Explosion-proof forklift electrostatic discharge device

Abstract

The utility model discloses an explosion-proof forklift electrostatic discharge device which comprises a substrate electrically connected with an explosion-proof forklift and further comprises a clamping assembly arranged on the upper portion of the substrate. The machine shell is installed on the upper portion of the base plate through a clamping assembly, and the machine shell is electrically connected with the base plate through the clamping assembly; the pay-off assembly is arranged in the machine shell; the grounding assembly is fixedly mounted at the tail end of the wire pipe of the pay-off assembly; the clamping assembly comprises a bottom plate fixed to the lower portion of the machine shell and a clamping piece fixed to the lower portion of an insertion rod fixed to the lower portion of the bottom plate in an inserted mode, and the lower portion of the clamping piece is fixed into the base plate in an inserted mode. Static electricity is guided into the grounding assembly through the line pipe in the machine shell, the rolling ball in the grounding assembly is in rolling contact with the ground to release the static electricity, the sponge ball in the rolling ball absorbs liquid in the water tank and then seeps, the ground is evenly wetted through the rolling ball through hole to form a conductive film, and the grounding area and the conductive stability are improved. Static electricity of the explosion-proof forklift can be continuously and effectively released.

Description

Technical Field

[0001] This utility model belongs to the field of electrostatic discharge treatment technology, and in particular relates to an electrostatic discharge device for explosion-proof forklifts. Background Technology

[0002] An explosion-proof forklift electrostatic discharge device is a key safety protection measure used to prevent sparks and safety accidents caused by static electricity accumulation in flammable and explosive environments. It mainly involves installing conductive elements, grounding devices, or electrostatic dischargers in key parts of the forklift structure to quickly and effectively conduct static electricity generated during forklift operation, such as tire-ground friction and cargo handling, to the ground. This reduces the risk of discharge sparks due to charge accumulation, effectively ensuring operational safety in special working environments such as petrochemical, chemical, pharmaceutical, and dusty workshops, improving the explosion-proof rating of forklifts and the inherent safety management level of enterprises, and preventing fire and explosion hazards.

[0003] Traditional electrostatic discharge devices are mostly fixed to the forklift body with bolts. Although they have basic conductivity and fixing functions, they require frequent disassembly of nuts during maintenance or replacement in long-term operation and complex working environments, which is cumbersome and time-consuming. Because the metal threads are subjected to external forces and environmental moisture for a long time, they are prone to stripping, thread wear, or even failure to disassemble. If maintenance is not carried out for a long time, the connection between the nut and the forklift can be corroded, oxidized, or stuck, causing the device to fail or the electrostatic discharge to be ineffective, which greatly increases the safety hazards at the work site. Therefore, it is necessary to optimize and improve its structure and installation method. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides an explosion-proof forklift electrostatic discharge device, which solves the problem of stripped threads caused by frequent nut replacements in the maintenance room.

[0005] This utility model is implemented as follows: an explosion-proof forklift electrostatic discharge device includes a base plate for fixing at the discharge position of the explosion-proof forklift and electrically connected to the explosion-proof forklift; it also includes: a snap-fit ​​assembly disposed on the upper part of the base plate; a housing, which is mounted on the upper part of the base plate via the snap-fit ​​assembly to enable quick disassembly, installation, and maintenance of the housing, and the housing is electrically connected to the base plate via the snap-fit ​​assembly; a wire feeding assembly disposed inside the housing; and a grounding assembly fixedly installed at the end of the wire conduit of the wire feeding assembly, and the grounding assembly is electrically connected to the housing via the wire conduit; wherein, the snap-fit ​​assembly includes a base plate fixed to the lower part of the housing, and a snap-fit ​​member fixed inside the base plate is inserted into the lower part of a rod fixed to the lower part of the base plate.

[0006] As a preferred embodiment of the present invention, the upper part of the substrate is provided with a groove, the bottom plate is slidably connected to the groove, and a top plate is slidably installed in the groove of the substrate by a first spring, the upper part of the top plate is in contact with and electrically connected to the bottom plate.

