Grounding device for anti-static chair and anti-static chair

Abstract

The embodiment of the utility model provides a grounding device for an anti-static chair and the anti-static chair, the grounding device comprises a mass block and at least one chain, the mass block is placed on the ground at the bottom of the anti-static chair, and the first end of the chain is fixedly connected with the mass block; and the second end of the chain is used for being fixedly connected with a chair leg of the anti-static chair. Due to the mass block, the weight of the whole chain is increased, so that the chain is not easy to disconnect and break, and poor contact with an anti-static floor is avoided; the two ends of the chain are fixed to the mass block and the chair legs respectively, so that the grounding stability of the chain is improved, the chain is not prone to rolling in the moving process of the anti-static chair, the contact area of the chain and a conductive wire on the anti-static floor is increased, the grounding effect of the grounding device is guaranteed, people can be prevented from stepping on the chain, and the reliability of the anti-static chair is improved.

Description

Technical Field

[0001] The disclosed embodiments belong to the field of semiconductor manufacturing technology, and specifically relate to a grounding device for an anti-static chair and an anti-static chair. Background Art

[0002] In semiconductor manufacturing and electronic manufacturing processes, there are requirements for electrostatic protection. To prevent the risk of electrostatic damage when operating electrostatic sensitive products, anti-static chairs should be used.

[0003] Currently, if Figure 1 As shown, the anti-static chair is a chair 1 with a chain 2 installed at the bottom, through which the static electricity of the chair is transferred to the ground.

[0004] There are the following problems:

[0005] 1) A single chain is used for grounding, and the stability of the chain contact surface is insufficient;

[0006] 2) The chain is not heavy enough, which may cause it to become disconnected and broken, resulting in poor contact;

[0007] 3) The chain is easy to roll when the chair is moving, which reduces the contact area between it and the conductive wire on the anti-static floor, resulting in poor contact. In addition, when the anti-static chair is moving, people are easy to step on the chain, which reduces the reliability of the anti-static chair.

[0008] In view of the above problems, it is necessary to propose a grounding device for an anti-static chair and an anti-static chair that are reasonably designed and can effectively improve the above problems. Utility Model Content

[0009] The embodiments of the present disclosure aim to solve at least one of the technical problems existing in the prior art, and provide a grounding device for an anti-static chair and an anti-static chair.

[0010] One aspect of an embodiment of the present disclosure provides a grounding device for an anti-static chair, wherein the grounding device is arranged at the bottom of the anti-static chair.

[0011] include:

[0012] A mass block, the mass block is used to be placed on the ground and is located at the bottom of the anti-static chair;

[0013] At least one chain, the first end of the chain is fixedly connected to the mass block, and the second end of the chain is used to be fixedly connected to the chair leg of the anti-static chair; wherein,

[0014] The chain is used to fit into the ground so as to transfer the static electricity of the anti-static chair to the ground.

[0015] Optionally, the mass block is a stainless steel mass block.

[0016] Optionally, the second end of the chain is used to be fixedly connected to the end of a leg of the anti-static chair.

[0017] Optionally, there are multiple chains;

[0018] The first end of each chain is fixedly connected to the mass block, and the second end of each chain is used for fixedly connecting to the corresponding chair leg.

[0019] Optionally, the chain is a rigid flat structure, wherein one side of the chain along its thickness direction is used to fit against the ground.

[0020] Optionally, the chain includes a plurality of annular bodies;

[0021] The plurality of annular bodies are arranged in sequence along the length direction of the chain, and every two adjacent annular bodies are fixedly connected.

[0022] Optionally, the chain further includes a plurality of connecting rods, and each two adjacent annular bodies are fixedly connected via the connecting rods.

[0023] Optionally, the ring width of the annular body is greater than 6 mm.

[0024] Another aspect of the disclosed embodiment provides an anti-static chair, comprising a chair body having a plurality of chair legs and the above-mentioned grounding device;

[0025] The grounding device is arranged at the bottom of the chair body; wherein,

[0026] The mass block is used to be placed on the ground at the bottom of the chair body;

[0027] The first end of at least one of the chains is fixedly connected to the mass block, and the second end of at least one of the chains is fixedly connected to the chair leg.

[0028] Optionally, there are multiple chains;

[0029] The first end of each chain is fixedly connected to the mass block, and the second end of each chain is fixedly connected to the corresponding chair leg.

