A flexible and expandable flange leak plugging tool and its use method

Abstract

The present invention discloses a flexible, expandable flange plugging tool and its use method. The tool primarily comprises a flexible plugging tie and plugging adhesive. The flexible plugging tie is composed of a plurality of plugging pieces connected in series via connecting bolts; a tightening assembly is provided at the end of the flexible plugging tie; and the plugging adhesive is provided on the inner surface of the flexible plugging tie. The flexible plugging tie can be tightened around a leaking flange via the tightening assembly, and the plugging adhesive can be squeezed into the leaking flange. The flexible, expandable flange plugging tool and its use method provided by the present invention have a simple structure, are easy to operate, and can be quickly assembled to accommodate various flange sizes, effectively improving the efficiency of emergency plugging of flanges on pressurized tank trucks.

Description

Technical Field

[0001] The invention belongs to the technical field of leak-plugging devices, and in particular relates to a flexible and expandable flange leak-plugging tool and a use method thereof. Background Art

[0002] Pressurized tank trucks are the primary mode of transport for hazardous chemicals. They are prone to damage due to factors such as rollovers, rear-end collisions, scrapes, corrosion from the media, weld defects, and damage to sealing materials. This can lead to leaks, combustion, and explosions of hazardous chemicals, resulting in uncontrollable damage to people's lives and property. Flanges are one of the most vulnerable parts of tank trucks. Firefighters typically use injection-type plugging tools to seal leaks from pressurized tank truck flanges.

[0003] The injection-type leak-proof tool mainly consists of a fixture, a glue injection gun head, a glue injection pump, and leak-proof glue. The method of use is: first install the fixture at the leaking part, then screw the external thread of the glue injection gun head onto the internal thread of the glue injection valve on the fixture, then choose suitable pressurized sealant to fill the side filling port of the glue injection gun head, and finally repeatedly press the glue injection pump handle to inject the leak-proof glue into the fixture until there is no leakage.

[0004] However, injection-type leak plugging tools have the following shortcomings: the size of the leakage flange is not fixed, and a fixture needs to be made on site; the location of tank truck leakage accidents is not fixed, mainly in suburban areas and on highways in the wild, so it is difficult to make fixtures on site and a lot of time is needed to prepare; the technical requirements for operators are high, and the cooperation of multiple people is required, which is not suitable for rapid response and disposal by fire brigades.

[0005] Therefore, there is an urgent need for a flange leak plugging tool that is simple to operate, fast and reliable to meet the emergency needs of fire brigades in plugging the leakage of flanges of pressurized tank trucks. Summary of the Invention

[0006] In order to make up for the above-mentioned deficiencies of existing flange plugging tools when in use, the present invention provides a flexible and expandable flange plugging tool and a method of using the same, which is simple to operate, fast and reliable, and can be applied to plugging flanges of different sizes.

[0007] In order to achieve the above-mentioned purpose, the flexible and expandable flange sealing tool provided by the present invention mainly includes: a flexible sealing tie and sealing glue, the ends of the flexible sealing tie form a closed loop with adjustable tightness through a tightening component; the inner surface of the flexible sealing tie is provided with sealing glue; the flexible sealing tie can be tightened around the leaking flange through the tightening component and the sealing glue can be squeezed into the leaking flange.

[0008] Furthermore, the flexible leak-proof tie is composed of a plurality of leak-proof sheets connected in series via connecting bolts.

[0009] Furthermore, the tightening assembly includes two tongue depressors, a tightening bolt and a tightening nut. The two tongue depressors are connected by the tightening bolt. Under the action of the tightening bolt and the tightening nut, the two tongue depressors can be arranged in an interlaced and seamless manner, and the relative displacement can be converted into centripetal pressure during the tightening process.

[0010] Furthermore, the tongue depressor includes a tongue depressor body and a protrusion; the tongue depressor body is an arc-shaped protrusion with a gradually changing thickness; the thickness of the tongue depressor body gradually becomes thinner as it moves away from the connection point between the tongue depressor and the connecting bolt; the curvature of the inner surface of the tongue depressor body can fit tightly with the outer ring of the leakage flange, and the curvature of the outer surface of the tongue depressor body can also fit tightly with the curvature of the inner surface; a bayonet is provided on the protrusion, and the bayonet of the two tongue depressors is connected by tightening the bolts.

