CN212177413U

CN212177413U - Screw pump oil production sealing device

Info

Publication number: CN212177413U
Application number: CN202020933480.8U
Authority: CN
Inventors: 董鹏; 朱立胜; 张帆; 王芳; 张晓静; 李炎; 王娟; 张亮; 苟枫凯; 卢建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-12-18
Anticipated expiration: 2030-05-28

Abstract

The utility model relates to the technical field of screw pump sealing devices, in particular to a screw pump oil extraction sealing device, which comprises a sealing element, wherein the bottom of the sealing element is fixedly provided with an upper ring sleeve, the outer side wall of the upper ring sleeve is provided with a plurality of grooves, the two sides of the groove are both provided with sliding grooves, the sliding grooves at the two sides are both provided with sliding blocks in a sliding way, the grooves are both provided with blades which are in an arc shape, the upper end and the lower end of one side of each blade, which is positioned in the groove, are, through the arrangement of the upper ring sleeve, the groove, the chute, the slide block, the blade and the spring and the cooperation of the rotary sealing element, the blade can clean the impurities such as rust spots, ash residues and the like on the inner surface of the outer sleeve, and the blade can move along the radial direction of the outer side sleeve, the blade has radial pressure on the outer side sleeve by virtue of the elasticity of the spring, and the blade can realize the cleaning function and can also be adjusted to adapt to the outer side sleeves with different specifications according to the inner diameter of the outer side sleeve.

Description

Screw pump oil production sealing device

Technical Field

The utility model relates to a screw pump sealing device technical field especially relates to a screw pump oil recovery sealing device.

Background

The screw pump oil extraction sealing device is used for preventing liquid or solid from leaking out of a screw pump or preventing impurities such as dust from entering the screw pump, and in use of an existing screw pump rotary sealing element, due to the fact that the cleanliness of an outer sleeve matched with the sealing element is poor, pollutants or burrs such as rusty spots, ash residues and the like exist on the surface of the outer sleeve, the sealing element is difficult to assemble, the sealing performance is poor, and accordingly leakage occurs.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that the screw pump oil recovery sealing device does not have the function of clearing up the epaxial impurity among the prior art, and the screw pump oil recovery sealing device who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a screw pump oil recovery sealing device, including the sealing member, sealing member bottom fixed mounting has last ring cover, the internal diameter of going up ring cover and sealing member equals, the external diameter of going up the ring cover is less than the external diameter of sealing member, go up ring cover lateral wall and seted up a plurality of grooves, the ring overlaps into the circumference array distribution more than a plurality of grooves are all, the spout has all been seted up to the inslot both sides, it is provided with the slider all to slide in the spout of both sides, the inslot all is equipped with the blade, the blade becomes circular-arcly, the crooked direction homogeneous phase of a plurality of blades, the cutting edge end of blade extends to the sealing member outside, the blade both sides respectively with slider fixed connection, the blade can move in the inslot, the equal fixed mounting in upper and lower extreme of one side.

Preferably, one side of each blade is provided with a cotton block, each cotton block is arc-shaped, and each cotton block is located on the outer side of each blade.

Preferably, go up ring cover bottom fixed mounting and have lower ring cover, lower ring cover and last ring cover size equal, the holding tank has been seted up at lower ring cover top, and the holding tank is the ring form.

Preferably, the sealing element is in threaded connection with the upper annular sleeve, and the upper annular sleeve is in threaded connection with the lower annular sleeve.

Preferably, the cotton block is bonded to the blade.

The utility model provides a pair of screw pump oil recovery sealing device, beneficial effect lies in: through setting up ring cover, groove, spout, slider, blade and spring to cooperation rotary seal makes the blade clear up the interior surface of outside sleeve pipe pollutant or burr like impurity such as rust spot, lime-ash, and the blade can be along the sheathed tube radial movement in outside, and the blade has a radial pressure to the outside sleeve pipe with the help of the elasticity of spring, realizes that the blade both can realize clean function and also can adapt to the outside sleeve pipe of different specifications according to the sheathed tube internal diameter size adjusting position in outside.

Drawings

Fig. 1 is the structural schematic diagram of the screw pump oil production sealing device provided by the utility model.

Fig. 2 is a front view of the screw pump oil extraction sealing device provided by the utility model.

Fig. 3 is a top view of the screw pump oil production sealing device provided by the utility model.

Fig. 4 is the structural schematic diagram of the upper ring sleeve of the screw pump oil extraction sealing device provided by the utility model.

Fig. 5 is an enlarged schematic view of the blade in fig. 4 of the screw pump oil extraction sealing device provided by the present invention.

In the figure: sealing member 1, go up ring cover 2, groove 3, spout 4, slider 5, blade 6, spring 7, cotton piece 8, lower ring cover 9, holding tank 10.

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.

