Anti-static seat structure

Abstract

The utility model belongs to the technical field of seats, and particularly relates to an anti-static seat structure which comprises a seat plate, a backrest plate, a metal connecting rod and a lifting supporting seat. The upper end of the metal connecting rod is arranged in the mounting groove, and the lower end of the metal connecting rod is arranged on the bottom side of the seat plate; a first through hole is formed in the backrest plate, a first conductive element is arranged in the first through hole, and the first conductive element is communicated with the metal connecting rod; a metal plate is arranged on the bottom side of the seat plate; the lower end of the metal connecting rod is fixedly connected with the metal plate; a second through hole is formed in the seat plate, a second conductive element is arranged in the second through hole, and the second conductive element is conducted with the metal plate; the upper end of the lifting supporting seat is fixedly mounted on the bottom side of the metal plate; the lifting supporting seat comprises a telescopic rod, a base and rollers; the upper end of the telescopic supporting rod is connected with the metal plate, and the lower end of the telescopic supporting rod is connected with the base. A spring wire is arranged in the telescopic rod and connected with the metal plate and the base. The outer surface of the roller is provided with a third conductive element.

Description

Technical Field

[0001] This utility model belongs to the field of seat technology, and in particular relates to an anti-static seat structure. Background Technology

[0002] Currently, many precision equipment manufacturing workshops are cleanrooms. In these cleanrooms, workers sit on chairs to work. The chairs generate static electricity due to friction while being seated, which causes dust in the air to adhere to the chairs. When workers sit on the chairs, the dust then adheres to their clothes, which is detrimental to the production of precision equipment. Therefore, to reduce the static electricity generated by the chairs, cleanrooms usually use anti-static chairs. These chairs conduct their own static electricity to the ground, thus reducing the amount of static electricity on the chairs and consequently reducing the amount of dust adhering to them.

[0003] Chinese utility model patent document CN213188814U discloses a laboratory anti-static chair, including a seat, backrest, base, uprights, support columns, locking pins, and a baffle. The bottom end of the backrest is connected to the left half of the top of the seat, and an anti-static pad is provided at the top of the seat. The top of the uprights is connected to the central area of ​​the bottom of the seat, and a telescopic groove is provided at the bottom of the uprights. A telescopic hole is provided laterally in the lower half of the right side wall of the uprights. The top of the support column is inserted into the telescopic groove, and the outer side wall of the support column and the inner side wall of the telescopic groove are in slidable and close contact. Multiple sets of locking slots are provided at equal intervals from top to bottom on the right side wall of the support column. The left end of the locking pin passes through the telescopic hole and is inserted into one of the locking slots. The right end of the locking pin is connected to the central area of ​​the left side wall of the baffle. The support column is connected to the central area of ​​the top of the base plate. The bottom of the base plate is equipped with four sets of universal wheels, each with a brake plate. The system also includes a sliding rod, a spring, a cross plate, an arc-shaped rubber bendable plate, and a rubber cylinder. The right end of the back plate has a fixing groove, and the top of the back plate has a longitudinal sliding hole that communicates with the fixing groove. The top of the spring is connected to the central area of ​​the bottom of the cross plate, and the bottom of the spring is connected to the top of the back plate. The top of the sliding rod passes through the sliding hole and the spring in sequence and connects to the central area of ​​the bottom of the cross plate. The top and bottom of the arc-shaped rubber bendable plate are connected to the bottom of the sliding rod and the right half of the bottom side wall of the fixing groove, respectively. The left end of the rubber cylinder is connected to the central area of ​​the left side wall of the fixing groove, and the right end of the rubber cylinder is in contact with the left end of the arc-shaped rubber bendable plate.

[0004] The aforementioned patent documents primarily rely on antistatic mats (antistatic materials) to eliminate static electricity. Antistatic mats are convenient to use and have a simple structure, allowing for widespread adoption. However, the effectiveness of antistatic materials can be affected by environmental factors such as humidity and temperature, and may fail to effectively eliminate static electricity under extreme conditions. Furthermore, the antistatic performance of the material may decrease after prolonged use, necessitating replacement.

[0005] To overcome the problem that laboratory chairs cannot completely eliminate static electricity, Chinese utility model patent CN214386796U discloses an anti-static chair, including a vertical column and horizontal bars. The vertical column is vertically arranged; multiple horizontal bars are arranged, one end of which is fixed to the lower end of the vertical column, and the other end extends horizontally away from the vertical column. These horizontal bars are evenly arranged around the center line of the vertical column, and a caster wheel is fixed to the end of the horizontal bar away from the vertical column. The chair also includes a conductive element mounted on the vertical column, one end of which is connected to the lower end of the vertical column, and the other end abuts against the ground in planar contact. By using the conductive element, the chair achieves planar contact with the ground, making it less likely that the contact area between the chair and the ground will fall within the grid of the conductive mesh. This makes it easier to form a circuit between the testing equipment and the anti-static chair, allowing the testing equipment to easily detect the conductivity of the anti-static chair and reducing the likelihood of misjudgment during subsequent quality assessment.

