Pressure testing fixture

Abstract

The utility model discloses a pressure test frock, include: equipment skeleton, a plurality of interface components are set up on equipment skeleton, and the interface of interface component component is compatible with K type joint joint shape, and interface component includes a plurality of three -way connecting pipes, a plurality of double -way connecting pipes and a plurality of K type joints, and the detection end of double -way connecting pipe is provided with K type joint, a plurality of high pressure rubber pipes, a plurality of three -way connecting pipes are connected in series through high pressure rubber pipe. The utility model discloses a pressure test frock, can adapt to high pressure test scene, can reduce the medium leakage condition in the testing process, can flexibly cope with different specifications test object and the test quantity switching demand of a plurality of finished products or a plurality of single parts, need not replace the complete set of equipment, can guarantee the accuracy of test data, and convenient operation can provide protection when testing, reduce the security risk under the high pressure test scene.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure testing devices, and in particular to a pressure testing fixture. Background Technology

[0002] In the manufacturing process of fluid transmission components such as nozzles, pressure testing fixtures are key equipment to ensure product quality. Their core function is to simulate the actual working environment to test the pressure performance of the nozzles, determine whether the nozzle pressure meets the design standards, and prevent unqualified products from entering the market.

[0003] However, existing pressure testing fixtures have significant shortcomings in practical applications. The fixtures lack a unified support structure to organize the various functional components. The interface components of the existing fixtures have poor compatibility with the connecting pipelines. The connection structure between pipelines cannot stably match the pathways with different transmission requirements. Furthermore, the sealing and fixing effects of the connection parts are not good, which can easily lead to media leakage in high-pressure testing scenarios, affecting the accuracy of pressure detection. In addition, due to the inconvenience of disassembly and assembly and insufficient compatibility, the pipeline debugging before each test is time-consuming, reducing the overall testing efficiency and making it difficult to meet the production needs of batch testing of nozzles. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this utility model is to propose a pressure testing fixture that can be adapted to high-pressure testing scenarios and reduce the possibility of medium leakage during testing; it can flexibly cope with the testing requirements of different specifications of test objects and multiple finished products or multiple individual components without replacing the entire set of equipment; it can ensure the accuracy of test data and is easy to operate, while providing protection during testing and reducing safety risks in high-pressure testing scenarios.

[0006] To achieve the above objectives, this utility model proposes a pressure testing fixture, comprising:

[0007] Equipment skeleton;

[0008] Multiple interface components are disposed on the device frame. The interface of each interface component is adapted to the shape of a K-type connector. Each interface component includes multiple T-connectors, multiple T-connectors, and multiple K-type connectors. The detection end of each T-connector is provided with a K-type connector.

[0009] Multiple high-pressure rubber hoses are connected in series via the multiple three-way connecting pipes, and the air outlet of the three-way connecting pipe is connected to the air inlet of the two-way connecting pipe via a K-type connector.

[0010] A pressure gauge is used to measure the pressure of the nozzle.

[0011] This utility model's pressure testing fixture is adaptable to high-pressure testing scenarios and can reduce media leakage during testing. It can flexibly handle the switching needs of different specifications of test objects and multiple finished products or multiple individual components without replacing the entire set of equipment. It can ensure the accuracy of test data and is easy to operate. At the same time, it can provide protection during testing and reduce safety risks in high-pressure testing scenarios.

[0012] In addition, the pressure testing fixture proposed in the application may also have the following additional technical features:

[0013] Furthermore, it also includes an adapter interface, one end of which is adapted to the detection port of the pressure detector, and the other end of which is adapted to the interface of the nozzle being tested.

[0014] Furthermore, the high-pressure rubber hose includes a single-end rubber connecting pipe and a double-end rubber connecting pipe;

[0015] One end of the single-ended rubber connecting tube is provided with a K-type connector, and the other end of the single-ended rubber connecting tube is an open port;

[0016] Both ends of the double-ended rubber connecting tube are equipped with K-type connectors.

[0017] Furthermore, the interface component also includes a bend-through connecting pipe.

[0018] Furthermore, it also includes a fixed partition, on which multiple sets of grooves adapted to the pipe wall of the interface assembly are formed.

[0019] Furthermore, the fixed partition is mounted on the equipment frame, and multiple sets of the double-through connecting pipes are fixed to the inner wall of the pipe groove of the fixed partition.

[0020] Furthermore, the interface of the interface component is a stepped cylindrical shape, and its inner wall is provided with a conical sealing surface adapted to the K-type connector. The conical sealing surface is used to fit with the corresponding conical surface of the K-type connector to form a hard seal.

[0021] Furthermore, the outer peripheral wall of the interface component is provided with at least two annular grooves:

[0022] An O-ring is provided in the first groove near the end to form an auxiliary seal with the K-type connector or K-type coupling.

