A sealing tool and method of use thereof

Abstract

The application discloses a sealing tool and a use method thereof, relates to the technical field of instrument pressure test tools, and comprises a magnetic float liquid level meter, a branch pipe, a sealing cover, a sealing boss and a connecting fixing part.The connecting fixing part comprises a fixing screw, a lifting ring nut and a buckling belt.The sealing of the branch pipe is realized by the sealing boss entering the branch pipe, cooperating with the branch pipe and being blocked, and the sealing cover further covers and seals the opening of the branch pipe.The one end of the buckling belt is connected to the lifting ring nut, passes above the magnetic float liquid level meter, the other end of the buckling belt is connected to another lifting ring nut, the buckling belt and the lifting ring nut form a basket structure, the branch pipe and the sealing cover are tightened and fixed, the sealing of the branch pipe is completed, and the problem that the branch pipe matched with the magnetic float liquid level meter does not have a corresponding sealing structure is solved, so that the branch pipe matched with the magnetic float liquid level meter can be sealed.

Description

Technical Field

[0001] This application relates to the field of instrument and meter pressure testing fixtures technology, and in particular to a sealing fixture and its usage method. Background Technology

[0002] Magnetic level gauges are level instruments that can measure, monitor, and control liquid levels, enabling remote operation. They are widely used in industries such as petroleum, chemical, metallurgy, power, food, papermaking, and environmental protection. Pressure testing is an essential step in the manufacturing process of magnetic level gauges, as it allows for the detection of their safety performance.

[0003] However, during the pressure test, the magnetic level gauge often requires only a matching welded pipe (branch pipe), but the welded pipe does not have a corresponding sealing structure, which makes it impossible to conduct the pressure test of the magnetic level gauge.

[0004] Therefore, we need a sealing fixture and its usage method to solve the problem that the branch pipe of the magnetic float level gauge does not have a corresponding sealing structure, so as to seal the branch pipe of the magnetic float level gauge. Summary of the Invention

[0005] The purpose of this application is to solve the problem that the branch pipe of the magnetic float level gauge does not have a corresponding sealing structure. In order to solve the above problem, this application provides a sealing tool and its usage method, which can seal the branch pipe of the magnetic float level gauge.

[0006] To achieve the above objectives, the embodiments of this application adopt the following technical solutions: A sealing fixture includes: a magnetic level gauge; multiple branch pipes disposed below and welded to the magnetic level gauge; a sealing cap disposed below and connected to the branch pipe, the sealing cap having multiple connection holes for sealing the branch pipe; and multiple sealing bosses disposed inside the branch pipe and connected to the sealing cap for engaging with the branch pipe to seal it.

[0007] The connecting and fixing parts are located inside the connecting holes, and multiple connecting and fixing parts are provided. The connecting and fixing parts are used to prevent the sealing cover from loosening. The connecting and fixing parts include: fixing screws, which are located inside the connecting holes, and multiple fixing screws are provided; lifting eye nuts, which are located on the connecting holes and cooperate with the fixing screws, and multiple lifting eye nuts are provided; and tightening straps, which are located on the magnetic float level gauge and connected to the multiple lifting eye nuts, for tightening and fixing the branch pipe and the sealing cover.

[0008] The sealing of the branch tube is achieved by the sealing boss entering the branch tube, engaging with it, and sealing it. The sealing cap further covers and seals the opening of the branch tube. One end of the tightening strap is connected to the eye nut, passes above the magnetic level gauge, and the other end is connected to another eye nut, tightening and fixing the branch tube and sealing cap to complete the sealing of the branch tube. In the above technical solution, this embodiment uses the sealing boss to block the branch tube and the sealing cap to seal it. Furthermore, the basket structure formed by the eye nut and tightening strap further tightens and fixes the branch tube and sealing cap, completing the sealing of the branch tube.

[0009] Furthermore, according to an embodiment of this application, four connection holes are provided, arranged in a circular array on the sealing cover.

[0010] Furthermore, according to the embodiments of this application, there are two sealing bosses, namely a first sealing boss and a second sealing boss, and the first sealing boss and the second sealing boss are cylindrical bosses.

[0011] Furthermore, according to an embodiment of this application, the first sealing boss is disposed on the second sealing boss, and the diameter of the first sealing boss is smaller than that of the second sealing boss.

[0012] Furthermore, according to an embodiment of this application, the first sealing boss and the second sealing boss are provided with annular grooves on their sides, and multiple annular grooves are provided.

[0013] Furthermore, according to an embodiment of this application, an O-ring is provided in the annular groove of the second sealing boss, and the O-ring is used to seal the branch pipe.

