Human body static electricity elimination and passage interlocking device at tank farm entrance

Abstract

The application relates to the technical field of static electricity elimination, in particular to a human body static electricity elimination and passing interlocking device at an oil tank area entrance, which comprises a base, a hollow rod rotatably arranged on the base, a plurality of blocking rods which are circumferentially and equidistantly arranged on the hollow rod, and a control pipe fixed to the end of the hollow rod; a fixed rod fixed to the base and provided with a one-way transmission assembly connected with the control pipe; a rotation limiting mechanism arranged in the control pipe and connected with the fixed rod, a guide column connected with the rotation limiting mechanism, and a fixed ring fixed to the guide column; and a trigger unlocking mechanism arranged in the control pipe and connected with a static electricity eliminator, wherein when the static electricity eliminator is pressed down and drives the trigger unlocking mechanism to move, the rotation limiting mechanism is unlocked from the control pipe, so that the hollow rod and the blocking rods can be moved and a single person can pass through after static electricity elimination is completed.

Description

Technical Field

[0001] This invention relates to the field of static electricity elimination technology, specifically a device for eliminating static electricity in the human body and interlocking passage at the entrance of an oil tank area. Background Technology

[0002] Tank farms are major hazard sources for storing flammable and explosive oil products. When operating or inspecting key areas such as the entrance platform of the tank farm, static electricity may be generated and accumulated by the friction of workers' bodies with clothing and the friction of the soles of their shoes with the ground.

[0003] When the static potential carried by the human body reaches a certain value, the static sparks generated when touching oil tank accessories, valves, or during release can easily ignite the surrounding oil vapor and air mixture, thereby causing serious fires or even explosions. Therefore, requiring personnel to eliminate static electricity from their bodies before entering such high-risk areas is a crucial safety measure.

[0004] In existing technologies, in order to balance static electricity elimination and personnel access management, two methods are often combined. One is to set up a human static electricity eliminator (such as a touch-type static electricity release ball) at the entrance, requiring people to manually touch it to release static electricity before entering. The other is to set up physical passage facilities, such as one-way rotating gates (commonly known as "cross turnstiles"), to force single-person sequential passage.

[0005] However, static electricity elimination relies entirely on the self-discipline of personnel. When there is no supervision or when personnel are lax in their safety awareness, it is very easy for them to enter the dangerous area through the gate without eliminating static electricity, creating a huge safety hazard. Furthermore, personnel can bypass the eliminater and push the gate directly to enter, or after one person eliminates static electricity, multiple people can follow and pass through, thus defeating the original intention of "one person, one elimination" safety management. Summary of the Invention

[0006] The purpose of this invention is to provide a device for eliminating static electricity in the human body and interlocking passage at the entrance of an oil tank area, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a human static electricity elimination and passage interlock device at the entrance of an oil tank area, comprising: a base, and a hollow rod rotatably mounted on the base, wherein multiple stop bars are fixed on the hollow rod at equal intervals around the circumference, and a control tube is fixed at the end of the hollow rod; further comprising: a fixing rod fixed on the base, wherein a one-way transmission assembly connected to the control tube is provided on the fixing rod; a rotation limiting mechanism disposed within the control tube and connected to the fixing rod, wherein a guide post is connected to the rotation limiting mechanism, and a fixing ring is fixed on the guide post; and a trigger unlocking mechanism disposed within the control tube, wherein an electrostatic device is connected to the trigger unlocking mechanism, and the trigger unlocking mechanism can release the angle lock on the control tube through the rotation limiting mechanism when the electrostatic device is pressed down.

[0008] As a further aspect of the present invention: the one-way transmission assembly includes a transmission tooth fixed to the bottom of the control tube, a sliding sleeve that slides axially on the fixed rod, and an active tooth that meshes with the transmission tooth is fixed at the end of the sliding sleeve.

[0009] As a further embodiment of the present invention: the one-way transmission assembly further includes a first limiting ring fixed on the fixed rod, and a first spring is sleeved on the fixed rod, with the two ends of the first spring abutting against the first limiting ring and the driving tooth respectively.

