Movable underframe and massage chair

By combining rotating and lifting casters and rollers, the problem of difficult movement of massage chairs is solved, achieving both stability in a fixed position and ease of movement.

CN224219764UActive Publication Date: 2026-05-12NINGBO ZHOUQI HEALTH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO ZHOUQI HEALTH TECH CO LTD
Filing Date
2025-06-25
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing massage chairs are bulky and difficult to move, making them hard for users to push easily.

Method used

Featuring a rotating and lifting caster design, the casters are driven by an electric push rod to be stored above or raised below. Combined with the arrangement of rollers and foot pads, this allows for stable placement and convenient movement of the massage chair.

Benefits of technology

When in a fixed position, the casters are folded back to ensure the massage chair is stable. When it needs to be moved, the casters are raised to make it easy for users to push the massage chair.

✦ Generated by Eureka AI based on patent content.

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Abstract

According to the technical scheme, the movable bottom frame is characterized by comprising a frame body, and is characterized by comprising a rotating pipe rotationally connected to the frame body; the trundles are arranged on the rotating pipe; the power piece is used for driving the rotating pipe to rotate so as to drive the trundles to synchronously and vertically rotate; when the trundles rotate to the upper part, the trundles are separated from the ground; when the trundles rotate to the lower part, the trundles support the frame body; a massage chair comprises a movable bottom frame, and a seat body for massage is installed above the movable bottom frame.
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Description

Technical Field

[0001] This utility model relates to a movable base for massage chairs and a massage chair. Background Technology

[0002] Massage chairs are relatively large, and anti-slip blocks are installed on the base of the massage chair to reduce movement when it contacts the ground. The purpose of this is to improve the stability of the massage chair on the ground.

[0003] However, when the massage chair needs to be moved, especially for home users, it is very difficult for users to push it directly due to its large size. Utility Model Content

[0004] The primary objective of this invention is to provide a mobile base that allows users to easily push the massage chair with minimal effort.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A mobile base frame includes a frame body, comprising: a rotating tube rotatably connected to the frame body; casters mounted on the rotating tube; a power component that drives the rotating tube to rotate so as to drive the casters to rotate vertically in sync; when the casters rotate to the top, the casters separate from the ground; when the casters rotate to the bottom, the casters support the frame body.

[0007] Preferably, the power component is an electric push rod, with one end of the electric push rod hinged to the frame and the other end hinged to the rotating tube.

[0008] Preferably, the number of casters on the swivel tube is at least two.

[0009] Preferably, the frame is equipped with casters and foot pads; when the casters are on top, the foot pads support the frame, and the casters and the ground are suspended in the air; when the casters are on the bottom, the foot pads are suspended in the air, and the casters and rollers tilt to support the bracket.

[0010] Preferably, there are two sets of foot pads; along the length of the frame, one set of foot pads and casters are arranged in sequence, and the other set of foot pads and rollers are arranged in sequence.

[0011] Preferably, the foot pad has a countersunk hole, and a first screw fixed to the frame is installed in the countersunk hole.

[0012] Preferably, a dovetail block is fixed to the lower surface of the frame, and a dovetail groove is provided on the upper surface of the foot pad. The dovetail block is inserted into the dovetail groove to fix the foot pad and the frame. Furthermore, sealing plates that block the ends of the dovetail grooves are fixed to the left and right sides of the frame by second screws.

[0013] The second objective of this invention is to provide a movable base frame that allows users to easily push the massage chair.

[0014] A massage chair includes the aforementioned movable base, with a massage seat mounted on top of the movable base.

[0015] In summary, this utility model has at least one of the following beneficial effects:

[0016] Featuring a rotating and lifting caster design, the casters retract upwards when the massage chair is in a fixed position, allowing for stable massage operation; when the massage chair needs to be moved, the casters downwards to support the chair, making it easy for users to push and massage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the casters being retracted upwards on the frame in the embodiment;

[0018] Figure 2 This is a schematic diagram of the casters supporting the frame downwards in the embodiment;

[0019] Figure 3 This is a schematic diagram illustrating the change in frame position when the casters are folded up and supported in the embodiment.

[0020] Figure 4 This is a schematic diagram of the foot pad installation in the embodiment;

[0021] Figure 5 This is a schematic diagram of the foot pads being installed on the frame in the embodiment;

[0022] Figure 6 This is a schematic diagram of the foot pad structure in the embodiment;

[0023] Figure 7 This is a schematic diagram of the foot pad being clamped by sealing plates on both sides in the embodiment;

[0024] Figure 8 This is a schematic diagram of the massage chair mounted on the frame in the embodiment.

[0025] In the picture:

[0026] 1. Frame;

[0027] 2. Rotary tube; 21. Casters;

[0028] 3. Electric linear actuator;

[0029] 4. Rollers;

[0030] 5. Foot pad; 51. Countersunk hole; 52. First screw;

[0031] 6. Base body;

[0032] 71. Dovetail groove; 72. Dovetail block; 73. Second screw; 74. Sealing plate. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings.

[0034] Example 1, a mobile base frame, referring to Figure 1 It includes a frame 1, which is a metal pipe frame structure. The frame 1 includes two long metal main pipes arranged in parallel, and two short rods are welded to the front and rear ends of the two main pipes for fixation.

[0035] A rotating seat is fixed to the upper surface of the main body, and the rotating seat is located in the middle of the main body;

[0036] Two rotating seats are equipped with rotating tubes 2, and the two ends of the rotating tubes 2 are rotatably connected to the rotating seats through shafts; and a retaining ring can be installed on the shaft to reduce the sliding of the shaft between the two main tubes;

[0037] Rotating tube 2 is also a rectangular metal tube;

[0038] The rotating tube 2 is fitted with two casters 21 by the first screw 52; the casters 21 are swivel wheels.

