Polytetrafluoroethylene anti-static gasket

Abstract

The utility model relates to the technical field of sealing gasket, specifically is a kind of polytetrafluoroethylene anti-static sealing gasket, including outer gasket body, the inner gasket body is clamped and fixed in the inside of outer gasket body, the inside of the inner gasket body is provided with auxiliary support conductive mechanism, the auxiliary support conductive mechanism is arranged in chamber, the auxiliary support conductive mechanism includes polytetrafluoroethylene support column;The utility model designs a chamber in the inner gasket body, and polytetrafluoroethylene support column for supporting is designed in chamber, so that inner gasket body has better sealing performance after compression, simultaneously provide certain deformation space, reduce the aging effect of vibration to gasket, and can be wound a ground wire in the side of any one side conductive sheet, and ground wire is grounded, so that the charge accumulated on the surface of gasket can be guided in time, and the circuit in equipment cannot be punctured due to charge accumulation triggering high-voltage static.

Description

Technical Field

[0001] This utility model relates to the field of sealing gasket technology, specifically a polytetrafluoroethylene antistatic sealing gasket. Background Technology

[0002] Polytetrafluoroethylene (PTFE), with its unparalleled chemical inertness, extremely low coefficient of friction, outstanding non-stick properties, and wide temperature range, has become an indispensable high-performance engineering plastic in modern industry and daily life. Despite some drawbacks in mechanical properties, processability, and high-temperature decomposition, its unique comprehensive properties make it irreplaceable in many key areas such as sealing, corrosion protection, insulation, non-stick properties, medical applications, and textiles. Special care must be taken to avoid the risk of high-temperature decomposition during use.

[0003] Polytetrafluoroethylene (PTFE) is widely used in electrical sealing gaskets due to its electrical insulation and sealing properties. For example, PTFE gaskets are often used to manufacture gaskets for diaphragm pumps. However, because the diaphragm of a diaphragm pump is frequently compressed and reset to create a pressure difference to pump the fluid during operation, the gaskets will age rapidly due to vibration, reducing the lifespan of the diaphragm pump. In addition, PTFE material is not wear-resistant, and PTFE gaskets in diaphragm pumps are prone to wear and aging. Furthermore, existing PTFE gaskets rely solely on their physical properties for anti-static properties and lack a structure that can conduct static electricity away. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, and mainly to solve the problems of reduced lifespan and insufficient antistatic effect caused by vibration, this utility model proposes a polytetrafluoroethylene antistatic sealing gasket.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a polytetrafluoroethylene antistatic sealing gasket, including an outer gasket body, an inner gasket body is snapped and fixed inside the outer gasket body, and an auxiliary support conductive mechanism is provided inside the inner gasket body.

[0006] The inner washer body has a cavity inside, and the auxiliary support conductive mechanism is disposed in the cavity. The auxiliary support conductive mechanism includes a polytetrafluoroethylene (PTFE) support column, which is integrally formed in the cavity. A conductive iron wire is inserted inside the PTFE support column, and the ends of the conductive iron wire are respectively connected to an upper conductive plate and a side conductive plate. The ends of the side conductive plates are connected to a grounding wire.

[0007] Preferably, an annular groove is provided on the inner side of the outer gasket body, and the inner gasket body is engaged with the outer gasket body through the annular groove.

[0008] Preferably, the side wall of the annular slot is provided with a side guide plate through slot, and the end of the side guide plate is engaged in the side guide plate through slot.

[0009] Preferably, the upper and lower sides of the inner washer body are integrally formed with upwardly protruding annular snap-fit ​​portions, and the upper and lower sides of the inner washer body are provided with frustum-shaped guide portions.

[0010] Preferably, the cavity of the inner washer body is arranged in an annular structure, and the upper part of the inner washer body is provided with an upper guide plate through groove, and the upper guide plate is snapped into the upper guide plate through groove.

[0011] Preferably, the inner washer body has a through hole on its side, and the side of the conductive iron wire is inserted through the through hole.

[0012] Preferably, the polytetrafluoroethylene support pillars and conductive iron wires are arranged in a circular array of twelve groups, and connecting iron wires are welded between the conductive iron wires.

