Filter for vacuum pumps with quick-connect assembly

Abstract

The utility model relates to the technical field of vacuum pumps, and specifically to a filter for a vacuum pump with a quick-connect assembly. The utility model provides a filter for a vacuum pump with a quick-connect assembly, comprising: a filter body; and a quick-connect assembly is arranged on the filter body through a connecting port; wherein the quick-connect assembly comprises a threaded barrel; and a vent is arranged at the center position of the threaded barrel, and an annular groove is opened at the bottom of the threaded barrel; wherein a sealing structure is arranged in the annular groove; wherein a part of the sealing structure extends into the vent; the utility model realizes a quick connection between the filter and the vacuum cover by arranging the threaded barrel, and realizes a sealing effect while reducing the difficulty of assembly by arranging the sealing structure on the threaded barrel, and further enhances the sealing effect by arranging a convex ring.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, in particular to a filter for a vacuum pump with a quick-connect assembly. Background Art

[0002] Existing vacuum pump filters are already common, such as a vacuum pump filter with patent number 201720964293.4. For details, please refer to Figure 1 ,like Figure 1 As shown, it includes an upper cover body 1 and a lower cover body 2, the lower cover body 2 is provided with an air inlet 21, the upper cover body 1 is provided with an air outlet 11, the air inlet 21 is arranged at the bottom of the lower cover body 2, and the air outlet 11 is arranged at the top of the upper cover body, the air inlet 21 and the air outlet 11 are provided with internal threads, the first connecting member is detachably connected with a filter element 3, the lower cover body 2 is sleeved outside the filter element 3 and is detachably connected to the second connecting member, a filter channel 4 is provided between the lower cover body 2 and the filter element 3, the first connecting member includes a connecting platform 12 formed by extending inwardly from the inner wall of the upper cover body 1 and a connecting edge 13 formed by extending outwardly from the connecting platform 12, the connecting edge 13 is provided with an external thread, the The filter element 3 is provided with an internal thread, and the second connecting piece is a lug 14 extending outward from the bottom end of the upper cover body 1, and the lug 14 is provided with an internal thread. The lower cover body 2 is provided with an external thread, and a circular ring-shaped sealing gasket 22 is arranged on the end face of the lower cover body 2. The sealing gasket 22 further increases the air tightness at the connection between the lower cover body 2 and the upper cover body 1. An activated carbon filter layer 15 is arranged in the upper cover body. In the above-mentioned filter and some other related technologies, the filter is connected to the vacuum pump through a thread or a clamp. During the assembly operation, it is necessary to wrap a sealing tape around the thread to improve the sealing effect. When it is wrapped too much, it is difficult to assemble it into place. When it is wrapped too little, it is difficult to achieve a good sealing effect.

[0003] Therefore, how to solve the problem of poor sealing effect when the filter is assembled through threads is a technical problem that needs to be solved urgently in the art. Utility Model Content

[0004] The utility model provides a filter for a vacuum pump with a quick-connect assembly to solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, an embodiment of the utility model provides a filter for a vacuum pump with a quick-connect assembly, comprising: a filter body; and a quick-connect assembly is arranged on the filter body through a connecting port; wherein the quick-connect assembly comprises a threaded barrel; and a vent is arranged at the center position of the threaded barrel, and an annular groove is opened at the bottom of the threaded barrel; wherein a sealing structure is arranged in the annular groove; and a part of the sealing structure extends into the vent.

[0006] Furthermore, a plurality of arc-shaped grooves are provided on the inner wall of the vent hole near the top; wherein a portion of the sealing structure passes through the arc-shaped grooves and extends into the vent hole.

[0007] Furthermore, a stop ring is installed on the top of the threaded barrel; wherein the bottom surface of the stop ring abuts against a portion of the top surface of the sealing structure.

[0008] Furthermore, the sealing structure includes a transition portion; and a first edge sealing portion arranged on the top surface of the transition portion and a second edge sealing portion arranged on the bottom surface of the transition portion; wherein the transition portion, the first edge sealing portion and the second edge sealing portion are an integrally formed structure.

