CN211738329U

CN211738329U - Sealing structure for vacuum pump

Info

Publication number: CN211738329U
Application number: CN202020131727.4U
Authority: CN
Inventors: 刘长林
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-10-23
Anticipated expiration: 2030-01-20

Abstract

The utility model discloses a seal structure for vacuum pump, the electric iron comprises a pump head, the one end surface of pump head is equipped with inside recess, the terminal surface of pump head is equipped with the annular seal groove, the side fixedly connected with sealing washer of annular seal groove, the terminal surface of pump head is equipped with connecting screw hole, the terminal surface fixed mounting of pump head has the connecting pipe, the one end surface compression joint of connecting pipe is in the side of sealing washer, the inside clearing hole of connecting pipe is rotated and is installed connecting bolt, connecting bolt's end department threaded connection in connecting screw hole's side, the inside of connecting pipe is equipped with the cylinder cavity, a side surface of cylinder cavity is equipped with horizontal pipe, the side fixed connection of horizontal pipe is in a side surface of connecting pipe, can improve the convenience and the stability of using greatly like this.

Description

Sealing structure for vacuum pump

Technical Field

The utility model relates to a seal structure field, more specifically say, relate to a seal structure for vacuum pump.

Background

In the use of vacuum pump, in order to guarantee internal stability, need use seal structure to install the pipeline, and then can stably dock to the pump head.

But current seal structure is mostly direct to be connected to sealed the pad between the two, like this at the installation location back, sealed pad can't stable positioning, and then influence sealed stability easily because pressure is unbalanced and dislocation, can only seal at outside terminal surface simultaneously, when needing to maintain the pipeline, can't directly seal from inside, and adaptability is poor, remains to be improved.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, an object of the utility model is to provide a seal structure for vacuum pump, install the sealing washer through setting up the annular seal groove on the pump head, can the edgewise location, avoid droing, and then compress tightly the installation connecting pipe through a plurality of connecting bolt, can guarantee sealed stability, install the accessory plate that has the supplementary sealed pad through inside adjusting threaded rod simultaneously, can directly seal from inside when necessary, do benefit to and maintain the exterior structure, can improve the convenience and the stability of use greatly like this, guarantee the security.

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides a seal structure for vacuum pump, includes the pump head, the one end surface of pump head is equipped with inside recess, the terminal surface of pump head is equipped with the annular seal groove, the side fixedly connected with sealing washer of annular seal groove, the terminal surface of pump head is equipped with connecting screw hole, the terminal surface fixed mounting of pump head has the connecting pipe, the one end surface compression joint in the side of sealing washer of connecting pipe, the inside clearing hole of connecting pipe is rotated and is installed connecting bolt, connecting bolt's end department threaded connection in connecting screw hole's side, the inside of connecting pipe is equipped with the cylinder cavity, a side surface of cylinder cavity is equipped with horizontal pipe, a side fixed connection in a side surface of connecting pipe of horizontal pipe.

Further, the interior hexagonal head is installed in the both ends rotation of cylinder cavity, the surperficial fixedly connected with sealing ring of interior hexagonal head through including the hexagonal head side joint sealing ring, can guarantee the leakproofness of pivoted position, avoids leaking, does benefit to the use.

Furthermore, the other end fixedly connected with adjusting threaded rod of interior hexagonal head, adjusting threaded rod's the other end is located the both sides position of inside recess, connects adjusting threaded rod through interior hexagonal head, can follow the internal regulation and seal, and is convenient high-efficient.

Furthermore, the surface of the adjusting threaded rod is connected with an auxiliary plate through an adjusting threaded hole in a threaded manner, the side face of the auxiliary plate is connected to the side face of the cylindrical cavity in a sliding manner, and the auxiliary plate is connected with the adjusting threaded rod in a threaded manner, so that direct adjustment can be performed from the inside of the cylindrical cavity, interference is avoided, and stability and high efficiency are achieved.

Furthermore, an opening groove is formed in the surface of one side of the auxiliary plate, an auxiliary sealing gasket is fixedly connected to the side face of the opening groove, the auxiliary sealing gasket is installed at the lower end of the auxiliary plate, the auxiliary sealing gasket can be compressed into the inner groove to be directly sealed, and the auxiliary sealing gasket is convenient and stable and is beneficial to adjustment and use.