[0014] Furthermore, according to an embodiment of this application, the connecting hole is a threaded hole.

[0015] Furthermore, according to an embodiment of this application, two connecting and fixing parts are provided on a single sealing cover, respectively located on both sides of the magnetic float level gauge.

[0016] Furthermore, according to an embodiment of this application, the connection between the tightening strap and the eye nut is achieved by hooks provided at both ends of the tightening strap, which hook the eye of the eye nut to complete the connection.

[0017] This application also discloses a method for using a sealing fixture, including: Place the sealing cap under the branch tube and insert the sealing protrusion on the sealing cap into the branch tube. Installation 1: Place the lifting eye nut into the connection holes on both sides of the magnetic level gauge. Installation step 2: Screw the fixing screw into the eye nut and tighten it to complete the fixed connection between the eye nut and the sealing cap; For connection and fixation, attach the tightening strap and one end to the lifting eye nut, pass above the magnetic level gauge, and attach the other end of the tightening strap to another lifting eye nut to tighten and fix the branch pipe and sealing cap, thus completing the sealing of the branch pipe.

[0018] Compared with the prior art, this application uses a sealing boss to enter the branch tube, cooperate with the branch tube, and seal it. The sealing cap further covers and seals the opening of the branch tube. One end of the tightening strap is connected to the lifting eye nut, passes above the magnetic level gauge, and the other end of the tightening strap is connected to another lifting eye nut. The tightening strap and the lifting eye nut form a basket structure, which tightens and fixes the branch tube and the sealing cap, completing the sealing of the branch tube. This solves the problem that the branch tube matched with the magnetic level gauge does not have a corresponding sealing structure, and can seal the branch tube matched with the magnetic level gauge. Attached Figure Description

[0019] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of a sealing fixture.

[0021] Figure 2 This is a front sectional view of a sealing fixture.

[0022] Figure 3 This is a left sectional view of a sealing fixture.

[0023] Figure 4 This is a left sectional view of a sealing fixture with an added locking mechanism.

[0024] Figure 5 This is a cross-sectional view of the locking mechanism when it is locked.

[0025] Figure 6 This is a cross-sectional view of the locking mechanism when it is not locked.

[0026] Figure 7 This is a main sectional view of the second sealing boss with an added auxiliary mechanism.

[0027] Figure 8 This is a top sectional view of the second sealing boss with an added auxiliary mechanism.

[0028] 31. Tighten the belt 32. Hook 33. Eye bolt nut 34. Fixing screws 4. Sealing cap 5. Sealing boss 51. First sealing boss 52. Second sealing boss 6. O-rings 7. Locking mechanism 71. Locking claw 72. The First Steel Ball 73. First spring 74. Spindle 75. The second steel ball 76. Support plate 77. The second spring 78. Shell 79. Auxiliary locking part 8. Auxiliary mechanisms 81. Telescopic pole 82. Protective Kit 83. Drive motor Implementation

[0029] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit 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.

[0030] In the description of this invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "a," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] For purposes of simplicity and illustration, the principles of the embodiments are described primarily by way of example. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring these embodiments. Furthermore, all embodiments can be used in combination with each other.

[0033] Example 1: As Figure 1-3 As shown, a sealing fixture includes: Magnetic level gauge 1; branch pipe 2, which is located below the magnetic level gauge 1 and welded to it, and there are multiple branch pipes 2; sealing cover 4, which is located below the branch pipe 2 and connected to it, and has multiple connection holes, which are used to seal the branch pipe 2; sealing boss 5, which is located inside the branch pipe 2 and connected to the sealing cover 4, and there are multiple sealing bosses 5, which are used to cooperate with the branch pipe 2 to seal it. A connecting fixing part 3 is provided in the connecting hole, and multiple connecting fixing parts 3 are provided. The connecting fixing part 3 is used to prevent the sealing cover 4 from loosening. The connecting fixing part 3 includes: fixing screws 34, which are provided in the connecting hole, and multiple fixing screws 34 are provided; lifting eye nuts 33, which are provided on the connecting hole and cooperate with the fixing screws 34, and multiple lifting eye nuts 33 are provided; and tightening strap 31, which is provided on the magnetic float level gauge 1 and connected to multiple lifting eye nuts 33, for tightening and fixing the branch pipe 2 and the sealing cover 4.

[0034] The sealing of branch pipe 2 is completed. The sealing boss 5 enters the branch pipe 2 and cooperates with the branch pipe 2 to seal it. The sealing cover 4 further covers and seals the opening of the branch pipe 2. One end of the fastening strap 31 is connected to the lifting eye nut 33. After passing above the magnetic float level gauge 1, the other end of the fastening strap 31 is connected to another lifting eye nut 33 to tighten and fix the branch pipe 2 and the sealing cover 4, thus completing the sealing of the branch pipe 2.

