Anti-static bracelet for hazardous chemical tank area

Abstract

This utility model relates to the field of antistatic wristband technology, and in particular to an antistatic wristband for use in hazardous chemical tank farms. The antistatic wristband for hazardous chemical tank farms includes: a connecting wire, a wristband, a pressure cap, a diaphragm, a film-pulling assembly, a control assembly, a grounding assembly, and a magnetic attractant. The connecting wire is electrically connected to the wristband. The pressure cap has a movable cavity and a guide hole, and abuts against the diaphragm. The movable cavity communicates with the guide hole. The diaphragm is connected to the film-pulling assembly and has an adsorption cavity. The film-pulling assembly is movably inserted through the guide hole and connected to the control assembly. The control assembly drives the film-pulling assembly to pull the diaphragm within the movable cavity. The grounding assembly has a grounding surface and is slidably connected to the film-pulling assembly. The grounding surface is located within the adsorption cavity. The magnetic attractant is installed on the grounding assembly. This utility model's antistatic wristband for hazardous chemical tank farms facilitates the adsorption of the diaphragm onto the grounding plane through the cooperation of the pressure cap and the diaphragm, thereby improving the connection stability between the antistatic wristband and the grounding equipment.

Description

Technical Field

[0001] This utility model relates to the field of antistatic wristband technology, and in particular to an antistatic wristband for use in hazardous chemical tank farms. Background Technology

[0002] In the production and storage of hazardous chemicals, static electricity control is a crucial safety aspect. To reduce the hazards of static electricity, operators are generally required to wear anti-static wrist straps, such as... Figure 1 As shown, an anti-static wrist strap typically consists of a connector, a wristband, and a connecting wire. In use, it is plugged into a grounding terminal via a cylindrical plug at the connector to discharge static electricity. Traditional technologies, such as the utility model patent with application number CN202122959420.0, disclose an anti-static wrist strap for data centers. This wrist strap has a magnetic block on the connector for adsorbing onto the grounded object. The magnetic force of the magnetic block attracts the connector to the grounded equipment, increasing the connector's connection capability and improving connection convenience. However, in hazardous chemical tank areas, operators wearing anti-static wrist straps need to make large movements, and the magnetic force of the magnetic block is insufficient to firmly attract the connector to the grounded equipment, causing the anti-static wrist strap to fail. This presents a technical problem of poor connection stability between the anti-static wrist strap and the grounded equipment. Utility Model Content

[0003] The purpose of this application is to provide an anti-static wrist strap for use in hazardous chemical tank farms, so as to solve the technical problem of poor connection stability between the anti-static wrist strap and the grounding equipment in the prior art.

[0004] An antistatic wrist strap for use in hazardous chemical tank areas includes: a connecting wire, a wristband, a pressure cap, a diaphragm, a film-pulling assembly, a control assembly, a grounding assembly, and a magnetic absorbing component. The connecting wire is electrically connected to the wristband. The pressure cap has a movable cavity and a guide hole and abuts against the diaphragm. The movable cavity communicates with the guide hole. The diaphragm is connected to the film-pulling assembly and has an adsorption cavity. The film-pulling assembly movably passes through the guide hole and is connected to the control assembly. The control assembly drives the film-pulling assembly to pull the diaphragm within the movable cavity to expand the space of the adsorption cavity. The grounding assembly has a grounding surface and is slidably connected to the film-pulling assembly. The grounding surface is located within the adsorption cavity. The magnetic absorbing component is mounted on the grounding assembly and disposed within the adsorption cavity. The magnetic absorbing component has a magnetic surface, and the magnetic surface is on the same plane as the grounding surface. The grounding assembly is electrically connected to the film-pulling assembly, the film-pulling assembly is electrically connected to the control assembly, and the control assembly is electrically connected to the connecting wire.

[0005] In one embodiment, the membrane stretching assembly includes a pull rod and a pin, the outer wall of the pull rod being threadedly connected to the control assembly, and the pin being inserted into the pull rod and clamping the membrane with the pull rod.

[0006] In one embodiment, the pin includes a compression piece and a plug, the compression piece being connected to the plug and clamping the diaphragm with the pull rod, the plug being inserted into the control component.

[0007] In one embodiment, the plug gradually contracts away from the compression piece.

[0008] In one embodiment, the pin has a sliding hole and a through hole, the sliding hole and the through hole are connected, the diameter of the through hole is smaller than the diameter of the sliding hole, and the grounding component passes through the through hole and is slidably connected to the sliding hole.