Furthermore, one side surface of the auxiliary sealing gasket is provided with a through hole, the surface of the through hole is connected to the surface of the opening groove through a compression screw in a threaded manner, the auxiliary sealing gasket is connected through the compression screw, the connection stability can be guaranteed, and the falling and damage are avoided.

Furthermore, the number of the connecting bolts is six, and the connecting bolts are uniformly connected to the end face of the connecting pipe at equal angles.

Compared with the prior art, the utility model has the advantages of:

(1) this scheme installs the sealing washer through setting up the annular seal groove on the pump head, can the edgewise location, avoids droing, and then compresses tightly the installation connecting pipe through a plurality of connecting bolt, can guarantee sealed stability.

(2) Through including hexagon head side connection sealing ring, can guarantee the leakproofness of rotational position, avoid leaking, do benefit to the use.

(3) The adjusting threaded rod is connected through the inner hexagonal head, so that the sealing can be adjusted from the inside, and the sealing is convenient and efficient.

(4) Through adjusting threaded rod threaded connection accessory plate, can follow the inside direct adjustment of cylinder cavity, avoid interfering, it is stable high-efficient.

(5) Through at the supplementary sealed pad of accessory plate lower extreme installation, can compress tightly direct sealed in the inside recess, convenient stability does benefit to the regulation and uses.

(6) The auxiliary sealing gasket is connected through the compression screw, so that the connection stability can be ensured, and the falling and damage can be avoided.

Drawings

Fig. 1 is an external perspective view of the overall structure of the present invention;

fig. 2 is a schematic internal cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the connection of the auxiliary plate shown in FIG. 2;

fig. 4 is a bottom schematic view of the auxiliary plate of the present invention.

The reference numbers in the figures illustrate:

1 pump head, 11 internal grooves, 12 annular sealing grooves, 13 sealing rings, 14 connecting threaded holes, 15 connecting pipes, 16 connecting bolts, 17 cylindrical cavities, 18 transverse pipes, 2 hexagon socket heads, 21 sealing rings, 22 adjusting threaded rods, 23 adjusting threaded holes, 24 auxiliary plates, 25 open grooves, 26 auxiliary sealing gaskets, 27 through holes and 28 compression screws.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-4, a sealing structure for a vacuum pump includes a pump head 11, referring to fig. 1 and 2, an internal groove 11 is formed on a surface of one end of the pump head 1, an annular sealing groove 12 is formed on an end surface of the pump head 1, a sealing ring 13 is fixedly connected to a side surface of the annular sealing groove 12, the sealing ring 13 can be positioned inside, and then pressed from an upper end through a connecting pipe 15, so that connection stability can be ensured, the pump head 1 is prevented from being damaged and falling off, sealing effect can be improved, and use is facilitated, a connection threaded hole 14 is formed in the end surface of the pump head 1, a connecting pipe 15 is fixedly installed on the end surface of the pump head 1, the surface of one end of the connecting pipe 15 is pressed and connected to the side surface of the sealing ring 13, a connecting bolt 16 is rotatably installed in an internal through hole of the connecting pipe, the connecting pipe 15 is provided with a cylindrical cavity 17 inside, a lateral pipe 18 is provided on one side surface of the cylindrical cavity 17, and the lateral surface of the lateral pipe 18 is fixedly connected to one side surface of the connecting pipe 15.