[0010] As a further embodiment of the present invention: the rotation limiting mechanism includes a second limiting ring fixed to the end of the fixed rod, the fixed rod has a first movable sleeve that slides axially and abuts against the second limiting ring, a first movable plate is fixed on the first movable sleeve, and a second spring is sleeved on the fixed rod, the two ends of the second spring abutting against the first movable plate and the inner wall of the control tube, respectively.

[0011] As a further embodiment of the present invention: the rotation limiting mechanism further includes a plurality of first vertical grooves formed on the inner wall of the control tube and distributed equidistantly in a circular pattern, the inner wall of the control tube also having a first annular groove communicating with the first vertical grooves, and a first limiting post fixed on the first movable plate, which is symmetrically distributed and slidably fitted with the first vertical grooves and the first annular grooves.

[0012] As a further embodiment of the present invention: the trigger unlocking mechanism includes a push rod slidably installed in the control tube, the push rod being fixedly connected to the electrostatic device, and a third spring being sleeved on the push rod, with the two ends of the third spring abutting against the electrostatic device and the control tube respectively.

[0013] As a further embodiment of the present invention: the trigger unlocking mechanism further includes a second movable plate fixed to the end of the push rod, the second movable plate having a limiting groove that cooperates with the guide post, the second movable plate having symmetrically distributed second limiting posts fixed thereon, the inner wall of the control tube having a second vertical groove that is circumferentially distributed, the inner wall of the control tube also having a second annular groove that communicates with the second vertical groove, the second limiting post slidingly engaging with the second vertical groove and the second annular groove.

[0014] As a further embodiment of the present invention: a reset mechanism connected to the push rod is provided inside the control tube. The reset mechanism includes a rotating sleeve rotatably installed inside the control tube and slidably connected to the push rod. A second movable sleeve is axially slidably connected to the rotating sleeve. A connecting plate slidably connected to the guide post is fixed on the second movable sleeve.

[0015] As a further embodiment of the present invention: the reset mechanism further includes a spiral groove formed on the outer circumference of the rotating sleeve, a limiting block fixed on the inner wall of the second movable sleeve that slides and engages with the spiral groove, a third limiting ring fixed at the end of the rotating sleeve, and a fourth spring sleeved on the rotating sleeve, the two ends of the fourth spring respectively abutting against the third limiting ring and the connecting plate.

[0016] As a further embodiment of the present invention, it also includes a guide rail and railing channels placed on both sides of the stop bar, a protective door is slidably installed on the guide rail, and the protective door is provided with a rotating opening and closing assembly for controlling the opening and closing of the railing channel.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention securely locks the rotating gate by embedding the first limiting post into the first vertical groove. Only when the static electricity generator is pressed down to the specified stroke can the first limiting post be driven to move out of the first vertical groove and into the first annular groove by triggering the linkage between the unlocking mechanism and the rotation limiting mechanism, thereby releasing the lock on the gate. This means that the operator must complete the action of pressing the static electricity generator (i.e., performing static electricity elimination) and achieve sufficient pressing force and stroke before the gate will be unlocked and allowed to be pushed, eliminating the possibility of entering the dangerous area without eliminating static electricity.

[0018] During passage, the one-way transmission component, through its one-way meshing toothed design, only allows the gate to rotate in the direction of passage, preventing reverse or intrusion. Secondly, after each unlocking, the gate can only rotate 90 degrees (one workstation), which is just enough to allow one person to pass through. Then, the rotation limiting mechanism automatically resets and locks the gate to prevent subsequent personnel from entering.

[0019] After passage is completed, the first limit post automatically springs into the next first vertical slot under the action of the second spring, relocking the gate; the electrostatic device automatically springs back to its original position under the action of the third spring, and the reset mechanism controls the triggering of the unlocking mechanism to reset, ensuring that the device can be used continuously and reliably in cycles, and always maintains the initial safe locking state. Attached Figure Description