[0030] The grounding device for an anti-static chair and the anti-static chair of the disclosed embodiment include a mass block and at least one chain. The mass block is placed on the ground at the bottom of the anti-static chair, and the first end of the chain is fixedly connected to the mass block, and the second end of the chain is used to be fixedly connected to the chair leg of the anti-static chair. Due to the presence of the mass block, the weight of the entire chain is increased, making it difficult for the chain to become disjointed and broken, thereby avoiding poor contact with the anti-static floor; the two ends of the chain are respectively fixed to the mass block and the chair leg, thereby increasing the grounding stability of the chain, making it difficult for the chain to roll during the movement of the anti-static chair, increasing the contact area with the conductive wire on the anti-static floor, ensuring the grounding effect of the grounding device, and preventing people from stepping on the chain, thereby increasing the reliability of the anti-static chair. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a grounding device in an anti-static chair in the prior art;

[0032] Figure 2 It is a structural schematic diagram of a grounding device for an anti-static chair according to one embodiment of the present disclosure;

[0033] Figure 3 It is a structural schematic diagram of a grounding device for an anti-static chair according to another embodiment of the disclosed embodiments;

[0034] Figure 4 It is a schematic diagram of the assembly structure of a grounding device and an anti-static chair according to another embodiment of the disclosed embodiment;

[0035] Figure 5 This is a schematic structural diagram of an anti-static chair according to another embodiment of the present disclosure. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, the embodiments of the present disclosure are further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] like Figures 2 to 4 As shown, one aspect of an embodiment of the present disclosure provides a grounding device 100 for an anti-static chair, wherein the grounding device 100 is used to be arranged at the bottom of the anti-static chair 200 , and the grounding device 100 includes a mass block 110 and at least one chain 120 .

[0038] The mass block 110 is used to be placed on the ground and is located at the bottom of the anti-static chair 200 .

[0039] The first end of the chain 120 is fixedly connected to the mass block 110, and the second end of the chain 120 is used to be fixedly connected to the chair leg of the anti-static chair 200. Both ends of the chain 120 are fixed, which can prevent the anti-static chair 200 from rotating due to the dragging of the chain when it moves, thereby making the chain 120 better fit the ground and achieve a grounding effect.

[0040] The chain 120 is used to fit the ground to transfer the static electricity of the anti-static chair 200 to the ground. Specifically, in the embodiment, the chain 120 is fully in contact with the conductive wire of the anti-static floor to form a ground, thereby transferring the static electricity of the anti-static chair 200 to the ground.

[0041] It should be noted that, in this embodiment, the first end of the chain 120 can be welded and fixed to the mass block 110. The second end of the chain 120 can also be welded and fixed to the chair leg. Of course, the two ends of the chain 120 can also be fixed by other fixing methods, which are not specifically limited in this embodiment and can be selected according to actual needs.

[0042] The grounding device for the anti-static chair of the disclosed embodiment is constructed by placing a mass block on the ground at the bottom of the anti-static chair, and fixing the first end of the chain to the mass block, and fixing the second end of the chain to the chair leg of the anti-static chair. Due to the presence of the mass block, the weight of the entire chain is increased, making it difficult for the chain to become disconnected and broken, thereby avoiding poor contact with the anti-static floor; the two ends of the chain are respectively fixed to the mass block and the chair leg, thereby increasing the grounding stability of the chain, making it difficult for the chain to roll during the movement of the anti-static chair, increasing the contact area with the conductive wire on the anti-static floor, ensuring the grounding effect of the grounding device, and preventing people from stepping on the chain, thereby increasing the reliability of the anti-static chair.

[0043] For example, in this embodiment, the mass block 110 can be a stainless steel mass block. On the one hand, the mass block 110 can increase the weight of the chain 120 and fix the chain 120, and on the other hand, the mass block 110 can fully contact the conductive wire of the anti-static floor to form a ground, thereby transmitting the static electricity of the anti-static chair 200 to the ground.

[0044] It should be noted that the shape of the mass block 110 is not specifically limited in this embodiment and can be as follows: Figures 2 to 4 The circle shown may also be a square, rectangle or triangle, etc., which can be selected according to actual needs.

[0045] It should be further explained that the weight of the mass block 110 is not specifically limited in this embodiment, and the mass block 110 can be 1 kg, 2 kg, etc., and can be selected according to actual needs.

[0046] For example, Figure 4As shown, the second end of the chain 120 is used to be fixedly connected to the end of the chair leg of the antistatic chair 200. This ensures that the chain 120 of sufficient length is grounded, thereby increasing the grounding effect.

[0047] Exemplarily, in this embodiment, there are multiple chains 120 , and the first end of each chain 120 is fixedly connected to the mass block 110 , and the second end of each chain 120 is used to be fixedly connected to the corresponding chair leg.

[0048] Specifically, Figure 4 and Figure 5 As shown, in this embodiment, the number of chains 120 corresponds to the number of legs of the antistatic chair, that is, a chain 120 is provided on each leg.

[0049] In this embodiment, the number of chains is set to be multiple, which can greatly increase the contact area between the chains and the anti-static floor wires, greatly increase the grounding effect of the chains, and thus increase the anti-static effect of the anti-static chair. In addition, both ends of each chain are fixed, so that the chain and the mass block form a whole, which increases the stability of the entire grounding device.

[0050] For example, Figure 2 and Figure 3 As shown, the chain 120 is a rigid flat structure, wherein one side of the chain 120 along its thickness direction is used to fit with the ground.

[0051] In this embodiment, since the chain has a rigid flat structure and one side of the chain along its thickness direction is used to fit the ground, the chain will not rotate due to chain dragging when the anti-static chair moves, thereby ensuring stable contact between the chain and the ground (conductive wire) and ensuring the grounding effect of the grounding device.

