A well-sealed alkaline live-line testing device

Abstract

This utility model relates to the field of testing technology and discloses an alkaline pressure testing device with good sealing performance. It includes a first pipe, a second pipe installed on the right side of the first pipe, and a sealing gasket installed between the first and second pipes. The sealing gasket has mounting holes corresponding to the bolt mounting holes on the first and second pipes. An auxiliary mechanism is installed on the first pipe, including six positioning rods and six fixing rods. The positioning rods and positioning grooves work together to quickly position the sealing gasket, improving assembly efficiency. Two first connecting plates are tightened together by a round rod and a fastening plate to fix the position of the sealing gasket, preventing it from shifting due to vibration during assembly. This ensures the gasket always covers the joint gap between the two pipes, thereby improving the sealing effect of the testing device and enhancing its sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, specifically to an alkaline pressure testing device with good sealing performance. Background Technology

[0002] Alkali pressure testing equipment is a specialized instrument used to test the alkali resistance, pressure resistance, and related properties of materials or substances under pressure. It is widely used in textiles, petroleum, materials and other fields. Common types include hydrostatic acid pressure testers, which test the pressure limit of fabrics to resist alkali liquid penetration by continuously increasing pressure; automatic alkalinity testers, which measure the alkaline components of petroleum products using automatic potentiometric titration according to ASTM standards; and liquid hydrostatic pressure testers, which use corrosion-resistant materials and are specifically designed for testing the pressure penetration performance of acid and alkali substances, meet national standards, and ensure testing accuracy and equipment durability.

[0003] Currently, when using alkaline live pressure testing equipment, the connections of its internal piping system need to be sealed. For example, when connecting pipes through flanges, a gasket needs to be placed between the two flanges to achieve a seal. During the installation of the gasket, collisions or vibrations at the pipe mating surfaces, or operational deviations when manually placing the gasket, may cause the gasket to deviate from the preset sealing position. This can easily cause the gasket to partially detach from the pipe sealing surface, forming a gap. When the medium is introduced into the pipe, the medium will leak from the gap, affecting the sealing performance of the equipment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an alkaline pressure testing device with good sealing performance. It solves the problem that during the installation of sealing gaskets, collisions or vibrations at the pipe mating surfaces, or operational deviations during manual gasket placement, can cause the gaskets to deviate from their preset sealing positions. This can easily lead to partial detachment of the gasket from the pipe sealing surface, forming gaps. When the medium is introduced into the pipe, the medium will leak from the gaps, affecting the sealing performance of the device.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: an alkaline pressure testing device with good sealing performance, comprising a first pipe, a second pipe installed on the right side of the first pipe, a sealing gasket installed between the first pipe and the second pipe, and mounting holes provided on the sealing gasket corresponding to the bolt mounting holes on the first pipe and the second pipe;

[0008] An auxiliary mechanism is installed on the first pipe. The auxiliary mechanism includes six positioning rods and six fixing rods. The right surface of the first pipe has six positioning grooves arranged in a circular array. The six positioning rods are slidably inserted into the six positioning grooves. All six positioning rods are fixedly connected to the sealing gaskets. Each of the six positioning grooves has a connecting hole on its inner wall. The far ends of the six connecting holes extend to the outer surface of the first pipe. The six fixing rods are slidably inserted into the six connecting holes. The upper ends of the three upper fixing rods are fixedly connected to the first connecting plates, and the lower ends of the three lower fixing rods are fixedly connected to the same first connecting plates.

[0009] Preferably, a second connecting plate is fixedly connected to the front and rear surfaces of the two first connecting plates. The upper surfaces of the two lower second connecting plates are provided with through holes, and round rods are rotatably installed on the lower surfaces of the two upper second connecting plates. The two round rods are respectively inserted into the corresponding through holes.

[0010] Preferably, the two round rods have rotating holes inside.

[0011] Preferably, a fastening plate is rotatably mounted inside the rotating hole.

[0012] Preferably, the interior of each of the two second connecting plates on the upper side is provided with a convex circular groove, and a convex circular rod is rotatably installed inside each of the two convex circular grooves. The two convex circular rods are respectively fixedly connected to the corresponding circular rods.