[0020] Figure 1 A schematic diagram of one embodiment of a device for eliminating static electricity and interlocking passage at the entrance of an oil tank area; Figure 2 A schematic diagram of the structure of the rotating opening and closing assembly, protective door, passage, and guide rail in one embodiment of the human static electricity elimination and passage interlocking device at the entrance of the oil tank area; Figure 3 A schematic diagram of the structure of the stop bar, hollow bar, and control tube in one embodiment of the human static electricity elimination and passage interlocking device at the entrance of the oil tank area; Figure 4 for Figure 3 Another structural diagram from another angle; Figure 5 A schematic cross-sectional view of the control tube and hollow rod in one embodiment of the human static electricity elimination and passage interlocking device at the entrance of the oil tank area; Figure 6 A schematic cross-sectional view of the control pipe in one embodiment of the human static electricity elimination and passage interlock device at the entrance of the oil tank area; Figure 7 for Figure 6 Enlarged structural diagram at point A; Figure 8 A schematic diagram showing the connection relationship between some rotation limiting mechanisms and trigger unlocking mechanisms in one embodiment of a human static electricity elimination and passage interlocking device at the entrance of an oil tank area; Figure 9 An exploded structural diagram of part of the rotation limiting mechanism and trigger unlocking mechanism in one embodiment of the human static electricity elimination and passage interlocking device at the entrance of the oil tank area; Figure 10 A schematic diagram of the structure of part of the rotation restriction mechanism and one-way transmission component in one embodiment of the human static electricity elimination and passage interlock device at the entrance of the oil tank area; Figure 11 This is an exploded structural diagram of a portion of the unidirectional transmission components in one embodiment of a static electricity elimination and passage interlocking device for the entrance of an oil tank area.

[0021] In the diagram: 1. Base; 2. Hollow rod; 3. Stop bar; 4. Control tube; 401. First vertical groove; 402. First annular groove; 403. Second annular groove; 404. Second vertical groove; 5. Fixed rod; 501. First limiting ring; 502. Second limiting ring; 6. Transmission gear; 7. Sliding sleeve; 8. Driving gear; 9. First spring; 10. First movable sleeve; 11. First movable plate; 12. First limiting post; 13. Guide post; 1301. Fixed ring; 14. Second spring; 15. Second movable plate; 1501. Limiting groove; 16. Second limiting post; 17. Push rod; 1701. Static collector; 18. Third spring; 19. Rotating sleeve; 1901. Spiral groove; 1902. Third limiting ring; 20. Second movable sleeve; 2001. Limiting block; 21. Connecting plate; 22. Fourth spring; 23. Railing passage; 24. Guide rail; 25. Protective door; 2501. Rack plate; 26. Opening and closing door; 27. Conductive handle; 28. First gear; 29. ​​Conductive support post; 30. Second gear; 31. Third gear; 32. Traction rope; 33. Counterweight. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0024] Please see Figures 1-11 In this embodiment of the invention, a human static electricity elimination and passage interlock device at the entrance of an oil tank area includes: a base 1, and a hollow rod 2 rotatably mounted on the base 1, with multiple circumferentially distributed baffles 3 fixed on the hollow rod 2, and a control tube 4 fixed at the end of the hollow rod 2; it also includes: a fixing rod 5 fixed on the base 1, with a one-way transmission assembly connected to the control tube 4 on the fixing rod 5; a rotation limiting mechanism disposed within the control tube 4 and connected to the fixing rod 5, with a guide post 13 connected to the rotation limiting mechanism, and a fixing ring 1301 fixed on the guide post 13; and a trigger unlocking mechanism disposed within the control tube 4, with an electrostatic device 1701 connected to the trigger unlocking mechanism, which can release the angle lock on the control tube 4 through the rotation limiting mechanism when the electrostatic device 1701 is pressed down.

[0025] Specifically, this device is installed in conjunction with the wall and forms a single-person passage under the action of the barrier 3. To prevent safety accidents caused by static electricity in the oil tank, static electricity elimination treatment is required before entry. To do this, workers can enter the single-person passage formed by two adjacent barriers 3 and manually press the static electricity device 1701. The static electricity device 1701 will eliminate the static electricity carried by the human body. Simultaneously, the static electricity device 1701 will move towards the control tube 4, driving the trigger unlocking mechanism. When the static electricity device 1701 is pressed to the designated position, the unlocking mechanism is triggered. The angle lock on the control tube 4 and the hollow rod 2 is released by the rotation limiting mechanism. At this time, the staff can move forward and drive the hollow rod 2 to rotate through the stop bar 3, so that the one-way transmission component moves. After a person passes through, the hollow rod 2 rotates 90°. At this time, the force applied to the electrostatic device 1701 is removed, triggering the unlocking mechanism and the rotation limiting mechanism to reset. Under the action of the rotation limiting mechanism, the angle of the hollow rod 2 and the control tube 4 is locked again. In this way, it can ensure that the static electricity carried by the staff is completely eliminated and that only one person can pass through at a time.