[0023] The second groove is a positioning groove, which has a radially penetrating through hole for inserting a U-shaped pin to achieve mechanical positioning with a K-type connector or K-type connector head.

[0024] Furthermore, it also includes multiple adjustable bases, which are respectively located at the bottom of the four corners of the device frame.

[0025] Furthermore, it also includes a protective baffle and a baffle sliding member. Two sets of baffle sliding members are provided on both sides of the equipment frame. The baffle sliding member has a baffle sliding cavity. The baffle sliding member slides in conjunction with the baffle sliding cavity. The protective baffle is slidably connected to the baffle sliding member.

[0026] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0028] Figure 1 This is a schematic diagram of the pressure testing fixture structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the pressure testing fixture of this utility model without the baffle.

[0030] Figure 3 This is a schematic diagram of the pressure testing fixture of this utility model with the baffle removed from another perspective;

[0031] Figure 4 This is a schematic diagram of the structure of the pressure testing fixture baffle after it is opened.

[0032] Figure 5 This is a structural schematic diagram of the interface components and their connecting parts in the pressure testing fixture of this utility model;

[0033] Figure 6 This is a schematic diagram of the split structure of the pressure testing tooling interface assembly and its connecting parts of this utility model;

[0034] Figure 7 This is a schematic diagram of the three-way connecting pipe in the pressure testing fixture of this utility model;

[0035] Figure 8 This is a schematic diagram of the double-connecting pipe in the pressure testing fixture of this utility model;

[0036] Figure 9 This is a schematic diagram of the single-end rubber connecting tube in the pressure testing fixture of this utility model;

[0037] Figure 10 This is a schematic diagram of the double-ended rubber connecting tube in the pressure testing fixture of this utility model;

[0038] Figure 11 This is a schematic diagram of the interface for adapting specifications in the pressure testing fixture of this utility model.

[0039] As shown in the figure: 1. Equipment frame; 2. Adjustable base; 3. Fixed partition; 4. Interface assembly; 5. Adaptive interface; 6. Pressure detector; 7. High-pressure rubber hose; 8. Protective baffle; 9. Baffle sliding component; 10. Baffle sliding cavity; 401. T-connector; 402. T-connector; 403. K-type connector; 701. Single-end rubber connector; 702. Double-end rubber connector; 703. K-type connector. Detailed Implementation

[0040] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0041] The pressure testing fixture of this utility model embodiment will be described below with reference to the accompanying drawings.

[0042] like Figures 1-11 As shown, the pressure testing fixture of this utility model embodiment includes:

[0043] Equipment skeleton 1;

[0044] Multiple interface components 4 are set on the equipment frame 1. The interface of the interface component 4 is adapted to the shape of the K-type connector 403. The interface component 4 includes multiple three-way connecting pipes 401, multiple two-way connecting pipes 402 and multiple K-type connectors 403. The detection end of the two-way connecting pipe 402 is provided with a K-type connector 403.

[0045] Multiple high-pressure rubber hoses 7 and multiple three-way connecting pipes 401 are connected in series via high-pressure rubber hoses 7, and the air outlet of the three-way connecting pipe 401 is connected to the air inlet of the two-way connecting pipe 402 via a K-type connector 403.

[0046] Pressure gauge 6 is used to detect nozzle pressure.

[0047] Specifically, based on actual testing requirements, on the interface component 4 supported by the equipment frame 1, confirm the matching and connection status of the three-way connecting pipe 401, the two-way connecting pipe 402 and the K-type connector 403 to ensure that each interface fits and matches; at the same time, assemble front and rear sliding baffles, which do not affect the quick disassembly of the subsequent test products, providing protection for testing while ensuring ease of operation.

[0048] The high-pressure medium transmission starts the high-pressure medium supply source. The medium is transmitted through the pathway of "high-pressure rubber hose 7 connected in series with a three-way connector 401 → K-type connector 403 → double-way connector 402", and is finally delivered to the nozzle or finished product to be tested at the detection end of the double-way connector 402. In this process, the structure of the K-type connector 403 connected in series with the high-pressure rubber hose 7 can effectively withstand high test pressure and ensure stable and sealed transmission of the medium.

[0049] Pressure testing: After the high-pressure medium is stably delivered to the nozzle to be tested, the pressure detector 6 is started to collect and feed back the working pressure data of the nozzle in real time. The staff can judge whether the nozzle pressure meets the standard requirements by reading the detector.

[0050] If it is necessary to switch the test scenario during test adjustments and completion, such as switching from testing 4 finished products to testing 8 individual nozzles, adjust the number of connections between the three-way connecting pipe 401 and the two-way connecting pipe 402 in interface component 4.

[0051] In actual use, the number and position of interface component 4 can be freely adjusted according to actual testing needs to perform different tooling tests.

