Emergency leaking stoppage device for tank car

Abstract

The utility model belongs to the technical field of leaking stoppage tool design, and particularly relates to a tank car emergency leaking stoppage device which comprises a pull rod, two connecting rods are hinged to the end portion of the first end of the pull rod, the two connecting rods are hinged to sealing faces of two sealing bases respectively, and the two sealing bases are movably connected together through a public edge. The two sealing bases have a folding state and an unfolding state, when the magnetic conductive push cylinder on the pull rod slides to push the two sealing bases to be unfolded, the magnetic conductive push cylinder is fixed through a nut, then the magnetic conductive push cylinder is sleeved with a fixing base, and at least one permanent magnet set and a magnetic pole adjusting piece are arranged in the fixing base. And the magnetic pole adjusting piece is connected with the movable permanent magnet of the permanent magnet group. The device is simple in structure, low in production cost, simple and convenient to operate and very convenient to subsequently disassemble, subsequent maintenance and reutilization are facilitated, the fixed seat and the magnetic conductive push cylinder are adsorbed and fixed by adopting magnetic force, chemical reaction with substances in the tank body is not easy to occur in the leaking stoppage process, and secondary accidents can be avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of leak-sealing tool design, specifically relating to a device for emergency leak sealing of tank trucks. Background Technology

[0002] Tank trucks, as a means of transporting hazardous chemicals, are characterized by strong adaptability, large carrying capacity, flexibility, and efficiency. However, during actual transportation, tank trucks are susceptible to unpredictable factors, and given the special nature of the hazardous chemicals they transport, leaks can easily occur, leading to accidents such as fires and explosions. Therefore, in the event of leaks during tank truck transportation, timely emergency leak sealing using technical means is particularly important.

[0003] However, to date, tank truck body leak-sealing devices are incomplete and difficult to effectively stop leaks in the tank. For example, Chinese patent CN209943502U describes an injection-type leak-sealing device that uses a fixed pipe to supply adhesive to achieve a squeezing and blocking effect at the leak point. However, this device is only suitable for flange leaks and cannot seal leaks in the tank body of the tank truck. Furthermore, the adhesive material can only achieve a one-time leak stop, and subsequent cleaning is required when repairing the tank, making the workflow complex. Another example is Chinese patent CN216307413U, which discloses a device for sealing leaks at different angles and locations. However, this device is relatively complex to use, has a slow leak-sealing speed, and its components, such as the lifting and adjusting cylinders and the leak-sealing adjusting cylinders, are electrically connected to the controller. The resulting electrical sparks can easily ignite hazardous chemicals, leading to more serious secondary accidents.

[0004] As can be seen from the above, there are some research results on emergency leak sealing when tank truck bodies leak, but the following problems still exist: 1. Tank truck leak sealing is a one-time sealing method, which is not conducive to subsequent repairs; 2. The operation process of tank truck leak sealing device is complicated, resulting in slow sealing speed; 3. Tank truck leak sealing device has electrical connections, which can easily cause secondary accidents. Utility Model Content

[0005] This utility model provides a device for emergency leak sealing of tank trucks, including a pull rod. Two connecting rods are hinged to the first end of the pull rod, and the two connecting rods are respectively hinged to the sealing surfaces of two sealing bases. The two sealing bases are movably connected together through a common edge, and the two sealing bases have two states: folded and unfolded. A magnetic pusher is slidably sleeved on the pull rod. The first end of the magnetic pusher has a clearance groove, which allows the connecting rod to be positioned within the clearance groove when the magnetic pusher slides to push against the unfolded sealing bases. A nut is threaded to the second end of the pull rod, allowing the magnetic pusher to slide to push against the unfolded sealing bases. When the two sealing bases are unfolded, the magnetic push cylinder is fixed; the magnetic push cylinder is fitted with a fixed seat, the fixed seat is provided with a notch, and the inner wall of the fixed seat is provided with a receiving groove coaxial with the pull rod for accommodating the second end of the pull rod and the nut; at least one permanent magnet group is provided inside the fixed seat, the permanent magnet group includes a fixed permanent magnet and a movable permanent magnet, the fixed seat is provided with a magnetic pole adjustment component, the magnetic pole adjustment component is connected to the movable permanent magnet, and is used to change the closed path of the magnetic field lines between the movable permanent magnet and the fixed permanent magnet, thereby changing the magnitude of the magnetic attraction force between the fixed seat and the magnetic push cylinder.

