An active braking device for a refueling well joint to prevent movement

Abstract

The present invention discloses an active braking device for a refueling well joint that prevents movement, and relates to the technical field of safety protection for petroleum equipment. The device comprises a joint body, a mounting sleeve, and a support rod. The support rod is slidably connected to the interior of the mounting sleeve, and a round block that matches the mounting cavity inside the mounting sleeve extends from the top of the support rod. In the present invention, during operation, a worker firmly grasps the pull block and the handle at the top of the pull rope, and the pull block pulls the support rod with the help of the pull rope, while the handle pulls the joint body to the desired position. After releasing the pull block, the return spring pushes the support rod downward, and the outer wall of the truncated cone slides in contact with the inclined surface of the trapezoidal block until the truncated cone slides to the bottom of the trapezoidal block. The two are tightly fitted and contacted to form a stable clamping structure, which prevents the support rod from moving and ensures the stability of the brake device. Loosening the pull block and the handle at the top of the pull rope can achieve autonomous braking, thus realizing the flexible and efficient braking function of the joint body.

Description

Technical Field

[0001] The invention relates to the technical field of safety protection of petroleum equipment, in particular to an active braking device for a refueling well joint which is capable of preventing movement. Background Art

[0002] The fueling well connector is a key component in a gas station's refueling system, primarily connecting the underground oil pipeline to the fueling nozzle. Its function is to safely and efficiently transfer fuel from underground storage tanks to the fueling nozzle, thereby providing fueling services for vehicles and other equipment. The fueling well connector typically has one end tightly connected to the underground oil pipeline. This connection structure must provide a good seal to prevent fuel leakage. Special sealing materials and fastening devices, such as gaskets, threaded connections, or flange connections, are generally used to ensure stable fuel transmission from the underground pipeline under long-term pressure.

[0003] In the prior art, after the three-inch refueling connector is moved to the ideal position, one person needs to hold the handle while the other person rotates and removes the threaded rod on the brake lever, pulls the brake lever downward so that it contacts the ground, and then rotates the threaded rod again to fix the brake lever. However, the operation is complicated and tedious, requiring two people to cooperate, one person holding the handle while the other person performs multiple steps such as rotating and removing the threaded rod on the brake lever, pulling out and inserting the brake pull, and rotating the threaded rod again to fix it. This not only wastes manpower, but also takes a long time to operate and has low braking efficiency. Summary of the Invention

[0004] The object of the present invention is to provide an active braking device for a refueling well joint that prevents movement, so as to solve the problems raised in the above-mentioned background technology.

[0005] The cam is fixedly mounted on the top of the support frame, and the cam is fixedly mounted on the support frame to prevent the cam from moving.

[0006] Furthermore, a mounting bracket is fixedly mounted on the outer wall of the joint body, a fixing block is fixedly mounted on the top of the mounting bracket, and a square opening is formed on the top of the fixing block.

[0007] Furthermore, the top fixed mounting plate of the mounting sleeve rod has a handle, a threaded rod is provided on the square opening, and a nut is threadedly connected to the outer wall of the threaded rod.

[0008] Furthermore, the diameter of the mounting sleeve is greater than the width of the square opening, and the nut is greater than the cross-section of the square opening.

[0009] Furthermore, a support block is fixedly installed on the bottom end of the support rod, and the material of the support block is steel.

[0010] Furthermore, a pull rod is fixedly installed at the tail of the trapezoidal block, a circular limit block is fixedly installed at one end of the pull rod away from the trapezoidal block, and a pull ring is fixedly installed on one side of the circular limit block.

[0011] Furthermore, the area of ​​the tail of the trapezoidal block is larger than the circular opening between the pull rod and the installation frame, and a square limiting block is fixedly installed on the bottom of the trapezoidal block.

