Hydraulic pressure and airtight multi-compatible clamp

By designing water pressure and airtight multi-compatible fixtures, using a universal base and gland structure, combining studs and lock nuts, the problem of low adaptability of check valve fixtures is solved, and the compatibility test of multi-specified check valves is achieved, which improves test efficiency and safety and reduces costs.

CN223251464UActive Publication Date: 2025-08-22SHENYANG YUANDA COMPRESSOR
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Patent Information

Application Number
CN202422624662.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-29
Publication Date
2025-08-22
Estimated Expiration
2034-10-29

AI Technical Summary

Technical Problem

In the manufacturing of existing valves, the check valve has low adaptability, resulting in long replacement time, increased safety risks and high cost, making it difficult to adapt to various types of check valve products.

Method used

A water pressure and airtight multi-compatible fixture is designed, using a universal base and a universal gland. Through the combination of studs and lock nuts, compatibility with check valves of different specifications is achieved. It is also equipped with a plug cover and a bottom plug for water pressure test and airtight test, and an O-ring sealing ring is used to improve sealing performance.

Benefits of technology

Improve the compatibility and adaptability of fixtures, reduce the types of fixtures, improve test efficiency and safety, reduce costs, and ensure test accuracy and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a water pressure airtight multi-compatible clamp, including universal base and universal gland, universal base both sides are provided with a plurality of screw holes, the screw holes on both sides are screwed with a pair of studs, the both sides of universal gland are provided with through holes corresponding to the screw holes one by one, the pair of studs are arranged in the through holes in a penetrating manner, and the universal gland is provided with a plurality of through holes corresponding to the screw holes one by one. The utility model relates to the technical field of valve detection, through the design of the universal base and the universal gland, the compatibility of check valve components with different specifications is realized, the compatibility of the check valve components with different specifications is realized, the detection accuracy is improved, the detection efficiency is improved, and the detection cost is reduced. Due to the fact that the sizes of the inner holes of the check valve component are consistent and only the appearance size changes, the check valve component can adapt to products with different heights and outer diameters by adjusting the length of the stud and the diameter range of the gland, the types and the number of clamps are greatly reduced, and the compatibility and the adaptability of equipment are improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of valve detection, in particular to a water pressure and air tight multi-compatible clamp. Background Art

[0002] In the valve manufacturing industry, check valves are a key fluid control component used to prevent the backflow of media in pipelines. To ensure the quality and performance of check valves, they must be subjected to rigorous water pressure and air tightness tests. However, in the actual production process, faced with a wide variety of check valve products (according to statistics, there are more than one hundred types), the changes in their external dimensions pose a great challenge to testing. Traditional test fixtures are usually designed for specific product models, which means that the corresponding fixture needs to be replaced every time a different check valve is tested. In this case, workers often need to spend a lot of time looking for suitable fixtures, which not only wastes valuable time and reduces production efficiency, but also increases the safety hazards caused by too many fixtures, such as the increased risk of falling injuries.

[0003] Furthermore, the design and manufacture of each fixture adds significant costs to the company. With changing market demands and technological advancements, the pace of product upgrades is accelerating, and older fixtures quickly become obsolete, further exacerbating the cost issue. Therefore, designing a test fixture that can accommodate a wide range of check valve models has become a critical issue that needs to be addressed.

[0004] In order to solve the above problems, the present invention proposes a water pressure and airtight multi-compatible clamp. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a water pressure airtight multi-compatible clamp, which solves the problem of low adaptability of the prior clamp.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a water pressure airtight multi-compatible clamp, including a universal base and a universal pressure cover, a number of screw holes are provided on both sides of the universal base, a pair of studs are screwed into the screw holes on both sides, through holes corresponding to the screw holes are opened on both sides of the universal pressure cover, a pair of studs are passed through the through holes, a locking nut is screwed on the upper end of the stud, a plug cover is detachably installed under the universal pressure cover, and a bottom plug is detachably installed above the universal base.

[0007] Preferably, the plugging cover is provided with a water pressure test vent and a pressure gauge interface respectively.

[0008] Preferably, an inlet is provided on one side of the bottom plug, and the inlet is a water source inlet or a gas source inlet.

[0009] Preferably, O-rings are provided on the connecting surfaces of the plug cover and the bottom plug.

[0010] Preferably, the number of the screw holes is 6.

[0011] Beneficial effects

[0012] The utility model provides a hydraulic and airtight multi-compatible clamp, which has the following beneficial effects:

[0013] The design of a universal base and universal gland achieves compatibility with check valve components of different specifications. Since the inner hole size of the check valve components is consistent and only the outer dimensions vary, products of different heights and outer diameters can be accommodated by adjusting the length of the stud and the diameter range of the gland. This greatly reduces the types and number of fixtures and improves the compatibility and adaptability of the equipment.

[0014] The stud is inserted into the through hole and fixed with a lock nut, allowing users to flexibly adjust the length of the stud as needed to accommodate check valve components of different heights. The plug cover is equipped with a water pressure test vent and a pressure gauge interface, allowing users to monitor the pressure value in real time during the test, ensuring the accuracy and safety of the test. An inlet is provided on one side of the bottom plug, which serves as a water source inlet or an air source inlet, ensuring that the test medium can be smoothly introduced, improving the reliability and efficiency of the test.