[0007] As a preferred embodiment of this utility model, the snap-fit ​​component includes an air tube, a piston rod is elastically installed inside the air tube, an arc-shaped strip is fixedly connected to one end of the piston rod, and the arc-shaped strip is movably inserted into a limiting groove opened outside the insert rod.

[0008] As a preferred embodiment of this utility model, a guide ring is slidably installed at the limiting groove position of the insertion rod; in use, pressing the housing causes the insertion rod to be inserted into the through hole of the substrate and the arc-shaped strip to retract and then be inserted into the limiting groove to perform a limiting action; pressing the housing again causes the insertion rod to move downward through the guide ring, and the guide ring is forced to move downward and guide, so that the insertion rod can be pulled out.

[0009] As a preferred embodiment of this invention, a screw is rotatably mounted inside the air pipe fixed inside the substrate, and one end of the screw extends through the air pipe to the outside and is fixedly connected to a knob.

[0010] In a preferred embodiment of this invention, the piston rod is slidably mounted on one side of a slider inside the trachea via a second spring, and a channel is provided inside the slider.

[0011] In a preferred embodiment of this invention, the upper part of the air pipe is connected to the jet gap of the arc-shaped plate through a transmission pipe; when the piston rod retracts, the compressed gas inside the air pipe is ejected through the jet gap of the arc-shaped plate to perform a jet dust removal action on the inserted rod.

[0012] In a preferred embodiment of this invention, the wire feeding assembly includes a winding wheel, which is rotatably mounted inside the housing. A wire tube is wound around the outside of the winding wheel, with one end of the wire tube fixed to the outside of the winding wheel and the other end of the wire tube extending through the gap between two guide wheels rotatably mounted on the upper part of the housing and fixedly connected to the grounding assembly. The wire tube is composed of a metal mesh tube and a rubber tube, with the rubber tube located inside the metal mesh tube. The metal mesh tube, in conjunction with the rubber tube, is used for liquid transport and conductivity. A nut is screwed onto the shaft of the winding wheel, which extends through the housing to the outside. When the nut rotates and comes into contact with the housing, it limits the movement of the winding wheel.

[0013] As a preferred embodiment of this utility model, a water tank is fixedly installed on the upper part of the housing, and the lower output end of the water tank is connected to the conduit through the housing and the winding wheel; a transparent plate is embedded on one side of the water tank for observing the liquid level inside the water tank, and a cover is screwed onto the upper part of the water tank.

[0014] In a preferred embodiment of this invention, the grounding assembly includes a support frame screwed to one end of the conduit, a ball rotatably mounted inside the support frame and a sponge ball fixedly installed inside the ball, the inner cavity of the ball communicating with the conduit, and a plurality of through holes for leakage being opened on the outside of the ball.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention, while maintaining the traditional electrostatic discharge function, combines a water tank supply and a rolling ball liquid permeation grounding structure, which greatly improves the continuity and reliability of electrostatic discharge.

[0017] Its modular snap-fit ​​structure replaces the traditional bolt fixing method, realizing one-click disassembly and assembly without tools, avoiding maintenance troubles caused by stripping, corrosion, etc.; the conduit adopts a composite structure of metal mesh and rubber tube, which maintains flexibility while having good conductivity and liquid transport capacity; the rolling ball structure can roll to contact the ground, reducing the risk of local wear, and works with sponge balls to allow liquid penetration, and works with through hole structure to continuously release conductive liquid, forming a larger and more stable grounding contact surface;

[0018] The water tank is equipped with a transparent observation plate and a spiral cover for easy maintenance and refilling. The overall device has a compact structure, is easy to maintain, and has a reliable conductive path. It is suitable for various explosion-proof forklifts to discharge static electricity, improving the safety of forklift operation and extending the service life of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the snap-fit ​​assembly structure provided in an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the snap-fit ​​structure provided in an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the trachea cross-sectional structure provided in an embodiment of this utility model;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the arc-shaped strip provided in this embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the internal structure of the housing provided in an embodiment of this utility model;

[0025] Figure 7 This is a schematic diagram of the nut structure provided in an embodiment of the present invention;

[0026] Figure 8This is a schematic diagram of the cross-sectional structure of the rolling ball provided in an embodiment of this utility model.