[0026] Please see Figure 5 , Figure 10 , Figure 11 The one-way transmission assembly includes a transmission tooth 6 fixed to the bottom of the control tube 4, a sliding sleeve 7 slidably attached to the fixed rod 5, and an active tooth 8 that meshes with the transmission tooth 6 fixed to the end of the sliding sleeve 7. The one-way transmission assembly also includes a first limiting ring 501 fixed to the fixed rod 5, and a first spring 9 sleeved on the fixed rod 5. The two ends of the first spring 9 abut against the first limiting ring 501 and the active tooth 8, respectively.

[0027] In detail, the transmission gear 6 and the driving gear 8 have teeth forming a vertical triangular shape. Under the action of the teeth, the transmission gear 6 can only rotate along the circumferential tilt direction of the teeth on the driving gear 8, thereby realizing the unidirectional rotation of the hollow rod 2 and the control tube 4. A key is fixed on the fixed rod 5, and a keyway is formed on the inner wall of the sliding sleeve 7 to cooperate with the key. With the cooperation of the key and the keyway, the sliding sleeve 7 can only slide along the axial direction of the fixed rod 5 and cannot rotate. In the initial state, the driving gear 8 and the transmission gear 6 are in a meshing state. Therefore, the distance between the driving gear 8 and the first limiting ring 501 is... The first spring 9, in its natural state, elongates more than the maximum distance between the active tooth 8 and the first limiting ring 501. Therefore, the first spring 9 is in a pre-compressed state and always provides a thrust to the active tooth 8 towards the transmission tooth 6. When a worker needs to enter, the worker enters the passage formed by the two adjacent stop bars 3 and pushes the stop bar 3 in the forward direction with their body. The force on the stop bar 3 causes the hollow rod 2 and control tube 4 fixed to it to begin rotating around its axis. The rotation of the control tube 4 causes the transmission tooth 6 fixed at its bottom to... Synchronous rotation; due to the unidirectional meshing design of the tooth profiles of the transmission tooth 6 and the driving tooth 8, when the transmission tooth 6 rotates in the permissible direction (i.e., the direction of personnel passage), the inclined working surface of its tooth contacts the corresponding tooth surface of the driving tooth 8 and generates an interaction force. This force can be decomposed into two components: a tangential component attempts to drive the driving tooth 8 to rotate, but because the sliding sleeve 7 is restricted from rotating by the keyway on the fixed rod 5, this tangential force is completely resisted; the other radial component is applied to the driving tooth 8 to cause it to rotate axially away from the transmission tooth 6 along the fixed rod 5. The thrust overcomes the elastic force of the first spring 9 in the pre-compressed state, pushing the active gear 8 and the sliding sleeve 7 fixed thereto to slide smoothly along the axial direction of the fixed rod 5 in the direction of compressing the first spring 9. This sliding causes the active gear 8 to temporarily disengage from the transmission gear 6. The active gear 8 is forced to make a yielding action, thereby allowing the transmission gear 6 and the entire control tube 4 and hollow rod 2 to rotate smoothly under the push of personnel. When the staff passes through, the hollow rod 2 rotates 90 degrees, and the next stop 3 reaches the entrance position of the passage, blocking the subsequent personnel from entering.

[0028] Please see Figures 5-10The rotation limiting mechanism includes a second limiting ring 502 fixed to the end of the fixed rod 5. The fixed rod 5 has a first movable sleeve 10 that slides axially and abuts against the second limiting ring 502. A first movable plate 11 is fixed on the first movable sleeve 10. A second spring 14 is sleeved on the fixed rod 5. The two ends of the second spring 14 abut against the first movable plate 11 and the inner wall of the control tube 4, respectively. The rotation limiting mechanism also includes a plurality of first vertical grooves 401 formed on the inner wall of the control tube 4 and distributed circumferentially. The inner wall of the control tube 4 also has a first annular groove 402 that communicates with the first vertical grooves 401. A first limiting post 12 that is symmetrically distributed and slides into the first vertical grooves 401 and the first annular groove 402 is fixed on the first movable plate 11.

