CN212203104U - Sealing device for hydraulic test of rubber expansion joint - Google Patents
Sealing device for hydraulic test of rubber expansion joint Download PDFInfo
- Publication number
- CN212203104U CN212203104U CN202020414580.XU CN202020414580U CN212203104U CN 212203104 U CN212203104 U CN 212203104U CN 202020414580 U CN202020414580 U CN 202020414580U CN 212203104 U CN212203104 U CN 212203104U
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- test
- sealing
- plugging plate
- expansion joint
- sealing ring
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Abstract
The utility model discloses a hydraulic test sealing device for a rubber expansion joint, which is characterized in that a plurality of test plugging plate bolt holes are arranged on a test plugging plate, and the test plugging plate bolt holes are arranged on the same circumference; an annular rectangular groove is formed in the end face of one side of the test plugging plate, a sealing ring is arranged in the groove, the bottom of the sealing ring is arranged to be annular and matched with the groove, and the top of the sealing ring is arranged to be annular and continuous in tooth shape; the bottom plane of the sealing ring is fixedly connected with the groove of the test plugging plate through a sealing adhesive; the sealing plane of the sealing ring is 3-15 mm higher than the plane of one side of the groove of the test plugging plate. The test device has the advantages of simple structure, convenient processing, convenient assembly and disassembly, high test reliability and cost saving; the rubber expansion joint effectively avoids destructive influence on the rubber resilience performance and the compression permanent deformation performance of the rubber sealing surface in the test process, reduces the difficulty of on-site installation and debugging of the rubber expansion joint, and prolongs the service life of the rubber expansion joint.
Description
Technical Field
The utility model relates to a field of expansion joint especially relates to a rubber expansion joint hydraulic test sealing device.
Background
The rubber expansion joint is used as an elastic nonmetal compensation connecting element, and a hydraulic strength test with 1.5 times of design pressure is required to be carried out when the rubber expansion joint leaves a factory so as to carry out quality inspection and verification on the compressive strength of the rubber expansion joint; the general test method is that the conventional full-plane test plug plate is directly fastened and connected with a flange screw hole of the test rubber expansion joint by bolts, the balance and fastening torque of the bolt fastening force are highly required due to different processing precision and different requirements on a rubber sealing surface of the test plug plate in the assembling process, the test cannot be carried out due to the occurrence of sealing leakage caused by processing precision errors or unbalanced bolt fastening in the test process, a large amount of manpower, expensive mechanical equipment and tools (a bolt fastening torque wrench and the like) are needed, a large amount of time is consumed, especially, the hydraulic test of a high-pressure rubber expansion joint test environment (such as more than 1.6 MPa) or a large-caliber rubber expansion joint (such as more than 1800 mm) is more serious, and the rubber resilience performance and the compression permanent deformation performance of a rubber sealing surface can be destructively influenced by applying excessive fastening torque in the test process, the field installation and debugging of the rubber expansion joint are more difficult, and the service life of the rubber expansion joint is shortened.
Disclosure of Invention
The utility model aims at providing a rubber expansion joint hydraulic test sealing device, simple structure has solved above technical problem.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: a sealing device for a hydraulic test of a rubber expansion joint is matched and connected with bolt holes on sealing surfaces at the left end and the right end of an expansion joint body through connecting bolts; the method is characterized in that: the test plugging plate is provided with a plurality of test plugging plate bolt holes which are arranged on the same circumference; an annular rectangular groove is formed in the end face of one side of the test plugging plate, a sealing ring is arranged in the groove, the bottom of the sealing ring is arranged to be annular and matched with the groove, and the top of the sealing ring is arranged to be annular and continuous in tooth shape; the bottom plane of the sealing ring is fixedly connected with the groove of the test plugging plate through a sealing adhesive; the sealing plane of the sealing ring is 3-15 mm higher than the plane of one side of the groove of the test plugging plate.
Preferably: the sealing ring is made of rubber, and the rubber hardness of the sealing ring is lower than that of a sealing plane of the rubber expansion joint body.
Preferably: the sealing ring is arranged on the inner side of the test plugging plate bolt hole.
Preferably: the sealing ring is square or round.
Preferably: the test plugging plate bolt holes are uniformly distributed on the test plugging plate.