[0006] The aforementioned patent document utilizes the contact between a conductive component and the bottom surface to achieve grounding. However, because the seat has casters at the bottom, the conductive component rubs against the ground as the seat moves. Although the conductive component uses an elastic connection, the elastic force causes it to elastically support the ground, which still leads to wear and tear. Utility Model Content

[0007] The purpose of this invention is to provide an anti-static seat structure to solve the problem that existing grounded anti-static seats cause the grounding conductive components to slide and come into contact with the ground, resulting in wear.

[0008] To achieve the above objectives, this utility model provides an anti-static seat structure, including a seat plate, a backrest plate, a metal connecting rod, and a lifting support base; the backrest plate has a mounting groove on its back side, the upper end of the metal connecting rod is disposed in the mounting groove, and the lower end is bent and installed on the bottom side of the seat plate; the front side of the backrest plate has a first through hole, which extends to the mounting groove, and a first conductive element is disposed in the first through hole and is in communication with the metal connecting rod; the bottom side of the seat plate has a metal plate, and the lower end of the metal connecting rod is fixedly connected to the metal plate; the seat plate... The upper surface is provided with a second through hole, and a second conductive element is provided in the second through hole. The second conductive element is in communication with the metal plate. The upper end of the lifting support is fixedly installed on the bottom side of the metal plate. The lifting support includes a telescopic rod, a base, and a roller. The upper end of the telescopic rod is connected to the metal plate, and the lower end is connected to the base. The roller is located at the bottom end of the base. A spring wire is provided in the telescopic rod. The upper end of the spring wire is connected to the metal plate, and the lower end is connected to the base. A third conductive element is provided on the outer surface of the roller. The third conductive element is in communication with the base.

[0009] Furthermore, the outer surface of the roller is provided with multiple grooves, and the third conductive element is disposed in the grooves.

[0010] Furthermore, the roller includes a mounting bracket, a drive shaft, a bearing, and a rubber sleeve; the mounting bracket is connected to a base, the drive shaft is mounted on the mounting bracket, the bearing is sleeved on the drive shaft, the rubber sleeve wraps around the outer ring of the bearing, and the outer edge of the rubber sleeve is provided with a plurality of grooves; the third conductive element includes an elastic pin and a metal sheet, the elastic pin is embedded in the rubber sleeve, and the elastic end of the elastic pin abuts against the outer ring of the bearing, while the other end is connected to the metal sheet, which is embedded in the groove.

[0011] Furthermore, the groove is also filled with an elastic material, and the metal sheet is attached to the outside of the elastic material.

[0012] Furthermore, a first silicone plug is provided in the first through hole, and the first conductive element is embedded in the surface of the first silicone plug; a second silicone plug is provided in the second through hole, and the second conductive element is embedded in the outer surface of the second silicone plug.

[0013] Furthermore, both the first silicone plug and the second silicone plug are conductive silicone plugs; the first conductive element and the second conductive element are stainless steel sheets.

[0014] Furthermore, the mounting groove is a U-shaped groove, the metal connecting rod is bent into a U-shape and fixed in the mounting groove; both ends of the metal connecting rod are bent laterally and fixed to the bottom side of the seat plate.

[0015] Furthermore, the seat plate is also provided with a support plate, and the two ends of the metal connecting rod are welded to the metal plate; the lateral bend of the metal connecting rod is welded to the support plate at one end closer to the backrest.

[0016] The above-mentioned technical solutions in the anti-static seat structure provided by this utility model embodiment have at least the following technical effects:

[0017] 1. A first conductive element and a second conductive element are respectively provided on the backrest panel and the seat panel, and both the first and second conductive elements are conductive to a metal plate. The metal plate is connected to the base via a spring wire. A third conductive element is provided on the outer surface of the roller, and the third conductive element is conductive to the base. Therefore, the first and second conductive elements are grounded by connecting to the roller. Since the third conductive element is located on the roller, it rolls and grounds along with the roller, replacing sliding friction, reducing wear, and increasing service life.

