Mechanical seal pressure testing device
By designing a mechanical seal pressure testing device that includes a placement platform, cavity, support column, limiting component and ventilation interface, the problems of poor testing effect and time-consuming replacement in the existing technology are solved, and the stability and convenience of the seal are realized.
Patent Information
- Application Number
- CN202520951038.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-29
- Estimated Expiration
- 2035-05-15
Smart Images

Figure CN224303444U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sealing pressure testing devices, and in particular to a mechanical seal pressure testing device. Background Technology
[0002] Mechanical seals have strict requirements for size and strength during use. Cylindrical mechanical seals, in particular, have poor testing effectiveness with testing devices, and testing their strength and sealing performance is time-consuming, reducing the practicality of pressure testing devices. A patent application published on the Chinese Patent Network, entitled "A Pressure Testing Device for Mechanical Seals" (application number "201920731251.5"), improves the convenience of maintenance and the applicability of the device by using eight equally spaced octagonal bolts to connect to the sealing barrel, thereby enhancing the practicality of the pressure testing device. However, this device still poses a potential obstacle to workflow during the collection and replacement of mechanical seals and the testing of their strength and sealing performance, leading to an increase in the overall time required for mechanical seal testing. Utility Model Content
[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a mechanical seal pressure testing device that facilitates the quick replacement of mechanical seals to be tested by the staff, ensures that the mechanical seals have sufficient stability during the testing process, improves the testing accuracy of the pressure testing device, increases the overall convenience of mechanical seal testing, and improves the comfort of using the pressure testing device.
[0004] This utility model also provides a mechanical seal pressure testing device as described above, comprising: a base plate, a mounting frame and a placement platform fixedly connected to the upper surface of the base plate, a pressing component fixedly connected to the upper surface of the mounting frame, the pressing component and the placement platform being distributed vertically opposite to each other, a cavity provided inside the placement platform, the cavity penetrating the upper surface of the placement platform, a support column fixedly connected inside the cavity, the height of the support column being lower than the height of the internal space of the cavity, when using the device, the cavity and the support column engaging the mechanical seal, multiple ventilation ports fixedly connected to the surface of the placement platform, the ventilation ports communicating with each other, a blower provided on the upper surface of the base plate, the air outlet of the blower being fixedly connected to the ventilation ports.
[0005] According to the mechanical seal pressure testing device of this utility model, a limiting component is fixedly connected to the opposite side of the mounting bracket, and the limiting component is in close contact with the surface of the mechanical seal. This improves the stability of the mechanical seal.
[0006] According to the mechanical seal pressure testing device of this utility model, the limiting assembly consists of two contour plates and two spring rods, wherein the contour plates are in close contact with the surface of the mechanical seal. This facilitates the use of the limiting assembly.
[0007] According to the mechanical seal pressure testing device of this utility model, a connecting rod is fixedly connected to the opposite side of the conformal plate. When using the device, the connecting rod is in close contact with the surface of the mechanical seal. This improves the effectiveness of the limiting component.
[0008] According to the mechanical seal pressure testing device of this utility model, both the connecting rod and the contour plate have a flocked plate fixedly connected to their lower surfaces, and the flocked plate and the contact area between the placement platform and the mechanical seal are vertically opposite each other. This improves the convenience of judging the sealing performance.
[0009] According to the mechanical seal pressure testing device of this utility model, a top plate is fixedly connected to the lower inner wall of the cavity, and the top plate extends through the interior of the support column. This improves the convenience of retrieving the mechanical seal.
[0010] According to the mechanical seal pressure testing device of this utility model, the top plate is composed of a contact plate and an automatic telescopic rod. When using the device, the upper surface of the contact plate is in close contact with the lower surface of the mechanical seal. This facilitates the maintenance of the top plate.
[0011] Beneficial effects
[0012] 1. Compared with the prior art, this mechanical seal pressure testing device improves the stability of the mechanical seal to be tested during the pressure testing process by using a placement platform, cavity, support column, limiting component, ventilation interface, and flocking plate, thereby improving the testing accuracy and convenience of the pressure testing device.
[0013] 2. Compared with the existing technology, this mechanical seal pressure testing device further improves the convenience of retrieving mechanical seal components and enhances the comfort of using the pressure testing device through the cavity, automatic telescopic rod, and contact plate. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0015] Figure 1 This is a right-side structural view of a mechanical seal pressure testing device according to the present invention;
[0016] Figure 2 This is a left view of the mechanical seal pressure testing device of this utility model;
[0017] Figure 3 This is a bottom view of the mechanical seal pressure testing device of this utility model;
[0018] Figure 4 This is a cross-sectional view of a mechanical seal pressure testing device according to the present invention;
[0019] Figure 5This is a structural diagram of the top plate of a mechanical seal pressure testing device according to the present invention.
[0020] Legend:
[0021] 1. Base plate; 2. Mounting bracket; 3. Pressing assembly; 4. Placement platform; 5. Cavity; 6. Support column; 7. Top plate; 8. Spring rod; 9. Connecting rod; 10. Pile board; 11. Blower; 12. Contour plate; 13. Ventilation interface; 14. Automatic telescopic rod; 15. Contact plate; 16. Limiting assembly. Detailed Implementation
[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0023] Reference Figure 1-5 This utility model provides a mechanical seal pressure testing device, which includes: a base plate 1, an mounting frame 2 and a placement platform 4 fixedly connected to the upper surface of the base plate 1, a pressing component 3 fixedly connected to the upper surface of the mounting frame 2, the pressing component 3 and the placement platform 4 being distributed vertically opposite each other, and the above devices cooperate with each other to form the basic structure of the pressure testing device.