[0006] In one specific embodiment, the sealing base is a flexible sealing block, or the sealing base is a rigid component, and the sealing surface of the sealing base is provided with a flexible sealing layer.

[0007] In one specific embodiment, the common edge of the two sealing bases is a flexible connecting strip or a hinge shaft.

[0008] In one specific embodiment, the magnetic pusher cylinder is made of low-carbon steel, and the fixing base is made of silicon steel or nickel-iron alloy.

[0009] In one specific embodiment, the magnetic pole adjusting component is a rotary handle, the rotation shaft of the rotary handle is connected to the middle part of the movable permanent magnet, the rotary handle is provided with a locking pin, and the fixed base has a locking hole.

[0010] In one specific embodiment, the outer wall of the magnetic pusher is covered with a rubber layer, and the surface of the rubber layer is provided with a grid pattern.

[0011] This utility model has at least the following beneficial effects: the device has a simple structure, low production cost, and is easy to operate. It can significantly reduce the time spent on plugging leaks, achieve rapid initial plugging, and is both effective and reliable, saving time and effort. Moreover, it is very convenient to disassemble later, which is conducive to subsequent maintenance and reuse of the device. The fixed seat and the magnetic push cylinder are fixed by magnetic adsorption, and the plugging process is not prone to chemical reaction with the substances in the tank, which can effectively avoid secondary accidents. Attached Figure Description

[0012] Figure 1 This is a folded view of the assembly structure of the pull rod and sealing base in this utility model.

[0013] Figure 2 This is a folded view of the assembly structure of the pull rod, sealing base, and magnetic push cylinder in this utility model.

[0014] Figure 3 This is an unfolded view of the assembly structure of the pull rod, sealing base, and magnetic push cylinder in this utility model.

[0015] Figure 4 for Figure 3 Partial longitudinal section structural diagram.

[0016] Figure 5 This is a three-dimensional structural diagram of the magnetic pusher cylinder of this utility model.

[0017] Figure 6 This is a structural diagram of the fixed base in this utility model.

[0018] Figure 7 This is a structural diagram of the present invention after the fixing base is installed for leak sealing.

[0019] Figure 8 for Figure 7 Partial longitudinal section structural diagram.

[0020] Figure 9 for Figure 8 A partial longitudinal section diagram of the structure after the fixing base and the magnetic push cylinder are magnetically fixed together.

[0021] Reference numerals: 1. Pull rod; 2. Connecting rod; 3. Sealing base; 31. Flexible sealing layer; 4. Magnetic guide cylinder; 41. Clearance groove; 5. Nut; 6. Fixing seat; 61. Notch; 62. Fixed permanent magnet; 63. Movable permanent magnet; 64. Magnetic pole adjusting component; 7. Tank car; 71. Leakage hole. Detailed Implementation

[0022] Please see Figure 1 This utility model provides a device for emergency leak sealing of tank trucks, including a pull rod 1. Two connecting rods 2 are hinged to the first end of the pull rod 1. The two connecting rods 2 are respectively hinged to the sealing surfaces of two sealing bases 3. The two sealing bases 3 are movably connected together through a common edge. The sealing bases 3 are rigid components, and the sealing surfaces of the sealing bases 3 are provided with a flexible sealing layer 31, which can be made of rubber. The common edge of the two sealing bases 3 is a flexible connecting strip, which can also be made of rubber, thus allowing the two sealing bases 3 to be movably connected and to have both folded and unfolded states.

[0023] Please see Figures 2-5 A magnetic pusher 4 is slidably mounted on the pull rod 1. The first end of the magnetic pusher 4 has a relief groove 41. When the magnetic pusher 4 slides towards the sealing base 3, it can push against the two sealing bases 3 from... Figure 2 The folded state shown moves to Figure 3 and Figure 4 In the unfolded state shown, with the two sealing bases 3 in the unfolded state, the two connecting rods are located within the clearance grooves 41. The second end of the pull rod 1 is threaded with a nut 5, which is used to fix the magnetic push cylinder 4 when it slides to push against the two sealing bases 3 and unfolds.