[0039] On the other side of the rotating tube 2, that is, the side opposite to the caster 21, a power component is hinged via an ear seat;

[0040] The power component is an electric push rod 3. One end of the electric push rod 3 is hinged to the lug of the frame 1, and the other end of the electric push rod 3 is hinged to the lug of the rotating tube 2.

[0041] Driven by the electric push rod 3, the rotating tube 2 rotates and can drive the caster 21 to rotate vertically in sync, specifically:

[0042] When the electric push rod 3 extends or retracts, the caster 21 is horizontally positioned and separated from the ground.

[0043] When the electric push rod 3 extends, the caster 21 is set vertically downwards, and the caster 21 supports the frame 1, as shown in the details. Figure 2 show.

[0044] When the electric push rod 3 extends to retract, the rotating tube 2 rotates by 90 degrees.

[0045] like Figure 1 The frame 1 is equipped with rollers 4 and foot pads 5; there are two sets of foot pads 5; along the length of the frame 1, one set of foot pads 5, casters 21, and another set of foot pads 5 and rollers 4 are arranged in sequence.

[0046] like Figure 4 The foot pad 5 has an installation structure with a countersunk hole 51, and a first screw 52 fixed to the frame 1 is installed in the countersunk hole 51.

[0047] The working principle is: Figure 3 As shown,

[0048] When the caster 21 is on top, the four foot pads 5 support the frame 1, and the frame 1 can be placed stably on the ground;

[0049] When the caster 21 is at the bottom, the caster 21 and the roller 4 work together. The caster 21 lifts the center of the frame 1, while the roller 4 tilts downward. The combination of the roller 4 and the caster 21 supports the entire frame 1, making it easier to move the frame 1. Its advantage is that by using a set of lifting casters 21 and another set of driven rollers 4, the purpose of tilting and lifting the entire frame 1 can be achieved.

[0050] Example 2, a mobile base frame, differs from Example 1 in that, referring to... Figures 5-7 A dovetail block 72 is fixed to the lower surface of the frame 1, and a dovetail groove 71 is provided on the upper surface of the foot pad 5. The dovetail block 72 is inserted into the dovetail groove 71 to fix the foot pad 5 and the frame 1. Furthermore, sealing plates 74 are fixed to the left and right sides of the frame 1 by second screws 73. The sealing plates 74 block both ends of the dovetail groove 71 to prevent the foot pad 5 from slipping. The advantage of this design is that the foot pad 5 can be removed and installed from the side of the frame 1 by utilizing the ability of the frame 1 to be lifted, which makes it easy to replace the foot pad 5.

[0051] Example 3, a massage chair, referring to Figure 8 The movable base frame, as described in Embodiment 1 or Embodiment 2, is fixedly connected to the frame 1 of the movable base frame and the frame 1 of the seat 6. The seat 6 is used for the user to lie down and sit. A massage structure is installed inside the seat. The installation of a massage structure inside the seat 6 of the massage chair is prior art, so it will not be described in detail in this case. The massage chair is connected to a power source, which is used to power the power components.

[0052] When the caster 21 pushes downward, the caster 21 and the roller 4 form a ground plane, allowing the foot pad 5 to lift off the ground. The massage chair can then easily roll on the ground, which can be used to move the massage chair.

[0053] When caster 21 is placed horizontally with the back facing upwards, it can be used to stabilize the massage chair.

[0054] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A mobile base frame, comprising a frame body (1), characterized in that, include: Rotary tube (2) connected to frame (1); Casters (21) are installed on the rotating tube (2); A power component that drives the rotating tube (2) to rotate so as to drive the caster (21) to rotate vertically in sync; When the caster (21) rotates to the top, the caster (21) separates from the ground; When the caster (21) rotates to the bottom, the caster (21) supports the frame (1).

2. The mobile base frame according to claim 1, characterized in that: The power component is an electric push rod (3), one end of which is hinged to the frame (1), and the other end of which is hinged to the rotating tube (2).

3. The mobile base frame according to claim 1, characterized in that: There are at least two casters (21) on the swivel tube (2).

4. The mobile base frame according to claim 1, characterized in that: The frame (1) is equipped with casters (4) and foot pads (5); When the caster (21) is on top, the foot pad (5) supports the frame (1), and the roller (4) is suspended from the ground; When the caster (21) is below, the foot pad (5) is suspended in the air, and the caster (21) and roller (4) tilt to support the bracket.

5. The mobile base frame according to claim 4, characterized in that: There are two sets of foot pads (5); Along the length of the frame (1), a set of foot pads (5), casters (21), another set of foot pads (5) and rollers (4) are arranged in sequence.

6. The mobile base frame according to claim 4, characterized in that: The foot pad (5) has a countersunk hole (51), and a first screw (52) fixed to the frame (1) is installed in the countersunk hole (51).

7. The mobile base frame according to claim 5, characterized in that: A dovetail block (72) is fixed on the lower surface of the frame (1), and a dovetail groove (71) is provided on the upper surface of the foot pad (5). The dovetail block (72) is inserted into the dovetail groove (71) to fix the foot pad (5) and the frame (1). Furthermore, the left and right sides of the frame (1) are fixed with sealing plates (74) that block the ends of the dovetail groove (71) by second screws (73).

8. A massage chair, characterized by: Includes the movable base frame as described in claim 1, with a massage seat (6) mounted on top of the movable base frame.