[0009] In one embodiment, the grounding assembly includes a sliding post, a connecting rod, and a bolt. The sliding post is slidably connected to the sliding hole, the connecting rod passes through the through hole and is connected to the bolt, and the bolt has the grounding surface and clamps the magnetic attractor with the connecting rod.

[0010] In one embodiment, the magnetic attractor is provided with a mounting hole and a countersunk hole, the bolt passes through the mounting hole and connects to the connecting rod, and part of the bolt is embedded in the countersunk hole.

[0011] In one embodiment, the control component includes a knob and a connector, the knob being threadedly connected to the membrane assembly, the connector contacting the knob and being electrically connected to the connecting wire.

[0012] In one embodiment, the gland is provided with an annular groove, and the connector is rotatably disposed within the annular groove.

[0013] In one embodiment, the pressure cap includes a cover body and a sealing gasket. The cover body has the movable cavity and the guide hole. The sealing gasket is connected to the cover body and abuts against the diaphragm.

[0014] The beneficial effects of the antistatic wrist strap for hazardous chemical tank farms provided in this application are as follows:

[0015] 1. The control component drives the membrane pulling component to move the membrane within the active cavity, thereby expanding the space of the adsorption cavity. This facilitates the adhesion between the pressure cap and the membrane, allowing the membrane to be adsorbed onto the plane of the grounding end, thus improving the connection stability between the antistatic wristband and the grounding equipment.

[0016] 2. The grounding component and the membrane assembly are slidably connected. The magnetic surface of the magnetic attractor and the grounding surface of the grounding component are on the same plane. The grounding component is electrically connected to the membrane assembly, the membrane assembly is electrically connected to the control component, and the control component is electrically connected to the connecting wire. This method facilitates the rapid magnetic attraction between the magnetic attractor and the grounding end, and makes the grounding surface on the same plane conductive with the grounding end. With the cooperation of the grounding component, the membrane assembly, and the control component, the static electricity on the wristband is released by the cooperation of the control component and the connecting wire. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the antistatic wristband shown in the background art of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the antistatic wrist strap for hazardous chemical tank areas shown in this utility model;

[0019] Figure 3 for Figure 2 The diagram shows an enlarged view of part A of the anti-static wrist strap used in the hazardous chemical tank area.

[0020] Figure 4 for Figure 3 The diagram shows a cross-sectional view of the anti-static wrist strap used in the hazardous chemical tank area.

[0021] Figure 5 for Figure 4 The diagram shows an exploded view of the grounding assembly and magnetic attachment of an anti-static wrist strap used in hazardous chemical tank areas.

[0022] The meanings of the numbers in the attached diagram are as follows:

[0023] 100. Anti-static wrist straps for use in hazardous chemical tank areas;

[0024] 10. Connecting cable;

[0025] 20. Wristband;

[0026] 30. Gland; 31. Movable cavity; 32. Guide hole; 33. Cover body; 331. Annular groove; 34. Sealing gasket;

[0027] 40. Membrane; 41. Adsorption chamber;

[0028] 50. Membrane stretching assembly; 51. Pull rod; 52. Pin; 521. Extrusion plate; 522. Plug; 523. Sliding hole; 524. Through hole;

[0029] 60. Control component; 61. Knob; 62. Connector;

[0030] 70. Grounding component; 71. Grounding ground; 72. Sliding post; 73. Connecting rod; 74. Bolt;

[0031] 80. Magnetic suction element; 81. Magnetic suction surface; 82. Mounting hole; 83. Countersunk hole. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of 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 at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0038] like Figure 2 As shown, it is the antistatic wristband 100 for use in hazardous chemical tank areas according to this utility model.