[0027] In the diagram: 1. Base plate; 2. Snap-fit ​​assembly; 3. Housing; 4. Cable delivery assembly; 5. Water tank; 6. Grounding assembly; 7. Box cover; 8. Transparent plate;

[0028] 201. First spring; 202. Top plate; 203. Insert rod; 204. Snap-fit ​​component; 205. Transmission pipe; 206. Base plate; 207. Guide ring; 208. Limiting groove;

[0029] 2041. Trachea; 2042. Piston rod; 2043. Arc-shaped strip; 2044. Jet gap; 2045. Knob; 2046. Screw; 2047. Slider; 2048. Second spring;

[0030] 401. Winding reel; 402. Conduit; 403. Guide wheel; 404. Nut;

[0031] 601, support frame; 602, rolling ball; 603, through hole; 604, sponge ball. Detailed Implementation

[0032] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0033] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0034] like Figures 1 to 8 As shown in the figure, an embodiment of the present invention provides an electrostatic discharge device for an explosion-proof forklift, including a base plate 1 for fixing at the discharge position of the explosion-proof forklift and electrically connected to the explosion-proof forklift, and further including: a snap-fit ​​assembly 2 disposed on the upper part of the base plate 1; a housing 3, which is mounted on the upper part of the base plate 1 through the snap-fit ​​assembly 2 to realize quick disassembly, installation and maintenance of the housing 3, and the housing 3 is electrically connected to the base plate 1 through the snap-fit ​​assembly 2; a wire feeding assembly 4 disposed inside the housing 3; and a grounding assembly 6, which is fixedly installed at the end of the wire conduit 402 of the wire feeding assembly 4 and is electrically connected to the housing 3 through the wire conduit 402; wherein, the snap-fit ​​assembly 2 includes a base plate 206 fixed to the lower part of the housing 3, and a snap-fit ​​member 204 fixed inside the base plate 1 is inserted into the lower part of the insertion rod 203 fixed to the lower part of the base plate 206.

[0035] The aforementioned explosion-proof forklift electrostatic discharge device effectively solves the problems of frequent disassembly, thread stripping, and rust adhesion caused by the bolt fixing method in traditional devices through structural innovation;

[0036] Specifically, it includes a base plate 1 fixed at the discharge position of the explosion-proof forklift, which serves as the mounting base of the overall device and is electrically connected to the forklift to ensure effective conduction of static electricity; a snap-fit ​​assembly 2 is provided on its upper part, which includes a base plate 206 fixed at the lower part of the housing 3, and a plug rod 203 installed at the lower part of the base plate 206 and inserted into the base plate 1. The lower part of the plug rod 203 is inserted and fixed with the snap-fit ​​member 204 inside the base plate 1, thereby forming a modular connection method that can be quickly installed and removed without tools;

[0037] The housing 3 serves as an external protective cover for the device. It is installed on the upper part of the base plate 1 through the snap-fit ​​assembly 2. During the installation and removal process, there is no need to remove the screws of the base plate 1. Simply plug and unplug the snap-fit ​​structure to complete the disassembly and reassembly of the housing 3, which greatly simplifies the maintenance steps and avoids the problems of stripping and rusting caused by repeated disassembly and reassembly of the traditional nut 404.

[0038] The discharge assembly 4 is located inside the housing 3 and is used to guide static electricity from the forklift to the ground. The static electricity is further discharged through the grounding assembly 6. The grounding assembly 6 is electrically connected to the housing 3 through the conduit 402, thereby constructing a complete conductive path to ensure that static electricity is safely and effectively discharged to the ground. This ensures the inherent safety of the forklift in flammable and explosive environments and achieves the organic unity of modularity, quick disassembly and assembly, and reliable electrical connection of the static electricity discharge structure. This not only improves the maintenance convenience of the static electricity discharge device, but also significantly enhances the overall safety and service life of the forklift.