[0018] 2. When adjusting the height of the lifting support, the spring cable will stretch or contract accordingly, preventing irregular folding of the cable when the lifting support is lowered. This also prevents the cable from jamming the lifting support. 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 This is a structural diagram of the antistatic seat structure provided in an embodiment of the present utility model.

[0021] Figure 2 A cross-sectional view of the anti-static seat structure provided in an embodiment of this utility model.

[0022] Figure 3 A cross-sectional view of the roller portion of the antistatic seat structure provided in an embodiment of this utility model.

[0023] Figure 4 The bottom structure diagram of the antistatic seat structure provided in the embodiment of this utility model. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of the embodiments 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 this utility model, and should not be construed as limiting the utility model.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] In one embodiment of the antistatic seat structure of this utility model, please refer to... Figures 1 to 4The electrostatic seat structure of this embodiment includes a seat plate 100, a backrest plate 200, a metal connecting rod 300, and a lifting support base 400. The backrest plate 200 has a mounting groove 201 on its back side. The upper end of the metal connecting rod 300 is located within the mounting groove 201, and its lower end is bent and mounted on the bottom side of the seat plate 100. The front side of the backrest plate 200 has a first through hole 202 that extends into the mounting groove 201. A first conductive element 500 is located within the first through hole 202 and is in communication with the metal connecting rod 300. A metal plate 600 is located on the bottom side of the seat plate 100, and the lower end of the metal connecting rod 300 is fixedly connected to the metal plate 600. The upper surface of the seat plate 100 has a second through hole 101, within which a second conductive element 700 is located and is in communication with the metal plate 600. The upper end of the lifting support base 400 is fixedly mounted on the bottom side of the metal plate 600. The lifting support seat 400 includes a telescopic rod 410, a base 420, and rollers 430. The upper end of the telescopic rod 410 is connected to a metal plate 600, and the lower end is connected to the base 420. The rollers 430 are located at the bottom of the base 420. This allows for seat height adjustment. A spring wire 800 is installed inside the telescopic rod 410. The upper end of the spring wire 800 is connected to the metal plate 600, and the lower end is connected to the base 420. When the telescopic rod 410 extends or retracts, the spring wire 800 also extends or retracts. A third conductive element 900 is provided on the outer surface of the rollers 430, and the third conductive element 900 is connected to the base 420.

[0029] In this embodiment of the electrostatic seat, a first conductive element 500 and a second conductive element 700 are respectively provided on the backrest 200 and seat 100. Both the first conductive element 500 and the second conductive element 700 are conductive to the metal plate 600, which is connected to the base 410 via a spring wire 800. A third conductive element 900 is provided on the outer surface of the roller 430, and the third conductive element 900 is conductive to the base 410. Therefore, the first conductive element 500 and the second conductive element 700 are grounded by the third conductive element 900 on the roller 430. Since the third conductive element 900 is located on the roller 430, it rolls and grounds along with the roller 430, replacing sliding friction, reducing wear, and increasing service life. In addition, when adjusting the height of the lifting support 400, the spring wire 800 will stretch or contract accordingly, avoiding the problem of irregular folding of the wire when the lifting support 400 is lowered. This also avoids the problem of the wire jamming the lifting support 400.

[0030] Furthermore, refer to Figure 3 The outer surface of the roller 430 is provided with multiple grooves 431, and the third conductive element 900 is disposed in the grooves 431. This ensures that the third conductive element 900 is flush with the outer surface of the roller 430, making the roller 430 roll more smoothly.

[0031] Furthermore, refer to Figure 3 The roller 430 includes a mounting frame 432, a drive shaft 433, a bearing 434, and a rubber sleeve 435. The mounting frame 432 is connected to the base 420, the drive shaft 433 is mounted on the mounting frame 432, the bearing 434 is sleeved on the drive shaft 433, and the rubber sleeve 435 wraps around the outer ring of the bearing 434. The outer edge of the rubber sleeve 435 has multiple grooves 431. The third conductive element 900 includes an elastic pin 910 and a metal sheet 920. The elastic pin 910 is embedded in the rubber sleeve 435, and the elastic end of the elastic pin 910 abuts against the outer ring of the bearing 434, while the other end is connected to the metal sheet 920, which is embedded in the groove 431. In this embodiment, the elastic pin 910 is used to enable the metal sheet 920 to conduct electricity with the first conductive element 500 and the second conductive element 700. Furthermore, the bearing 434 is used as the carrier for conduction, ensuring that the roller 430 rolls normally.

[0032] Furthermore, the groove 431 is also filled with an elastic material 436, and the metal sheet 920 is attached to the outside of the elastic material 436. Specifically, the elastic material can be a foam material, silicone, etc., thereby preventing the metal sheet 920 from making hard contact with the ground and achieving a protective effect on the metal sheet 920.