[0015] The connection surfaces of the plug cover and the bottom plug are both equipped with O-rings, which enhances the sealing performance of the fixture and reduces the possibility of leakage during the test.

[0016] In summary, the hydraulic and airtight multi-compatible fixture provided by this utility model offers the advantages of compatibility with multiple product specifications, flexible adjustment, and convenient operation. It is suitable for hydraulic and airtight testing of various check valve components, effectively improving test efficiency and safety while reducing manufacturing costs. Furthermore, this design provides a new solution for other non-standard structures requiring hydraulic and airtight testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 This is a schematic diagram of the use of the utility model when the workpiece is at its minimum size.

[0019] Figure 3 This is a schematic diagram of the utility model when the workpiece is at its maximum size.

[0020] In the figure: 1. Universal base; 2. Universal pressure cover; 3. Screw hole; 4. Stud; 5. Lock nut; 6. Plug cover; 7. Bottom plug; 8. Water pressure test vent; 9. Pressure gauge interface; 10. Inlet; 11. O-ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-3 The utility model provides a technical solution: a water pressure and airtight multi-compatible clamp, including a universal base 1 and a universal pressure cover 2, a plurality of screw holes 3 are provided on both sides of the universal base 1, and a pair of studs 4 are screwed into the screw holes 3 on both sides, through holes corresponding to the screw holes 3 are opened on both sides of the universal pressure cover 2, a pair of studs 4 are passed through the through holes, and a locking nut 5 is screwed on the upper end of the stud 4, a plug cover 6 is detachably installed under the universal pressure cover 2, and a bottom plug 7 is detachably installed above the universal base 1.

[0023] By adopting the above technical solution, as the basic component of the clamp, multiple screw holes 3 are provided on both sides of the universal base 1 for installing studs 4. The studs 4 pass through the through holes on the universal pressure cover 2 and are connected to the locking nuts 5. The position of the pressure cover is fixed by rotating the locking nuts 5. It can adapt to check valve components of various external sizes, reduce the number of clamps, reduce manufacturing costs, and reduce the probability of accidents such as being hit.

[0024] This embodiment is further configured such that the blocking cover 6 is provided with a water pressure test vent 8 and a pressure gauge interface 9 respectively.

[0025] By adopting the above technical solution, a water pressure test vent 8 and a pressure gauge interface 9 are provided on the plug cover 6, which facilitates water pressure testing and pressure monitoring.

[0026] This embodiment is further configured such that an inlet 10 is provided on one side of the bottom plug 7 , and the inlet 10 is a water source inlet 10 or a gas source inlet 10 .

[0027] By adopting the above technical solution, an inlet 10 is provided on one side of the bottom plug 7, which can be used as a water source inlet 10 or an air source inlet 10. It can perform both water pressure tests and air tightness tests, and is suitable for different types of test requirements.

[0028] This embodiment is further configured such that an O-ring 11 is provided on the connecting surfaces of the plug cover 6 and the bottom plug 7 .

[0029] By adopting the above technical solution, an O-ring 11 is provided on the connecting surface of the plug cover 6 and the bottom plug 7, thereby ensuring no leakage during the test and improving the accuracy of the test results.

[0030] This embodiment is further configured such that the number of the screw holes 3 is 6.

[0031] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process.

[0032] Example: According to the size of the check valve component, install a pair of studs 4 into the screw holes 3 adapted by the universal base 1, place the check valve on the bottom plug 7, place the universal gland 2 on top of the check valve component, and align the through-holes on the gland with the studs 4 on the base until the plug 6 is tightly against the top of the check valve. Use the lock nut 5 to secure the gland to the base to ensure that the check valve component is firmly compressed. Connect the pressure gauge to the plug 6, and supply water or air to the check valve through the inlet 10. Observe the reading on the pressure gauge to ensure that the pressure reaches the predetermined value and check for leaks.

[0033] It should be noted that the appearance of the studs 4 needs to be checked regularly. If they are broken or necked, they need to be replaced in time. When replacing the studs 4, the entire batch needs to be replaced.

[0034] After the test, it is necessary to clean it up and spray anti-rust oil to prevent the fixture from rusting and affecting the sealing performance during the test.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0036] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic and airtight multi-compatible fixture, comprising a universal base (1) and a universal gland (2), characterized in that: A plurality of screw holes (3) are provided on both sides of the universal base (1), and a pair of studs (4) are screwed into the screw holes (3) on both sides. Through holes corresponding to the screw holes (3) are opened on both sides of the universal pressure cover (2), and a pair of studs (4) are passed through the through holes. Locking nuts (5) are screwed on the upper ends of the studs (4). A plug cover (6) is detachably installed below the universal pressure cover (2), and a bottom plug (7) is detachably installed above the universal base (1).

2. The hydraulic and airtight multi-compatible fixture according to claim 1, characterized in that: The blocking cover (6) is provided with a water pressure test vent (8) and a pressure gauge interface (9).

3. The hydraulic and airtight multi-compatible fixture according to claim 2, characterized in that: An inlet (10) is provided on one side of the bottom plug (7), and the inlet (10) is a water source inlet or a gas source inlet.

4. The hydraulic and airtight multi-compatible fixture according to claim 3, characterized in that: An O-type sealing ring (11) is provided on the connecting surfaces of the plug cover (6) and the bottom plug (7).

5. The hydraulic and airtight multi-compatible fixture according to claim 1, characterized in that: The number of the screw holes (3) is 6.