[0039] In this embodiment, a groove is provided on the upper part of the substrate 1, and the bottom plate 206 is slidably connected to the groove. A top plate 202 is slidably installed in the groove of the substrate 1 through a first spring 201. The upper part of the top plate 202 contacts and is electrically connected to the bottom plate 206. The snap-fit ​​component 204 includes an air pipe 2041, and a piston rod 2042 is elastically installed inside the air pipe 2041. An arc-shaped strip 2043 is fixedly connected to one end of the piston rod 2042, and the arc-shaped strip 2043 is movably inserted into the opening. A guide ring 207 is slidably installed in the limiting groove 208 outside the insertion rod 203. When in use, pressing the housing 3 causes the insertion rod 203 to be inserted into the through hole 603 of the base plate 1, and the arc-shaped strip 2043 to retract and then be inserted into the limiting groove 208 to perform a limiting action. Pressing the housing 3 again causes the insertion rod 203 to move down through the guide ring 207, and the guide ring 207 is forced to move down and guide, so that the insertion rod 203 can be pulled out.

[0040] The linkage between snap-fit ​​and conductivity has been further optimized in terms of structure, and a modular design based on sliding connection and elastic locking has been adopted.

[0041] The substrate 1 has a groove on its upper part, and the bottom plate 206 is installed in the groove by sliding to achieve stable positioning and guiding assembly of the housing 3 on the substrate 1. A top plate 202 is slidably arranged in the groove. The top plate 202 is supported by a first spring 201 and can be compressed and pushed up to contact the bottom plate 206 during the insertion of the insertion rod 203. Then, the contact surface between the top plate 202 and the bottom plate 206 is used to realize the electrical connection between the housing 3 and the substrate 1, effectively constructing an electrostatic discharge path.

[0042] The snap-fit ​​component 204 is equipped with an air tube 2041. A piston rod 2042 is elastically installed inside the air tube 2041. One end of the piston rod 2042 is fixedly connected to an arc-shaped strip 2043. The arc-shaped strip 2043 can be movably inserted into a limiting groove 208 provided outside the insertion rod 203 to achieve axial limiting of the insertion rod 203.

[0043] When the user presses the housing 3 for the first time, the insertion rod 203 is inserted downward into the through hole 603 of the base plate 1. The arc-shaped strip 2043 automatically retracts and enters the limiting groove 208 during the insertion process due to resistance, thus achieving limiting and locking. If disassembly is required, simply press the housing 3 again. The insertion rod 203 continues to move downward under the guidance and pressure of the guide ring 207. At the same time, the guide ring 207 drives the arc-shaped strip 2043 to disengage from the limiting groove 208, thereby releasing the locking state. The insertion rod 203 can then be pulled out smoothly, completing the disassembly operation of the housing 3. Stable and fast installation and disassembly can be achieved without the use of tools or the removal of screws. Furthermore, a good electrical connection is maintained throughout the process, avoiding the maintenance difficulties caused by thread wear, rust, and adhesion in traditional devices, thus improving the reliability and operational safety of the device.

[0044] In this embodiment, a screw 2046 is rotatably mounted inside the air pipe 2041 fixed inside the substrate 1. One end of the screw 2046 extends through the air pipe 2041 to the outside and is fixedly connected to a knob 2045. A piston rod 2042 is slidably mounted on one side of a slider 2047 inside the air pipe 2041 via a second spring 2048. A channel is opened inside the slider 2047. The upper part of the air pipe 2041 is connected to the jet gap 2044 of the arc-shaped strip 2043 through a transmission pipe 205. When the piston rod 2042 retracts, the compressed gas inside the air pipe 2041 is ejected through the jet gap 2044 of the arc-shaped strip 2043 to perform a jet dust removal action on the inserted rod 203.

[0045] Based on the snap-fit ​​structure, an air jet dust removal function is further integrated to improve the cleanliness and electrical reliability of the insertion rod 203 during the insertion process;

[0046] Specifically, in the air pipe 2041 structure fixed inside the substrate 1, a screw 2046 is rotatably installed inside. One end of the screw 2046 passes through the air pipe 2041 and extends to the outside. By being fixedly connected to the knob 2045, the user can drive the screw 2046 to rotate by rotating the knob 2045.