[0013] The advantages of this utility model are:

[0014] 1. This utility model designs a chamber in the inner washer body, with a polytetrafluoroethylene support column inside for support. This allows the inner washer body to have better sealing performance after compression, while providing a certain deformation space, reducing the aging effect of vibration on the washer, and solving the problem of easy aging. In addition, the inner washer body is provided with an easy-to-replace and simple-structured outer washer body. The height of the outer washer body is higher than that of the inner washer body, which can protect the inner washer body during friction. When the outer washer body wears down to the inner washer body due to long-term use, it can be quickly replaced.

[0015] 2. This utility model incorporates an auxiliary support conductive mechanism within the cavity of the inner gasket body. After the gasket is installed, the upper conductive sheet and the side conductive sheet are exposed outside the entire combined gasket. A thin wire is wound around the side of any one of the side conductive sheets and grounded. This ensures that the charge accumulated on the gasket surface is promptly grounded, preventing the accumulation of charge from triggering high-voltage static electricity and causing circuit breakdown in the equipment. This solves the problem of lacking a structure capable of conducting static electricity away. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the outer gasket body of this utility model;

[0019] Figure 3 This is a schematic diagram of the auxiliary support conductive mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the inner washer body of this utility model;

[0021] Figure 5 This is a cross-sectional structural diagram of the inner washer body of this utility model.

[0022] In the figure: 1. Outer gasket body; 2. Inner gasket body; 3. Auxiliary support conductive mechanism; 101. Annular groove; 102. Side guide plate through groove; 201. Chamber; 202. Snap-fit ​​part; 203. Guide part; 204. Upper guide plate through groove; 205. Through hole; 301. Polytetrafluoroethylene support; 302. Conductive iron wire; 303. Upper conductive plate; 304. Side conductive plate; 305. Connecting iron wire. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0025] This application discloses a polytetrafluoroethylene (PTFE) antistatic sealing gasket. (Refer to...) Figure 1 and Figure 2 A polytetrafluoroethylene antistatic sealing gasket includes an outer gasket body 1, an inner gasket body 2 that is snapped and fixed inside the outer gasket body 1, and an auxiliary support conductive mechanism 3 that is provided inside the inner gasket body 2.

[0026] The inner gasket body 2 has a cavity 201 inside, and the auxiliary support conductive mechanism 3 is disposed in the cavity 201. The auxiliary support conductive mechanism 3 includes a polytetrafluoroethylene (PTFE) support column 301, which is integrally formed in the cavity 201. A conductive iron wire 302 is inserted inside the PTFE support column 301, and the ends of the conductive iron wire 302 are respectively connected to an upper conductive plate 303 and a side conductive plate 304. The ends of the side conductive plates 304 are connected to a grounding wire 306. The grounding wire 306 can be connected to any one of the side conductive plates 304, and the end of the grounding wire 306 is connected to the outer shell of the equipment or directly grounded.

[0027] Reference Figure 1 and Figure 2 An annular groove 101 is provided on the inner side of the outer gasket body 1. The inner gasket body 2 is engaged with the outer gasket body 1 through the annular groove 101. The inner gasket body 2 is engaged with the outer gasket body 1 through the annular groove 101. The outer gasket body 1 is higher than the inner gasket body 2, so that the outer gasket body 1 protects the inner gasket body 2. The outer gasket body 1 can also be quickly replaced after excessive wear.

[0028] Reference Figure 1 and Figure 2 The side wall of the annular groove 101 is provided with a side guide plate through groove 102. The end of the side conductive plate 304 is engaged in the side guide plate through groove 102. During assembly, by engaging the side conductive plate 304 in the side guide plate through groove 102, the outer gasket body 1 and the inner gasket body 2 will not slide relative to each other. This allows the inner gasket body 2 to better perform its sealing and anti-static functions.

[0029] Reference Figure 1 and Figure 4 The inner gasket body 2 has an integrally formed annular snap-fit ​​portion 202 with an upward protrusion on both the upper and lower sides. The inner gasket body 2 has a frustum-shaped guide portion 203 on both the upper and lower sides. The snap-fit ​​portion 202 can snap onto the inner side of the outer gasket body 1. By setting the guide portion 203, the inner gasket body 2 can be better installed on the diaphragm pump.