[0052] In one embodiment of this utility model, it further includes an adapter specification interface 5, one end of which is adapted to the detection port of the pressure detector 6, and the other end of which is adapted to the interface of the nozzle being tested.

[0053] Specifically, the adapter interface 5 can adapt to different interface specifications of the nozzles or finished products being tested through its own adaptability, thus meeting the pressure testing requirements of the tooling in different testing scenarios and ensuring the stability of the testing path.

[0054] In one embodiment of this utility model, the high-pressure rubber hose 7 includes a single-end rubber connecting pipe 701 and a double-end rubber connecting pipe 702;

[0055] One end of the single-ended rubber connecting tube 701 is provided with a K-type connector 703, and the other end of the single-ended rubber connecting tube 701 is an open port;

[0056] Both ends of the double-ended rubber connecting pipe 702 are equipped with K-type connectors 703.

[0057] Specifically, the K-type connector 703 of the high-pressure rubber hose 7 is designed to be compatible with the pressure testing fixture, which uses a KJ component and a high-pressure rubber hose assembled in series. That is, the interface component 4 and the high-pressure rubber hose 7 can withstand high pressure and avoid leakage caused by insufficient pressure resistance of threaded connections. At the same time, the rubber hose with two different port designs, single end and double end, can be adapted to the fixture to select according to the actual production needs of the number of products to be tested and switch according to different usage scenarios, so as to meet the usage requirements of high-pressure medium transmission in different testing scenarios.

[0058] In one embodiment of the present invention, the interface component 4 further includes a bend connecting pipe.

[0059] Specifically, when it is necessary to change the direction of the high-pressure medium transmission pipeline, the bend connector can achieve right-angle or specific angle turns of the pipeline without the need for additional modifications to other connecting components. At the same time, its compatibility structure with the K-type connector 403 can maintain the same connection stability as tee and double connectors.

[0060] In one embodiment of this utility model, a fixed partition 3 is further included, on which multiple sets of pipe grooves adapted to the pipe wall of the interface assembly 4 are formed. The fixed partition 3 is mounted on the equipment frame 1, and multiple sets of double-through connecting pipes 402 are fixed to the inner wall of the pipe grooves of the fixed partition 3.

[0061] Specifically, this avoids pipe vibration caused by high-pressure medium transmission during testing and ensures the stability of the connection between the double-connector 402 and other components, such as the tee connector 401 and the K-type connector 403.

[0062] In one embodiment of the present invention, the interface of the interface component 4 is a stepped cylindrical shape, and its inner wall is provided with a conical sealing surface adapted to the K-type connector 403. The conical sealing surface is used to fit with the corresponding conical surface of the K-type connector 403 to form a hard seal.

[0063] Specifically, the pressure testing fixture uses a KJ assembly connected in series with a high-pressure rubber tube to withstand high pressure, avoiding the design requirement of "leaking due to insufficient pressure resistance of threaded connections". The stepped cylindrical structure of the interface provides a stable foundation for the insertion and positioning of the K-type connector 403, while the hard seal formed by the conical sealing surface can significantly improve the pressure resistance and sealing performance at the interface. Compared with threaded connections that are prone to leakage due to insufficient pressure resistance, this fitting hard seal can adapt to the fixture's high-pressure environment requirements, ensuring that there is no leakage at the connection between the interface assembly 4 and the K-type connector 403 during the transmission of high-pressure media.

[0064] In one embodiment of this utility model, the outer peripheral wall of the interface component 4 is provided with at least two annular grooves:

[0065] An O-ring is provided in the first groove near the end to form an auxiliary seal with the K-type connector 403 or the K-type connector 703.

[0066] The second groove is a positioning groove, which has a radial through hole for inserting a U-shaped pin to achieve mechanical positioning with the K-type connector 403 or the K-type connector 703.

[0067] In one embodiment of this utility model, a plurality of adjustable bases 2 are also included, which are respectively disposed at the bottom of the four corners of the equipment frame 1.

[0068] Specifically, the height of each base can be adjusted to adapt to different ground environments.

[0069] In one embodiment of this utility model, a protective baffle 8 and a baffle sliding member 9 are also included. Two sets of baffle sliding members 9 are provided on both sides of the equipment frame 1. The baffle sliding member 9 has a baffle sliding cavity 10. The baffle sliding member 9 and the baffle sliding cavity 10 are slidably engaged. The protective baffle 8 and the baffle sliding member 9 are slidably connected.

[0070] Specifically, the baffle sliding cavity 10 of the baffle sliding member 9 forms a sliding fit with the protective baffle 8, so that the protective baffle 8 can move freely along the baffle sliding member 9 and the protective baffle 8 can be removed.

