Engineering chair back supporting structure

Abstract

The utility model discloses an engineering chair back supporting structure which comprises a supporting rod and a front frame, a bending part is arranged at the upper end of the front frame, the bending part is installed at the upper end of the supporting rod, the front frame extends forwards from top to bottom in an arc shape, and the lower end of the front frame is connected with the bottom of the supporting rod. In actual design, compared with an existing structure integrally formed by a single plate body, the back supporting structure is of a two-section type structure, the back supporting structure can serve as a whole, and meanwhile in actual mold production, the production cost is lower; the two sides of the front frame can wrap the two sides of the waist, and therefore the design integrity is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of seat, especially relates to a ergonomic chair back supporting structure. BACKGROUND

[0002] The ergonomic chair is designed to be generous, unique, fashionable and light, and is a new type of environment-friendly and healthy chair widely applied to modern families, entertainment, internet bars, hotels, leisure, conference rooms and office computer tables.

[0003] The back frame of the existing seat generally has only a single plate surface, so the softness and supporting surface are smaller, and the comfort is greatly affected, for example, Chinese patent 202322442395.8 adopts a single backrest, so the overall performance is poor. UTILITARIAN CONTENT

[0004] The main purpose of the utility model is to provide a ergonomic chair back supporting structure, which aims to improve the existing back supporting structure and has good covering feeling and comfort.

[0005] To achieve the above purpose, the utility model provides a ergonomic chair back supporting structure, which comprises a supporting rod and a front frame,

[0006] The upper end of the front frame is provided with a bending part, and the bending part is installed at the upper end of the supporting rod,

[0007] The front frame extends in an arc shape from top to bottom towards the front, and the lower end of the front frame is connected with the bottom of the supporting rod.

[0008] In actual design, compared with the structure of the existing single plate body integrated into one piece, the two-section structure can make the back supporting structure as a whole, and the production cost is lower in actual mold production.

[0009] The two sides of the front frame can also cover the two sides of the waist, thereby improving the design integrity. DRAWING EXPLANATION

[0010] Figure 1 It is a three-dimensional schematic view of the utility model;

[0011] Figure 2 It is an explosion of the utility model Figure 1 ;

[0012] Figure 3 It is an explosion of the utility model Figure 1 ;

[0013] Figure 4 It is a side view of the utility model.

[0014] In the picture,

[0015] 1 is the support rod, 11 is the main body, 12 is the support arm, and 13 is the clearance groove.

[0016] 2 represents the front frame, and 21 represents the bend.

[0017] 31 is the insertion slot, and 32 is the insertion part.

[0018] 301 is the notch, 302 is the stop, and 303 is the flank.

[0019] 41 is the card section, 42 is the card slot.

[0020] 5 represents the screw.

[0021] 6 is an elastic element.

[0022] 7 is the sliding cavity, 71 is the adjusting rod, and 72 is the base.

[0023] 73 is the adjustment groove, and 74 is the concave-convex part.

[0024] 8 is the adjusting component, 81 is the spring, and 82 is the swing shaft.

[0025] 9 represents a pulley. Detailed Implementation

[0026] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0027] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0029] like Figures 1 to 4 As shown, an ergonomic chair back support structure includes a support rod 1 and a front frame 2.

[0030] The upper end of the front frame 2 is provided with a bending part 21, which is installed on the upper end of the support rod 1.

[0031] The front frame 2 extends forward in an arc shape from top to bottom, and the lower end of the front frame 2 is connected to the bottom of the support rod 1.

[0032] In actual design, compared with the existing single-plate one-piece molding structure, the two-section structure can make the back support structure a whole, and at the same time, the production cost is lower in actual mold production.

[0033] The front frame 2 can also cover the waist on both sides, thereby improving the overall design integrity. The front frame 2 is a non-planar rectangular frame.

[0034] Specifically, the bending portion 21 is arc-shaped, thereby achieving an arc-shaped transition between the front frame 2 and the support rod 1, thus improving the aesthetics of the ergonomic chair.

[0035] In this embodiment of the utility model, the end of the bending part 21 is provided with an insertion part 32, and the upper end of the support rod 1 is provided with an insertion groove 31 that cooperates with the insertion part 32, thereby achieving mutual cooperation and fixation, while making its appearance transition more smoothly.

[0036] Specifically, the inner wall of the upper end of the support rod 1 is provided with a notch 301, which extends from top to bottom to the stop 302. The notch 301 and the stop 302 form the insertion groove 31, which facilitates production and installation, while also ensuring the aesthetic appearance.

[0037] In this embodiment of the utility model, the insertion part 32 is provided with a plurality of horizontally extending locking parts 41, and the inner sidewall of the insertion groove 31 is provided with a locking groove 42 that cooperates with the locking parts 41. The two sides of the locking groove 42 are also provided with side wings 303. Stable installation is achieved through the mutual cooperation of the locking groove 42 and the locking parts 41. The side wings 303 can provide a larger contact area and also provide better aesthetics.

