High-wear-resistance anti-static chair

Abstract

The utility model relates to a high-wear-resistance anti-static chair. The high-wear-resistance anti-static chair comprises chair legs, a lifting rod, a tray, a cushion and a fastener, one end of the lifting rod is inserted into the supporting end, and the other end of the lifting rod is inserted into the tray. And the cushion is connected with the tray through a fastener. A stop ring is arranged between the cushion and the tray, and the upper side and the lower side of the stop ring abut against the cushion and the tray respectively. And the fastener penetrates through the stop ring. The chair legs are provided with supporting legs, the supporting legs are provided with leg bottoms, and bases are installed at the leg bottoms. The base is provided with a mounting head and a limiting part. Adjusting pieces are arranged between the base and the foot bottoms, the two sides of the adjusting pieces abut against the foot bottoms and the limiting parts respectively, and the mounting heads penetrate through the adjusting pieces to be connected with the foot bottoms in an inserted mode. According to the utility model, the stop ring is arranged at the joint of the cushion and the tray, so that the cushion and the tray are connected more firmly and are not easy to loosen; the adjusting sheets are arranged between the supporting legs and the base, so that the supporting legs are uniformly stressed, and the supporting is more stable; the fastening rings are arranged, so that the supporting legs are supported more stably, and the chair is firmer and more durable.

Description

Technical Field

[0001] This utility model belongs to the technical field of chairs, specifically relating to a highly wear-resistant and anti-static chair. Background Technology

[0002] Anti-static chairs are widely used in hospitals, electronic manufacturing workshops, laboratories, cleanrooms, and other places requiring anti-static properties. Through the coordinated structure of the anti-static seat, support components, and casters or footrests, an anti-static chair forms a complete static discharge system that can quickly conduct static electricity generated by the human body to the ground, preventing damage to electronic components and the human body.

[0003] Currently, the connection between the seat cushion and tray of chairs on the market is not tight enough and is prone to loosening. There are no height adjustment parts between the chair legs and the base, causing some of the legs to be suspended in the air and not supported, which affects the stability of the chair and its normal use.

[0004] For example, the invention patent (authorization announcement number: CN113939214B) discloses a chair, including a base, a receiving portion connected to the upper end of the base, and a seat shell forming a seat surface. The seat shell is supported by the receiving portion. The chair also includes a backrest shell forming a backrest surface. The backrest shell is connected to the seat shell on both sides of the seat surface and both sides of the backrest surface. The backrest shell includes an extension extending from the backrest surface to the receiving portion below the seat shell. The extension is elastically deformable.

[0005] However, the fasteners connecting the tray and seat of the aforementioned chair lack retaining rings between them, making the connection prone to loosening and affecting user experience and lifespan. Furthermore, the lack of adjusting tabs at the connection between the chair legs and base causes some legs to dangle unsupported, affecting the chair's stability and thus impacting user experience and lifespan. Therefore, it is necessary to design a new solution to address these issues. Utility Model Content

[0006] The purpose of this utility model is to provide a highly wear-resistant and anti-static chair, aiming to solve the technical problems in the prior art where "the connection between the seat cushion and the tray is not tight enough and is easy to loosen, thus affecting the user experience and service life; and there is no height adjustment component between the chair legs and the base, causing some of the multiple legs to be suspended and not supported, affecting the stability of the chair support and thus affecting the user experience and service life".

[0007] To achieve the above objectives, this utility model provides a highly wear-resistant and anti-static chair, comprising a chair leg, a lifting rod, a tray, a seat cushion, and fasteners. The chair leg has a supporting end, one end of the lifting rod is inserted into the supporting end of the chair leg, and the other end of the lifting rod is inserted into the tray. The seat cushion and the tray are connected by the fasteners. A stop ring is also provided between the seat cushion and the tray, with its upper and lower sides respectively abutting against the seat cushion and the tray. The fasteners pass through the stop ring.

[0008] The chair leg is provided with a support leg, the support leg is provided with a foot bottom, the foot bottom is provided with a base, the base is provided with a mounting head and a limiting part, an adjustment piece is provided between the base and the foot bottom, the two sides of the adjustment piece abut against the foot bottom and the limiting part respectively, and the mounting head passes through the adjustment piece and is inserted into the foot bottom.

[0009] Optionally, the seat cushion has a countersunk hole at the position where it is aligned with the stop ring, and the stop ring is placed in the countersunk hole.

[0010] Optionally, the support leg also has an instep, and the instep has a fastening ring connected to the instep.

[0011] Optionally, the fastening ring is integrally formed with the instep of the foot.

[0012] Optionally, the end of the lifting rod that is inserted into the support end of the chair leg is provided with an anti-static component.

[0013] Optionally, the seat cushion is provided with ventilation holes.

[0014] Optionally, the upper surface of the cushion is provided with anti-slip texture.

[0015] Optionally, the tray is provided with an adjusting rocker arm, which abuts against the lifting rod.

[0016] Optionally, the tray edge is provided with an L-shaped bar.