[0011] Furthermore, an annular leak-proof gasket may be provided on the inner surface of the flexible leak-proof tie, and leak-proof glue may be provided on the inner surface of the leak-proof gasket.

[0012] Furthermore, the leak-proof gasket is arranged on the inner surface of the flexible leak-proof tie by gluing.

[0013] Furthermore, the leak-proof glue is provided on the inner surface of the leak-proof gasket by pasting.

[0014] The present invention also provides a corresponding method of use for the flexible and expandable flange plugging tool composed of the above structure, which comprises the following steps:

[0015] (1) Measure the size of the leakage flange;

[0016] (2) Assemble the flexible sealing tie, calculate the required length of the sealing tie and the number of sealing pieces according to the size of the leaking flange, and complete the assembly of the flexible sealing tie by connecting the bolts and the sealing pieces;

[0017] (3) Install the tightening assembly and connect the head and tail ends of the flexible plugging tie to the tongue pressing piece respectively through the connecting bolts;

[0018] (4) Install the leak-proof gasket and stick it to the inner surface of the flexible leak-proof tie;

[0019] (5) Apply sealing glue to the inner surface of the sealing gasket;

[0020] (6) The method of using the flexible expandable flange plugging tool is to lay the flexible expandable flange plugging tool with the above-mentioned structure along the leaking flange and close it, and insert the tightening bolt into the bayonet of the two tongue pressing pieces;

[0021] (7) Tightening operation: tighten the tightening nut. Under the pressure of the flexible sealing tie and the tongue piece being gradually tightened, the sealing glue will be squeezed into the gap of the leaking flange until the leaking flange stops leaking.

[0022] The flexible and expandable flange plugging tool and the method of use provided by the present invention connect the plugging pieces in sequence through connecting bolts to form a flexible plugging tie. By arranging plugging glue on the inner surface of the plugging tie, the plugging tie is fastened to the periphery of the leaking flange by tightening the assembly and squeezing the plugging glue into the leaking flange, thereby achieving a plugging effect. At the same time, the plugging tie can be expanded arbitrarily, has a simple structure, is easy to operate, and can meet different flange sizes after quick assembly, thereby effectively improving the efficiency of emergency sealing of the flange of the pressure tank truck. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a schematic diagram of the structure of the flexible and expandable flange plugging tool in this example.

[0025] Meaning of the symbols in the figure:

[0026] Flexible expandable flange sealing tool 100, flexible sealing tie 110, sealing piece 111, connecting bolt 112, tongue pressing piece 120, bayonet 121, tongue pressing piece body 122, protrusion 123, tightening bolt 130, tightening nut 131, sealing glue 140, sealing gasket 150. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0028] Since existing flange plugging tools are time-consuming and labor-intensive, have high technical requirements for operators, and are inconvenient to operate, this example provides a flexible and expandable flange plugging tool with a simple structure, easy operation, and the ability to meet different flange sizes after quick assembly, effectively improving the efficiency of emergency plugging of flanges on pressurized tank trucks.

[0029] like Figure 1 As shown, the flexible expandable flange sealing tool 100 provided in this example mainly includes: a flexible sealing tie 110 and a sealing glue 140.

[0030] Specifically, the flexible leak-proof tie 110 is composed of several leak-proof pieces 111 connected in series through connecting bolts 112. Based on this setting, in specific applications, the required length of the flexible leak-proof tie 110 and the required number of leak-proof gaskets 111 can be calculated according to the size of the flange. It has good flexibility and can fit more closely with the flange.

[0031] When the plugging piece 111 is specifically set up here, a limiting piece can also be set on the plugging piece 111. The limiting piece is perpendicular to the plugging piece and points to the center of the circle. Several limiting pieces can cooperate with several plugging pieces 111 to form a circle when shrinking and shrink toward the center of the circle. At the same time, the plugging glue 140 is limited in the plugging piece 111 to ensure that the plugging glue 140 is vertically pressed on the leaking pipe to prevent the plugging glue 140 from overflowing.

[0032] As an example, the limiting piece can be set to be a trapezoid, and the long bottom side of the trapezoid is connected to the leak-proof piece 111.

[0033] At the same time, tightening components are provided at the head and tail of the flexible leak-proof tie 110, and a closed loop with adjustable tightness is formed by the tightening components to fasten the flexible leak-proof tie 110 to the periphery of the flange.

