High-sealing vacuum pump end cover
By employing a multi-layer design of sealing gaskets, rings, and threaded rods on the vacuum pump end cover, the problem of poor sealing is solved, achieving a tight connection between the end cover and the pump body and impurity filtration, maintaining a good vacuum environment, enhancing structural strength, and facilitating maintenance.
Patent Information
- Application Number
- CN202520366137.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-03-04
AI Technical Summary
The existing vacuum pump end cap and pump body have insufficient sealing, which leads to air leakage, affects the vacuum level and pumping efficiency, and easily accumulates dust and impurities, affecting the pump's performance and sealing effect.
A high-sealing vacuum pump end cover was designed, employing a multi-seal structure of sealing gasket, sealing ring, and sealing ring. A tight connection between the end cover body and the pump body is achieved through the cooperation of rotating threaded rod and gasket with rotating block. At the same time, a connecting shell, filter element, and protective sleeve are used to filter impurities, enhancing structural strength and facilitating maintenance.
This design achieves multiple seals between the end cap body and the pump body, maintaining a good vacuum environment, reducing impurity accumulation, extending the service life of the filter element, and improving the robustness and ease of maintenance of the end cap.
Smart Images

Figure CN223662037U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum pump end cap technology, specifically to a high-sealing vacuum pump end cap. Background Technology
[0002] A vacuum pump is a device used to create and maintain a vacuum environment. It extracts gas from a sealed container using various physical or chemical methods, making the gas pressure inside the container lower than atmospheric pressure, thereby achieving a vacuum state.
[0003] The end cap of a vacuum pump is an important component. Its main function is to seal the pump body and ensure the normal operation of the pump. It can also prevent foreign objects from entering the pump chamber and affecting the normal operation of the pump. In addition, the design of the end cap can improve the structural performance of the pump and extend its service life.
[0004] The existing vacuum pump end cover and pump body have insufficient sealing, which can lead to air leakage and affect the vacuum level and pumping efficiency of the vacuum pump. At the same time, dust and impurities can easily accumulate on the surface and inside of the vacuum pump end cover, which can affect the pump's performance and sealing effect. Utility Model Content
[0005] This invention provides a high-sealing vacuum pump end cap that solves the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:
[0007] An embodiment of this utility model provides a high-sealing vacuum pump end cap, comprising: an end cap body, wherein an air inlet and an exhaust outlet are provided on the surface of the end cap body;
[0008] Two mounting plates are fixedly installed on both sides of the end cap body, and the mounting plates are evenly provided with a number of mounting holes;
[0009] Two docking bodies are respectively fixedly installed at the air inlet and the air outlet on the inner wall of the end cap body;
[0010] The mounting base is fixedly installed on the surface of the end cap body to reinforce and stabilize the two docking bodies.
[0011] The above technical solution uses an air inlet to draw gas from the external environment to form a sealed pump body space; an air outlet to discharge gas from the pump body, reduce the pressure inside the pump body, and form a vacuum; and a mounting plate and a docking body to connect the pump body.
[0012] Furthermore, hinge seats are installed on both sides of the end cap body, a fixing rod is fixedly installed on the surface of the hinge seat, a rotating threaded rod is rotatably connected to the surface of the fixing rod, and a washer and a screw block are threadedly connected to the surface of the rotating threaded rod.
[0013] The above technical solutions enable a more robust and tighter connection between the end cap body and the pump body by using the counterspinning block and gasket.
[0014] Furthermore, four connecting seats are fixedly installed on the inner wall of the end cap body, and positioning rods are fixedly installed inside the connecting seats.
[0015] The above technical solution allows for better positioning when connecting the end cap body and the pump body.
[0016] Furthermore, a sealing gasket is installed on the surface of the end cap body, and two reinforcing ribs and four fixing blocks are fixedly installed on the inner wall of the end cap body.
[0017] Through the above technical solutions, the sealing gasket increases the sealing between the end cover body and the pump body, and the reinforcing block and reinforcing rib improve the structural strength and enhance the robustness of the end cover body.
[0018] Furthermore, the surface of the docking body is provided with an annular groove, and a sealing ring is installed on the surface of the annular groove. The inner wall of the docking body is provided with a retaining groove, and a sealing ring is installed on the surface of the retaining groove. One side surface of the docking body is provided with a chamfer.
[0019] Through the above technical solutions, the sealing ring and sealing ring further enhance the sealing performance when the end cover body is connected to the pump body.
[0020] Furthermore, a connecting shell is installed on the internal thread of the docking body, a support strip is fixedly connected to the inner wall of the connecting shell, a limit post is fixedly connected to the surface of the support strip, and a filter element is sleeved on the surface of the limit post.