[0012] Furthermore, a guide telescopic rod is fixedly installed between the circular block on the top of the support rod and the inner top wall of the mounting sleeve rod, and a universal wheel is installed on the joint body.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the present invention, during operation, a worker firmly grasps the pull block and handle at the top of the pull cord. The pull block, via the pull cord, pulls the support rod, while the handle simultaneously pulls the connector body to the desired position. Upon releasing the pull block, a return spring pushes the support rod downward, causing the outer wall of the truncated cone to slide against the inclined surface of the trapezoidal block until the cone slides below the trapezoidal block. The two closely fit and contact each other, forming a stable coupling structure that prevents displacement of the support rod and ensures the stability of the brake mechanism. Releasing the pull block and handle at the top of the pull cord enables autonomous braking, providing the connector body with a flexible and efficient braking function.

[0015] 2. In this invention, the engagement state of the trapezoidal block and the truncated table can be precisely controlled during operation using a pull ring and a pull rod. For example, when the engagement needs to be released for special operations such as moving or adjusting equipment, the pull ring can be pulled to release the trapezoidal block from the truncated table. During normal operation, however, the trapezoidal block remains accurately engaged with the truncated table, providing stable positioning of the support rod and improving the control accuracy and reliability of the active braking system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a rear view of the overall structure of the present invention;

[0018] Figure 3 Schematic diagram of the connection structure between the nut and the threaded rod in the present invention;

[0019] Figure 4 Schematic diagram of the connection structure between the support rod and the truncated table in the present invention;

[0020] Figure 5 Schematic diagram of the connection structure between the trapezoidal block and the mounting sleeve rod in the present invention;

[0021] Figure 6 for Figure 4 A magnified view of the structure at point A in the middle.

[0022] In the figure: 1. Connector body; 2. Mounting frame; 3. Fixing block; 4. Handle; 5. Nut; 6. Threaded rod; 7. Mounting sleeve rod; 8. Support rod; 9. Return spring; 10. Round table; 11. Trapezoidal block; 12. Mounting frame; 13. Pull rod; 14. Tension spring; 15. Square limit block; 16. Support block; 17. Pull rope. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1-6 , the present invention provides a technical solution:

[0025] See Figures 1-6As shown, an active braking device for a refueling well joint that prevents movement includes a joint body 1, a mounting sleeve rod 7, and a support rod 8. The support rod 8 is slidably connected to the support rod 8 inside the mounting sleeve rod 7, and a round block adapted to the internal mounting cavity of the mounting sleeve rod 7 is extended from the top of the support rod 8; a reset spring 9 is fixedly mounted between the top round block of the support rod 8 and the inner top wall of the mounting sleeve rod 7; a frustum 10 is fixedly mounted on the circumferential outer wall of the support rod 8, and its shape is set to be wide at the top and narrow at the bottom; a mounting frame 12 is fixedly mounted on the circumferential outer wall of the mounting sleeve rod 7, and a trapezoidal block 11 is slidably connected to the mounting frame 12, and the head of the trapezoidal block 11 extends to the inside of the mounting sleeve rod 7; the trapezoidal block 11 has a cross-section set to a right-angled trapezoid, and its shape is set to be narrow at the top and wide at the bottom; a tension spring 14 is fixedly mounted between the tail of the trapezoidal block 11 and the inner wall of the mounting frame 12; a pull rope 17, a plurality of pull ropes 17 are fixedly mounted on the top of the round block, and a pull block is fixedly mounted on the top of the mounting sleeve rod 7

[0026] During the operation, the staff first firmly grasps the pull block and the handle 4 at the top of the pull rope 17. At this time, the pull block, with the help of the connection of the pull rope 17, pulls the support rod 8 upwards. At the same time, with the help of the handle 4, the connector body 1 can be flexibly pulled to any desired position. Then, when the staff releases the pull block, the return spring 9 pushes the support rod 8 downward by its own elastic force. During this period, the outer wall of the truncated cone 10 and the inclined surface of the trapezoidal block 11 gradually come into contact and slide relative to each other until the truncated cone 10 slides smoothly to the bottom of the trapezoidal block 11. At this time, the bottom of the trapezoidal block 11 fits tightly with the top of the truncated cone 10 and conflicts with each other, thereby building a stable clamping structure. This clamping effect can effectively prevent the support rod 8 from being displaced toward the mounting sleeve rod 7 due to external force when the support block 16 at the bottom end of the support rod 8 is tightly against the ground, thereby effectively ensuring the stability of the entire braking device. At the same time, the pull block at the top of the pull rope 17 and the handle 4 can be loosened to achieve autonomous braking, ultimately realizing the flexible and efficient braking function of the joint body 1.