[0017] Optionally, a backrest is mounted on the L-shaped rod, and the backrest is detachably connected to the L-shaped rod; the backrest is equipped with an airbag.

[0018] The high wear-resistant and anti-static chair provided in this utility model embodiment has at least one of the following technical effects: In this utility model, by setting a stop ring at the connection between the seat cushion and the tray, the connection between the seat cushion and the tray is made more secure and less prone to loosening; by setting an adjustment piece between the legs and the base, the force on multiple legs is evenly distributed, and the support is more stable; by setting a fastening ring, the support of multiple legs is made more stable, and the chair is more sturdy and durable. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of the high wear-resistant and antistatic chair provided in this embodiment of the utility model;

[0021] Figure 2 An exploded view of the high wear-resistant and anti-static chair provided in this embodiment of the utility model;

[0022] Figure 3 An enlarged structural schematic diagram of the pulley provided in an embodiment of this utility model;

[0023] Figure 4 A schematic diagram illustrating the combination of pulleys, foot cups, and foot pads provided in an embodiment of this utility model;

[0024] Figure 5 A schematic diagram of the structure of the chair legs provided in an embodiment of this utility model;

[0025] Figure 6 Another perspective view of the chair legs provided for an embodiment of this utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the seat cushion provided in an embodiment of the present utility model;

[0027] Figure 8 Another perspective view of the seat cushion provided in this embodiment of the utility model;

[0028] Figure 9 A schematic diagram of the combination of the backrest and airbag provided in an embodiment of this utility model;

[0029] Figure 10 for Figure 9 Sectional view at point BB.

[0030] The following are the labeling elements in the figure:

[0031] Chair leg 1, support end 11, support leg 12, foot bottom 121, foot back 122, fastening ring 13, lifting rod 2, anti-static component 21, tray 3, adjusting rocker 31, L-shaped rod 32, seat cushion 4, countersunk hole 41, ventilation hole 42, anti-slip texture 43, fastener 5, stop ring 6, base 7, caster 71, foot cup 72, foot pad 73, mounting head 711, limiting part 712, adjusting plate 8, backrest 9, airbag 91. Detailed Implementation

[0032] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0036] In one embodiment of this utility model, such as Figures 1-10As shown, a highly wear-resistant and anti-static chair is provided, including a chair leg 1, a lifting rod 2, a tray 3, a seat cushion 4, and fasteners 5. The chair leg 1 has a support end 11. One end of the lifting rod 2 is inserted into the support end 11 of the chair leg 1, and the other end of the lifting rod 2 is inserted into the tray 3. The internal structure of the lifting rod allows for 360° omnidirectional rotation. The seat cushion 4 and the tray 3 are connected by fasteners 5. The seat cushion 4 is integrally molded from PU foam material, providing strong adhesion when assembled with the other parts of the chair. The seat cushion 4 is an anti-static seat surface. Fasteners 5 can be bolts. A retaining ring 6 is also provided between the seat cushion 4 and the tray 3, with its upper and lower sides abutting against the seat cushion 4 and the tray 3 respectively. Fasteners 5 pass through the retaining ring 6. The retaining ring 6 can better fit the connection between the tray 3 and the seat cushion 4, increasing the contact area and friction between the tray 3 and the seat cushion 4, preventing localized stress at the connection point and loosening due to vibration, impact, or temperature changes. Meanwhile, the retaining ring 6 also evenly distributes the load applied by the fastener 5 to the surface of the connection, reducing local stress concentration and preventing damage to the connection due to excessive local stress, thus preventing loosening. The chair leg 1 has five support legs 12, which are evenly distributed around the lifting rod 2 as the axis. Each support leg 12 has a foot base 121, and a base 7 is installed on the foot base 121. The base 7 has an installation head 711 and a limiting part 712. The base 7 includes three types: pulley 71, foot cup 72, or foot pad 73, all of which are anti-static, enhancing the chair's versatility, adaptability, and safety. An adjusting piece 8 is provided between the base 7 and the foot base 121. The adjusting piece 8 comes in various models with different thicknesses, increasing in 1mm increments, ranging from 1mm to 30mm. The two sides of the adjusting piece 8 abut against the foot base 121 and the limiting part 712, respectively, and the installation head 711 passes through the adjusting piece 8 and inserts into the foot base 121. Errors are inevitable during the manufacturing process of the support legs 12 and base 7 of the chair leg 1. This makes it difficult to ensure that all support legs 12 and their bases 7 are evenly stressed and the seat cushion 4 is properly positioned after each support leg 12 is installed with its base 7. Therefore, adjustment pieces 8 are provided for adjustment. When using the chair, after assembling it completely, place it on a level surface. Install adjustment pieces 8 of appropriate thickness on different support legs 12 according to the actual situation. Multiple adjustment pieces 8 of the same model or different models can also be stacked and combined. Adjust the chair until all support legs 12 are evenly stressed, avoiding any support legs 12 being suspended without support and ensuring that the seat cushion 4 is properly positioned for use.