Referring to fig. 3 and 4, the two ends of the cylindrical cavity 17 are rotatably installed with hexagon socket heads 2, the surface of the hexagon socket head 2 is fixedly connected with a sealing ring 21, which can ensure the sealing performance of the rotating position and avoid leakage, the other end of the hexagon socket head 2 is fixedly connected with an adjusting threaded rod 22, the other end of the adjusting threaded rod 22 is located at the two sides of the internal groove 11, the surface of the adjusting threaded rod 22 is in threaded connection with an auxiliary plate 24 through an adjusting threaded hole 23, the auxiliary plate 24 can be driven to move up and down by the adjusting threaded rod 22, when the upper end is reached, the pump can be normally used, and after the bottom enters the internal groove 11, the auxiliary sealing gasket 26 can be pressed to seal the outlet of the pump head 1, and then the pump head is completely sealed, so that the transverse pipe 18 can be cut and welded outside, the safety of use and maintenance is, one side surface of accessory plate 24 is equipped with open groove 25, and open groove 25's side fixedly connected with auxiliary sealing pad 26, and one side surface of auxiliary sealing pad 26 is equipped with through-hole 27, and the surface of through-hole 27 passes through housing screw 28 threaded connection in open groove 25 on the surface, connects the location through housing screw 28, can compress tightly auxiliary sealing pad 26, and then improves connection stability, avoids droing, guarantees sealing stability.

When the auxiliary plate type horizontal pipe welding machine is used, the connecting pipe 15 can be installed on the pump head 1 through the connecting bolt 16, the sealing ring 13 can be pressed to conduct sealing, the operation is stable, meanwhile, the auxiliary plate 24 is installed inside the cylindrical cavity 17, when welding maintenance is needed to be conducted on the external horizontal pipe 18, in order to avoid influencing the internal structure, the hexagon socket heads 22 on two sides can be rotated from the upper end, the adjusting threaded rod 22 can be driven to rotate, the auxiliary plate 24 can be driven to move up and down through the adjusting threaded rod 22, when the upper end is reached, normal use can be achieved, after the bottom enters the internal groove 11, the auxiliary sealing gasket 26 can be pressed, the outlet of the pump head 1 is sealed, complete sealing is achieved, the horizontal pipe 18 can be cut and welded outside, and safety of use.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a seal structure for vacuum pump, includes pump head (1), its characterized in that: an internal groove (11) is arranged on the surface of one end of the pump head (1), an annular sealing groove (12) is arranged on the end surface of the pump head (1), the side surface of the annular sealing groove (12) is fixedly connected with a sealing ring (13), the end surface of the pump head (1) is provided with a connecting threaded hole (14), a connecting pipe (15) is fixedly arranged on the end face of the pump head (1), one end surface of the connecting pipe (15) is tightly pressed and connected with the side face of the sealing ring (13), a connecting bolt (16) is rotatably arranged in the connecting pipe (15) through a hole, the end of the connecting bolt (16) is in threaded connection with the side surface of the connecting threaded hole (14), a cylindrical cavity (17) is arranged in the connecting pipe (15), a transverse pipe (18) is arranged on the surface of one side of the cylindrical cavity (17), the lateral surface of the transverse pipe (18) is fixedly connected with one lateral surface of the connecting pipe (15).

2. A sealing structure for a vacuum pump according to claim 1, characterized in that: the two ends of the cylindrical cavity (17) are rotatably provided with the hexagon socket head (2), and the surface of the hexagon socket head (2) is fixedly connected with a sealing ring (21).

3. A sealing structure for a vacuum pump according to claim 2, characterized in that: the other end fixedly connected with of interior hexagonal head (2) adjusts threaded rod (22), the other end of adjusting threaded rod (22) is located the both sides position of inside recess (11).

4. A sealing structure for a vacuum pump according to claim 3, wherein: the surface of the adjusting threaded rod (22) is in threaded connection with an auxiliary plate (24) through an adjusting threaded hole (23), and the side surface of the auxiliary plate (24) is connected with the side surface of the cylindrical cavity (17) in a sliding mode.

5. The seal structure for a vacuum pump according to claim 4, wherein: an opening groove (25) is formed in the surface of one side of the auxiliary plate (24), and an auxiliary sealing gasket (26) is fixedly connected to the side face of the opening groove (25).

6. The seal structure for a vacuum pump according to claim 5, wherein: one side surface of the auxiliary sealing gasket (26) is provided with a through hole (27), and the surface of the through hole (27) is in threaded connection with the surface of the opening groove (25) through a compression screw (28).

7. A sealing structure for a vacuum pump according to claim 1, characterized in that: six connecting bolts (16) are arranged and are uniformly connected to the end face of the connecting pipe (15) at equal angles.