Quick connection tool for high-pressure gear pump filter element test

By designing a quick-connect tooling, the problem of complex filter element installation in high-pressure gear pump filter element testing was solved, enabling rapid disassembly and fastening of the filter element, thus improving testing efficiency and equipment reliability.

CN223980227UActive Publication Date: 2026-03-10JIANGSU YITONG INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

The existing high-pressure gear pump filter element testing fixture is complicated and inefficient when installing the filter element, resulting in inaccurate test results and poor equipment reliability.

Method used

A quick-connection tooling including an installation component and a snap-fit ​​component was designed. Through the cooperation of the top cover, vertical rod, fixing sleeve, spring and clamping plate, the filter element can be quickly disassembled, installed and fastened.

Benefits of technology

It simplifies the filter replacement process, improves work efficiency, and ensures the accuracy of test results and the reliability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a quick connection tool for a high-pressure gear pump filter element test, and relates to the technical field of filter element production. The filter element comprises a shell, wherein a filter element body is arranged in the shell; a mounting assembly is arranged at the top of an inner cavity of the shell and comprises a top cover, the top cover is movably connected to the top of the shell through a hinge, a vertical rod is fixedly connected to the interior of the top cover, a fixing sleeve is slidably connected to the surface of the vertical rod, and a first sealing ring is fixedly connected to the surface of the fixing sleeve; and the bottom of the top cover is fixedly connected with a sealing plate. By closing the top cover, the fixing sleeve can be in contact with the top of the filter element body, when the fixing sleeve is in contact with the top of the filter element body, the fixing sleeve moves upwards and extrudes the spring during movement, then the spring enables the fixing sleeve to be in close contact with the top of the filter element body through elasticity of the spring, and therefore certain pressure is generated; therefore, the filter element is fastened and fixed.
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Description

Technical Field

[0001] This utility model belongs to the field of filter element production technology, and in particular relates to a quick connection tooling for testing high-pressure gear pump filter elements. Background Technology

[0002] The purpose of the high-pressure gear pump filter element testing fixture is to conduct systematic performance tests on the filter element, verify its filtration effect, pressure resistance, and reliability under high pressure conditions, and evaluate the filter element's filtration effect on impurities in hydraulic oil during operation. This ensures that the filter element does not become clogged, damaged, or fail under high pressure, thereby guaranteeing the normal operation of the gear pump, extending equipment life, and reducing the occurrence of failures.

[0003] Existing high-pressure gear pump filter element testing fixtures require repeated testing during the processing of high-pressure gear pump filter elements. Currently, most filter element installations are done manually or with the aid of traditional fixing tools. While this method can complete the installation, it involves certain operational complexity and inefficiency. Especially when frequently replacing filter elements or conducting multiple tests, it can easily lead to problems such as excessively long operation time, insufficient installation accuracy, and poor sealing, thereby affecting the accuracy of test results and the reliability of the equipment.

[0004] To address these issues, we provide a quick-connect tooling for testing high-pressure gear pump filter elements. Utility Model Content

[0005] The purpose of this invention is to provide a quick-connect tooling for testing high-pressure gear pump filter elements. By cooperating with the mounting components and the locking components, it solves the problem that existing high-pressure gear pump filter element testing tooling cannot quickly install and remove the filter element.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a quick-connect tooling for testing high-pressure gear pump filter elements, comprising a housing, inside which a filter element body is disposed; an installation assembly is disposed at the top of the inner cavity of the housing, the installation assembly comprising a top cover, the top cover being movably connected to the top of the housing via a hinge, a vertical rod being fixedly connected inside the top cover, a fixing sleeve being slidably connected to the surface of the vertical rod, a first sealing ring being fixedly connected to the surface of the fixing sleeve, and a sealing plate being fixedly connected to the bottom of the top cover; engaging assemblies are disposed on both sides of the bottom of the top cover, the engaging assemblies comprising vertical plates, the vertical plates being fixedly connected to both sides of the bottom of the inner cavity of the top cover, a rotating rod being rotatably connected to one side of the vertical plate, a connecting plate being fixedly connected to the surface of the rotating rod, a tension spring being fixedly connected to the top of the connecting plate, and a clamping plate being fixedly connected to one side of the connecting plate.

[0008] The present invention is further configured such that a circular plate is fixedly connected to the surface of the vertical rod, and a spring is sleeved on the bottom of the surface of the vertical rod, with the top and bottom of the spring being fixedly connected to the bottom of the circular plate and the bottom of the inner cavity of the fixed sleeve, respectively.

[0009] The present invention is further configured such that an installation plate is fixedly connected to the bottom of the outer shell, a sealing groove is provided inside the installation plate, and a second sealing ring is fixedly connected to the bottom of the surface of the filter element body.

[0010] The present invention is further configured such that sliding grooves are provided on both sides of the bottom of the top cover, and the clamping plate is slidably connected to the inside of the movable groove.

[0011] The present invention is further configured such that a feed pipe is connected inside the top cover, and a discharge pipe is connected to the bottom of the outer shell.

[0012] The present invention is further configured such that a limiting pin is provided on one side of the clamping plate, and one end of the limiting pin extends into the interior of the outer shell.