[0027] See Figure 1 A mounting frame 2 is fixedly mounted on the outer wall of the joint body 1, a fixing block 3 is fixedly mounted on the top of the mounting frame 2, and a square through opening is opened on the top of the fixing block 3.

[0028] The fixing block 3 on the top of the mounting frame 2 and the square opening provided therewith further facilitate the installation of other components. The regular shape of the square opening provides clear positioning and connection mode for the installation of other components.

[0029] In the active braking device for a fuel well joint that prevents movement, a mounting bracket 2, fixed to the outer wall of the joint body 1, provides a stable mounting base for other components. Much like the frame structure of a building, the mounting bracket 2 tightly connects the joint body 1 to subsequently installed components, making the entire device more stable during operation.

[0030] See Figure 1 The top of the mounting sleeve rod 7 is fixed with a handle 4, and a threaded rod 6 is provided on the square through-hole. The outer wall of the threaded rod 6 is threadedly connected with a nut 5.

[0031] The cooperation between threaded rod 6 and nut 5 also enables precise positioning of mounting sleeve 7 on the square opening. During installation, the operator can fine-tune the depth of screwing nut 5 into threaded rod 6 to precisely adjust the height, levelness, and other positioning parameters of mounting sleeve 7, thereby maintaining an optimal relative position between the components within mounting sleeve 7 and the joint body 1 and other related components, thereby ensuring the proper functioning of the device. For example, precise positioning of the sensor within mounting sleeve 7 ensures that it can accurately detect the motion state of the joint body 1, providing reliable data support for the precise control of the active braking system.

[0032] See Figure 5 The diameter of the mounting sleeve 7 is larger than the width of the square opening, and the nut 5 is larger than the cross section of the square opening.

[0033] The diameter of the mounting rod 7 is larger than the width of the square opening, effectively preventing it from accidentally falling out of the square opening. Much like a cork slightly larger than the mouth of a bottle, this interference fit allows the mounting rod 7 to be securely fastened to the square opening after installation. For example, during operation, the refueling well joint may be subject to forces from various directions, such as the pulling force generated by the movement of the refueling vehicle or the impact force generated by the vibration of the refueling equipment itself. The larger diameter of the mounting rod 7 can resist these external forces, ensuring its relative fixation and thus providing a foundation for the stable operation of the entire device.

[0034] Nut 5 is larger than the cross-section of the square opening. When tightened onto threaded rod 6, it acts as a stopper for mounting sleeve 7 from above. This acts like a "cap" on mounting sleeve 7, preventing it from slipping upward out of the square opening. This design also tightens the connection between mounting sleeve 7 and the square opening, allowing the connection to withstand greater loads and further improving the stability of the device in complex operating environments.

[0035] See Figure 1-2 A support block 16 is fixedly installed at the bottom end of the support rod 8, and the material of the support block 16 is steel.

[0036] Steel is a highly strong material, and its use provides strong support for the entire device. When the active braking system engages to prevent the refueling well connector from moving, support block 16 must withstand the connector and any external forces that may be applied to it. Steel's high yield strength and tensile strength effectively resist these forces, preventing support rod 8 from excessively sinking or deforming, thereby ensuring the device can stably secure the connector in its desired position.

