WO2023087545A1

WO2023087545A1 - Swing device

Info

Publication number: WO2023087545A1
Application number: PCT/CN2022/074071
Authority: WO
Inventors: 陈冰辉
Original assignee: 福建九兆智能科技有限公司
Priority date: 2021-11-18
Filing date: 2022-01-26
Publication date: 2023-05-25
Also published as: CN216454178U

Abstract

A swing device comprises an upper pressing plate (1), a supporting spring (3), a lower pressing plate (2) and an abutting piece. The two ends of the supporting spring (3) abut against the upper pressing plate (1) and the lower pressing plate (2) respectively. The center of the upper pressing plate (1) is provided with a through hole (11) and a depressed shaft cavity (12) which passes through the center. The abutting piece is a joint bearing (4). The rod end (41) of the joint bearing (4) is locked onto the lower pressing plate (2) by a bolt (5), and the bearing end of the joint bearing (4) is penetrated by a bearing end (42). The short shaft (43) abuts against the depressed shaft cavity (12) to constrain the swing of the upper pressing plate (1). By using the joint bearing (4) as an abutting piece for linking the upper pressing plate (1) and the lower pressing plate (2), the swing device has the characteristics of a simple structure, simplicity in machining and assembly, smooth and wear-resistant swing and reliable angle limiting, can be used in combination with a swing stool, and significantly simplifies the assembly and machining process of a product.

Description

a swinging device

Technical field:

The utility model belongs to the field of furniture, in particular to a rocking device, which can be tilted, rocked and reset in any horizontal direction.

Background technique:

Patent application number 201780004064.0 discloses a tiltable stool, which is a chair with tilting parts near the ground and the seat surface can tilt in any direction. The wave spring is fastened at the center in such a way that the spring pressure plate can be inclined, and the convex conical locking piece that abuts when the seat surface is inclined at a specified angle is fixed on the inner side of the helical wave spring. On the spring pressing plate or the spring seat, the seat surface is fixed on the upper end of the foot column with the cylinder housed inside, and the lower end of the foot column is fixed on the spring pressing plate. To provide a stool that can be tilted in any direction with a simple and compact structure. Moreover, on the inner side of the helical wave spring, there is a conical locking piece mounted on the spring seat with bolts and a flat abutment piece mounted on the spring pressure plate with bolts opposite to its upper part, and the bottom surface is flat when the inclination is constant. At an angle, the locking member abuts against the abutment, and then cannot continue to tilt.

But this mechanism is also insufficient, and after seated, the abutment part is in conflict with the conical locking part, and the two are arc or point contacts within the swing angle range, and when the limit angle position of the design is reached, the two are radial line contact. Due to the need to bear the weight of the human body, this requires stronger materials for the locking part and the abutment part. For this reason, provide a kind of limit scheme that the upper and lower pressure plates are associated, become the research object of this utility model.

Invention content:

The purpose of this utility model is to design a swing device that adopts a joint bearing as a contact fit to form a swing constraint.

The technical scheme of the utility model is realized in the following way: a rocking device includes an upper pressing plate, a supporting spring, a lower pressing plate and an abutment piece; the two ends of the supporting spring are in contact with the upper pressing plate and the lower pressing plate respectively; There is a through hole in the center of the pressure plate and a concave shaft cavity through the center; the abutting piece is a joint bearing, the rod end of the joint bearing is locked on the lower pressure plate by bolts, and a short shaft is passed through the bearing end, and the short shaft overlaps Leaning against the concave shaft cavity forms the swing restriction of the upper pressing plate.

The supporting spring is a large-diameter spring, which is sandwiched between the upper and lower pressure plates.

The supporting springs are three to six small-diameter springs, and a plurality of supporting springs are arranged in a circular array between the upper and lower pressing plates.

The upper and lower pressing plates correspond to the positions where the supporting springs are located, and the guiding cones are locked by bolts, and the ends of the supporting springs are inserted into the guiding cones by means of the guiding cones.

The support spring is a wave compression spring with a rectangular section.

The swing device of the utility model adopts joint bearings as the abutting parts associated with the upper and lower pressure plates, which not only has the characteristics of simple structure, easy processing and assembly, smooth swing, wear resistance, and reliable angle limit; it can be matched with the swing stool and greatly improved. Simplify the assembly process of existing products.