[0009] Furthermore, the transition portion, the first edge sealing portion and the second edge sealing portion are made of rubber material.

[0010] Furthermore, the transition portion, the first edge sealing portion and the second edge sealing portion are all hollow.

[0011] Furthermore, the top surface of the first edge sealing portion abuts against the bottom surface of the stop ring.

[0012] Furthermore, the thickness of the second edge sealing portion is the same as the thickness of the first edge sealing portion; and the thickness of the first edge sealing portion is smaller than the thickness of the transition portion.

[0013] Furthermore, a plurality of convex rings are arranged on the inner annular surface of the second edge sealing portion.

[0014] Furthermore, the convex ring extends to just below the vent hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] By setting a threaded barrel, a quick connection between the filter and the vacuum cover is achieved;

[0017] By setting a sealing structure on the threaded barrel, the sealing effect is achieved while reducing the difficulty of assembly;

[0018] The sealing effect is further enhanced by providing a convex ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a structural schematic diagram of a filter in the prior art;

[0021] Figure 2 A three-dimensional diagram of the best embodiment of the vacuum pump filter with a quick-connect assembly of the utility model;

[0022] Figure 3 It is a three-dimensional cross-sectional view of the best embodiment of the quick-connect assembly of the utility model;

[0023] Figure 4 A three-dimensional diagram of the best embodiment of the sealing structure of the utility model;

[0024] Figure 5 It is a three-dimensional cross-sectional view of the optimal embodiment of the stop ring and the ring groove of the utility model;

[0025] Figure 6 It is a three-dimensional cross-sectional view of the optimal embodiment of the sealing structure of the utility model.

[0026] Among them, 100, filter body; 101, connection port; 200, quick-connect assembly; 201, threaded barrel; 202, stop ring; 203, ring groove; 204, sealing structure; 2041, transition part; 2042, first edge sealing part; 2043, second edge sealing part; 2044, convex ring; 205, vent hole. DETAILED DESCRIPTION

[0027] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0028] Embodiment 1

[0029] See also Figure 2 Combined with Figure 3 , Figure 2 A three-dimensional diagram of the best embodiment of the vacuum pump filter with a quick-connect assembly of the utility model; Figure 3 1 is a three-dimensional cross-sectional view of the optimal embodiment of the quick-connect assembly of the utility model. Figures 2 to 3 As shown, at least one embodiment provides a filter for a vacuum pump with a quick-connect assembly, comprising: a filter body 100; and a quick-connect assembly 200 is provided on the filter body 100 through a connection port 101; wherein the quick-connect assembly 200 comprises a threaded barrel 201; the threaded barrel 201 is fixed on the connection port 101, and a vent hole 205 is provided at the center of the threaded barrel 201, and a thread groove is provided on the inner wall of the vent hole 205. An annular groove 203 is provided at the bottom of the threaded barrel 201; wherein a sealing structure 204 is provided in the annular groove 203; wherein a portion of the sealing structure 204 extends into the vent hole 205.

[0030] Please continue reading Figure 3 Combined with Figure 5 , Figure 5 This is a three-dimensional cross-sectional view of the optimal embodiment of the stop ring and the ring groove of the utility model. Figure 3 and Figure 5As shown, a plurality of arc grooves are formed on the inner wall of the vent hole 205 near the top, wherein a portion of the sealing structure 204 extends through the arc grooves into the vent hole 205. A stop ring 202 is installed on the top of the threaded barrel 201, wherein the bottom surface of the stop ring 202 abuts against a portion of the top surface of the sealing structure 204.