[0052] For example, Figure 3 As shown, the chain 120 includes a plurality of annular bodies 121, which are sequentially arranged along the length direction of the chain, and each adjacent two annular bodies 121 are fixedly connected. Specifically, each adjacent two annular bodies 121 can be fixed by welding.

[0053] It should be noted that the shape of the annular body 121 is not specifically limited in this embodiment, and may be circular, elliptical, rectangular, etc., and may be selected according to actual needs.

[0054] For example, Figure 3 As shown, the chain 120 further includes a plurality of connecting rods 122, and each two adjacent ring bodies 121 are fixedly connected by the connecting rods 122. Specifically, in this embodiment, the ring bodies 121 and the connecting rods 122 can be fixed by welding.

[0055] In this embodiment, two adjacent annular bodies are fixedly connected by a connecting rod, which allows a gap between the annular bodies, thereby increasing the length of the chain and allowing the chain to contact more conductive wires.

[0056] Exemplarily, the ring width of the ring 121 is greater than 6 mm. In this embodiment, the ring width of the ring 121 refers to the thickness of the ring 121. The ring width of the ring 121 is greater than 6 mm, so that the ring 121 can better cover the conductive wire on the antistatic floor, so that the chain has a just grounding effect.

[0057] like Figure 5 As shown, another aspect of the embodiment of the present disclosure provides an anti-static chair 200, comprising a chair body 210 having a plurality of chair legs 220 and the above-mentioned grounding device 100. The specific structural features of the grounding device 100 have been described in detail above and will not be repeated here.

[0058] The grounding device 100 is disposed at the bottom of the chair body 210. The mass block 110 is used to be placed on the ground at the bottom of the chair body 210. The first end of at least one chain 120 is fixedly connected to the mass block 110, and the second end of at least one chain 120 is fixedly connected to the chair leg 220.

[0059] The anti-static chair of the disclosed embodiment includes a chair body with chair legs and a grounding device. The grounding device is arranged at the bottom of the chair body. The grounding device includes a mass block and a grounding device of at least one chain, which can achieve a better grounding effect, so that the anti-static chair has a better anti-static effect.

[0060] For example, Figure 5 As shown, there are multiple chains 120, and the first end of each chain 120 is fixedly connected to the mass block 110, and the second end of each chain 120 is fixedly connected to the corresponding chair leg 220. Preferably, in this embodiment, each chair leg 220 is provided with a chain 120, which can maximize the anti-static effect of the anti-static chair.

[0061] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the embodiments of the present disclosure, but the embodiments of the present disclosure are not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the embodiments of the present disclosure, and these modifications and improvements are also considered to be within the protection scope of the embodiments of the present disclosure.

Claims

1. A grounding device for an anti-static chair, the grounding device is used to be arranged at the bottom of the anti-static chair, characterized in that: The grounding device comprises: A mass block, the mass block is used to be placed on the ground and is located at the bottom of the anti-static chair; At least one chain, the first end of the chain is fixedly connected to the mass block, and the second end of the chain is used to be fixedly connected to the chair leg of the anti-static chair; wherein, The chain is used to fit into the ground so as to transfer the static electricity of the anti-static chair to the ground.

2. The grounding device according to claim 1, characterized in that: The mass block is a stainless steel mass block.

3. The grounding device according to claim 1, characterized in that: The second end of the chain is used for fixed connection with the end of the chair leg of the anti-static chair.

4. The grounding device according to any one of claims 1 to 3, characterized in that: The number of the chains is multiple; The first end of each chain is fixedly connected to the mass block, and the second end of each chain is used for fixedly connecting to the corresponding chair leg.

5. The grounding device according to any one of claims 1 to 3, characterized in that: The chain is of a rigid flat structure, wherein one side of the chain along the thickness direction is used to fit against the ground.

6. The grounding device according to any one of claims 1 to 3, characterized in that: The chain includes a plurality of ring-shaped bodies; The plurality of annular bodies are arranged in sequence along the length direction of the chain, and every two adjacent annular bodies are fixedly connected.

7. The grounding device according to claim 6, characterized in that: The chain also includes a plurality of connecting rods, and each two adjacent annular bodies are fixedly connected by the connecting rods.

8. The grounding device according to claim 6, characterized in that: The ring width of the annular body is greater than 6 mm.

9. An anti-static chair, characterized in that: A chair body comprising a plurality of chair legs and a grounding device according to any one of claims 1 to 8; The grounding device is arranged at the bottom of the chair body; wherein, The mass block is used to be placed on the ground at the bottom of the chair body; The first end of at least one of the chains is fixedly connected to the mass block, and the second end of at least one of the chains is fixedly connected to the chair leg.

10. The anti-static chair according to claim 9, characterized in that: The number of the chains is multiple; The first end of each chain is fixedly connected to the mass block, and the second end of each chain is fixedly connected to the corresponding chair leg.

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