CN210919392U

CN210919392U - Sealing assembly for vacuum pump

Info

Publication number: CN210919392U
Application number: CN201921986170.6U
Authority: CN
Inventors: 周文菊
Original assignee: Shitong Haitai Pump Industry Tianjin Co ltd
Current assignee: Shitong Haitai Pump Industry Tianjin Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-07-03
Anticipated expiration: 2029-11-18

Abstract

The utility model discloses a seal assembly for vacuum pump relates to vacuum pump technical field. This seal assembly for vacuum pump, including the pump body, one side surface of the pump body is provided with the admission line, and the one end of admission line has external screw thread pipe near the welding of internal diameter edge, and the interior table wall of admission line has first ring board near the welding of one end edge, and the inside of external screw thread pipe is inlayed and is equipped with the joint pipeline. Establish on the internal thread pipe through establishing external screw thread pipe thread cover, thereby the position to the joint pipeline that can be better is fixed, because external screw thread pipe rotates on the internal thread pipe, make the joint pipeline remove in the inside of internal thread pipe, make the sealed pad of ring tightly attached on first ring board, the restoring force through a plurality of springs simultaneously, the sealed pad of messenger ring that can be better is attached on first ring board, can be better carry out the sealed processing to the junction on using, can be stable carry gas on using.

Description

Sealing assembly for vacuum pump

Technical Field

The utility model relates to a vacuum pump technical field specifically is a seal assembly for vacuum pump.

Background

The vacuum pump is a device or equipment for obtaining vacuum by pumping a pumped container by using a mechanical, physical, chemical or physicochemical method, generally speaking, the vacuum pump is a device for improving, generating and maintaining vacuum in a certain closed space by using various methods, and when the vacuum pump is used, gas is often conveyed into the vacuum pump so that the vacuum pump works, but in the prior art, when the gas is conveyed into the vacuum pump, one end of a gas conveying pipeline is directly inserted into a gas inlet on the vacuum pump for gas conveying, because the sealing property between the gas conveying pipeline and the gas inlet is poor, gas leakage is easily caused, gas resources are greatly wasted in use, meanwhile, the vacuum pump generates vibration when in use, and an inserting mode is adopted between the gas conveying pipeline and the gas inlet, so that the connection part is easily loosened, the gas can not be better conveyed in use, and the use of a vacuum pump is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a vacuum pump is with seal assembly, stable being connected between butt joint pipeline that can be better and the admission line is fixed, can be to better sealing process to the junction on using simultaneously.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a seal assembly for vacuum pump, includes the pump body, one side surface of the pump body is provided with the admission line, the one end of admission line has external screw thread pipe near the welding of internal diameter edge, the interior table wall of admission line has first ring plate near the welding of one end edge, the inside of external screw thread pipe is inlayed and is equipped with the joint pipeline, and the one end of joint pipeline extends to the outside of external screw thread pipe, the surface that connects the pipeline is close to one end edge and has seted up circular spout along the circumferencial direction.

Preferably, the inner surface wall of the circular sliding groove is embedded with a second circular ring plate in a sliding manner.

Preferably, the edge is close to one side surface of second ring board and has welded the internal thread pipe along the circumferencial direction, the internal surface wall of internal thread pipe is established with the surface thread cover of external thread pipe.

Preferably, one end of the joint pipeline is connected with an air feeding pipeline.

Preferably, the other end that connects the pipeline has a plurality of springs along the equidistance welding of circumferencial direction, is fixed with the sealed pad of ring between the one end of a plurality of springs, and the surface of one side of the sealed pad of ring is attached with the surface of one side of first ring board.

Preferably, the outer surface of the other side of the annular sealing gasket is adhered with an elastic sealing layer along the circumferential direction close to the edges of the inner diameter and the outer diameter, and one side of the elastic sealing layer is adhered with the other end of the joint pipeline.

Preferably, the rotating handles are welded at the top and the bottom of the internally threaded pipe.

The utility model provides a seal assembly for vacuum pump. The method has the following beneficial effects:

this seal assembly for vacuum pump, insert the inside of internal thread pipe through the one end that will connect the pipeline, rotate through changeing the handlebar, make external screw thread pipe drive second ring board rotate in the inside of circular spout, thereby make external screw thread pipe thread cover establish on internal thread pipe, thereby the position of butt joint pipeline that can be better is fixed, because external screw thread pipe rotates on internal thread pipe, make the joint pipeline remove in the inside of internal thread pipe, make the sealed tight attached of pad on first ring board of ring, the restoring force through a plurality of springs simultaneously, the sealed pad of messenger ring that can be better is attached on first ring board, can be better carry out sealed the processing to the junction on using, can be stable carry gas on using.

Drawings

Fig. 1 is a front sectional view of the present invention;

FIG. 2 is a perspective view of a portion of the intake duct of the present invention;

FIG. 3 is a perspective view of a portion of the joint pipe of the present invention;

fig. 4 is an enlarged view of a portion of a section in fig. 1 according to the present invention.