[0037] Due to the high rigidity of steel, support block 16 enhances the stability of the device's base. In a working environment like a refueling pit, where interference from factors such as vehicle traffic and equipment vibration is possible, steel support block 16 acts like a solid foundation, firmly anchoring support rod 8 to the ground and reducing overall device sway and displacement, ensuring the active brake system operates reliably under a variety of complex operating conditions.

[0038] See Figure 5 A pull rod 13 is fixedly installed at the tail of the trapezoidal block 11, and a circular limit block is fixedly installed at one end of the pull rod 13 away from the trapezoidal block 11, and a pull ring is fixedly installed on one side of the circular limit block.

[0039] During operation, the pull ring and pull rod 13 precisely control the engagement between the trapezoidal block 11 and the truncated platform 10. For example, to release the engagement for special operations such as moving or adjusting the equipment, the pull ring can be pulled to release the trapezoidal block 11 from the truncated platform 10. During normal operation, however, the trapezoidal block 11 remains securely engaged with the truncated platform 10, providing stable positioning of the support rod 8 and improving the control accuracy and reliability of the active braking system.

[0040] The setting of the pull ring provides a convenient operation point for the staff, allowing them to apply force directly with their hands without the need for other complex tools. The trapezoidal block 11 can be easily controlled through the pull rod 13, thereby completing related operations more efficiently.

[0041] The pull rod 13 and the circular limit block effectively restrain and support the trapezoidal block 11, preventing the trapezoidal block 11 from excessive displacement or shaking due to external forces and other factors during operation, thereby enhancing the stability of the entire structure and maintaining the reliability and safety of the brake device.

[0042] See Figure 5 The area of ​​the tail of the trapezoidal block 11 is larger than the circular opening between the pull rod 13 and the mounting frame 12 , and a square limit block 15 is fixedly installed at the bottom of the trapezoidal block 11 .

[0043] The tail of trapezoidal block 11 is larger than the circular opening between tie rod 13 and mounting frame 12. This design effectively prevents trapezoidal block 11 from falling out of the circular opening. Much like the large end of a cork stuck in a bottle, this structure ensures that trapezoidal block 11 will not easily fall out of mounting frame 12 during operation, even if subjected to significant external forces, such as vibration or misoperation of tie rod 13. This ensures the structural integrity of the device and the stability of the connections between its components.

[0044] The square stopper 15 fixed at the bottom provides additional support and positioning for the trapezoidal block 11. When the trapezoidal block 11 slides within the mounting frame 12 or is in the working position, the square stopper 15 can contact the inner wall or other internal structure of the mounting frame 12, limiting excessive movement of the trapezoidal block 11 and ensuring that it functions in the correct position.

[0045] See Figure 4 A guide telescopic rod is fixedly installed between the circular block at the top of the support rod 8 and the inner top wall of the mounting sleeve rod 7, and a universal wheel is installed on the joint body 1.

[0046] When subjected to external forces, the guide telescopic rods help enhance the structural stability of the entire device. Whether it's horizontal impact forces on the refueling well joint or various forces generated by equipment vibration, the guide telescopic rods work in conjunction with the support rods 8 and the mounting sleeve rods 7 to effectively distribute and withstand these external forces. For example, when a large external force attempts to bend or deform the support rods 8, the guide telescopic rods provide additional support and resistance, preventing damage to the device structure due to uneven force and ensuring stable operation even under complex operating conditions.

[0047] The installation of universal wheels enables the joint body 1 to be moved to the ideal position more flexibly. Workers can easily push the joint body 1 without the need for laborious carrying, which greatly improves work efficiency. The advantage is more obvious especially when the joint position needs to be adjusted frequently.