[0013] The present invention is further configured such that limiting plates are fixedly connected to both sides of the inner wall of the fixed sleeve, and the limiting plates are slidably connected to the inside of the circular plate.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model allows the fixing sleeve to contact the top of the filter element body by closing the top cover. When the fixing sleeve contacts the top of the filter element body, the fixing sleeve will move upward and will also compress the spring during the movement. Then, the spring will use its own elasticity to make the fixing sleeve and the top of the filter element body in close contact, thereby generating a certain pressure to achieve the fastening and fixing of the filter element.

[0016] 2. By moving the fixed sleeve upwards, this utility model can also push the connecting plate to move. The connecting plate drives the rotating rod to rotate, and at the same time, the connecting plate will pull the tension spring to move. The rotating rod drives the clamping plate to move, so that the clamping plate contacts the surface of the outer shell. Then, the limit pin is inserted to limit the clamping plate, which can achieve the purpose of limiting the top cover. In addition, the tension spring can facilitate the reset of the clamping plate, thereby facilitating the subsequent replacement of the filter element. This simplifies the subsequent filter element replacement operation, reduces manual intervention, and improves work efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a perspective view of a quick-connect tooling for testing high-pressure gear pump filter elements.

[0019] Figure 2This is a schematic diagram of the internal structure of the top cover in a quick-connect tooling for testing high-pressure gear pump filter elements.

[0020] Figure 3 This is a schematic diagram of the internal structure of the fixed sleeve in a quick-connect tooling for testing high-pressure gear pump filter elements.

[0021] Figure 4 This is a schematic diagram of the internal structure of the outer shell of a quick-connect tooling for testing high-pressure gear pump filter elements.

[0022] In the attached diagram: 1. Outer shell; 2. Filter element body; 3. Top cover; 4. Vertical rod; 5. Fixing sleeve; 6. Sealing plate; 7. Vertical plate; 8. Rotating rod; 9. Connecting plate; 10. Tension spring; 11. Clamping plate; 12. Circular plate; 13. Spring; 14. Mounting plate; 15. Sealing groove; 16. Second sealing ring; 17. Limiting pin; 18. Limiting plate; 19. First sealing ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1

[0025] Please see Figure 1-4 This utility model is a quick-connect tooling for testing high-pressure gear pump filter elements, including a housing 1, inside which a filter element body 2 is disposed; an installation assembly is disposed at the top of the inner cavity of the housing 1, the installation assembly including a top cover 3, the top cover 3 being movably connected to the top of the housing 1 via a hinge, a vertical rod 4 being fixedly connected inside the top cover 3, a fixing sleeve 5 being slidably connected to the surface of the vertical rod 4, a first sealing ring 19 being fixedly connected to the surface of the fixing sleeve 5, and a sealing plate 6 being fixedly connected to the bottom of the top cover 3; a locking assembly is disposed on both sides of the bottom of the top cover 3, the locking assembly including a vertical plate 7, the vertical plate 7 being fixedly connected to both sides of the bottom of the inner cavity of the top cover 3, a rotating rod 8 being rotatably connected to one side of the vertical plate 7, a connecting plate 9 being fixedly connected to the surface of the rotating rod 8, a tension spring 10 being fixedly connected to the top of the connecting plate 9, and a clamping plate 11 being fixedly connected to one side of the connecting plate 9.

[0026] Specifically: the filter element body 2 is placed inside the mounting plate 14. The top cover 3 can not only seal the outer shell 1, but also fix the filter element body 2. The vertical rod 4 can limit the fixing sleeve 5. The bottom sides of the top cover 3 are provided with through grooves, which can facilitate the movement of the fixing sleeve 5. The first sealing ring 19 can seal the through grooves after the filter element is fixed. The sealing plate 6 can seal the connection between the top cover 3 and the outer shell 1. The top and bottom of the tension spring 10 are fixedly connected to the top of the connecting plate 9 and the top of the inner cavity of the top cover 3, respectively. There are four vertical plates 7, which are symmetrically fixed on both sides of the bottom of the inner cavity of the top cover 3. The two ends of the rotating rod 8 are rotatably connected to one side of the vertical plate 7 through bearings.

[0027] Example 2

[0028] Please see Figure 1-4 Based on Embodiment 1, a circular plate 12 is fixedly connected to the surface of the vertical rod 4, and a spring 13 is sleeved on the bottom of the surface of the vertical rod 4. The top and bottom of the spring 13 are fixedly connected to the bottom of the circular plate 12 and the bottom of the inner cavity of the fixed sleeve 5, respectively. An installation plate 14 is fixedly connected to the bottom of the outer shell 1. A sealing groove 15 is opened inside the installation plate 14. A second sealing ring 16 is fixedly connected to the bottom of the surface of the filter element body 2. Sliding grooves are opened on both sides of the bottom of the top cover 3. The clamping plate 11 is slidably connected to the inside of the movable groove. A feed pipe is connected inside the top cover 3. A discharge pipe is connected to the bottom of the outer shell 1. A limit pin 17 is provided on one side of the clamping plate 11. One end of the limit pin 17 extends into the inside of the outer shell 1. Limit plates 18 are fixedly connected to both sides of the inner wall of the fixed sleeve 5. The limit plates 18 are slidably connected to the inside of the circular plate 12.