[0024] The placement platform 4 has a cavity 5 inside, which extends through the upper surface of the placement platform 4. A support column 6 is fixedly connected inside the cavity 5. The height of the support column 6 is lower than the height of the internal space of the cavity 5. When using the device, the cavity 5 and the support column 6 engage with the mechanical seal. The cavity 5 and the support column 6 cooperate to quickly fix the mechanical seal to be tested. The diameter of the internal space of the cavity 5 is the same as the diameter of the mechanical seal. The support column 6 provides support force for the mechanical seal to cope with pressure. A top plate 7 is fixedly connected to the lower inner wall of the cavity 5. The top plate 7 extends through the interior of the support column 6. The top plate 7 consists of a contact plate 15 and an automatic telescopic rod 14. When using the device, the upper surface of the contact plate 15 is in close contact with the lower surface of the mechanical seal. The top plate 7 improves the convenience of retrieving the mechanical seal.
[0025] The mounting bracket 2 is fixedly connected to the limiting component 16 on the opposite side. The limiting component 16 is in close contact with the surface of the mechanical seal. The limiting component 16 consists of two contour plates 12 and two spring rods 8. The contour plates 12 are in close contact with the surface of the mechanical seal. The limiting component 16 further improves the accessibility of the mechanical seal. The opposite side of the contour plates 12 is fixedly connected to the docking rod 9. When using the device, the docking rod 9 is in close contact with the surface of the mechanical seal. The docking rod 9 further improves the limiting effect of the limiting component 16 on the mechanical seal, and at the same time improves the stability of the limiting component 16 when it is in operation.
[0026] Multiple ventilation ports 13 are fixedly connected to the surface of the placement platform 4. The ventilation ports 13 are interconnected with the cavity 5. A blower 11 is provided on the upper surface of the base plate 1. The air outlet of the blower 11 is fixedly connected to the ventilation port 13. The above devices cooperate with the cavity 5 to facilitate the staff to judge the sealing effect of the mechanical seal. The lower surfaces of the connecting rod 9 and the contour plate 12 are both fixedly connected with flocked plates 10. The flocked plates 10 and the contact points between the placement platform 4 and the mechanical seal are distributed vertically opposite each other. The flocked plates 10 improve the convenience of judging whether there is an air leak.
[0027] Working principle: First, the mechanical seal to be tested is snapped into place 4. Then, the limiting component 16 further restricts the mechanical seal. Next, the pressing component 3 is used to test the strength of the mechanical seal. Since the diameter of the cavity 5 is the same as the diameter of the mechanical seal, the sealing effect of the mechanical seal can be determined when air is supplied to the cavity 5. The lightweight nature of the fleece plate 10 effectively detects whether there is gas leakage inside the cavity 5. After testing, the top plate 7 can be used to separate the mechanical seal from the place 4 from below. The embodiments of this utility model have been described in detail above with reference to the accompanying drawings. However, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model.
Claims
1. A mechanical seal pressure testing device, characterized in that, include: The base plate (1) has a mounting frame (2) and a placement platform (4) fixedly connected to its upper surface. The mounting frame (2) has a pressing component (3) fixedly connected to its upper surface. The pressing component (3) and the placement platform (4) are distributed vertically opposite to each other. The placement platform (4) has a cavity (5) inside, which extends through the upper surface of the placement platform (4). A support column (6) is fixedly connected inside the cavity (5). The height of the support column (6) is lower than the height of the internal space of the cavity (5). When the device is used, the cavity (5) and the support column (6) are engaged with a mechanical seal. Multiple ventilation ports (13) are fixedly connected to the surface of the placement platform (4). The ventilation ports (13) are interconnected with the cavity (5). A blower (11) is provided on the upper surface of the base plate (1). The air outlet of the blower (11) is fixedly connected to the ventilation port (13).
2. The mechanical seal pressure testing device according to claim 1, characterized in that, The mounting bracket (2) is fixedly connected to a limiting component (16) on the opposite side, and the limiting component (16) is in close contact with the surface of the mechanical seal.
3. The mechanical seal pressure testing device according to claim 2, characterized in that, The limiting component (16) consists of two contour plates (12) and two spring rods (8), with the contour plates (12) in close contact with the surface of the mechanical seal.
4. The mechanical seal pressure testing device according to claim 3, characterized in that, A connecting rod (9) is fixedly connected to the opposite side of the contour plate (12). When the device is in use, the connecting rod (9) is in close contact with the surface of the mechanical seal.
5. A mechanical seal pressure testing device according to claim 4, characterized in that, The lower surfaces of both the docking rod (9) and the contour plate (12) are fixedly connected with a pile plate (10), and the pile plate (10) and the contact point between the placement platform (4) and the mechanical seal are distributed vertically opposite each other.
6. The mechanical seal pressure testing device according to claim 1, characterized in that, The lower inner wall of the cavity (5) is fixedly connected to a top plate (7), which extends through the interior of the support column (6).
7. A mechanical seal pressure testing device according to claim 6, characterized in that, The top plate (7) consists of a contact plate (15) and an automatic telescopic rod (14). When the device is in use, the upper surface of the contact plate (15) is in close contact with the lower surface of the mechanical seal.
Citation Information
Patent Citations
Pressure test mechanical sealing device
CN210232756U