[0029] Please see Figures 5-9 The trigger unlocking mechanism includes a push rod 17 slidably installed inside the control tube 4. The push rod 17 is fixedly connected to the electrostatic device 1701. A third spring 18 is sleeved on the push rod 17. The two ends of the third spring 18 abut against the electrostatic device 1701 and the control tube 4, respectively. The trigger unlocking mechanism also includes a second movable plate 15 fixed to the end of the push rod 17. A limiting groove 1501 that cooperates with the guide post 13 is formed on the second movable plate 15. A second limiting post 16 that is symmetrically distributed is fixed on the second movable plate 15. A second vertical groove 404 that is circumferentially distributed is formed on the inner wall of the control tube 4. A second annular groove 403 that communicates with the second vertical groove 404 is also formed on the inner wall of the control tube 4. The second limiting post 16 is slidably engaged with the second vertical groove 404 and the second annular groove 403.

[0030] Please see Figures 5-9 The control tube 4 is provided with a reset mechanism connected to the push rod 17. The reset mechanism includes a rotating sleeve 19 rotatably installed in the control tube 4 and slidably connected to the push rod 17. A second movable sleeve 20 is axially slidably connected to the rotating sleeve 19. A connecting plate 21 slidably connected to the guide post 13 is fixed on the second movable sleeve 20. The reset mechanism also includes a spiral groove 1901 formed on the outer circumference of the rotating sleeve 19. A limiting block 2001 that slidably engages with the spiral groove 1901 is fixed on the inner wall of the second movable sleeve 20. A third limiting ring 1902 is fixed at the end of the rotating sleeve 19. A fourth spring 22 is sleeved on the rotating sleeve 19. The two ends of the fourth spring 22 abut against the third limiting ring 1902 and the connecting plate 21, respectively.