In the figure: 1. a pump body; 2. an air intake duct; 3. turning a handle; 4. an internally threaded tube; 5. a circular chute; 6. An air supply duct; 7. a joint pipe; 8. a second annular plate; 9. an externally threaded tube; 10. a first annular plate; 11. an annular gasket; 12. a spring; 13. an elastomeric sealing layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a seal assembly for a vacuum pump comprises a pump body 1, wherein an air inlet pipeline 2 is arranged on the outer surface of one side of the pump body 1, the air inlet pipeline 2 is arranged on the pump body 1 and is convenient for conveying gas into the pump body 1, an external threaded pipe 9 is welded at one end of the air inlet pipeline 2 close to the edge of an inner diameter, the external threaded pipe 9 can enable the internal threaded pipe 4 to be sleeved, so that the position of a joint pipeline 7 can be better fixed, a first annular plate 10 is welded at the edge of the inner surface wall of the air inlet pipeline 2 close to one end, the first annular plate 10 is attached to an annular sealing gasket 11, a better pair can be realized, the joint is sealed, the joint pipeline 7 is embedded in the external threaded pipe 9, one end of the joint pipeline 7 extends to the outside of the external threaded pipe 9, the joint pipeline 7 enables an air inlet pipeline 6 to be connected with the air inlet pipeline 2, and is convenient for conveying gas, the outer surface of the joint pipeline 7 is provided with a circular sliding groove 5 along the circumferential direction near one end edge, and the circular sliding groove 5 is formed to enable the second annular plate 8 to stably rotate.

The inner surface wall of the circular chute 5 is embedded with a second circular plate 8 in a sliding way, the second circular plate 8 rotates in the circular chute 5, so that the internal thread pipe 4 can rotate stably, the internal thread pipe 4 is sleeved on the external thread pipe 9 in a threaded manner, the internal thread pipe 4 is welded on the outer surface of one side of the second circular plate 8 close to the edge along the circumferential direction, the internal surface wall of the internal thread pipe 4 is sleeved on the outer surface thread of the external thread pipe 9, the internal thread pipe 4 is sleeved on the external thread pipe 9 in a threaded manner, and then the stability of the joint pipeline 7 can be fixed, the vibration generated in the use of the pump body 1 can not loosen the joint part, so that the gas can be stably conveyed, one end of the joint pipeline 7 is connected with the gas supply pipeline 6, the gas supply pipeline 6 is convenient for conveying the gas, the other end of the joint pipeline 7 is welded with a plurality of springs 12 along the circumferential direction at equal intervals, the position of the annular sealing gasket 11 can be better fixed by the plurality of springs 12, the annular sealing gasket 11 is fixed between one ends of the plurality of springs 12, the outer surface of one side of the annular sealing gasket 11 is attached to the outer surface of one side of the first annular plate 10, the annular sealing gasket 11 is tightly attached to the first annular plate 10, so that the joint can be better sealed, the elastic sealing layer 13 is adhered to the outer surface of the other side of the annular sealing gasket 11 close to the inner diameter edge and the outer diameter edge along the circumferential direction, one side of the elastic sealing layer 13 is adhered to the other end of the joint pipeline 7, the elastic sealing layer 13 can seal the space between the annular sealing gasket 11 and one end of the joint pipeline 7, gas leakage is prevented, the springs 12 inside can be better protected, the rotating handle 3 is welded at the top and the bottom of the internal thread pipe 4, and the rotating handle 3 is rotated by holding the rotating handle, facilitating the rotation of the internally threaded pipe 4.

During the use, through the inside of inserting internal thread pipe 4 with the one end of joint pipeline 7, through rotating 3, make external thread pipe 9 drive second ring board 8 and rotate in the inside of circular spout 5, thereby make external thread pipe 9 thread bush establish on internal thread pipe 4, thereby 7 positions to the joint pipeline that can be better are fixed, because external thread pipe 9 rotates on internal thread pipe 4, make joint pipeline 7 move in the inside of internal thread pipe 4, make the sealed pad 11 of ring tightly attached on first ring board 10, simultaneously through the restoring force of a plurality of springs 12, can be better make sealed pad 11 of ring attached on first ring board 10, can be better carry out sealing process to the junction on using, can be stable carry gas on using.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A seal assembly for a vacuum pump, comprising a pump body (1), characterized in that: an air inlet pipeline (2) is arranged on the outer surface of one side of the pump body (1), an external threaded pipe (9) is welded at one end, close to the inner diameter edge, of the air inlet pipeline (2), and a first circular ring plate (10) is welded at the edge, close to one end, of the inner surface wall of the air inlet pipeline (2);

the inside of external screw thread pipe (9) is inlayed and is equipped with joint pipeline (7), and the one end of joint pipeline (7) extends to the outside of external screw thread pipe (9), circular spout (5) have been seted up along the circumferencial direction near one end edge to the surface of joint pipeline (7).

2. The seal assembly for a vacuum pump of claim 1, wherein: and a second circular ring plate (8) is embedded in the inner surface wall of the circular sliding chute (5) in a sliding manner.

3. A seal assembly for a vacuum pump according to claim 2, wherein: the edge is close to one side surface of second ring board (8) and internal thread pipe (4) have been welded along the circumferencial direction, the internal surface wall of internal thread pipe (4) is established with the surface thread cover of external screw thread pipe (9).

4. The seal assembly for a vacuum pump of claim 1, wherein: one end of the joint pipeline (7) is connected with an air feeding pipeline (6).

5. The seal assembly for a vacuum pump of claim 1, wherein: the other end that connects pipeline (7) has a plurality of springs (12) along the equidistance welding of circumferencial direction, is fixed with the sealed pad of ring (11) between the one end of a plurality of springs (12), and the surface of one side of the sealed pad of ring (11) is attached with the surface of one side of first ring board (10).

6. The seal assembly for a vacuum pump of claim 5, wherein: the outer surface of the other side of the annular sealing gasket (11) is close to the edges of the inner diameter and the outer diameter and is adhered with an elastic sealing layer (13) along the circumferential direction, and one side of the elastic sealing layer (13) is adhered with the other end of the joint pipeline (7).

7. A seal assembly for a vacuum pump according to claim 3, wherein: the top and the bottom of the internal thread pipe (4) are welded with rotating handles (3).