[0039] like Figures 3 to 4As shown, the antistatic wrist strap 100 for hazardous chemical tank areas includes: a connecting wire 10, a wristband 20, a pressure cap 30, a diaphragm 40, a film-pulling assembly 50, a control assembly 60, a grounding assembly 70, and a magnetic suction element 80. The connecting wire 10 is electrically connected to the wristband 20. The pressure cap 30 has a movable cavity 31 and a guide hole 32, and abuts against the diaphragm 40. The movable cavity 31 communicates with the guide hole 32. The diaphragm 40 is connected to the film-pulling assembly 50 and has an adsorption cavity 41. The film-pulling assembly 50 movably passes through the guide hole 32 and is connected to the control assembly 60. The control assembly 60 drives the film-pulling assembly 50. The membrane 40 is pulled to move within the movable cavity 31 to expand the space of the adsorption cavity. The grounding component 70 has a grounding surface 71 and is slidably connected to the membrane pulling component 50. The grounding surface 71 is located within the adsorption cavity. The magnetic suction component 80 is mounted on the grounding component 70 and disposed within the adsorption cavity. The magnetic suction component 80 has a magnetic suction surface 81, which is on the same plane as the grounding surface 71. The grounding component 70 is electrically connected to the membrane pulling component 50, the membrane pulling component 50 is electrically connected to the control component 60, and the control component 60 is electrically connected to the connecting line 10. The antistatic wristband 100 for hazardous chemical tank areas of this application uses a control component 60 to drive a membrane-pulling component 50 to pull a diaphragm 40 within an active cavity 31, thereby expanding the space of the adsorption cavity. This facilitates the adhesion between the pressure cap 30 and the diaphragm 40, allowing the diaphragm 40 to adhere to the grounding end's plane, thus improving the connection stability between the antistatic wristband and the grounding equipment. Furthermore, the grounding component 70 is slidably connected to the membrane-pulling component 50, with the magnetic surface 81 of the magnetic attractor 80 and the grounding surface 71 of the grounding component 70 on the same plane. The grounding component 70 is electrically connected to the membrane-pulling component 50, the membrane-pulling component 50 is electrically connected to the control component 60, and the control component 60 is electrically connected to the connecting wire 10. This facilitates rapid magnetic attraction between the magnetic attractor 80 and the grounding end, and ensures that the grounding surface 71 on the same plane is conductive to the grounding end. With the cooperation of the grounding component 70, the membrane-pulling component 50, and the control component 60, the static electricity on the wristband 20 is released through the cooperation of the control component 60 and the connecting wire 10.

[0040] The following text, combined with Figures 2 to 5 Further explanation is provided regarding the use of antistatic wrist strap 100 in the aforementioned hazardous chemical tank area.

[0041] like Figure 4 As shown, the pressure cap 30 includes a cap body 33 and a sealing gasket 34. The cap body 33 is provided with the movable cavity 31 and the guide hole 32. The movable cavity 31 communicates with the guide hole 32. The sealing gasket 34 is connected to the cap body 33 and abuts against the diaphragm 40.

[0042] like Figure 4As shown, the membrane pulling assembly 50 includes a pull rod 51 and a pin 52. The outer wall of the pull rod 51 is threadedly connected to the control assembly 60. The pin 52 is inserted into the pull rod 51 and clamps the membrane 40 with the pull rod 51. By rotating the control assembly 60, the pull rod 51 and the pin 52 can be pulled, so that the pull rod 51 and the pin 52 can drive the membrane 40 to move within the movable cavity 31.

[0043] Specifically, such as Figure 4 As shown, the pin 52 includes a compression piece 521 and a plug 522. The compression piece 521 is connected to the plug 522 and clamps the diaphragm 40 with the pull rod 51. The plug 522 is inserted into the control component 60. The plug 522 gradually retracts away from the compression piece 521. The gradually retracting plug 522 facilitates insertion into the pull rod 51 and ensures that the outer wall of the plug 522 fully abuts against the inner wall of the pull rod 51.

[0044] like Figure 4 As shown, the pin 52 has a sliding hole 523 and a through hole 524. The sliding hole 523 communicates with the through hole 524. The diameter of the through hole 524 is smaller than the diameter of the sliding hole 523. The grounding component 70 passes through the through hole 524 and is slidably connected to the sliding hole 523. Correspondingly, as... Figure 5 As shown, the grounding assembly 70 includes a sliding post 72, a connecting rod 73, and a bolt 74. The sliding post 72 is slidably connected to the sliding hole 523. The connecting rod 73 passes through the through hole 524 and is connected to the bolt 74. The bolt 74 has the grounding surface 71 and clamps the magnetic suction member 80 with the connecting rod 73. The magnetic suction member 80 is provided with a mounting hole 82 and a countersunk hole 83. The bolt 74 passes through the mounting hole 82 and is connected to the connecting rod 73, and a portion of the bolt 74 is embedded in the countersunk hole 83.

[0045] like Figure 4 As shown, the control component 60 includes a knob 61 and a connector 62. The knob 61 is threadedly connected to the film stretching component 50. The connector 62 contacts the knob 61 and is electrically connected to the connecting line 10. In order to increase the degree of freedom of the connector 62, the cover body 33 of the pressure cap 30 is provided with an annular groove 331. The connector 62 is rotatably disposed in the annular groove 331.

