lifting mode, the bottom of the bedstead can be contacted with the tops of the casters, the bedstead can drive the casters to slide downwards relative to the bottom frame when being lowered, the bottoms of the casters can extend out of the bottom frame, and the casters are separated from the bedstead when being raised and can slide upwards relative to the bottom frame. The utility model has the advantages that when the carrying is needed, the bottom of the trundle extends out of the chassis, the chassis is stably supported, the movement is convenient, when the carrying is not needed, the trundle can be hidden in the chassis, the chassis is more stable, and the beautiful appearance is not influenced.

Inventors

  • ZENG GUOHONG
  • WU PENGFEI

Assignees

  • 惠州富乐士智能家居有限公司

Dates

Publication Date
20260512
Application Date
20250509

Claims (7)

  1. 1. A hidden caster, comprising: the underframe (1) is of a frame structure; Four casters (2) which are respectively and slidably arranged at four corners of the underframe (1) and are in sliding fit with the underframe (1) in the height direction; The bed frame (3) is arranged on the underframe (1) in a lifting manner, and the bottom of the bed frame (3) can be contacted with the top of the caster wheel (2); When the bed frame (3) descends, the bed frame (3) can drive the casters (2) to slide downwards relative to the bottom frame (1), the bottoms of the casters (2) can extend out of the bottom frame (1), and when the bed frame (3) ascends, the casters (2) are separated from the bed frame (3) and can slide upwards relative to the bottom frame (1) into the bottom frame (1).
  2. 2. A hidden caster as defined in claim 1, further comprising: The two rotating frames (4) are symmetrically distributed in the left-right direction and are rotatably arranged on the underframe (1), the bottoms of the rotating frames (4) are rotatably connected with the underframe (1), the tops of the rotating frames (4) are slidably connected with the bedstead (3), and the rotating frames (4) are transversely slidably matched with the bedstead (3); The support frame (5), the bottom of support frame (5) rotates the center department of connecting at rotating turret (4), the top of support frame (5) rotates the outside of connecting at bedstead (3).
  3. 3. A hiding castor according to claim 1, characterized in that the chassis (1) comprises: The sleeve (6), sleeve (6) fixed mounting is in the four corners department of chassis (1), truckle (2) cover is established in sleeve (6), sleeve (6) and truckle (2) are in the direction of height sliding fit.
  4. 4. A hidden castor according to claim 3, wherein the top of the castor (2) is fixedly provided with a castor rod (2-1), the castor (2) is slidably engaged with the sleeve (6) in the height direction, and a spring (7) is provided between the castor rod (2-1) and the sleeve (6).
  5. 5. A hidden castor according to claim 4, characterized in that the top end of the castor rod (2-1) is sleeved with a spacer (2-3) which can be supported by a sleeve (6), and the top of the spacer (2-3) is provided with a nut (2-2) which is screwed on the top end of the castor rod (2-1).
  6. 6. A hidden castor according to claim 5, characterized in that the sleeve (6) is internally provided with a baffle (6-1) with a cross-section that results in a "T", the castor rod (2-1) is threaded in the centre of the baffle (6-1), and the top end of the middle part of the baffle (6-1) can be supported on the pad (2-3).
  7. 7. A hidden castor as claimed in claim 3, characterised in that the bottom end of the sleeve (6) is provided with a washer (6-2).

Description

Concealed castor Technical Field The utility model relates to the technical field of lifting casters, in particular to a hidden caster. Background When supporting heavy objects or objects with larger sizes, the conventional frame is usually provided with casters at the bottom for convenient movement and transportation, but after the casters are arranged, the casters are difficult to stabilize when not required to support heavy objects or transport, and are not attractive enough. Disclosure of utility model In view of the above, the present utility model provides a hidden caster that solves or at least alleviates the above-identified problems of the prior art. To achieve the foregoing objects, the present utility model provides a hidden caster comprising: The underframe is of a frame structure; Four casters which are respectively arranged at four corners of the underframe in a sliding way and are matched with the underframe in the height direction in a sliding way; The bed frame is arranged on the underframe in a lifting manner, and the bottom of the bed frame can be contacted with the tops of the casters; When the bed frame descends, the bed frame can drive the casters to slide downwards relative to the bottom frame, the bottoms of the casters can extend out of the bottom frame, and when the bed frame ascends, the casters are separated from the bed frame and can slide upwards relative to the bottom frame into the bottom frame. In a hidden caster as described above, optionally, the hidden caster further comprises: The two rotating frames are symmetrically arranged on the underframe in a rotating manner in the left-right direction, the bottoms of the rotating frames are rotationally connected with the underframe, the tops of the rotating frames are in sliding connection with the bedstead, and the rotating frames are in transverse sliding fit with the bedstead; The bottom of the support frame is rotationally connected to the center of the rotating frame, and the top of the support frame is rotationally connected to the outer side of the bedstead. In one hidden castor as described above, optionally, the chassis includes: The sleeve is fixedly arranged at four corners of the underframe, the trundles are sleeved in the sleeve, and the sleeve is in sliding fit with the trundles in the height direction. In one hidden castor as described above, optionally, a castor rod is fixedly arranged at the top of the castor, the castor screw is slidably matched with the sleeve in the height direction, and a spring is arranged between the castor rod and the sleeve. In one hidden castor as described above, optionally, the top end of the castor rod is sleeved with a spacer that can be supported by a sleeve, and the top of the spacer is provided with a nut that is screwed on the top end of the castor rod. In one hidden castor as described above, optionally, a baffle plate with a T-shaped cross section is disposed inside the sleeve, the castor rod is inserted through the center of the baffle plate, and the top end of the middle of the baffle plate can be supported on the gasket. In one hidden caster as described above, optionally, a gasket is sleeved on the bottom end of the sleeve. According to the hidden castor, the bed frame is adopted to press down the castor, so that the bottom of the castor extends out of the underframe, the underframe is convenient to move, the bed frame is separated from the castor, the castor is hidden in the underframe, the underframe is more stable, and the attractive effect is not affected. Drawings The present disclosure will become more apparent with reference to the accompanying drawings. It is to be understood that these drawings are solely for purposes of illustration and are not intended as a definition of the limits of the utility model. In the figure: Fig. 1 is a schematic view of the whole structure of the caster of the present utility model when the caster is extended. Figure 2 is a side view of the overall structure of the caster of the present utility model with the caster extended. Fig. 3 is a diagonally downward view of the caster of the present utility model when extended. Fig. 4 is a top view of the overall structure of the caster of the present utility model when extended. Figure 5 is a schematic view of the utility model with the sleeve cut away with the caster extended. Fig. 6 is a split schematic of fig. 5 according to the present utility model. The device comprises the following components of 1, a chassis, 2, casters, 2-1, caster rods, 2-2, nuts, 2-3, gaskets, 3, a bedstead, 4, a rotating frame, 5, a supporting frame, 6, a sleeve, 6-1, a baffle, 6-2, washers, 7 and a spring. Detailed Description The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can