[0021] Through the above technical solution, the filter element can filter dust, moisture or other impurities, reduce the accumulation of impurities in the end cap body, facilitate later maintenance and cleaning, and the filter element can be replaced according to the usage conditions.
[0022] Furthermore, two protective sleeves are fixedly installed on the surface of the end cap body, and each of the protective sleeves has a sealing cap installed inside, and the surface of the sealing cap has multiple through holes.
[0023] Through the above technical solutions, the cover prevents the filter element from directly contacting the external environment, increasing the service life of the filter element. The protective cover can prevent the connecting shell, filter element and cover from being damaged by the outside world.
[0024] The above-described solution of this utility model has at least the following beneficial effects:
[0025] 1. This utility model achieves multiple seals between the end cover body and the pump body through the combined use of sealing gaskets, sealing rings and sealing rings. Furthermore, the combined use of rotating threaded rods, washers and rotating blocks ensures a more secure and tight connection between the end cover body and the pump body, preventing gaps between them and ensuring a good vacuum environment is maintained inside the vacuum pump for a long time.
[0026] 2. This utility model, through the combined use of the connecting shell, filter element, cap, and protective sleeve, can reduce the accumulation of impurities in the end cap body, increase the health of the end cap body, provide support for the long-term normal operation of the vacuum pump, and facilitate subsequent maintenance and cleaning.
[0027] 3. This utility model improves the structural strength of the end cap body by using reinforcing ribs, fixing blocks, and fixing seats, increasing the robustness of the end cap body and making it less prone to damage. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0029] Figure 2 This is a partial structural schematic diagram of the present invention;
[0030] Figure 3 This is an exploded structural diagram of the present invention;
[0031] Figure 4 This is a three-dimensional structural schematic diagram of the present invention.
[0032] Explanation of reference numerals in the attached figures:
[0033] 1. End cap body; 11. Air inlet; 12. Exhaust outlet; 2. Mounting plate; 21. Mounting hole; 3. Hinge seat; 31. Fixing rod; 32. Rotating threaded rod; 33. Washer; 34. Rotating block; 4. Connecting seat; 41. Positioning rod; 42. Reinforcing rib; 43. Fixing block; 44. Fixing seat; 5. Sealing gasket; 51. Connecting body; 52. Circular groove; 53. Slot; 54. Sealing ring; 55. Sealing ring; 56. Chamfer; 6. Connecting shell; 61. Support bar; 62. Limiting post; 63. Filter element; 64. Protective sleeve; 65. Cover; 66. Through hole. Detailed Implementation
[0034] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
[0035] like Figures 1 to 4 As shown, an embodiment of the present invention provides a high-sealing vacuum pump end cap, comprising: an end cap body 1, wherein an air inlet 11 and an exhaust outlet 12 are provided on the surface of the end cap body 1;
[0036] Two mounting plates 2 are fixedly installed on both sides of the end cap body 1, and a number of mounting holes 21 are evenly opened on the mounting plates 2;
[0037] Two docking bodies 51 are fixedly installed at the air inlet 11 and the exhaust outlet 12 on the inner wall of the end cover body 1, respectively.
[0038] The fixing seat 44 is fixedly installed on the surface of the end cover body 1 to reinforce and stabilize the two docking bodies 51.
[0039] In this embodiment of the utility model, during installation, the end cap body 1 is connected to the pump body through the mounting plate 2, the docking body 51 and the mounting hole 21 opened on the mounting plate 2. The fixing seat 44 can enhance the stability of the two docking bodies 51 and the strength of the end cap body 1.
[0040] like Figures 1 to 4 As shown, hinge seats 3 are installed on both sides of the end cap body 1. A fixing rod 31 is fixedly installed on the surface of the hinge seat 3. A rotating threaded rod 32 is rotatably connected to the surface of the fixing rod 31. The rotating threaded rod 32 consists of a threaded rod and a rotating head. A washer 33 and a rotating block 34 are threadedly connected to the surface of the rotating threaded rod 32.
[0041] In this embodiment of the utility model, the rotating threaded rod 32 is moved to a fixed position on the surface of the pump body. The rotating block 34 and the washer 33 move downwards to press tightly against the fixed position on the surface of the pump body, thereby achieving a tighter and more secure connection between the end cover body 1 and the pump body. The air inlet 11 is used to draw gas from the external environment to form a sealed pump body space. The air outlet is used to discharge gas from the pump body, reduce the pressure inside the pump body, and form a vacuum.
[0042] like Figures 1 to 4 As shown, four connecting seats 4 are fixedly installed on the inner wall of the end cap body 1, and a positioning rod 41 is fixedly installed inside the connecting seat 4. A sealing gasket 5 is installed on the surface of the end cap body 1, and two reinforcing ribs 42 and four fixing blocks 43 are fixedly installed on the inner wall of the end cap body 1.