[0047] The rotation of the screw 2046 drives the slider 2047, which is located inside the air pipe 2041, to slide. One side of the slider 2047 is connected to the piston rod 2042 via a second spring 2048. The piston rod 2042 retracts in an orderly manner under the push of the slider 2047, thus adjusting the initial tension of the spring. A channel is provided inside the slider 2047 to ensure smooth gas flow during the compression process of the piston rod 2042. When the piston rod 2042 retracts under the propulsive action of the screw, it compresses the air inside the air pipe 2041, creating air pressure. The air pressure is transmitted through the slider 2047 channel, the upper transmission pipe 205 and the through structure to the jet gap 2044 connected to the arc-shaped strip 2043. Finally, the jet is directed to the inserted rod 203 through the jet holes set on the outside of the arc-shaped strip 2043, effectively removing dust, oil or particulate impurities from the surface of the rod 203. This ensures that there is no foreign object interference when the rod 203 is inserted into the limiting groove 208, maintaining the stability of the snap-fit ​​and the cleanliness and reliability of the electrostatic conductive path, thereby improving the electrical connection performance and safety of the device during long-term use.

[0048] In this embodiment, the wire feeding assembly 4 includes a winding wheel 401, which is rotatably mounted inside the housing 3. A wire tube 402 is wound around the outside of the winding wheel 401. One end of the wire tube 402 is fixed to the outside of the winding wheel 401, and the other end of the wire tube 402 extends through the gap between two guide wheels 403 rotatably mounted on the upper part of the housing 3 and is fixedly connected to the grounding assembly 6. The wire tube 402 is composed of a metal mesh tube and a rubber tube, with the rubber tube located inside the metal mesh tube. The metal mesh tube and the rubber tube are used for liquid transport and conductivity. The shaft of the winding wheel 401 extends through the housing 3 and is screwed to the outside with a nut 404. When the nut 404 rotates and fits against the housing 3, it limits the movement of the winding wheel 401.

[0049] The wire feeding assembly 4 adopts a compact and multifunctional winding wheel 401 mechanism to achieve orderly feeding and retracting of the electrostatic discharge tube 402 and reliable grounding.

[0050] Specifically, the wire feeding assembly 4 is located inside the housing 3 and is mainly composed of a winding wheel 401. The winding wheel 401 can rotate freely inside the housing 3 and is used to feed the conduit 402 connected to the external grounding assembly 6. One end of the conduit 402 is fixed to the outside of the winding wheel 401, and the other end passes through the gap between two guide wheels 403 located on the upper part of the housing 3 and rotatably mounted. The conduit 402 is guided to extend along a stable path to the outside and is fixedly connected to the grounding assembly 6, so as to realize the effective conduction and discharge of current.

[0051] The conduit 402 adopts a composite structure, which is composed of an inner rubber tube and an outer metal mesh tube coaxially. The inner rubber tube is used for flexible adaptation of the liquid channel, while the outer metal mesh tube has good conductivity. This allows the conduit 402 to maintain electrical connection stability while having flexible insertion characteristics, thereby ensuring that it can conduct electricity and assist in liquid adsorption or cooling during the electrostatic discharge process.

[0052] To prevent the winding wheel 401 from loosening or rotating during operation or transportation, its shaft is designed to extend through the housing 3 and be fixed to the outside by a nut 404. When the nut 404 rotates and comes into contact with the housing 3, it forms an axial clamping force, which effectively limits the winding wheel 401, prevents it from rotating unexpectedly, and ensures that the cable tube 402 is always in the predetermined winding and unwinding state, thereby improving the stability of use and the convenience of maintenance.

[0053] In this embodiment, a water tank 5 is fixedly installed on the upper part of the housing 3. The lower output end of the water tank 5 is connected to the conduit 402 through the housing 3 and the winding wheel 401. A transparent plate 8 is embedded on one side of the water tank 5 for observing the liquid level inside the water tank 5. A cover 7 is screwed onto the upper part of the water tank 5. The grounding component 6 includes a support frame 601 screwed onto one end of the conduit 402. A sponge ball 604 is fixedly installed inside a ball 602 rotatably installed inside the support frame 601. The inner cavity of the ball 602 is connected to the conduit 402. Several through holes 603 for leakage are opened on the outside of the ball 602.

[0054] By integrating a water tank 5 and a rolling ball 602 grounding assembly 6 on the upper part of the casing 3, the grounding reliability and service life are further enhanced.