[0013] Preferably, the through hole is a combination of a circular hole and a rectangular hole.

[0014] Preferably, the first connecting plate can be an arc-shaped plate.

[0015] Preferably, the first connecting plate can also be an arc-shaped plate with a magnetic plate installed on its inner arc surface.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides an alkaline pressure testing device with good sealing performance, which has the following beneficial effects:

[0018] 1. This alkaline pressure testing equipment with good sealing performance can quickly position the sealing gasket through the cooperation of the positioning rod and the positioning groove, improving assembly efficiency. The two first connecting plates are tightened by the cooperation of the round rod and the fastening plate to fix the position of the sealing gasket, preventing the sealing gasket from shifting due to vibration during assembly, and ensuring that the gasket always covers the joint gap between the two pipes, thereby improving the installation effect of the sealing components of the testing equipment and improving the sealing performance of the testing equipment. Attached Figure Description

[0019] Figure 1This is a top view of the overall structure of the alkaline pressure testing device with good sealing performance according to this utility model;

[0020] Figure 2 This is a front view of the internal cross-section structure of the alkaline pressure testing device with good sealing performance according to this utility model;

[0021] Figure 3 This is a schematic diagram of the internal cross-sectional side view of the second connecting plate of this utility model;

[0022] Figure 4 This is a cross-sectional view of the first connecting plate in Embodiment 2 of this utility model.

[0023] In the diagram: 1. First pipe; 2. Second pipe; 3. Sealing gasket; 4. Mounting hole; 5. Positioning rod; 6. Fixing rod; 7. Positioning groove; 8. Connecting hole; 9. First connecting plate; 10. Second connecting plate; 11. Through hole; 12. Round rod; 13. Rotating hole; 14. Fastening plate; 15. Convex round groove; 16. Convex round rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a new technical solution:

[0026] The first pipe 1 serves as the basic section of the equipment piping system. Its right end face needs to be connected to the second pipe 2. Six positioning grooves 7 in a ring array are opened on its right surface, and connecting holes 8 extending to the outer wall are opened on the outer surface corresponding to the positioning grooves 7.

[0027] The second pipe 2 is installed on the right side of the first pipe 1. The mating surface with the first pipe 1 needs to be fitted with a sealing gasket 3. The surface of the second pipe 2 has bolt mounting holes aligned with the first pipe 1. Its function is to cooperate with the first pipe 1 to form a complete pipeline.

[0028] The sealing gasket 3 is installed between the mating surfaces of the first pipe 1 and the second pipe 2. It is made of alkali-resistant material and has mounting holes 4 on its surface corresponding to the bolt mounting holes of the two pipes. Six positioning rods 5 are fixedly connected on the left side. Its core function is to fill the gap between the two pipes, block the leakage of alkaline media, and ensure sealing performance.

[0029] Mounting holes 4 are provided on the sealing gasket 3, and their positions correspond one-to-one with the bolt mounting holes of the first pipe 1 and the second pipe 2. Their function is to allow bolts to pass through, and the bolt tightening force is used to press the two pipes and the sealing gasket 3 tightly together to achieve a mechanical seal.

[0030] There are six positioning rods 5 in total, all of which are fixedly connected to the left side of the sealing gasket 3 and are arranged in a ring array. They are slidably inserted into the six positioning grooves 7 on the right surface of the first pipe 1. Their function is to accurately position the sealing gasket 3 and prevent the gasket from shifting during assembly or when the bolts are tightened.

[0031] There are six fixing rods 6 in total, which are slidably inserted into the six connecting holes 8 of the first pipe 1. The inner end of the rods is in contact with the positioning rod 5. The upper ends of the three upper fixing rods 6 are connected to the first connecting plate 9, and the lower ends of the three lower fixing rods 6 are connected to the first connecting plate 9. Their function is to use external force to drive the positioning rod 5 to be squeezed inward, so that the sealing gasket 3 is tightly attached to the pipe mating surface.

[0032] The positioning groove 7 is formed on the right surface of the first pipe 1, and is distributed in a ring array. It corresponds one-to-one with the positioning rod 5, allowing the positioning rod 5 to slide and insert. Its function is to provide installation guidance and limit for the positioning rod 5, and to ensure the accurate installation position of the sealing gasket 3.