[0031] Please see Figure 7Furthermore, the inner wall of the first movable sleeve 10 also has a keyway that mates with the key. With the keyway and key engaging, the first movable sleeve 10 can only slide axially along the fixed rod 5 and cannot rotate. A key is fixed on the push rod 17, and a keyway is formed on the inner wall of the rotating sleeve 19. With the key and keyway engaging, the rotating sleeve 19 rotates synchronously with the push rod 17. The first annular groove 402 connects to the lower end of the first vertical groove 401, and the second annular groove 403 connects to the upper end of the second vertical groove 404. Please refer to [link to relevant documentation]. Figure 5 , Figure 8In the initial state, the second limiting post 16 is located at the connection position between the second annular groove 403 and one of the second vertical grooves 404, minimizing the distance between the second movable plate 15 and the rotating sleeve 19. In this state, the electrostatic device 1701 is located at the end of its stroke away from the control tube 4, i.e., the distance between the electrostatic device 1701 and the control tube 4 is the largest. The extension of the third spring 18 in its natural state is greater than the maximum distance between the electrostatic device 1701 and the control tube 4. Therefore, the third spring 18 is in a pre-compressed state and always provides the electrostatic device 1701 with a thrust in the direction away from the control tube 4. The first limiting post 12 is located at the end of one of the first vertical grooves 401 on the side away from the first annular groove 402. The first limiting post 12 and the first vertical groove Under the action of 401, the angle of the control tube 4 is locked, thereby locking the positions of the hollow rod 2 and the stop rod 3. In this state, the first movable sleeve 10 and the second limiting ring 502 are in contact, that is, the distance between the first movable plate 11 and the bottom inner wall of the control tube 4 is the largest, and the extension of the second spring 14 in its natural state is greater than the maximum distance between the first movable plate 11 and the bottom inner wall of the control tube 4. Therefore, the second spring 14 is in a pre-compressed state and always provides the first movable plate 11 with a thrust toward the rotating sleeve 19; the limiting block 2001 is located at the end of the spiral groove 1901 away from the third limiting ring 1902. Therefore, the distance between the second movable sleeve 20 and the connecting plate 21 and the third limiting ring 1902 is the largest, and The fourth spring 22, in its natural state, elongates more than the maximum distance between the connecting plate 21 and the third limiting ring 1902. Therefore, the fourth spring 22 is in a pre-compressed state and constantly provides the connecting plate 21 with a thrust away from the third limiting ring 1902. In this state, the distance between the first movable plate 11 and the second movable plate 15 is at its maximum, and the guide post 13 is placed within the limiting groove 1501, with the fixing ring 1301 and the second movable plate 15 in contact. When a worker needs to enter and eliminate static electricity, the worker has already entered the passage formed by the two adjacent stop bars 3. Because the first limiting post 12 is embedded in the first vertical groove 401, it restricts the rotation of the control tube 4, and the stop bars 3 and the hollow rod 2 are locked, preventing the worker from directly pushing the stop bars. 3. Moving forward, the person manually presses the electrostatic device 1701 located in front. Its built-in discharge circuit contacts the human skin to eliminate the static electricity carried by the human body. At the same time, the electrostatic device 1701 is pressed and drives the push rod 17 to slide into the control tube 4, compressing the third spring 18 which is in a pre-compressed state. The movement of the push rod 17 drives the second movable plate 15 fixed at its end to move into the control tube 4 in sync. The second limiting post 16 fixed on the second movable plate 15 moves accordingly and disengages from the second annular groove 403, enters one of the second vertical grooves 404 and slides downward. At the same time, the second movable plate 15 drives the guide post 13 to move synchronously through the fixed ring 1301, thereby controlling the first movable plate 11 to overcome the elastic force of the second spring 14 and move axially along the fixed rod 5.The movement of the first movable plate 11 causes the first limiting post 12 fixed thereon to slide downward along the first vertical groove 401 where it was originally located. When the first limiting post 12 slides to the lower end of the first vertical groove 401 and enters the first annular groove 402 that is connected to it, its rotational constraint on the control tube 4 is released. At this moment, the control tube 4 and the hollow rod 2 are in an unlocked state where they can rotate freely. At this time, the person moves forward and pushes the stop bar 3, causing the hollow rod 2 and the control tube 4 to start rotating. As the control tube 4 rotates, the first limiting post 12 slides in the first annular groove 402 and is no longer constrained. The rotation angle is controlled. Simultaneously, since the second limiting post 16 is located within the second vertical groove 404, the trajectory constraint of the second vertical groove 404 prevents the second movable plate 15 from freely sliding circumferentially relative to the control tube 4. Therefore, the second movable plate 15 is forced to rotate along with the control tube 4. This rotation causes relative displacement between the second movable plate 15, the fixed ring 1301, and the guide post 13, and the two quickly separate. Since the first movable plate 11 is only under the thrust of the second spring 14, and the first limiting post 12 is already within the first annular groove 402, its position is temporarily unaffected by rotation. Therefore, the first movable plate 11... The guide post 13 remains stationary. The rotational movement of the second movable plate 15, through the engagement of the key on the push rod 17 and the keyway inside the rotating sleeve 19, drives the rotating sleeve 19 to rotate synchronously. The rotation of the rotating sleeve 19 causes the spiral groove 1901 formed on its outer wall to move relative to the limiting block 2001 fixed on the inner wall of the second movable sleeve 20. The contour of the spiral groove 1901 forces the limiting block 2001 to slide along its trajectory. This sliding converts the rotational movement of the rotating sleeve 19 into the linear movement of the second movable sleeve 20 along its axial direction. The second movable sleeve 20 drives the connecting plate. 21. Along the axial direction of the guide post 13, slide towards the direction of compressing the fourth spring 22; when the hollow rod 2 rotates 90 degrees and the personnel have completely passed through the passage, the first limiting post 12 just rotates with the control tube 4 to the junction of the first annular groove 402 and the next first vertical groove 401. At this time, under the continuous pushing force of the second spring 14, the first limiting post 12 on the first movable plate 11 is quickly pushed into the first vertical groove 401. The first limiting post 12 is re-embedded in the first vertical groove 401, and the rotation lock of the control tube 4 is achieved again. The stop bar 3 returns to the fixed position to block subsequent personnel.After personnel pass through, their hands leave the electrostatic device 1701. The compressed third spring 18 releases its elasticity, pushing the electrostatic device 1701 and push rod 17 to reset. Push rod 17 drives the second movable plate 15 to move in the opposite direction, and the second limiting post 16 slides upward along the second vertical groove 404. Since the limiting groove 1501 of the second movable plate 15 is now misaligned with the guide post 13, the reset process is not interfered with. When the second limiting post 16 slides back into the second annular groove 403, the second movable plate 15 returns to a state where it can slide freely in the circumference. At the same time, the compressed fourth spring 22 releases its elasticity, pushing the connecting plate 21 and the second movable sleeve 20 to move in the opposite direction. The movement of the second movable sleeve 20, through the cooperation of the limiting block 2001 and the spiral groove 1901, drives the rotating sleeve 19 to rotate in the opposite direction. The reverse rotation of the rotating sleeve 19, through the cooperation of the keyway and the key on the push rod 17, drives the second movable plate 15 to rotate synchronously back to the initial angle position.