[0043] In this embodiment of the utility model, the positioning rod 41 can be positioned more accurately when the end cover body 1 and the pump body are connected, and the stability of the connection is increased. The sealing gasket 5 increases the sealing between the end cover body 1 and the pump body, and avoids gaps between the end cover body 1 and the pump body. The reinforcing block and reinforcing rib 42 improve the structural strength and enhance the robustness of the end cover body 1.
[0044] like Figures 1 to 4 As shown, a circular groove 52 is formed on the surface of the docking body 51, and a sealing ring 54 is installed on the surface of the circular groove 52. A slot 53 is formed on the inner wall of the docking body 51, and a sealing ring 55 is installed on the surface of the slot 53. A chamfer 56 is provided on one side surface of the docking body 51.
[0045] In this embodiment of the invention, the sealing ring 54 and the sealing ring 55 further enhance the sealing performance when the end cover body 1 is connected to the pump body, and can be replaced individually according to the usage conditions during later maintenance.
[0046] like Figures 1 to 4 As shown, a connecting shell 6 is threaded onto the inside of the docking body 51. Two torsion blocks are provided on the surface of the connecting shell 6. A support strip 61 is fixedly connected to the inner wall of the connecting shell 6. A limiting post 62 is fixedly connected to the surface of the support strip 61. A filter element 63 is fitted onto the surface of the limiting post 62. Two protective sleeves 64 are fixedly installed on the surface of the end cap body 1. Each protective sleeve 64 has a sealing cap 65 installed inside it. Multiple through holes are provided on the surface of the sealing cap 65. 66
[0047] In this embodiment of the utility model, the connecting shell 6 can be disassembled by the twisting block to facilitate the later maintenance and cleaning of the end cap body 1. The filter element 63 can filter dust, moisture or other impurities, reducing the accumulation of impurities in the end cap body 1 and ensuring that a good vacuum environment can be maintained in the vacuum pump. The filter element 63 can be replaced according to its usage. The cover 65 prevents the filter element 63 from directly contacting the external environment, increasing the service life of the filter element 63. The protective sleeve 64 can prevent the connecting shell 6, the filter element 63 and the cover 65 from being damaged by the outside world.
[0048] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A high-sealing vacuum pump end cap, characterized in that, include: End cap body (1), the surface of which is provided with an air inlet (11) and an exhaust outlet (12). Two mounting plates (2) are fixedly installed on both sides of the end cap body (1), and a number of mounting holes (21) are evenly opened on the mounting plates (2). Two docking bodies (51) are fixedly installed at the air inlet (11) and the exhaust outlet (12) on the inner wall of the end cap body (1), respectively. The fixing seat (44) is fixedly installed on the surface of the end cap body (1) to reinforce and stabilize the two docking bodies (51).
2. The high-sealing vacuum pump end cover according to claim 1, characterized in that, Both sides of the end cap body (1) are equipped with hinge seats (3), and a fixing rod (31) is fixedly installed on the surface of the hinge seat (3). A rotating threaded rod (32) is rotatably connected to the surface of the fixing rod (31), and a washer (33) and a screw block (34) are threadedly connected to the surface of the rotating threaded rod (32).
3. The high-sealing vacuum pump end cover according to claim 1, characterized in that, Four connecting seats (4) are fixedly installed on the inner wall of the end cap body (1), and a positioning rod (41) is fixedly installed inside the connecting seat (4).
4. The high-sealing vacuum pump end cover according to claim 1, characterized in that, The end cap body (1) is fitted with a sealing gasket (5), and the inner wall of the end cap body (1) is fixedly fitted with two reinforcing ribs (42) and four fixing blocks (43).
5. The high-sealing vacuum pump end cover according to claim 1, characterized in that, The surface of the docking body (51) is provided with an annular groove (52), and a sealing ring (54) is installed on the surface of the annular groove (52). The inner wall of the docking body (51) is provided with a slot (53), and a sealing ring (55) is installed on the surface of the slot (53). One side surface of the docking body (51) is provided with a chamfer (56).
6. The high-sealing vacuum pump end cover according to claim 1, characterized in that, The connecting body (51) is threaded with a connecting shell (6), and a support strip (61) is fixedly connected to the inner wall of the connecting shell (6). A limit post (62) is fixedly connected to the surface of the support strip (61), and a filter element (63) is sleeved on the surface of the limit post (62).
7. The high-sealing vacuum pump end cover according to claim 1, characterized in that, Two protective sleeves (64) are fixedly installed on the surface of the end cap body (1). Each of the protective sleeves (64) has a cover (65) installed inside. The surface of the cover (65) has multiple through holes (66).