[0035] There are four connecting holes arranged in a ring on the sealing cover 4. There are two sealing bosses 5, namely the first sealing boss 51 and the second sealing boss 52. The first sealing boss 51 and the second sealing boss 52 are cylindrical bosses. The first sealing boss 51 is set on the second sealing boss 52. The diameter of the first sealing boss 51 is smaller than that of the second sealing boss 52. The sides of the first sealing boss 51 and the second sealing boss 52 are provided with annular grooves. There are multiple annular grooves. An O-ring 6 is set in the annular groove of the second sealing boss 52. The O-ring 6 is used to seal the branch pipe 2.

[0036] The two-stage sealing boss 5 is designed to fit the stepped hole of the branch pipe 2 for precise sealing. The O-ring set in the groove further increases the friction and reduces the gap between the sealing boss 5 and the branch pipe 2, making the sealing of the branch pipe 2 more precise.

[0037] The connection hole is a threaded hole. There are two connection fixing parts 3 on a single sealing cover 4, located on both sides of the magnetic float level gauge 1. The connection between the fastening strap 31 and the lifting eye nut 33 is achieved by hooks 32 provided at both ends of the fastening strap 31, which hook the lifting eye of the lifting eye nut 33 to complete the connection.

[0038] The sealing boss 5 enters the branch pipe 2 and cooperates with the branch pipe 2 to seal it. The sealing cover 4 further covers and seals the opening of the branch pipe 2. One end of the tightening strap 31 is connected to the lifting nut 33. It passes above the magnetic level gauge 1, and the other end of the tightening strap 31 is connected to another lifting nut 33. The tightening strap 31 and the lifting nut 33 form a basket structure to tighten and fix the branch pipe 2 and the sealing cover 4, thus completing the sealing of the branch pipe 2. This solves the problem that the branch pipe 2 matched with the magnetic level gauge 1 does not have a corresponding sealing structure, and can seal the branch pipe 2 matched with the magnetic level gauge 1.

[0039] Example 2: Figure 4-6 As shown, based on Embodiment 1, this embodiment further improves the connecting fixing part 3 by adding a locking mechanism 7: The housing 78 is located above the hook 32 and is connected to the hook 32. An auxiliary locking part 79 is provided at the connection between the housing 78 and the hook 32. The main shaft 74 is located inside the housing 78. The main shaft 74 has an annular groove for placing the first steel ball 72. The main shaft 74 has a channel for tightening the retraction of the belt 31. The first spring 73 is embedded in the upper end of the main shaft 74 and connected to the main shaft 74; The second spring 77 is located on the outer side of the lower end of the main shaft 74 and inside the housing 78; Support plate 76 is disposed outside the main shaft 74, inside the housing 78, and above the second spring 77; The second steel ball 75 is positioned above the support plate 76; Locking claw 71 is located between the second steel ball 75 and the first steel ball 72.

[0040] By using the locking mechanism 7 provided on the connecting fixing part 3, the sealing of the tightening strap on the branch pipe 2 and the sealing cover 4 can be controlled for further precise tightening, resulting in a better sealing effect. When it is necessary to tighten the tightening strap, by pulling down the tightening strap 31 below the auxiliary locking part 79, pressure is applied to the second spring 77 through the support plate 76, causing the first spring 73 to contract, thus releasing the locking claw from controlling the tightening strap 31. After the tightening degree of the tightening strap 31 is controlled, the force generated by the deformation of the first spring 73 and the second spring 77 pushes the locking claw 71 to restore control over the tightening strap. This allows for further precise control of the sealing of the tightening strap on the branch pipe 2 and the sealing cover 4, resulting in a better sealing effect. This further solves the problem that the branch pipe 2 matched with the magnetic float level gauge 1 does not have a corresponding sealing structure, and can better seal the branch pipe 2 matched with the magnetic float level gauge 1.

[0041] Example 3: Figure 7-8 As shown, based on Embodiment 2, this embodiment further improves the second sealing boss 52 by adding an auxiliary mechanism 8: Drive motor 83 is mounted on sealing cover 4; Protective sleeve 82 is disposed on the second sealing boss 52; Telescopic rod 81 is installed inside protective sleeve 82. Telescopic rod 81 is used to extend out of the second sealing boss 52 via drive motor 83 to compress O-ring 6.