[0031] Please continue reading Figure 3 Combined with Figures 4 to 6 , Figure 4 This is a stereogram of the best embodiment of the sealing structure of the utility model. Figure 6 This is a three-dimensional cross-sectional view of the best embodiment of the sealing structure of the utility model. Figures 3 to 6 As shown, the sealing structure 204 includes a transition portion 2041; a first edge sealing portion 2042 disposed on the top surface of the transition portion 2041 and a second edge sealing portion 2043 disposed on the bottom surface of the transition portion 2041; wherein the transition portion 2041, the first edge sealing portion 2042 and the second edge sealing portion 2043 are an integrally formed structure. The transition portion 2041, the first edge sealing portion 2042 and the second edge sealing portion 2043 are made of rubber. The transition part 2041, the first edge sealing part 2042 and the second edge sealing part 2043 are all hollow. When the top and bottom surfaces of the first edge sealing part 2042 and the second edge sealing part 2043 are squeezed, their side surfaces will bulge out and press against the side wall of the connector of the vacuum pump, thereby achieving the effect of sealing the upper and lower threads. Specifically, when the connector with threads on the vacuum pump rotates and extends into the threaded barrel 201, when the connector is installed in place, the top surface of the connector squeezes the bottom surface of the first edge sealing part 2042, and at this time, the bottom surface of the second edge sealing part 2043 is squeezed against the outer wall of the vacuum pump. The first edge sealing part 2042 seals the gap between the thread groove strip at the top of the connector and the thread groove of the threaded barrel 201, and the second edge sealing part 2043 seals the gap between the bottom thread groove and the thread strip. The top surface of the first edge sealing part 2042 is against the bottom surface of the stop ring 202. The thickness of the second edge sealing portion 2043 is the same as the thickness of the first edge sealing portion 2042 ; and the thickness of the first edge sealing portion 2042 is smaller than the thickness of the transition portion 2041 .

[0032] Embodiment 2

[0033] See also Figure 2 Combined with Figure 3 .like Figures 2 to 3As shown, at least one embodiment provides a filter for a vacuum pump with a quick-connect assembly, comprising: a filter body 100; and a quick-connect assembly 200 is provided on the filter body 100 through a connection port 101; wherein the quick-connect assembly 200 comprises a threaded barrel 201; the threaded barrel 201 is fixed on the connection port 101, and a vent hole 205 is provided at the center of the threaded barrel 201, and a thread groove is provided on the inner wall of the vent hole 205. An annular groove 203 is provided at the bottom of the threaded barrel 201; wherein a sealing structure 204 is provided in the annular groove 203; wherein a portion of the sealing structure 204 extends into the vent hole 205.

[0034] Please continue reading Figure 3 Combined with Figure 5 .like Figure 3 and Figure 5 As shown, a plurality of arc grooves are formed on the inner wall of the vent hole 205 near the top, wherein a portion of the sealing structure 204 extends through the arc grooves into the vent hole 205. A stop ring 202 is installed on the top of the threaded barrel 201, wherein the bottom surface of the stop ring 202 abuts against a portion of the top surface of the sealing structure 204.

[0035] Please continue reading Figure 3 Combined with Figures 4 to 6 .like Figures 3 to 6 As shown, the sealing structure 204 includes a transition portion 2041; a first edge sealing portion 2042 disposed on the top surface of the transition portion 2041 and a second edge sealing portion 2043 disposed on the bottom surface of the transition portion 2041; wherein the transition portion 2041, the first edge sealing portion 2042 and the second edge sealing portion 2043 are an integrally formed structure. The transition portion 2041, the first edge sealing portion 2042 and the second edge sealing portion 2043 are made of rubber. The transition part 2041, the first edge sealing part 2042 and the second edge sealing part 2043 are all hollow. When the top surface and the ground surface of the first edge sealing part 2042 and the second edge sealing part 2043 are squeezed, their sides will bulge out and press against the side wall of the connector of the vacuum pump, thereby achieving the effect of sealing the upper and lower threads. Specifically, when the connector with threads on the vacuum pump rotates and extends into the threaded barrel 201, when the connector is installed in place, the top surface of the connector squeezes the bottom surface of the first edge sealing part 2042, and at this time, the bottom surface of the second edge sealing part 2043 is squeezed against the outer wall of the vacuum pump. The first edge sealing part 2042 seals the gap between the thread groove strip at the top of the connector and the thread groove of the threaded barrel 201, and the second edge sealing part 2043 seals the gap between the bottom thread groove and the thread strip. The top surface of the first edge sealing part 2042 is against the bottom surface of the stop ring 202. The thickness of the second edge sealing portion 2043 is the same as the thickness of the first edge sealing portion 2042 ; and the thickness of the first edge sealing portion 2042 is smaller than the thickness of the transition portion 2041 .