[0037] In this embodiment of the invention, a stop ring 6 is provided at the connection between the seat cushion 4 and the tray 3, making the connection between the seat cushion 4 and the tray 3 more secure and less prone to loosening. An adjusting piece 8 is provided between the support legs 12 and the base 7 to ensure that the multiple support legs 12 are evenly stressed and provide more stable support, thereby making the chair more sturdy and durable.

[0038] In another embodiment of this utility model, such as Figure 7As shown, the seat cushion 4 has a countersunk hole 41 at the position where the stop ring 6 is aligned. The stop ring 6 is partially housed in the countersunk hole 41, so that the stop ring 6 can play a role in fastening and preventing loosening, while avoiding excessive gap between the seat cushion 4 and the tray 3, which would take up too much space and be not conducive to a tight connection.

[0039] In another embodiment of this utility model, such as Figure 5 As shown, the legs 12 also have insteps 122, and the insteps 122 have fastening rings 13. The fastening rings 13 are connected to the insteps 122, making the multiple legs 12 more stable. The fastening rings 13 and the insteps 122 of the legs 12 are integrally formed, making the chair legs 1 stronger, with a greater load-bearing capacity and a more robust structure, thus making the chair more sturdy and durable. In addition, the fastening rings 13 also serve as footrests, enhancing the practicality of the chair.

[0040] In another embodiment of this utility model, such as Figures 1-2 As shown, the end of the lifting rod 2 that connects to the support end 11 of the chair leg 1 is equipped with an anti-static component 21. When the chair is in use, the anti-static component 21 hangs down naturally to ground and conduct electricity, preventing static electricity from damaging electronic components and the human body. The anti-static component 21 is generally an anti-static grounding chain.

[0041] In another embodiment of this utility model, such as Figures 7-8 As shown, the seat cushion 4 has ventilation holes 42 to enhance heat dissipation and breathability. The upper surface of the seat cushion 4 has anti-slip texture 43, which increases friction to prevent slipping when using the chair and also enhances the comfortable feel of the contact area when the user sits down. The ventilation holes 42 and anti-slip texture 43 enhance the practicality of this invention.

[0042] In another embodiment of this utility model, such as Figures 1-2 As shown, the tray 3 is equipped with an adjusting rocker arm 31, which abuts against the lifting rod 2. Operating the adjusting rocker arm 31 controls the raising and lowering of the lifting rod 2, adjusting the height of the chair to meet the actual needs of different users and enhancing the chair's adaptability.

[0043] In another embodiment of this utility model, such as Figure 2 As shown, an L-shaped rod 32 is provided along the edge of the tray 3. The L-shaped rod 32 is integrally formed with the tray 3 to ensure the strength and stability of the structure. A backrest 9 is installed on the L-shaped rod 32 for the user to lean against. The backrest 9 and the L-shaped rod 32 are detachably connected for easy and flexible installation and replacement. Figure 10 As shown, the backrest 9 is equipped with an airbag 91, which improves the comfort of the user experience.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A highly wear-resistant and anti-static chair, comprising a chair leg, a lifting rod, a tray, a seat cushion, and fasteners, wherein the chair leg has a supporting end, one end of the lifting rod is inserted into the supporting end of the chair leg, the other end of the lifting rod is inserted into the tray, and the seat cushion is connected to the tray by the fasteners; characterized in that: A stop ring is also provided between the seat cushion and the tray. The upper and lower sides of the stop ring abut against the seat cushion and the tray respectively, and the fastener passes through the stop ring. The chair leg is provided with a support leg, the support leg is provided with a foot bottom, the foot bottom is provided with a base, the base is provided with a mounting head and a limiting part, an adjustment piece is provided between the base and the foot bottom, the two sides of the adjustment piece abut against the foot bottom and the limiting part respectively, and the mounting head passes through the adjustment piece and is inserted into the foot bottom.

2. The high wear resistant anti-static chair of claim 1, wherein: The seat cushion has a countersunk hole at the position where it is aligned with the stop ring, and the stop ring is placed in the countersunk hole.

3. The high wear resistant anti-static chair of claim 2, wherein: The support leg also has an instep, and the instep has a fastening ring, which is connected to the instep.

4. The high wear resistant anti-static chair of claim 3, wherein: The fastening ring is integrally formed with the instep of the foot of the support leg.

5. The high wear resistant anti-static chair according to any one of claims 1-4, characterized in that: The end of the lifting rod that is inserted into the support end of the chair leg is provided with an anti-static component.

6. The high wear resistant anti-static chair of claim 5, wherein: The seat cushion has ventilation holes.

7. The high wear resistant anti-static chair of claim 6, wherein: The upper surface of the seat cushion is provided with anti-slip texture.

8. The high wear resistant anti-static chair of claim 7, wherein: The tray is equipped with an adjusting rocker arm, which abuts against the lifting rod.

9. The high wear resistant anti-static chair of any of claims 6-8, wherein: The tray has an L-shaped bar along its edge.

10. The high wear resistant anti-static chair of claim 9, wherein: A backrest is mounted on the L-shaped rod, and the backrest is detachably connected to the L-shaped rod; the backrest is equipped with an airbag.

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