Example 1:

referring to fig. 1-5, a screw pump oil recovery sealing device, including sealing member 1, 1 bottom fixed mounting of sealing member has last ring cover 2, the internal diameter of going up ring cover 2 and sealing member 1 equals, the external diameter of going up ring cover 2 is less than the external diameter of sealing member 1, go up ring cover 2 lateral wall and seted up a plurality of grooves 3, ring cover 2 becomes the circumference array distribution more than a plurality of grooves 3 are all, spout 4 has all been seted up to inslot 3 both sides, it is provided with slider 5 all to slide in the spout 4 of both sides, all be equipped with blade 6 in the groove 3, blade 6 becomes circular-arcly, the crooked direction homogeneous phase of a plurality of blades 6, the cutting edge end of blade 6 extends to the sealing member 1 outside, blade 6 both sides respectively with slider 5 fixed connection, blade 6 can remove in groove 3, the equal fixed mounting of the last lower extreme of one side that blade 6 is located groove 3 has spring 7, spring 7 one. When the screw pump rotary sealing element is installed in the matched outer casing, the upper annular sleeve 2, the groove 3, the sliding groove 4, the sliding block 5, the blade 6 and the spring 7 are arranged, and the rotary sealing element 1 is matched to enable the blade 6 to clean impurities such as rust spots and ash residues on the inner surface of the outer casing, the blade 6 can move along the radial direction of the outer casing, the blade 6 has radial pressure on the outer casing by means of the elastic force of the spring 7, and the blade 6 can achieve a cleaning function and can also be adjusted to adapt to the outer casings of different specifications according to the inner diameter of the outer casing.

One side of a plurality of blades 6 all is equipped with cotton piece 8, and cotton piece 8 is circular-arc, and cotton piece 8 is located the outside of blade 6. The cotton block 8 is bonded to the blade 6. Through setting up cotton piece 8 and cooperation counter rotation sealing member 1, realize wiping to outside sleeve pipe inner wall to improve the cleanliness of outside sleeve pipe inner wall.

Example 2:

referring to fig. 1 to 5, as another preferred embodiment of the present invention, the difference from embodiment 1 is that a lower circular sleeve 9 is fixedly installed at the bottom end of an upper circular sleeve 2, the lower circular sleeve 9 and the upper circular sleeve 2 have the same size, a storage tank 10 is disposed at the top of the lower circular sleeve 9, and the storage tank 10 is circular. Since the contaminants cleaned by the blade 6 and the cotton block 8 remain in the outer casing without being collected, the impurities on the inner wall of the outer casing are collected by providing the storage tank 10. The sealing element 1 is in threaded connection with the upper annular sleeve 2, and the upper annular sleeve 2 is in threaded connection with the lower annular sleeve 9; considering the maintenance and the change of sealing member 1, through setting up for threaded connection between sealing member 1 and the last ring cover 2, convenient to detach sealing member 1 is convenient for take out lower ring cover 9 and clear up the pollutant that deposits up in the holding tank 10 through setting up for threaded connection between ring cover 2 and the lower ring cover 9.

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. The screw pump oil extraction sealing device comprises a sealing element (1) and is characterized in that an upper ring sleeve (2) is fixedly installed at the bottom of the sealing element (1), the inner diameters of the upper ring sleeve (2) and the sealing element (1) are equal, the outer diameter of the upper ring sleeve (2) is smaller than that of the sealing element (1), a plurality of grooves (3) are formed in the outer side wall of the upper ring sleeve (2), the grooves (3) are distributed in a circumferential array mode through the upper ring sleeve (2), sliding grooves (4) are formed in the two sides of each groove (3), sliding blocks (5) are arranged in the sliding grooves (4) in the two sides in a sliding mode, blades (6) are arranged in the grooves (3), the blades (6) are arc-shaped, the bending directions of the blades (6) are the same, the blade ends of the blades (6) extend to the outer side of the sealing element (1), and the two sides of the blades (6) are fixedly connected with the sliding blocks (5) respectively, the blade (6) can move in the groove (3), the upper end and the lower end of one side of the blade (6) in the groove (3) are fixedly provided with springs (7), and one ends of the springs (7) are fixedly connected with the upper ring sleeve (2).

2. A screw pump oil extraction sealing device according to claim 1, wherein a cotton block (8) is arranged on one side of each of the plurality of blades (6), the cotton block (8) is arc-shaped, and the cotton block (8) is positioned outside the blades (6).

3. A screw pump oil recovery sealing device according to claim 1, characterized in that a lower annular sleeve (9) is fixedly mounted at the bottom end of the upper annular sleeve (2), the lower annular sleeve (9) and the upper annular sleeve (2) are equal in size, a storage tank (10) is provided at the top of the lower annular sleeve (9), and the storage tank (10) is annular.

4. A screw pump oil recovery sealing device according to claim 3, characterized in that the sealing element (1) is in threaded connection with the upper annular sleeve (2), and the upper annular sleeve (2) is in threaded connection with the lower annular sleeve (9).

5. A screw pump oil recovery sealing device according to claim 2, characterised in that the cotton block (8) is bonded to the blade (6).