[0030] Reference Figure 4 and Figure 5 The inner gasket body 2 has a ring-shaped cavity 201, and the upper part of the inner gasket body 2 has an upper guide plate through groove 204. The upper conductive plate 303 is snapped into the upper guide plate through groove 204. By setting the cavity 201, the deformation of the inner gasket body 2 under compression can be increased, thereby improving the sealing performance of the assembled gasket.

[0031] Reference Figure 3 and Figure 5The inner washer body 2 has a through hole 205 on its side, and the side of the conductive iron wire 302 is inserted through the through hole 205. By setting the through hole 205, the position of the auxiliary support conductive mechanism 3 can be fixed.

[0032] Reference Figure 1 and Figure 5 The polytetrafluoroethylene support column 301 and the conductive iron wire 302 are arranged in a ring array of twelve groups, and the conductive iron wire 302 are welded together with connecting iron wire 305. By setting the polytetrafluoroethylene support column 301, the pressure resistance of the combined gasket is improved, and the life of the gasket under high frequency vibration is improved. The connecting iron wire 305 can disperse the charge on different conductive iron wires 302, thereby reducing the adverse effects of charge on electrical appliances.

[0033] Working principle: Before installation, the outer gasket body 1 and the inner gasket body 2 need to be combined. Specifically, first, flip open the outer gasket body 1 and insert the side conductive piece 304 into the side guide piece through groove 102. Then, flip the outer gasket body 1 again and cover the snap-fit ​​part 202 of the inner gasket body 2. Then, place the combined gasket in the place that needs to be sealed through the guide part 203. Then, wrap a grounding wire 306 around the side of any side conductive piece 304. The grounding wire 306 passes through the side guide piece through groove 102. Then, pass the grounding wire 306 out from the side of the sealing place and finally ground it. When the outer gasket body 1 is excessively worn, remove the inner gasket body 2 and replace it with a new outer gasket body 1.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A polytetrafluoroethylene antistatic sealing gasket, comprising an outer gasket body (1), characterized in that: The inner washer body (2) is snapped and fixed inside the outer washer body (1), and the inner washer body (2) is provided with an auxiliary support conductive mechanism (3). The inner washer body (2) has a cavity (201) inside. The auxiliary support conductive mechanism (3) is set in the cavity (201). The auxiliary support conductive mechanism (3) includes a polytetrafluoroethylene support column (301). The polytetrafluoroethylene support column (301) is integrally formed in the cavity (201). A conductive iron wire (302) is inserted inside the polytetrafluoroethylene support column (301). The ends of the conductive iron wire (302) are respectively connected to an upper conductive plate (303) and a side conductive plate (304). The ends of the side conductive plate (304) are connected to a grounding wire (306).

2. The polytetrafluoroethylene antistatic sealing gasket according to claim 1, characterized in that: The inner side of the outer gasket body (1) is provided with an annular groove (101), and the inner gasket body (2) is engaged with the outer gasket body (1) through the annular groove (101).

3. The polytetrafluoroethylene antistatic sealing gasket according to claim 2, characterized in that: The annular slot (101) has a side guide plate through slot (102) on its side wall, and the end of the side guide plate (304) is engaged in the side guide plate through slot (102).

4. The polytetrafluoroethylene antistatic sealing gasket according to claim 1, characterized in that: The inner washer body (2) has an integrally formed annular snap-fit ​​portion (202) with an upward protrusion on both the upper and lower sides, and a frustum-shaped guide portion (203) is provided on the upper and lower sides of the inner washer body (2).

5. The polytetrafluoroethylene antistatic sealing gasket according to claim 1, characterized in that: The cavity (201) of the inner washer body (2) is arranged in an annular structure, and the upper part of the inner washer body (2) is provided with an upper guide plate through groove (204), and the upper conductive plate (303) is snapped into the upper guide plate through groove (204).

6. The polytetrafluoroethylene antistatic sealing gasket according to claim 1, characterized in that: The inner washer body (2) has a through hole (205) on its side, and the side of the conductive iron wire (302) is inserted into the through hole (205).

7. The polytetrafluoroethylene antistatic sealing gasket according to claim 1, characterized in that: The polytetrafluoroethylene support (301) and the conductive iron wire (302) are arranged in a ring array of twelve groups, and the conductive iron wire (302) are welded together with connecting iron wire (305).

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