[0034] The tightening assembly here includes two tongue depressors 120 , a tightening bolt 130 and a tightening nut 131 .

[0035] The two tongue depressors 120 are respectively connected at the head and tail ends of the flexible leak-proof tie 110 through connecting bolts 112. The two tongue depressors 120 are arranged in coordination and staggered with each other without faults. During the tightening process, the relative displacement can be converted into centripetal pressure, and the bundling tightening force is large.

[0036] The tongue depressor 120 here is composed of a tongue depressor body 122 and a protrusion 123.

[0037] Specifically, the tongue pressing piece 122 is set as an arc-shaped protrusion with a gradually changing thickness, and its thickness gradually becomes thinner as it moves away from the connection point between the tongue pressing piece 120 and the connecting bolt 112; the curvature of the inner surface of the tongue pressing piece 122 can fit tightly with the outer ring of the leakage flange, and the curvature of the outer surface of the tongue pressing piece 122 can also fit tightly with the curvature of the inner surface. Such a structural setting enables the two tongue pressing pieces 122 to be interlaced with each other without faults under the action of the tightening bolt 130 and the tightening nut 131, and the relative displacement can be converted into centripetal pressure during the tightening process, and the bundling tightening force is large.

[0038] Furthermore, a bayonet 121 is provided on the protrusion 123 , and two bayonet 121 are connected by tightening bolts 130 .

[0039] The structure of the bayonet 121 can be set according to the shape of the tightening bolt 130 during specific implementation, and is not specifically limited here.

[0040] The tightening bolt 130 is matched with a tightening nut 131 , and the two tongue depressors 120 can achieve a linear and tight fit under the action of the tightening bolt 130 and the tightening nut 131 .

[0041] On this basis, this example further provides a leak-proof glue 140 on the inner surface of the flexible leak-proof tie 110 to effectively seal the leaking flange.

[0042] During specific implementation, in order to prevent the sealing glue 140 from overflowing from the gap between the sealing piece 111 and the connecting bolt 112 of the flexible sealing tie 110, this example can also provide an annular sealing gasket 150 on the inner surface of the flexible sealing tie 110 to better fit the leakage flange to prevent the sealing glue 140 from leaking.

[0043] The leak-proof gasket 150 is made of a material with good flexibility and elasticity, and is preferably attached to the inner surface of the flexible leak-proof tie 110 by gluing.

[0044] Furthermore, a sealing glue 140 is set on the inner surface of the sealing gasket 150. The sealing glue 140 here is preferably a glue with extremely strong tensile resistance and elastic deformation ability. It is set on the inner surface of the sealing gasket 150 by pasting, so that the leaking flange can be better effectively sealed.

[0045] With such a structural arrangement, under the pressure of the progressive tightening of the flexible sealing tie 110 and the tongue depressor 120 , the sealing glue 140 will be squeezed into the flange gap to achieve a sealing effect.

[0046] In view of the above-mentioned setting scheme of the flexible expandable flange plugging tool 100, a method for using the flexible expandable flange plugging tool 100 is further provided herein, which specifically includes the following steps:

[0047] (1) Measure the size of the leakage flange;

[0048] (2) Assemble the flexible sealing tie 110. Calculate the required length of the sealing tie 110 and the number of sealing pieces 111 required based on the size of the leaking flange, and complete the assembly of the flexible sealing tie 110 by connecting the bolts 112 and the sealing pieces 111.

[0049] (3) Install the tightening assembly and connect the head and tail ends of the flexible leak-proof tie 110 to the tongue depressor 120 respectively through the connecting bolts 112;

[0050] (4) Install the leak-proof gasket 150 and stick it to the inner surface of the flexible leak-proof tie 110;

[0051] (5) Setting the sealing glue 140 and sticking the sealing glue 140 to the inner surface of the sealing gasket 150;

[0052] (6) The method of using the flexible expandable flange plugging tool 100 is to lay the flexible expandable flange plugging tool 100 with the above-mentioned structure along the leaking flange and close it, and insert the tightening bolt 130 into the bayonet 121 of the two tongue pressing pieces 120;

[0053] (7) Tightening operation: tighten the tightening nut 131. Under the pressure of the progressive tightening of the flexible sealing tie 110 and the tongue pressure piece 120, the sealing glue 140 will be squeezed into the gap of the leaking flange until the leaking flange stops leaking.