[0038] Specifically, the insertion part 32 is provided with a threaded through hole, and the insertion groove 31 is provided with a threaded hole that mates with the threaded through hole. A screw 5 passes through the threaded through hole and is screwed into the threaded hole, thereby realizing the installation between the two. The screw 5 is provided in multiple parts to ensure the stability of the installation.

[0039] In this embodiment of the utility model, an elastic element 6 is provided between the lower end of the front frame 2 and the bottom of the support rod 1, and the two ends of the elastic element 6 are respectively fixed to the front frame 2 and the support rod 1.

[0040] Specifically, the support rod 1 includes a main body 11 and two arms 12 extending upward from the main body 11, with the insertion part 32 provided at the upper end of each arm 12.

[0041] The two arms 12 form a clearance groove 13, which can prevent the mold from shrinking after demolding and also provide a better aesthetic appearance.

[0042] In this embodiment of the invention, the support rod 1 (i.e., the position of the main body 11) is provided with a sliding cavity 7 extending from bottom to top.

[0043] The sliding cavity 7 is provided with a slidably mounted adjusting rod 71, which is located on the base 72.

[0044] The adjusting rod 71 has an adjusting groove 73 in the middle, and the adjusting groove 73 has concave and convex portions 74 on both sides.

[0045] The outer wall of the support rod 1 is provided with an adjusting member 8 that extends into the sliding cavity 7 and cooperates with the concave and convex parts 74.

[0046] Specifically, the base 72 and the adjusting rod 71 are integrally formed; the adjusting component 8 includes two pivotally mounted swing shafts 81 and spring plates 80 that cooperate with the swing shafts, the spring plates being used to drive the ends of the swing shafts to abut against the concave and convex portions 74; the wall surface of the adjusting rod 71 is also provided with a pulley 9, the pulley 9 abutting against the wall surface of the sliding cavity 7. This ensures the stability and guidance of the sliding, while the spring plate also ensures locking.

[0047] The one-piece molded base 72 provides a better visual aesthetic, avoids the problem of exposed adjustment structures, enhances the design aesthetics, and also changes the traditional design.

[0048] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An ergonomic chair back support structure, characterized in that, Including the support rod and the front frame, The upper end of the front frame is provided with a rearwardly extending bent portion, which is installed on the upper end of the support rod. The front frame extends forward in an arc from top to bottom, and the lower end of the front frame is connected to the bottom of the support rod.

2. The ergonomic chair back support structure as described in claim 1, characterized in that: The bending section is arc-shaped, and the front frame is a non-planar rectangular frame.

3. The ergonomic chair back support structure as described in claim 1, characterized in that: The end of the bent portion is provided with an insertion part, and the upper end of the support rod is provided with an insertion groove that cooperates with the insertion part.

4. The ergonomic chair back support structure as described in claim 3, characterized in that: The inner wall of the upper end of the support rod is provided with a notch, which extends from top to bottom to the stop, and the notch and the stop form the insertion groove.

5. The ergonomic chair back support structure as described in claim 4, characterized in that: The insertion part is provided with multiple horizontally extending locking parts, the inner sidewall of the insertion slot is provided with locking grooves that cooperate with the locking parts, and the two sides of the locking grooves are also provided with side wings.

6. The ergonomic chair back support structure as described in claim 3, characterized in that: The insertion part is provided with a threaded through hole, and the insertion slot is provided with a threaded hole that matches the threaded through hole. A screw passes through the threaded through hole and is screwed into the threaded hole.

7. The ergonomic chair back support structure as described in claim 3, characterized in that: An elastic element is provided between the lower end of the front frame and the bottom of the support rod, and the two ends of the elastic element are respectively fixed to the front frame and the support rod.

8. The ergonomic chair back support structure as described in claim 3, characterized in that: The support rod includes a main body and two arms extending upward from the main body, with the insertion part provided at the upper end of each arm. A clearance groove is formed between the two arms.

9. The ergonomic chair back support structure as described in claim 1, characterized in that: The support rod is provided with a sliding cavity extending from bottom to top. The sliding cavity is equipped with a slidably adjustable rod, which is located on the base. The adjusting rod has an adjusting groove in the middle, and the adjusting groove has concave and convex parts on both sides. The outer wall of the support rod is provided with an adjusting element that extends into the sliding cavity and cooperates with the concave and convex parts.

10. The ergonomic chair back support structure as described in claim 9, characterized in that: The base and the adjusting rod are integrally formed; The adjusting component includes two pivotally mounted swing shafts and spring plates that cooperate with the swing shafts. The spring plates are used to drive the ends of the swing shafts to abut against the concave and convex portions. The adjusting rod is also provided with a pulley on its wall, and the pulley abuts against the wall of the sliding cavity.

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