The utility model has the advantages that; the utility model provides a rubber expansion joint hydraulic test sealing device, compares with traditional structure: the test plug plate and the rubber expansion joint bolt can be fastened and connected at intervals of 1-2 screw holes, the fastening torque of the bolt can be only 60-80% of the original fastening torque to achieve one-time successful installation test, and the installation tool only needs the most common mechanical torque wrench or a self-made torque wrench, so that a large amount of manpower, material resources and financial resources are saved; in the test process, sealing can be realized only by compressing and extruding the rubber sealing ring, and the rubber sealing surface of the rubber expansion joint body is not deformed or damaged, so that the field installation and debugging of the rubber expansion joint body are simpler and more reliable; the utility model has simple structure, convenient processing, low processing precision requirement, convenient installation and disassembly, simple and convenient test, high reliability and cost saving; the rubber expansion joint effectively avoids destructive influence on the rubber resilience performance and the compression permanent deformation performance of the rubber sealing surface in the test process, reduces the difficulty of on-site installation and debugging of the rubber expansion joint, and prolongs the service life of the rubber expansion joint.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a left side view of the present invention;
FIG. 3 is a schematic view of the assembly of the present invention with an expansion joint body;
in the figure: 1. testing the plugging plate; 2. testing the bolt holes of the blocking plate; 3. a rectangular groove; 4. a seal ring; 4-1, the peripheral surface of the sealing ring; 4-2, sealing the sealing plane by a sealing ring; 4-3, sealing ring bottom plane; 5. an expansion joint body.
Detailed Description
In order to make the object, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments;
in the drawings: a sealing device for a hydraulic test of a rubber expansion joint is matched and connected with bolt holes on sealing surfaces at the left end and the right end of an expansion joint body 5 through connecting bolts; the method is characterized in that: the test plugging plate device comprises a test plugging plate 1, wherein a plurality of test plugging plate bolt holes 2 are formed in the test plugging plate 1, and the test plugging plate bolt holes 2 are arranged on the same circumference; an annular rectangular groove 3 is formed in the end face of one side of the test plugging plate 1, and a sealing ring 4 is arranged in the groove 3; the bottom of the sealing ring 4 is arranged to be annular matched with the groove 3, and the top of the sealing ring 4 is arranged to be annular continuous tooth form; the bottom plane of the sealing ring 4 is fixedly connected with the groove 3 of the test plugging plate through a sealing adhesive; the sealing plane of the sealing ring 4 is 3-15 mm higher than the plane of one side of the groove of the test plugging plate. The sealing ring 4 is made of rubber, and the rubber hardness of the sealing ring 4 is lower than that of a sealing plane of the rubber expansion joint body 5; the sealing ring 4 is arranged on the inner side of the test plugging plate bolt hole 2; the sealing ring 4 is square or round; the test plugging plate bolt holes 2 are uniformly distributed on the test plugging plate 1.
The utility model discloses a concrete implementation: the test plugging plate is processed by cutting and drilling through the test plugging plate bolt hole on the test plugging plate, so that the test plugging plate is matched with the rubber expansion joint flange bolt hole; processing a sealing groove on the test plug plate by using a common turning processing mode to ensure that the sealing groove is matched with the specification and the size of the rubber expansion joint; adopting a flat vulcanization or extrusion molding mode to manufacture another independent rubber sealing ring with teeth, wherein the sealing ring is arranged in an annular, square or other special-shaped shape; the processing is convenient, and the processing precision requirement is low; time and labor are saved, and the cost is reduced; when the sealing ring is installed, the bottom plane 4-3 of the sealing ring is tightly bonded with the plane of the sealing groove 3 by using sealing bonding glue; and ensuring that the sealing plane 4-2 of the sealing ring is 3-15 mm higher than the plane of the test plugging plate. When the test plugging plate is installed, the outer peripheral surface 4-1 of the rubber sealing ring is inserted along the inner peripheral surface of the caliber of the rubber expansion joint body 5, and the test plugging plate bolt hole 2 on the test plugging plate 1 is connected and fastened with the rubber expansion joint bolt hole by using a connecting bolt.