[0055] Specifically, an integrated water tank 5 is fixedly installed on the top of the housing 3. An output end is located at the bottom of the water tank 5, and it is connected to the internal conduit system of the housing 3 and the winding reel 401, thus enabling gravity or differential pressure liquid supply. The conduit 402 has a composite structure of rubber tubing and metal mesh, which can carry liquid and has electrical conductivity. Liquid flows from the water tank 5 through this conduit 402 to the grounding end, further enhancing overall conductivity.

[0056] An embedded transparent plate 8 is provided on one side of the water tank 5, which allows users to observe the liquid level inside the water tank 5 in real time, ensuring sufficient liquid storage and avoiding a decrease in conductivity; a threaded opening is provided on the top of the water tank 5, and a tank cover 7 is screwed on, which facilitates liquid addition and sealing operations.

[0057] At the end of the conduit 402, a grounding component 6 is fixedly connected. The grounding component 6 includes an integrated support frame 601 and a ball 602 rotatably installed inside it. The ball 602 is in communication with the inner cavity of the conduit 402. Inside the ball 602, there is a liquid-absorbing sponge ball 604. When the conduit 402 delivers liquid into the cavity of the ball 602, the sponge ball 604 absorbs the liquid and continuously seeps out a small amount of water during the rotation of the ball 602. By wetting the contact area between the ball 602 and the ground, a larger area and a more stable conductive path are formed.

[0058] The ball 602 has several drainage holes 603 evenly distributed on its outer shell, which can release the seeping water evenly to the ground, effectively improving the conductive grounding effect. The ball 602 can rotate freely with the forklift, effectively reducing local damage caused by long-term wear, extending service life, and ensuring that the grounding device is always in full contact with the ground, thereby achieving efficient, long-lasting and stable electrostatic discharge.

[0059] The working principle of this utility model:

[0060] Through modular structural design and the synergistic effect of multiple conductive paths, the static electricity can be stably and safely discharged during forklift operation.

[0061] The base plate 1 is installed at the discharge position of the explosion-proof forklift and is electrically connected to the forklift to form the static electricity guiding starting point; a snap-fit ​​component 2 is set on it, and the tool-free disassembly and assembly of the housing 3 is achieved by using the plug rod 203-limit-elastic locking mechanism; the housing 3 is provided with a winding wheel 401 and a wire feeding component 4 inside, one end of the wire tube 402 is wound around the winding wheel 401, and the other end passes through the guide wheel 403 and extends to the external grounding component 6. The wire tube 402 adopts a composite structure of rubber tube and metal mesh, which can conduct electricity and transport liquid.

[0062] The upper part of the casing 3 integrates a water tank 5, which is connected to the conduit 402 through a conduit. Under the action of gravity, the liquid flows into the ball 602 through the conduit 402.

[0063] The grounding component 6 includes a rotating ball 602 and a sponge ball 604 inside it. The sponge ball 604 absorbs the liquid in the water tank 5 and slowly seeps out as the ball 602 rolls. The water is evenly released to the ground through the leakage holes 603 on the surface of the ball 602, so that the ball 602 forms a stable liquid conductive film while rolling and grounding, effectively expanding the contact area and improving the conductivity reliability.

[0064] The 602 ball can roll freely, avoiding localized wear; its overall structure organically integrates electrostatic discharge, liquid auxiliary grounding, and rapid maintenance, significantly improving electrostatic discharge efficiency and device lifespan.

[0065] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0066] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electrostatic discharge device for an explosion-proof forklift, comprising a base plate (1) for fixing at the discharge position of the explosion-proof forklift and electrically connected to the explosion-proof forklift, characterized in that, Also includes: A snap-fit ​​assembly (2) is disposed on the upper part of the substrate (1); The housing (3) is mounted on the upper part of the base plate (1) through the snap-fit ​​assembly (2) to realize quick disassembly, installation and maintenance of the housing (3), and the housing (3) is electrically connected to the base plate (1) through the snap-fit ​​assembly (2); A wire feeding assembly (4) is disposed inside the housing (3); Grounding component (6), which is fixedly installed at the end of the conduit (402) of the wire laying component (4), and the grounding component (6) is electrically connected to the housing (3) through the conduit (402); The snap-fit ​​assembly (2) includes a base plate (206) fixed to the lower part of the housing (3), and a snap-fit ​​member (204) fixed inside the base plate (1) is inserted into the lower part of the insert rod (203) fixed to the lower part of the base plate (206).