[0033] The connecting hole 8 is opened on the inner wall of the positioning groove 7, and its outer end extends to the outer surface of the first pipe 1. It corresponds one-to-one with the fixing rod 6, allowing the fixing rod 6 to slide and insert. Its function is to provide a movement channel for the fixing rod 6 and realize the squeezing effect of the fixing rod on the positioning rod 5.

[0034] There are two first connecting plates 9, which connect the three upper fixing rods 6 and the three lower fixing rods 6 respectively. Their function is to link the fixing rods 6 in the same group so as to achieve synchronous installation and removal.

[0035] There are four second connecting plates 10 in total. Two are fixedly connected to the front and rear surfaces of the upper first connecting plate 9, and two are fixedly connected to the front and rear surfaces of the lower first connecting plate 9. A round rod 12 is installed on the lower surface of the upper second connecting plate 10, and a through hole 11 is opened on the upper surface of the lower second connecting plate 10. The function is to build a connecting bridge between the upper and lower first connecting plates 9 to achieve fastening and fixing.

[0036] The through hole 11 is formed on the upper surface of the lower second connecting plate 10. It is a combination structure of circular and rectangular holes, which allows the round rod 12 of the upper second connecting plate 10 to be inserted. Its function is to realize the insertion and rotation locking of the round rod 12 through the special shape, and to provide a locking function for the auxiliary mechanism.

[0037] There are two round rods 12. The upper end is rotatably mounted on the lower surface of the upper second connecting plate 10 via a convex round rod 16. The lower end can be inserted into the through hole 11. The inside is provided with a rotating hole 13, which serves as a connecting shaft for the upper and lower second connecting plates 10. The auxiliary mechanism is engaged by cooperating with the through hole 11.

[0038] The rotating hole 13 is opened inside the round rod 12 to allow the fastening plate 14 to be rotated and installed. Its function is to provide rotation space for the fastening plate 14 and realize the fastening plate pressing and locking the lower second connecting plate 10.

[0039] The fastening plate 14 is rotatably installed in the rotating hole 13. Its function is to rotate and fit against the lower surface of the lower second connecting plate 10, thereby enhancing the connection tightness between the round rod 12 and the through hole 11 by lever principle, and ensuring the locking stability of the auxiliary mechanism.

[0040] A convex circular groove 15 is formed inside the upper second connecting plate 10 and is adapted to the convex circular rod 16. It allows the convex circular rod 16 to be rotatably installed and provides rotational support and limit for the circular rod 12 to prevent the circular rod 12 from falling off during rotation.

[0041] The convex circular rod 16 is rotatably installed in the convex circular groove 15, and its lower end is fixedly connected to the circular rod 12. Its function is to connect the circular rod 12 to the upper second connecting plate 10, so as to realize the flexible rotation of the circular rod 12.

[0042] Furthermore, the sealing gasket 3 is attached to the mating surfaces of the first pipe 1 and the second pipe 2, aligning the mounting holes 4 on the gasket with the bolt mounting holes of the two pipes. At this time, the six positioning rods 5 on the sealing gasket 3 are respectively inserted into the six positioning grooves 7 on the right surface of the first pipe 1, completing the initial positioning of the gasket and preventing the gasket from shifting during assembly. The six fixing rods 6 pass through the connecting holes 8 of the first pipe 1, with their inner ends abutting against the positioning rods 5. The two first connecting plates 9 are attached to the outer surface of the first pipe 1, forming two sets of symmetrical fixing structures. The round rod 12 is inserted into the through hole 11 of the lower second connecting plate 10. Subsequently, the round rod 12 and the round rod 12 are rotated. The lower clamping plate 14 is brought into contact with the lower surface of the second connecting plate 10, which drives the fixing rod 6 to tighten inward, forcing the fixing rod 6 to press against the positioning rod 5 connected to the sealing gasket 3, thus fixing the sealing gasket and achieving pre-sealing of the mating surface of the first pipe 1 and the second pipe 2. After the pre-sealing is completed, the second pipe 2 is aligned with the installation position, and the two pipes are fixed by passing bolts through the installation hole 4. The pre-tightening force of the auxiliary mechanism can reduce the displacement of the sealing gasket when the bolts are tightened, ensuring the sealing effect. After installation, the clamping plate 14 is loosened, the round rod 12 is rotated, and the first connecting plate 9 is removed, so that the six fixing rods 6 leave the inside of the corresponding connecting hole 8.