The sealing realizes the working principle: the rubber hardness of the rubber sealing ring with the tooth shape is 3-5 (shore A) lower than that of a sealing plane of the rubber expansion joint; when the connecting bolt is fastened, because the rubber hardness of the rubber sealing ring is lower than that of the rubber of the sealing plane of the rubber expansion joint, the sealing plane of the rubber sealing ring is firstly extruded to compress the sealing surface during compression, and the outer peripheral surface of the connecting sealing ring is tightly attached to the inner periphery of the rubber expansion joint to generate an auxiliary sealing effect during plane extrusion; due to the sealing effect generated by strong friction force between rubber and rubber, the applied bolt fastening torque can realize sealing only by directly contacting 60-80% of the common test plug plate metal and the rubber sealing surface of the rubber expansion joint; meanwhile, the balance degree of the fastening torque of each connecting bolt is also greatly reduced, and a large amount of manpower, material resources and financial resources are saved; because the rubber hardness of the rubber sealing ring is lower than that of the rubber of the sealing plane of the rubber expansion joint, the rubber sealing ring is only extruded and deformed in the pressure test process, and the sealing plane of the rubber expansion joint is protected from compression deformation or extrusion deformation.
The utility model has simple structure, good stability, safety and reliability; the processing is convenient, and the time and the labor are saved; the installation is convenient and fast, the one-time success rate of the installation during the test reaches 100 percent, and the test is particularly suitable for a high-voltage test or a large-caliber test; the test is simple and convenient, the reliability is high, and the cost is saved. The rubber expansion joint effectively avoids destructive influence on the rubber resilience performance and the compression permanent deformation performance of the rubber sealing surface in the test process, reduces the difficulty of on-site installation and debugging of the rubber expansion joint, and prolongs the service life of the rubber expansion joint.
The foregoing examples are given for the purpose of illustrating the present invention in a clear and non-restrictive manner, and it will be apparent to those skilled in the art that variations and modifications of the present invention may be made in other variations and modifications based on the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments, and all such variations and modifications as are obvious and desirable in the art are within the scope of the present invention.
Claims (5)
1. A sealing device for a hydraulic test of a rubber expansion joint is matched and connected with bolt holes on sealing surfaces at the left end and the right end of an expansion joint body (5) through connecting bolts; the method is characterized in that: the test plugging plate comprises a test plugging plate (1), wherein a plurality of test plugging plate bolt holes (2) are formed in the test plugging plate (1), and the test plugging plate bolt holes (2) are formed in the same circumference; an annular rectangular groove (3) is formed in the end face of one side of the test plugging plate (1), and a sealing ring (4) is arranged in the groove (3); the bottom of the sealing ring (4) is arranged to be annular matched with the groove (3), and the top of the sealing ring (4) is arranged to be annular continuous tooth form; the bottom plane of the sealing ring (4) is fixedly connected with the groove (3) of the test plugging plate through a sealing adhesive; the sealing plane of the sealing ring (4) is 3-15 mm higher than the plane of one side of the groove of the test plugging plate.
2. The hydraulic test sealing device for the rubber expansion joint as claimed in claim 1, wherein: the sealing ring (4) is made of rubber, and the rubber hardness of the sealing ring (4) is lower than that of a sealing plane of the rubber expansion joint body (5).
3. The hydraulic test sealing device for the rubber expansion joint as claimed in claim 1, wherein: and the sealing ring (4) is arranged on the inner side of the test plugging plate bolt hole (2).
4. The hydraulic test sealing device for the rubber expansion joint as claimed in claim 1, wherein: the sealing ring (4) is square or round.
5. The hydraulic test sealing device for the rubber expansion joint as claimed in claim 1, wherein: the test plugging plate bolt holes (2) are uniformly distributed on the test plugging plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020414580.XU CN212203104U (en) | 2020-03-27 | 2020-03-27 | Sealing device for hydraulic test of rubber expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020414580.XU CN212203104U (en) | 2020-03-27 | 2020-03-27 | Sealing device for hydraulic test of rubber expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212203104U true CN212203104U (en) | 2020-12-22 |
Family
ID=73824279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020414580.XU Expired - Fee Related CN212203104U (en) | 2020-03-27 | 2020-03-27 | Sealing device for hydraulic test of rubber expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212203104U (en) |
-
2020
- 2020-03-27 CN CN202020414580.XU patent/CN212203104U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201222 |
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| CF01 | Termination of patent right due to non-payment of annual fee |