[0054] The flexible and expandable flange plugging tool and the method of use provided by the present invention connect the plugging pieces in sequence through connecting bolts to form a flexible plugging tie. By arranging plugging glue on the inner surface of the plugging tie, the plugging tie is fastened to the periphery of the leaking flange by tightening the assembly and squeezing the plugging glue into the leaking flange, thereby achieving a plugging effect. At the same time, the plugging tie can be expanded arbitrarily, has a simple structure, is easy to operate, and can meet different flange sizes after quick assembly, thereby effectively improving the efficiency of emergency sealing of the flange of the pressure tank truck.

[0055] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible and expandable flange plugging tool, characterized in that: Mainly include: A flexible leak-proof tie and leak-proof glue, the ends of the flexible leak-proof tie form a closed loop with adjustable tightness through a tightening component; the inner surface of the flexible leak-proof tie is provided with leak-proof glue; the flexible leak-proof tie is composed of a number of leak-proof pieces connected in series by connecting bolts, and a limiting piece is provided on the leak-proof piece, the limiting piece is set in a trapezoidal shape, and the long bottom side of the trapezoid is connected to the leak-proof piece, and the limiting piece is perpendicular to the leak-proof piece and points to the center of the circle. A number of limiting pieces can cooperate with a number of leak-proof pieces to form a circle and shrink to the center of the circle when contracted, and at the same time limit the leak-proof glue in the leak-proof piece to prevent the leak-proof glue from overflowing. The flexible leak-proof tie can be fastened around the leakage flange through the tightening component and squeeze the leak-proof glue into the leakage flange.

2. The flexible expandable flange plugging tool according to claim 1, characterized in that: The tightening assembly includes two tongue depressors, a tightening bolt and a tightening nut. The two tongue depressors are connected by the tightening bolt. Under the action of the tightening bolt and the tightening nut, the two tongue depressors can be staggered and seamlessly matched with each other, and the relative displacement can be converted into centripetal pressure during the tightening process.

3. The flexible expandable flange plugging tool according to claim 2, characterized in that: The tongue depressor includes a tongue depressor body and a protrusion; the tongue depressor body is an arc-shaped protrusion with a gradually changing thickness; the thickness of the tongue depressor body gradually becomes thinner as it moves away from the connection point between the tongue depressor and the connecting bolt; the curvature of the inner surface of the tongue depressor body can fit tightly with the outer ring of the leakage flange, and the curvature of the outer surface of the tongue depressor body can also fit tightly with the curvature of the inner surface; a bayonet is provided on the protrusion, and the bayonet of the two tongue depressors is connected by tightening the bolt.

4. The flexible expandable flange plugging tool according to claim 1, characterized in that: The inner surface of the flexible leak-proof tie may also be provided with an annular leak-proof gasket, and the inner surface of the leak-proof gasket is provided with leak-proof glue.

5. The flexible expandable flange plugging tool according to claim 4, characterized in that: The leak-proof gasket is arranged on the inner surface of the flexible leak-proof cable tie by pasting.

6. The flexible expandable flange leak plugging tool according to claim 4, characterized in that: The leak-proof glue is arranged on the inner surface of the leak-proof gasket by pasting.

7. A method for using the flexible expandable flange plugging tool according to any one of claims 1 to 6, characterized in that: The steps include: (1) Measure the size of the leakage flange; (2) Assemble the flexible plugging tie. According to the size of the leaking flange, calculate the required length of the plugging tie and the number of plugging pieces required, and complete the combination of the flexible plugging tie by connecting the bolts and the plugging pieces; (3) Install the tightening assembly and connect the head and tail ends of the flexible plugging tie to the tongue pressing piece through the connecting bolts; (4) Place the leak-proof gasket and stick it to the inner surface of the flexible leak-proof tie; (5) Apply the sealing glue and stick it on the inner surface of the sealing gasket; (6) The method of using the flexible expandable flange plugging tool is to lay the flexible expandable flange plugging tool with the above structure along the leaking flange and close it, and insert the tightening bolt into the bayonet of the two tongue pressing pieces; (7) Tightening operation: Tighten the tightening nut. Under the pressure of the flexible sealing tie and the tongue piece being gradually tightened, the sealing glue will be squeezed into the gap of the leaking flange until the leaking flange stops leaking.

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