[0024] Please see Figures 6-9 The magnetic pusher 4 is fitted with a fixed base 6. The fixed base 6 has a notch 61 and an inner wall with a receiving groove coaxial with the pull rod 1 to receive the second end of the pull rod 1 and the nut 5. The magnetic pusher 4 is made of low carbon steel, and the fixed base 6 is made of silicon steel or nickel-iron alloy, possessing high magnetic permeability and low magnetic loss. The fixed base 6 contains two permanent magnet groups located inside the side wall of the fixed base 6. The permanent magnet groups include a fixed permanent magnet 62 and a movable permanent magnet 63. The fixed base 6 has a magnetic pole adjustment component 64, which is a rotating handle. The rotating shaft of the rotating handle is connected to the middle of the movable permanent magnet 63. This connection can be a direct fixed connection as in existing technology, or a gear or gear drive connection as in existing technology. Rotating the handle drives the movable permanent magnet 63 to rotate, changing the closed path of the magnetic field lines between the movable permanent magnet 63 and the fixed permanent magnet 62, thereby changing the magnitude of the magnetic attraction between the fixed base 6 and the magnetic pusher 4. The rotating handle is equipped with a locking pin, and the fixed base 6 has a locking hole. When the rotating handle drives the movable permanent magnet 63 to rotate to the designated position, the rotating handle can be fixed by the cooperation of the locking pin and the locking hole, thereby fixing the movable permanent magnet 63. This structure of fixing the rotating handle by the locking pin and the locking hole is an existing structure, and the specific structure will not be described in detail here. To prevent direct contact and wear when the magnetic push cylinder 4 and the fixed base 6 are inserted, the outer wall of the magnetic push cylinder 4 is covered with a rubber layer (not shown in the figure), and a grid pattern is set on the surface of the rubber layer to increase the friction and resist the displacement between the magnetic push cylinder 4 and the fixed base 6 caused by the vibration of the tank car.

[0025] The working principle of this utility model is as follows: First, fold the two sealing bases 3 at the first end of the pull rod 1 and insert them into the leakage hole 71 of the tank car 7. Then, put the magnetic pusher 4 on the pull rod 1 and push the magnetic pusher 4 into the leakage hole 71. At the same time, pull the pull rod 1 slightly out of the leakage hole 71. The end of the first end of the magnetic pusher 4 presses against the two sealing bases 3 and pushes the two sealing bases 3 to the point where... Figure 7In the unfolded state shown, maintain a slight pulling force on the pull rod 1 towards the drain hole 71, ensuring that the sealing surfaces of the two sealing bases 3 are tightly sealed against the inner wall surrounding the drain hole 71 of the tank car 7. Then, screw the nut 5 into the second end of the pull rod 1 and fix the magnetic push cylinder 4 in place. Next, pinch the magnetic push cylinder 4 with your fingers and place the fixing seat 6 onto the magnetic push cylinder 4, so that the fixing seat 6 abuts against the outer wall of the tank car 7. The second end of the pull rod 1 and the nut 5 are inserted into the receiving groove of the fixing seat 6, achieving the desired effect. Figure 6 The installation state is shown. At this time, because the movable permanent magnet 63 and the fixed permanent magnet 62 within the mounting base 6 are as shown... Figure 8 The opposite magnetic poles shown are opposite to each other, and the closed path of the magnetic field lines between them is small and does not pass through the magnetically guided push cylinder 4. The magnetic attraction between the fixed base 6 and the magnetically guided push cylinder 4 is small or non-existent. Rotating the handle drives the movable permanent magnet 63 to rotate as shown... Figure 9 The state of the movable permanent magnet 63 and the fixed permanent magnet 62 with their like magnetic poles facing each other makes the closed path range of the magnetic field lines of the movable permanent magnet 63 and the fixed permanent magnet 62 larger. When passing through the magnetic push cylinder 4, there is a large magnetic attraction between the fixed seat 6 and the magnetic push cylinder 4, thereby firmly fixing the magnetic push cylinder 4 and the fixed seat 6, and achieving the initial sealing of the tank truck 7.