[0036] Please continue reading Figure 6 .like Figure 6 As shown, a plurality of convex rings 2044 are provided on the inner ring surface of the second sealing edge portion 2043. The convex ring 2044 extends to the right below the vent hole 205. When the connector on the vacuum pump is screwed into the threaded barrel 201, the convex ring 2044 and the outer leakage edge seam of the connector are abutted against each other, and the plurality of convex rings 2044 abut against each other, achieving a multiple sealing effect, further enhancing the sealing strength of the sealing structure.

[0037] To summarize, by providing the threaded barrel 201, a quick connection between the filter and the vacuum cover is achieved, thereby reducing the difficulty of removing and replacing the filter; by providing the sealing structure 204 on the threaded barrel 201, when the connector on the vacuum pump is extended into the threaded barrel 201, it can be directly rotated and connected; after being rotated into place, the first sealing edge 2042 and the second sealing edge 2043 respectively seal the two ends of the connector, thereby achieving a sealing effect while reducing the difficulty of assembly; in addition, by providing the convex ring 2044, a multi-ring sealing effect is achieved between the joint seam of the connector and the threaded barrel 201, thereby further enhancing the sealing effect.

[0038] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A filter for a vacuum pump with a quick-connect assembly, characterized in that: include: a filter body (100); and The filter body (100) is provided with a quick-connect assembly (200) via a connection port (101); wherein The quick-connect assembly (200) comprises a threaded barrel (201); and A vent hole (205) is provided at the center of the threaded barrel (201), and a ring groove (203) is provided at the bottom of the threaded barrel (201); A sealing structure (204) is provided in the annular groove (203); wherein A portion of the sealing structure (204) extends into the vent hole (205).

2. The vacuum pump filter with a quick-connect assembly (200) according to claim 1, characterized in that: The inner wall of the vent hole (205) near the top is provided with a plurality of arc-shaped grooves; Part of the sealing structure (204) passes through the arc-shaped groove and extends into the vent hole (205).

3. The vacuum pump filter with a quick-connect assembly (200) as claimed in claim 2, characterized in that: A stop ring (202) is installed on the top of the threaded cylinder (201); The bottom surface of the stop ring (202) abuts against a portion of the top surface of the sealing structure (204).

4. The vacuum pump filter with a quick-connect assembly (200) as claimed in claim 3, characterized in that: The sealing structure (204) comprises a transition portion (2041); and A first edge sealing portion (2042) arranged on the top surface of the transition portion (2041) and a second edge sealing portion (2043) arranged on the bottom surface of the transition portion (2041); wherein The transition portion (2041), the first edge sealing portion (2042) and the second edge sealing portion (2043) are an integrally formed structure.

5. The vacuum pump filter with a quick-connect assembly (200) as claimed in claim 4, characterized in that: The transition portion (2041), the first edge sealing portion (2042) and the second edge sealing portion (2043) are made of rubber material.

6. The vacuum pump filter with a quick-connect assembly (200) as claimed in claim 5, characterized in that: The transition portion (2041), the first edge sealing portion (2042) and the second edge sealing portion (2043) are all hollow.

7. The vacuum pump filter with a quick-connect assembly (200) as claimed in claim 6, characterized in that: The top surface of the first edge sealing portion (2042) abuts against the bottom surface of the stop ring (202).

8. The filter for a vacuum pump with a quick-connect assembly (200) as claimed in claim 7, characterized in that: The thickness of the second edge sealing portion (2043) is the same as the thickness of the first edge sealing portion (2042); and The thickness of the first edge sealing portion (2042) is smaller than the thickness of the transition portion (2041).

9. The filter for a vacuum pump with a quick-connect assembly (200) according to any one of claims 4 to 8, characterized in that: A plurality of convex rings (2044) are arranged on the inner annular surface of the second edge sealing portion (2043).

10. The vacuum pump filter with a quick-connect assembly (200) according to claim 9, characterized in that: The convex ring (2044) extends to just below the vent hole (205).

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