[0043] The positioning rod 5 and the positioning groove 7 can quickly position the sealing gasket, improving assembly efficiency. The two first connecting plates 9 are tightened by the round rod 12 and the fastening plate 14 to fix the position of the sealing gasket 3, preventing the sealing gasket 3 from shifting due to vibration during assembly, and ensuring that the gasket always covers the joint gap between the two pipes, thereby improving the installation effect of the sealing component of the test equipment and improving the sealing performance of the test equipment.

[0044] Example 1 (for reference) Figure 2 )

[0045] When the first connecting plate 9 is an arc-shaped plate, the fit between the arc-shaped plate and the outer wall of the pipe can disperse the force of the fixing rod 6, avoid excessive local stress that could cause pipe deformation, and prevent the operator from slipping when holding and applying force. Especially in the emergency pre-tightening operation before pressure testing, it can quickly complete the sealing preparation and improve assembly efficiency.

[0046] Example 2 (for reference) Figure 4 )

[0047] When the first connecting plate 9 is an arc-shaped plate with an inner arc surface for mounting a magnetic plate, the magnetic adsorption force solves the problem of positioning the connecting plate in a narrow space, making the force applied by the fixing rod 6 more stable, facilitating the installation of the first connecting plate 9 and the fixing rod 6, and improving assembly efficiency.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A well-sealed alkaline pressure testing device, comprising a first pipe (1), and a second pipe (2) installed on the right side of the first pipe (1), characterized in that: A sealing gasket (3) is installed between the first pipe (1) and the second pipe (2), and an installation hole (4) is provided on the sealing gasket (3) at the bolt mounting hole on the first pipe (1) and the second pipe (2); The auxiliary mechanism is set on the first pipe (1). The auxiliary mechanism includes six positioning rods (5) and six fixing rods (6). The right surface of the first pipe (1) is provided with six positioning grooves (7) in a ring array. The six positioning rods (5) are slidably inserted into the six positioning grooves (7). The six positioning rods (5) are fixedly connected to the sealing gaskets (3). The inner walls of the six positioning grooves (7) are provided with connecting holes (8). The far ends of the six connecting holes (8) extend to the outer surface of the first pipe (1). The six fixing rods (6) are slidably inserted into the six connecting holes (8). The upper ends of the three fixing rods (6) on the upper side are fixedly connected to the first connecting plate (9). The lower ends of the three fixing rods (6) on the lower side are fixedly connected to the same first connecting plate (9).

2. The alkaline live-line testing device with good sealing performance according to claim 1, characterized in that: The front and rear surfaces of the two first connecting plates (9) are fixedly connected with second connecting plates (10). The upper surfaces of the two lower second connecting plates (10) are provided with through holes (11), and the lower surfaces of the two upper second connecting plates (10) are rotatably mounted with round rods (12). The two round rods (12) are respectively inserted into the corresponding through holes (11).

3. The alkaline live-line testing device with good sealing performance according to claim 2, characterized in that: The two round rods (12) have rotating holes (13) inside.

4. The alkaline live-line testing device with good sealing performance according to claim 3, characterized in that: A fastening plate (14) is rotatably installed inside the rotating hole (13).

5. The alkaline live-line testing device with good sealing performance according to claim 2, characterized in that: The upper two second connecting plates (10) are provided with convex circular grooves (15), and convex circular rods (16) are rotatably installed inside the two convex circular grooves (15). The two convex circular rods (16) are fixedly connected to the corresponding circular rods (12).

6. The alkaline live-line testing device with good sealing performance according to claim 2, characterized in that: The through hole (11) is a combination of a circular hole and a rectangular hole.

7. The alkaline live-line testing device with good sealing performance according to claim 1, characterized in that: The first connecting plate (9) can be an arc-shaped plate.

8. The alkaline live-line testing device with good sealing performance according to claim 1, characterized in that: The first connecting plate (9) can also be an arc plate with a magnetic plate installed on the inner arc surface.

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