Description of drawings:

Below in conjunction with specific legend the utility model is further described:

Figure 1 is a schematic diagram of the rocking device

Figure 2 is a schematic diagram of the inside of the swing stool

Figure 3 is an exploded schematic diagram of the swing device

in

1—upper platen 11—through hole 12—depressed shaft cavity 2—lower platen

3—support spring 31—guiding cone truncated 4—joint bearing 41—rod end

42—bearing end 43—short shaft 5—bolt 6—pillar

7—stool surface 8—base

Detailed ways:

Referring to Fig. 1 and Fig. 3, the rocking device includes an upper pressing plate 1, a lower pressing plate 2, a support spring 3 and an abutment piece, wherein the abutment piece directly adopts a joint bearing 4, which simplifies the processing process. The two ends of the support spring 2 are in contact with the upper platen 1 and the lower platen 2 respectively; the center of the upper platen 1 has a through hole 11 and a concave shaft cavity 12 over the center; the rod end 41 of the joint bearing 4 is locked by the bolt 5 On the lower platen 2, the bearing end 42 is pierced with a short shaft 43. The short shaft 43 rests on the recessed shaft cavity 12 to form a swing constraint on the upper platen 1, linking the upper and lower parts into one, avoiding separation and allowing The upper part swings; and the joint bearing itself has the characteristics of angle limitation, which just forms the constraint of the swing angle.

And supporting support spring 3, has two kinds of options, is respectively large diameter spring and small diameter spring.

The support spring 3 adopts a large-diameter spring, which is sandwiched between the upper and lower pressing plates 1 and 2 in the middle, and utilizes the centering spring force of the large-diameter spring to maintain the swing reset.

Or, the supporting springs 3 are three to six small-diameter springs, and a plurality of supporting springs 3 are arranged in a circular array between the upper and lower platens 1 and 2. The more the number of springs, the smoother the swing, especially when five to six are used. It can achieve the same experience effect as the large diameter spring.

Further, the upper and lower pressure plates 1, 2 are correspondingly positioned with the position of the supporting spring 3, and the bolt 5 is locked with a guiding cone 31, and the guiding cone 31 is inserted into the end of the supporting spring 3 to play a role in positioning the supporting spring 3. Of course, the spacing of the up and down guide frustums 31 can also be used to design an additional limit, that is, when the maximum angle of swing is reached, the up and down guide frustums corresponding to the compressed support spring 3 conflict with each other.

The support spring 3 is a compression spring with a rectangular cross-section wave shape. When the selected spring is compressed to a designed height, adjacent coils can interfere with each other. This state can also form an additional limit function for swinging.

Referring to Fig. 2, the swinging device of this design is mainly matched with the swinging stool. A pillar 6 is locked or welded on the upper platen 1, the top of the pillar is locked on the upper stool surface 7, and a base 8 is locked on the bottom surface of the lower platen 2, forming a complete The Swing Stool with Swing Function.

Claims

A rocking device, comprising an upper pressing plate, a supporting spring, a lower pressing plate and an abutment piece; the two ends of the supporting spring are in contact with the upper pressing plate and the lower pressing plate respectively; Depress the shaft cavity; the abutment is a joint bearing, the rod end of the joint bearing is locked on the lower pressure plate through bolts, and a short shaft is passed through the bearing end, and the short shaft rests on the concave shaft cavity. Form the swing constraints of the upper platen.
A swing device according to claim 1, characterized in that: the support spring is a large-diameter spring sandwiched between the upper and lower pressure plates.
The rocking device according to claim 1, characterized in that: the support springs are three to six small-diameter springs, and a plurality of support springs are arranged in a circular array between the upper and lower pressure plates.
A swing device according to claim 3, characterized in that: the upper and lower pressure plates are positioned correspondingly to the positions of the supporting springs, and the guiding cones are locked by bolts, and the ends of the supporting springs are inserted through the guiding cones.
A rocking device according to claim 1, 2, 3 or 4, characterized in that the support spring is a wave compression spring with a rectangular cross-section.