[0048] Working principle: During the operation, the staff first firmly grasps the pull block and the handle 4 at the top of the pull rope 17. At this time, the pull block, with the help of the connection of the pull rope 17, pulls the support rod 8 upwards. At the same time, the handle 4 can flexibly pull the connector body 1 to any desired position. Then, when the staff releases the pull block, the reset spring 9 pushes the support rod 8 downward by its own elastic force. During this period, the outer wall of the truncated cone 10 gradually comes into contact with the inclined surface of the trapezoidal block 11 and slides relative to each other until the truncated cone 10 slides smoothly to the bottom of the trapezoidal block 11. At this time, the bottom of the trapezoidal block 11 fits tightly with the top of the truncated cone 10 and conflicts with each other, thereby forming a stable clamping structure. This clamping effect can effectively prevent the support rod 8 from being displaced toward the mounting sleeve 7 due to external forces when the support block 16 at the bottom end of the support rod 8 is tightly against the ground, thereby effectively ensuring the stability of the entire brake device and ultimately achieving an efficient braking function for the connector body 1.

[0049] During operation, the pull ring and pull rod 13 precisely control the engagement between the trapezoidal block 11 and the truncated platform 10. For example, to release the engagement for special operations such as moving or adjusting the equipment, the pull ring can be pulled to release the trapezoidal block 11 from the truncated platform 10. During normal operation, however, the trapezoidal block 11 remains securely engaged with the truncated platform 10, providing stable positioning of the support rod 8 and improving the control accuracy and reliability of the active braking system.

Claims

1. An active braking device for a refueling well joint to prevent movement, comprising a joint body (1), a mounting sleeve rod (7), and a support rod (8), characterized in that: The support rod (8) is slidably connected to the interior of the mounting sleeve rod (7), and a round block adapted to the internal mounting cavity of the mounting sleeve rod (7) extends from the top of the support rod (8); A return spring (9) is fixedly mounted between the top round block of the support rod (8) and the inner top wall of the mounting sleeve rod (7); The truncated table (10) is fixedly mounted on the outer circumferential wall of the support rod (8), and its shape is set to be wide at the top and narrow at the bottom; A mounting frame (12) is fixedly mounted on the circumferential outer wall of the mounting sleeve rod (7), a trapezoidal block (11) is slidably connected to the mounting frame (12), and the head of the trapezoidal block (11) extends to the interior of the mounting sleeve rod (7); Trapezoidal block (11), whose cross section is set to be a right-angled trapezoid, and whose shape is set to be narrow at the top and wide at the bottom; A tension spring (14) fixedly mounted between the tail of the trapezoidal block (11) and the inner wall of the mounting frame (12); Draw ropes (17), a plurality of draw ropes (17) are fixedly mounted on the top of the round block, and a draw block is fixedly mounted on the top of the draw ropes (17); A mounting frame (2) is fixedly mounted on the outer wall of the joint body (1), a fixing block (3) is fixedly mounted on the top of the mounting frame (2), and a square opening is provided on the top of the fixing block (3); A handle (4) is fixedly mounted on the top of the fixing block (3), a threaded rod (6) is provided in the square opening, one end of the threaded rod (6) extends out of the square opening, and the other end is fixedly connected to the mounting sleeve rod (7), and a nut (5) is threadedly connected to the outer wall of the threaded rod (6); A support block (16) is fixedly mounted on the bottom end of the support rod (8), and the material of the support block (16) is steel; A pull rod (13) is fixedly mounted on the tail of the trapezoidal block (11), a circular limit block is fixedly mounted on one end of the pull rod (13) away from the trapezoidal block (11), and a pull ring is fixedly mounted on one side of the circular limit block; A guide telescopic rod is fixedly installed between the round block at the top of the support rod (8) and the inner top wall of the mounting sleeve rod (7), and a universal wheel is installed on the joint body (1).

2. The active braking device for preventing the refueling well joint from moving according to claim 1, characterized in that: The diameter of the mounting sleeve rod (7) is greater than the width of the square opening.

3. The active braking device for preventing the refueling well joint from moving according to claim 2, characterized in that: The area of ​​the tail of the trapezoidal block (11) is larger than the area of ​​the circular opening between the pull rod (13) and the installation frame (12), and a square limiting block (15) is fixedly installed on the bottom of the trapezoidal block (11).

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