[0029] Specifically: the top and bottom of the spring 13 are fixedly connected to the bottom of the circular plate 12 and the bottom of the inner cavity of the fixing sleeve 5, respectively; the mounting plate 14 can limit the bottom of the filter element; the sealing groove 15 and the second sealing ring 16 can seal the bottom of the filter element to prevent leakage during testing; the limiting pin 17 can limit the clamping plate 11 to prevent loosening after fixing; and the limiting plate 18 can limit the fixing sleeve 5 to prevent displacement during movement.

[0030] The working principle of this utility model is as follows: When the filter element needs to be installed, the user inserts the filter element into the mounting plate 14 and then closes the top cover 3. When the top cover 3 is closed, the fixing sleeve 5 can contact the top of the filter element body 2. When the fixing sleeve 5 contacts the top of the filter element body 2, the fixing sleeve 5 will move upward and will also compress the spring 13 during the movement. Then, the spring 13 will make the fixing sleeve 5 and the top of the filter element body 2 in close contact through its own elasticity, thereby generating a certain pressure to achieve the fastening and fixing of the filter element.

[0031] Furthermore, the fixing sleeve 5 can also push the connecting plate 9 to move. The connecting plate 9 drives the rotating rod 8 to rotate. At the same time, the connecting plate 9 will also pull the tension spring 10 to move. The rotating rod 8 drives the clamping plate 11 to move, so that the clamping plate 11 contacts the surface of the outer shell 1. Then, the limiting pin 17 is inserted to limit the clamping plate 11, thereby achieving the purpose of limiting the top cover 3. In addition, the setting of the tension spring 10 can facilitate the reset of the clamping plate 11, thereby facilitating the subsequent replacement of the filter element. This simplifies the subsequent filter element replacement operation, reduces manual intervention, and improves work efficiency.

[0032] When it is necessary to remove the filter body 2, the user only needs to pull out the limiting pin 17, then open the top cover 3, and then take out the filter body 2, thereby achieving the purpose of quick disassembly and assembly of the filter body.

[0033] All standard parts used in this invention can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through the control unit. The control circuit of the control unit can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Therefore, the control method and circuit connection will not be explained in detail in this invention.

[0034] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A high pressure gear pump cartridge test quick connect tooling comprising a housing (1) characterised in that: The shell (1) is internally provided with a filter core body (2); The top of the inner cavity of the shell (1) is provided with a mounting assembly, which comprises a top cover (3) which is movably connected to the top of the shell (1) through a hinge, and a vertical rod (4) which is fixedly connected to the inside of the top cover (3), a fixed sleeve (5) which is slidably connected to the surface of the vertical rod (4), a first sealing ring (19) which is fixedly connected to the surface of the fixed sleeve (5), and a sealing plate (6) which is fixedly connected to the bottom of the top cover (3). The bottom of the top cover (3) is provided with a clamping assembly on both sides, which comprises a vertical plate (7) which is fixedly connected to the inner cavity of the top cover (3) on both sides, a rotating rod (8) which is rotatably connected to one side of the vertical plate (7), a connecting plate (9) which is fixedly connected to the surface of the rotating rod (8), a tension spring (10) which is fixedly connected to the top of the connecting plate (9), and a clamping plate (11) which is fixedly connected to one side of the connecting plate (9).

2. The quick connect tool for testing a high pressure gear pump filter element according to claim 1, wherein: The surface of the vertical rod (4) is fixedly connected with a circular plate (12), and the surface of the vertical rod (4) is sleeved with a spring (13) at the bottom, and the top and bottom of the spring (13) are fixedly connected with the bottom of the circular plate (12) and the inner cavity bottom of the fixed sleeve (5), respectively.

3. The quick connect tool for testing a high pressure gear pump filter element of claim 1, wherein: The bottom of the shell (1) is fixedly connected with a mounting plate (14), and the inner cavity of the mounting plate (14) is provided with a sealing groove (15), and the bottom of the surface of the filter core body (2) is fixedly connected with a second sealing ring (16).

4. The quick connect tool for testing high pressure gear pump filter elements of claim 1 wherein: The bottom of the top cover (3) is provided with a sliding groove on both sides, and the clamping plate (11) is slidably connected in the sliding groove.

5. A high pressure gear pump cartridge test quick connect tool according to claim 1, wherein: The inner cavity of the top cover (3) is communicated with a feeding pipe, and the bottom of the shell (1) is communicated with a discharging pipe.

6. A high pressure gear pump cartridge test quick connect tool according to claim 1, wherein: One side of the clamping plate (11) is provided with a limiting pin (17), and one end of the limiting pin (17) extends into the inner cavity of the shell (1).

7. A high pressure gear pump cartridge test quick connect tool according to claim 1, wherein: The inner wall of the fixed sleeve (5) is fixedly connected with a limiting plate (18) on both sides, and the limiting plate (18) is slidably connected in the inner cavity of the circular plate (12).