[0032] In this way, during the entire process of staff entering, they must first press the static electricity device 1701 to eliminate static electricity before unlocking and pushing the turnout to pass through; after passing through, the turnout automatically resets and locks; the static electricity device 1701 also automatically resets, ensuring that only one person can pass each time, avoiding safety hazards caused by personnel entering without eliminating static electricity.

[0033] Please see Figure 1 , Figure 2 It also includes a guide rail 24 and a railing channel 23 placed on both sides of the stop bar 3. A protective door 25 is slidably installed on the guide rail 24, and a rotating opening and closing assembly for controlling the opening and closing of the railing channel 23 is provided on the protective door 25.

[0034] The rotating opening and closing assembly includes a rack plate 2501 fixed on the protective door 25, an opening and closing door 26 slidably mounted on the protective door 25 and fixedly connected to the guide rail 24, a conductive support column 29 fixed on the opening and closing door 26, a conductive handle 27, a first gear 28, a second gear 30, and a third gear 31 rotatably mounted on the conductive support column 29, the first gear 28 and the conductive handle 27 being coaxially arranged, the second gear 30 and the third gear 31 being coaxially arranged, the first gear 28 and the second gear 30 meshing with each other, the third gear 31 meshing with the rack plate 2501, a traction rope 32 fixed on the protective door 25, and a counterweight 33 fixed at the end of the traction rope 32 away from the protective door 25.

[0035] Furthermore, the protective door 25 and the opening / closing door 26 are located at the front end of the railing passage 23. Only when the protective door 25 is open can personnel enter the railing passage 23 to perform another static electricity elimination action. Initially, the protective door 25 is closed, blocking the railing passage 23. If personnel need to enter the railing passage 23, they can hold and rotate the conductive handle 27. During this process, static electricity carried by the human body will be eliminated through the conductive handle 27 and the conductive support column 29. The conductive handle 27 also controls the rotation of the first gear 28. Because the first gear 28 meshes with the second gear 30, the second gear 30 will rotate in the opposite direction, driving the coaxial third gear 3. When the first gear 28 rotates, the third gear 31 meshes with the rack plate 2501, causing the protective door 25 to slide along the length of the guide rail 24. Since the number of teeth of the first gear 28, the second gear 30, and the third gear 31 gradually increases, the second gear 30 can only rotate once when the first gear 28 rotates several times, and the third gear 31 rotates less than once. This achieves relative effort reduction in controlling the opening of the protective door 25. The protective door 25 will also pull the counterweight 33 through the traction rope 32. After the static electricity elimination work is completed, the protective door 25 is fully opened, and the staff can enter the railing passage 23 and perform the next static electricity elimination action. At the same time, under the action of the counterweight 33, the protective door 25 is controlled to close again through the traction rope 32.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for eliminating static electricity and interlocking passage at the entrance of an oil tank area, comprising: The system comprises: a base, and a hollow rod rotatably mounted on the base, with multiple circumferentially equidistant stop bars fixed on the hollow rod, and a control tube fixed to the end of the hollow rod; characterized in that it further comprises: a fixing rod fixed on the base, the fixing rod having a one-way transmission assembly connected to the control tube; a rotation limiting mechanism disposed within the control tube and connected to the fixing rod, the rotation limiting mechanism having a guide post connected to it, and a fixing ring fixed to the guide post; and a trigger unlocking mechanism disposed within the control tube, the trigger unlocking mechanism having an electrostatic device connected to it, the trigger unlocking mechanism being able to release the angle lock of the control tube through the rotation limiting mechanism when the electrostatic device is pressed down.