[0033] Furthermore, refer to Figure 2 A first silicone plug 210 is provided inside the first through hole 202, and a first conductive element 500 is embedded in the surface of the first silicone plug 210. A second silicone plug 110 is provided inside the second through hole 101, and a second conductive element 700 is embedded in the outer surface of the second silicone plug 110. Fixing the conductive element with the silicone plug can increase the stability of the conductive element.

[0034] Furthermore, both the first silicone plug 210 and the second silicone plug 110 are conductive silicone plugs; the first conductive element 500 and the second conductive element 700 are stainless steel sheets.

[0035] Furthermore, refer to Figure 1 and Figure 4 The mounting groove 201 is a U-shaped groove, and the metal connecting rod 300 is bent into a U-shape and fixed within the mounting groove 201. Both ends of the metal connecting rod 300 are bent laterally and fixed to the bottom side of the seat plate 100. This increases the stability of the connection between the backrest plate 200 and the seat plate 100.

[0036] Furthermore, refer to Figure 2 and Figure 4The seat plate 100 also includes a support plate 120, and the two ends of the metal connecting rod 300 are welded to the metal plate 600; the lateral bend of the metal connecting rod 300 is welded to the support plate 120 at the end closer to the backrest plate 200. This increases the stability of the connection between the metal connecting rod 300 and the seat plate 100, preventing the metal connecting rod 300 from breaking along the welding point to the metal plate 600.

[0037] 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. An antistatic seat structure, characterized in that, The device includes a seat panel, a backrest panel, a metal connecting rod, and a lifting support base. The backrest panel has a mounting groove on its back side, and the upper end of the metal connecting rod is located within the mounting groove, while its lower end is bent and mounted on the bottom side of the seat panel. The front side of the backrest panel has a first through hole extending into the mounting groove. A first conductive element is located within the first through hole and is connected to the metal connecting rod. The bottom side of the seat panel has a metal plate, and the lower end of the metal connecting rod is fixedly connected to the metal plate. The upper surface of the seat panel has a second through hole. A second conductive element is provided inside the through hole, and the second conductive element is in communication with the metal plate; the upper end of the lifting support is fixedly installed on the bottom side of the metal plate; the lifting support includes a telescopic rod, a base, and a roller; the upper end of the telescopic rod is connected to the metal plate, and the lower end is connected to the base, and the roller is located at the bottom end of the base; a spring wire is provided inside the telescopic rod, the upper end of the spring wire is connected to the metal plate, and the lower end is connected to the base; a third conductive element is provided on the outer surface of the roller, and the third conductive element is in communication with the base.

2. The antistatic seat structure according to claim 1, characterized in that: The outer surface of the roller is provided with multiple grooves, and the third conductive element is disposed in the grooves.

3. The antistatic seat structure according to claim 2, characterized in that: The roller includes a mounting bracket, a drive shaft, a bearing, and a rubber sleeve. The mounting bracket is connected to a base, the drive shaft is mounted on the mounting bracket, the bearing is sleeved on the drive shaft, and the rubber sleeve wraps around the outer ring of the bearing. The outer edge of the rubber sleeve has multiple grooves. The third conductive element includes an elastic pin and a metal sheet. The elastic pin is embedded in the rubber sleeve, and the elastic end of the elastic pin abuts against the outer ring of the bearing, while the other end is connected to the metal sheet, which is embedded in the groove.

4. The antistatic seat structure according to claim 3, characterized in that: The groove is also filled with an elastic material, and the metal sheet is attached to the outside of the elastic material.

5. The antistatic seat structure according to any one of claims 1 to 4, characterized in that: A first silicone plug is provided in the first through hole, and the first conductive element is embedded in the surface of the first silicone plug; a second silicone plug is provided in the second through hole, and the second conductive element is embedded in the outer surface of the second silicone plug.

6. The antistatic seat structure according to claim 5, characterized in that: Both the first silicone plug and the second silicone plug are conductive silicone plugs; the first conductive element and the second conductive element are stainless steel sheets.

7. The antistatic seat structure according to claim 1, characterized in that: The mounting groove is a U-shaped groove, and the metal connecting rod is bent into a U-shape and fixed in the mounting groove; both ends of the metal connecting rod are bent laterally and fixed to the bottom side of the seat plate.

8. The antistatic seat structure according to claim 7, characterized in that: The seat plate is also provided with a support plate, and the two ends of the metal connecting rod are welded to the metal plate; the lateral bend of the metal connecting rod is welded to the support plate at the end closer to the backrest.

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