2. The explosion-proof forklift electrostatic discharge device as described in claim 1, characterized in that: The substrate (1) has a groove on its upper part, and the bottom plate (206) is slidably connected to the groove. A top plate (202) is slidably installed in the groove of the substrate (1) by a first spring (201). The upper part of the top plate (202) is in contact with and electrically connected to the bottom plate (206).

3. The explosion-proof forklift electrostatic discharge device as described in claim 1, characterized in that: The snap-fit ​​component (204) includes an air tube (2041), inside which a piston rod (2042) is elastically installed. One end of the piston rod (2042) is fixedly connected to an arc-shaped strip (2043), which is movably inserted into a limiting groove (208) opened outside the insert rod (203).

4. The explosion-proof forklift electrostatic discharge device as described in claim 3, characterized in that: A guide ring (207) is slidably installed at the limiting groove (208) position of the insertion rod (203); When in use, press the housing (3), insert the rod (203) into the through hole (603) of the substrate (1) and cause the arc-shaped strip (2043) to retract and insert into the limiting groove (208) to perform a limiting action; Press the housing (3) again, and the insertion rod (203) moves down through the guide ring (207), and the guide ring (207) moves down under force and guides, so that the insertion rod (203) can be pulled out.

5. The explosion-proof forklift electrostatic discharge device as described in claim 3, characterized in that: A screw (2046) is rotatably mounted inside the air pipe (2041) fixed inside the base plate (1). One end of the screw (2046) passes through the air pipe (2041) and extends to the outside, where a knob (2045) is fixedly connected.

6. The explosion-proof forklift electrostatic discharge device as described in claim 5, characterized in that: The piston rod (2042) is slidably mounted on one side of the slider (2047) inside the air tube (2041) via a second spring (2048), and a channel is provided inside the slider (2047).

7. The explosion-proof forklift electrostatic discharge device as described in claim 6, characterized in that: The upper part of the trachea (2041) is connected to the jet gap (2044) of the arc-shaped strip (2043) through the transmission pipe (205); When the piston rod (2042) retracts, the compressed gas inside the air pipe (2041) is ejected through the jet gap (2044) at the point of the arc-shaped strip (2043) to perform a jet dust removal action on the inserted rod (203).

8. The explosion-proof forklift electrostatic discharge device as described in claim 1, characterized in that: The wire feeding assembly (4) includes a winding wheel (401), which is rotatably mounted inside the housing (3). A wire tube (402) is wound around the outside of the winding wheel (401). One end of the wire tube (402) is fixed outside the winding wheel (401), and the other end of the wire tube (402) extends through the gap between two guide wheels (403) rotatably mounted on the upper part of the housing (3) and is fixedly connected to the grounding assembly (6) to the outside. The conduit (402) is composed of a metal mesh tube and a rubber tube, the rubber tube being located inside the metal mesh tube, the metal mesh tube cooperating with the rubber tube for liquid transport and electrical conduction; The winding wheel (401) has its shaft extending through the housing (3) to the outside and is screwed with a nut (404). When the nut (404) rotates and comes into contact with the housing (3), it limits the winding wheel (401).

9. The explosion-proof forklift electrostatic discharge device as described in claim 4, characterized in that: A water tank (5) is fixedly installed on the upper part of the housing (3), and the lower output end of the water tank (5) is connected to the conduit (402) through the housing (3) and the winding wheel (401); A transparent plate (8) is embedded on one side of the water tank (5) for observing the liquid level inside the water tank (5), and a cover (7) is screwed onto the upper part of the water tank (5).

10. The explosion-proof forklift electrostatic discharge device as described in claim 9, characterized in that: The grounding assembly (6) includes a support frame (601) screwed to one end of the conduit (402), a ball (602) rotatably mounted inside the support frame (601) and a sponge ball (604) fixedly installed inside the ball (602), the inner cavity of the ball (602) communicating with the conduit (402), and the outer side of the ball (602) having a plurality of through holes (603) for leakage.

Images