[0071] In actual use,

[0072] Connect the pressure tester 6 to the nozzle or finished product to be tested using the adapter interface 5: Connect one end of the adapter interface 5 to the test port of the pressure tester 6, and connect the other end to the interface of the object being tested.

[0073] The high-pressure medium transmission starts the high-pressure medium supply source, and the medium is transmitted along the path of "supply source → high-pressure rubber hose 7 → series tee connector 401 → K-type connector 403 → double connector 402":

[0074] If the pipeline needs to be turned, a right-angle or specific angle turn can be achieved through the bend connecting pipe in interface component 4, without the need to modify other components;

[0075] Relying on the matching structure of K-type connector 403, K-type connector 703 and interface assembly 4, as well as the dual protection of conical hard seal + O-ring auxiliary seal, the medium is stably transmitted under high pressure, avoiding leakage caused by insufficient pressure resistance of threaded connection.

[0076] Pressure detection and monitoring: The pressure detector 6 is activated and collects the working pressure data of the nozzle or finished product under test in real time through the adapter interface 5.

[0077] After all test objects have completed the test, shut off the high-pressure medium supply source and pressure detector 6, and wait for the internal pressure of the tooling to be completely released.

[0078] In summary, the pressure testing fixture of this utility model embodiment is adaptable to high-pressure testing scenarios and can reduce the possibility of medium leakage during testing; it can flexibly cope with the testing requirements of different specifications of test objects and the number of tests of "multiple finished products or multiple individual components" without replacing the entire set of equipment; it can ensure the accuracy of test data and is easy to operate, while providing protection during testing and reducing safety risks in high-pressure testing scenarios.

[0079] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0080] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0081] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A pressure testing fixture, characterized in that, include: Equipment skeleton (1); Multiple interface components (4) are disposed on the device frame (1). The interface of the interface component (4) is adapted to the shape of the K-type connector (403). The interface component (4) includes multiple three-way connecting pipes (401), multiple two-way connecting pipes (402) and multiple K-type connectors (403). The detection end of the two-way connecting pipe (402) is provided with a K-type connector (403). Multiple high-pressure rubber hoses (7) are connected in series with multiple three-way connecting pipes (401) through the high-pressure rubber hoses (7), and the air outlet of the three-way connecting pipe (401) is connected to the air inlet of the two-way connecting pipe (402) through a K-type connector (403); Pressure detector (6) is used to detect nozzle pressure.

2. The pressure testing fixture according to claim 1, characterized in that, It also includes an adapter interface (5), one end of which is adapted to the detection port of the pressure detector (6), and the other end of which is adapted to the nozzle interface to be tested.

3. The pressure testing fixture according to claim 1, characterized in that, The high-pressure rubber hose (7) includes a single-end rubber connecting pipe (701) and a double-end rubber connecting pipe (702); One end of the single-ended rubber connecting tube (701) is provided with a K-type connector (703), and the other end of the single-ended rubber connecting tube (701) is an open port; Both ends of the double-ended rubber connecting tube (702) are provided with K-type connectors (703).

4. The pressure testing fixture according to claim 1, characterized in that, The interface component (4) also includes a bend connecting pipe.

5. The pressure testing fixture according to claim 1, characterized in that, It also includes a fixed partition (3), on which multiple sets of grooves adapted to the pipe wall of the interface assembly (4) are provided.

6. The pressure testing fixture according to claim 5, characterized in that, The fixed partition (3) is mounted on the equipment frame (1), and multiple sets of the double-through connecting pipes (402) are fixed to the inner wall of the pipe groove of the fixed partition (3).

7. The pressure testing fixture according to claim 1, characterized in that, The interface of the interface component (4) is a stepped cylindrical shape, and its inner wall is provided with a conical sealing surface adapted to the K-type connector (403). The conical sealing surface is used to fit with the corresponding conical surface of the K-type connector (403) to form a hard seal.

8. The pressure testing fixture according to claim 7, characterized in that, The interface component (4) has at least two annular grooves on its outer peripheral wall: An O-ring is provided in the first groove near the end to form an auxiliary seal with the K-type connector (403) or K-type connector (703); The second groove is a positioning groove, which has a radial through hole for inserting a U-shaped pin to achieve mechanical positioning with the K-type connector (403) or K-type connector (703).

9. The pressure testing fixture according to any one of claims 1-8, characterized in that, It also includes multiple adjustable bases (2), which are respectively located at the bottom of the four corners of the equipment frame (1).

10. The pressure testing fixture according to any one of claims 1-9, characterized in that, It also includes a protective baffle (8) and a baffle sliding member (9). Two sets of baffle sliding members (9) are provided on both sides of the equipment frame (1). The baffle sliding member (9) has a baffle sliding cavity (10). The baffle sliding member (9) and the baffle sliding cavity (10) are slidably engaged. The protective baffle (8) and the baffle sliding member (9) are slidably connected.

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