[0042] By adding an auxiliary mechanism 8, which is activated after the sealing cover 4 seals the branch pipe 2, the drive motor 83 controls the extension rod 81 in the protective sleeve 82 to extend into the second sealing boss 52, applying pressure to the O-ring 6, further reducing the gap between the second sealing boss 52 and the branch pipe 2, strengthening the sealing degree of the O-ring on the branch pipe 2, and making the sealing effect better. This further solves the problem that the branch pipe 2 matched with the magnetic float level gauge 1 does not have a corresponding sealing structure, and can better seal the branch pipe 2 matched with the magnetic float level gauge 1.

[0043] Example 4: Figure 1-8 As shown, based on Embodiment 3, this embodiment also provides a method for using a sealing fixture, including: Place the sealing cap 4 below the branch tube 2 and insert the sealing protrusion 5 on the sealing cap 4 into the branch tube 2; Installation 1: Place the lifting eye nut 33 into the connecting holes on both sides of the magnetic level gauge 1; Installation 2: Screw the fixing screw 34 into the eye nut 33 and tighten it to complete the fixed connection between the eye nut 33 and the sealing cover 4; Connect and fix the tension strap 31 and one end to the lifting eye nut 33. Passing above the magnetic level gauge 1, connect the other end of the tension strap 31 to another lifting eye nut 33 to tighten and fix the branch tube 2 and the sealing cap 4, thus completing the sealing of the branch tube 2.

[0044] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A sealing fixture, comprising: Magnetic float level gauge; Branch pipes are provided below the magnetic level gauge and welded together with the magnetic level gauge; multiple branch pipes are provided. The feature is that a sealing cap is disposed below the branch tube and connected to the branch tube, and the sealing cap is provided with a plurality of connection holes, and the sealing cap is used to seal the branch tube; A sealing boss is provided inside the branch tube and connected to the sealing cover. Multiple sealing bosses are provided and are used to cooperate with the branch tube to seal the branch tube. A connecting fixing part is disposed within the connecting hole. Multiple connecting fixing parts are provided to prevent the sealing cap from loosening. Each connecting fixing part includes: A fixing screw is provided in the connecting hole, and multiple fixing screws are provided; A lifting eye nut, wherein the lifting eye nut is disposed on the connecting hole and cooperates with the fixing screw, and multiple lifting eye nuts are provided; A tightening strap is provided on the magnetic level gauge and connected to multiple lifting eye nuts for tightening and fixing the branch pipe and the sealing cap; The sealing of the branch tube is achieved by the sealing boss entering the branch tube, cooperating with the branch tube, and sealing it. The sealing cap further covers and seals the opening of the branch tube. One end of the tightening strap is connected to the lifting eye nut, passes above the magnetic level gauge, and the other end of the tightening strap is connected to another lifting eye nut to tighten and fix the branch tube and the sealing cap, thus completing the sealing of the branch tube.

2. The sealing fixture according to claim 1, characterized in that, The connection holes are provided in a circular array on the sealing cover.

3. A sealing fixture according to claim 1, characterized in that, The sealing boss is provided in two forms, namely a first sealing boss and a second sealing boss, both of which are cylindrical bosses.

4. A sealing fixture according to claim 3, characterized in that, The first sealing boss is disposed on the second sealing boss, and the diameter of the first sealing boss is smaller than that of the second sealing boss.

5. A sealing fixture according to claim 3, characterized in that, The first sealing boss and the second sealing boss are provided with annular grooves on their sides, and there are multiple annular grooves.

6. A sealing fixture according to claim 5, characterized in that, An O-ring is provided in the annular groove of the second sealing boss, and the O-ring is used to seal the branch pipe.

7. A sealing fixture according to claim 1, characterized in that, The connecting hole is a threaded hole.

8. A sealing fixture according to claim 1, characterized in that, Two of the connecting and fixing parts are provided on a single sealing cover, respectively located on both sides of the magnetic level gauge.

9. A sealing fixture according to claim 1, characterized in that, The connection between the fastening strap and the eye nut is achieved by hooks provided at both ends of the fastening strap, which hook onto the eye of the eye nut to complete the connection.

10. A method of using a sealing tool, characterized in that, A sealing fixture is applied to any one of claims 1-9, and the method of using the sealing fixture includes: Place the sealing cap below the branch tube and insert the sealing protrusion on the sealing cap into the branch tube; Installation 1: Place the lifting eye nut into the connecting holes on both sides of the magnetic level gauge; Installation 2: Screw the fixing screw into the eye nut and tighten it to complete the fixed connection between the eye nut and the sealing cap; The connection is fixed by attaching one end of the tightening strap to the lifting eye nut, passing above the magnetic level gauge, and then attaching the other end of the tightening strap to another lifting eye nut, thus tightening and fixing the branch pipe and the sealing cap to complete the sealing of the branch pipe.

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