2. The device for eliminating static electricity and interlocking passage at the entrance of an oil tank area according to claim 1, characterized in that, The unidirectional transmission assembly includes transmission teeth fixed to the bottom of the control tube, a sliding sleeve that slides axially on the fixed rod, and an active tooth that meshes with the transmission teeth fixed at the end of the sliding sleeve.

3. The device for eliminating static electricity and interlocking passage at the entrance of an oil tank area according to claim 2, characterized in that, The unidirectional transmission assembly further includes a first limiting ring fixed on the fixed rod, and a first spring is sleeved on the fixed rod, with the two ends of the first spring abutting against the first limiting ring and the driving tooth, respectively.

4. The device for eliminating static electricity and interlocking passage at the entrance of an oil tank area according to claim 1, characterized in that, The rotation limiting mechanism includes a second limiting ring fixed to the end of the fixed rod. The fixed rod has a first movable sleeve that slides axially and abuts against the second limiting ring. A first movable plate is fixed on the first movable sleeve. A second spring is sleeved on the fixed rod. The two ends of the second spring abut against the first movable plate and the inner wall of the control tube, respectively.

5. A device for eliminating static electricity and interlocking passage at the entrance of an oil tank area according to claim 4, characterized in that, The rotation limiting mechanism further includes a plurality of first vertical grooves formed on the inner wall of the control tube and distributed circumferentially. The inner wall of the control tube also has a first annular groove that communicates with the first vertical grooves. The first movable plate is fixed with first limiting posts that are symmetrically distributed and slidably fitted with the first vertical grooves and the first annular grooves.

6. The device for eliminating static electricity and interlocking passage at the entrance of an oil tank area according to claim 1, characterized in that, The trigger unlocking mechanism includes a push rod that is slidably installed inside the control tube. The push rod is fixedly connected to the electrostatic device. A third spring is sleeved on the push rod, and the two ends of the third spring abut against the electrostatic device and the control tube, respectively.

7. A device for eliminating static electricity and interlocking passage at the entrance of an oil tank area according to claim 6, characterized in that, The trigger unlocking mechanism further includes a second movable plate fixed to the end of the push rod. A limiting groove is formed on the second movable plate to cooperate with the guide post. A second limiting post is fixed on the second movable plate in a symmetrical distribution. A second vertical groove is formed on the inner wall of the control tube in a circumferentially equidistant distribution. A second annular groove is also formed on the inner wall of the control tube to communicate with the second vertical groove. The second limiting post slides into the second vertical groove and the second annular groove.

8. A device for eliminating static electricity and interlocking passage at the entrance of an oil tank area according to claim 6, characterized in that, The control tube is provided with a reset mechanism connected to the push rod. The reset mechanism includes a rotating sleeve rotatably installed in the control tube and slidably connected to the push rod. A second movable sleeve is axially slidably connected to the rotating sleeve. A connecting plate slidably connected to the guide post is fixed on the second movable sleeve.

9. A device for eliminating static electricity and interlocking passage at the entrance of an oil tank area according to claim 8, characterized in that, The reset mechanism further includes a spiral groove formed on the outer circumference of the rotating sleeve, a limiting block fixed on the inner wall of the second movable sleeve that slides and engages with the spiral groove, a third limiting ring fixed at the end of the rotating sleeve, and a fourth spring sleeved on the rotating sleeve, with the two ends of the fourth spring abutting against the third limiting ring and the connecting plate, respectively.

10. A device for eliminating static electricity and interlocking passage at the entrance of an oil tank area according to claim 1, characterized in that, It also includes a guide rail and railing passages placed on both sides of the stop bar. A protective door is slidably installed on the guide rail, and the protective door is provided with a rotating opening and closing assembly for controlling the opening and closing of the railing passage.

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