[0046] When using the antistatic wristband 100 for hazardous chemical tank areas provided in this application: wear the wristband 20, then control the magnetic suction component 80 to contact the grounding terminal, so that the grounding ground surface 71 of the grounding component 70 is connected to the grounding terminal. Next, control the diaphragm 40 to adhere to the grounding terminal, and rotate the knob 61 of the control component 60 to make the membrane pulling component 50 pull the diaphragm 40 to move within the movable cavity 31 to expand the space of the adsorption cavity. The sealing gasket 34 of the pressure cap 30 is used to hold the diaphragm 40 against it, so that the diaphragm 40 is tightly adsorbed on the grounding terminal. When the wristband 20 absorbs static electricity, it is conducted to the connector 62 of the control component 60 through the connecting wire 10, and then from the connector 62 through the knob 61, the pull rod 51 of the membrane pulling component 50, the pin 52, the sliding column 72 and the connecting rod 73 in sequence, and finally the grounding ground surface 71 of the bolt 74 releases the static electricity to the grounding terminal to achieve the release of static electricity.

[0047] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An antistatic wrist strap for use in hazardous chemical tank farms, comprising: A connecting wire and a wristband connecting the connecting wire, characterized in that it further comprises: a pressure cap, a diaphragm, a film-pulling assembly, a control assembly, a grounding assembly, and a magnetic suction element. The pressure cap has a movable cavity and a guide hole, and abuts against the diaphragm. The movable cavity communicates with the guide hole. The diaphragm is connected to the film-pulling assembly and has an adsorption cavity. The film-pulling assembly movably passes through the guide hole and is connected to the control assembly. The control assembly drives the film-pulling assembly to pull the diaphragm within the movable cavity to expand the space of the adsorption cavity. The grounding assembly has a grounding surface and is slidably connected to the film-pulling assembly. The grounding surface is located within the adsorption cavity. The magnetic suction element is mounted on the grounding assembly and disposed within the adsorption cavity. The magnetic suction element has a magnetic surface, and the magnetic surface and the grounding surface are on the same plane. The grounding assembly is electrically connected to the film-pulling assembly, the film-pulling assembly is electrically connected to the control assembly, and the control assembly is electrically connected to the connecting wire.

2. The antistatic wrist strap for hazardous chemical tank farms according to claim 1, characterized in that, The membrane stretching assembly includes a pull rod and a pin. The outer wall of the pull rod is threadedly connected to the control assembly. The pin is inserted into the pull rod and clamps the membrane with the pull rod.

3. The antistatic wrist strap for hazardous chemical tank farms according to claim 2, characterized in that, The pin includes a compression piece and a plug. The compression piece is connected to the plug and clamps the diaphragm with the pull rod. The plug is inserted into the control component.

4. The antistatic wrist strap for hazardous chemical tank farms according to claim 3, characterized in that, The plug gradually contracts away from the extrusion plate.

5. The antistatic wrist strap for hazardous chemical tank farms according to claim 2, characterized in that, The pin has a sliding hole and a through hole. The sliding hole communicates with the through hole. The diameter of the through hole is smaller than the diameter of the sliding hole. The grounding component passes through the through hole and is slidably connected to the sliding hole.

6. The antistatic wrist strap for hazardous chemical tank farms according to claim 5, characterized in that, The grounding assembly includes a sliding column, a connecting rod, and a bolt. The sliding column is slidably connected to the sliding hole. The connecting rod passes through the through hole and is connected to the bolt. The bolt has the grounding surface and clamps the magnetic attractor with the connecting rod.

7. The antistatic wrist strap for hazardous chemical tank farms according to claim 6, characterized in that, The magnetic connector has a mounting hole and a countersunk hole. The bolt passes through the mounting hole and connects to the connecting rod, and part of the bolt is embedded in the countersunk hole.

8. The antistatic wrist strap for hazardous chemical tank farms according to claim 1, characterized in that, The control component includes a knob and a connector. The knob is threadedly connected to the membrane assembly, and the connector contacts the knob and is electrically connected to the connecting wire.

9. The antistatic wrist strap for hazardous chemical tank farms according to claim 8, characterized in that, The pressure cap is provided with an annular groove, and the connector is rotatably disposed within the annular groove.

10. The antistatic wrist strap for hazardous chemical tank farms according to claim 1, characterized in that, The pressure cap includes a cover body and a sealing gasket. The cover body is provided with the movable cavity and the guide hole. The sealing gasket is connected to the cover body and abuts against the diaphragm.

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