[0026] Of course, in other embodiments of this utility model, the sealing base 3 can also be a flexible sealing block. However, under the action of the pull rod 1 pulling outward, the flexible sealing block cannot fit well with the inner wall around the leakage hole 71. But after it is unfolded, there is enough sealing margin between it and the leakage hole 71, which can also achieve the initial sealing of the leakage hole 71. The common edge of the two sealing bases 3 can also be a hinge shaft. This structure is relatively complex, but it can also achieve the purpose of this utility model.

[0027] Of course, in other embodiments of this utility model, both the magnetic pusher 4 and the fixed base 6 can be configured as square structures.

[0028] Of course, in other embodiments of this utility model, the fixing base 6 can also be designed as a double-layer structure with an outer cylinder fitted onto an inner cylinder. Two fixed permanent magnets 62 are placed inside the side wall of the inner cylinder, located on the same diameter line of the inner cylinder, with opposite magnetic pole directions. Two movable permanent magnets 63 are placed inside the side wall of the outer cylinder, located on the same diameter line of the outer cylinder, with opposite magnetic pole directions. This design allows the two sets of permanent magnets with opposite magnetic poles to be switched to two sets with identical magnetic poles by directly rotating the outer cylinder 180°, thereby changing the closed path range of the magnetic field lines of the movable permanent magnets 63 and the fixed permanent magnets 62. After rotation between the inner and outer cylinders, a conventional pin fixing structure can be used for fixation.

[0029] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions and substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A device for emergency leak sealing in tank trucks, characterized in that, The device includes a pull rod (1), with two connecting rods (2) hinged to the first end of the pull rod (1). The two connecting rods (2) are respectively hinged to the sealing surfaces of two sealing bases (3). The two sealing bases (3) are movably connected together through a common edge. The two sealing bases (3) have two states: folded and unfolded. A magnetic pusher cylinder (4) is slidably sleeved on the pull rod (1). The first end of the magnetic pusher cylinder (4) is provided with a relief groove (41) for the connecting rod to be located in the relief groove (41) when the magnetic pusher cylinder (4) slides to push against the unfolded two sealing bases (3). A nut (5) is threaded to the second end of the pull rod (1) for the magnetic pusher cylinder (4) to be nutted when it slides to push against the unfolded two sealing bases (3). The cylinder (4) is fixed; the magnetic push cylinder (4) is fitted with a fixed seat (6), the fixed seat (6) is provided with a notch (61), the inner wall of the fixed seat (6) is provided with a receiving groove coaxial with the pull rod (1) for accommodating the second end of the pull rod (1) and the nut (5); at least one permanent magnet group is provided inside the fixed seat (6), the permanent magnet group includes a fixed permanent magnet (62) and a movable permanent magnet (63), the fixed seat (6) is provided with a magnetic pole adjustment component (64), the magnetic pole adjustment component (64) is connected to the movable permanent magnet (63) for changing the closed path of the magnetic field lines between the movable permanent magnet (63) and the fixed permanent magnet (62), thereby changing the magnitude of the magnetic attraction between the fixed seat (6) and the magnetic push cylinder (4).

2. The device for emergency leak sealing of tank trucks according to claim 1, characterized in that, The sealing base (3) is a flexible sealing block, or the sealing base (3) is a rigid component, and the sealing surface of the sealing base (3) is provided with a flexible sealing layer (31).

3. The device for emergency leak sealing of tank trucks according to claim 1, characterized in that, The common edge of the two sealing bases (3) is a flexible connecting strip or a hinge shaft.

4. The device for emergency leak sealing of tank trucks according to claim 1, characterized in that, The magnetic pusher (4) is made of low carbon steel, and the fixed base (6) is made of silicon steel or nickel-iron alloy.

5. The device for emergency leak sealing of tank trucks according to claim 1, characterized in that, The magnetic pole adjustment component (64) is a rotating handle. The rotating shaft of the rotating handle is connected to the middle part of the movable permanent magnet (63). The rotating handle is provided with a locking pin, and the fixed base (6) has a locking hole.

6. The device for emergency leak sealing of tank trucks according to claim 1, characterized in that, The outer wall of the magnetic pusher (4) is covered with a rubber layer, and the surface of the rubber layer is provided with a grid pattern.

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