CN216077572U

CN216077572U - Screw vacuum pump capable of cleaning dust

Info

Publication number: CN216077572U
Application number: CN202122645238.8U
Authority: CN
Inventors: 赵彬彬
Original assignee: Shandong Kaine Vacuum Technology Co ltd
Current assignee: Shandong Kaine Vacuum Technology Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-03-18
Anticipated expiration: 2031-11-01

Abstract

The utility model relates to the technical field of screw vacuum pump equipment, in particular to a screw vacuum pump capable of cleaning dust, which comprises a pump body and a connecting pipe, wherein a through pipe is fixedly connected to an air inlet at the front end of the pump body, two limiting rings are fixedly sleeved on the outer pipe surface of the connecting pipe, the pipe diameters of the through pipe and the connecting pipe are the same, a switching mechanism is arranged between the through pipe and the connecting pipe and comprises two circular plates, two pipe grooves are respectively formed in the left and right surfaces of the two circular plates, a rotating mechanism is arranged between the two limiting rings and comprises a circular ring, the circular ring is driven to rotate by rotating a rotating rod and can only rotate but can not move under the limitation of the limiting rings, the circular ring drives a gear I to rotate through a gear II, the gear I drives the two circular plates to rotate through a circular rod, the two circular plates rotate to drive two short pipes to move, and the circular plates are movably attached to the pipe orifices of the through pipe and the connecting pipe in the displacement process to close the through pipe and the connecting pipe, and gas leakage in the through pipe and the connecting pipe in the switching process is avoided.

Description

Screw vacuum pump capable of cleaning dust

Technical Field

The utility model relates to a screw vacuum pump equipment technical field especially relates to a screw vacuum pump that can clear up dust.

Background

The screw vacuum pump is an air extraction device which utilizes a pair of screws to synchronously rotate in a high speed and reverse direction in a pump shell to generate air suction and exhaust functions, is a renewal product of an oil seal type vacuum pump, can extract gas occasions containing a large amount of water vapor and a small amount of dust, and is widely applied to the fields of enterprises with higher requirements on clean vacuum, such as domestic pharmacy, chemical industry, semiconductors and the like;

as disclosed in the chinese patent: screw vacuum pump, publication No.: CN202900656U, compact structure, reasonable design, effectively reducing noise caused by high-speed rotation of the screw rod during actual work, and improving the vacuum degree of the vacuum pump by changing the inclination angle of the screw rod;

however, in a gas environment with more dust, the dust particles are small, the diffusion capacity is high, the relative surface area is large, the adhesive force is strong, and in the operation process of the pump, the dust can enter a lubricating oil cavity through diffusion, damage a lubricating system of the pump, adhere to the surface of a sealing part, cause abrasion of the sealing part and failure of the sealing performance, so that the screw vacuum pump capable of cleaning the dust is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a screw vacuum pump capable of cleaning dust, so as to solve the problems in the background technology.

The embodiment of the application adopts the following technical scheme:

the utility model provides a can clear up screw vacuum pump of dust, includes the pump body and connecting pipe, the air inlet department fixedly connected with siphunculus of pump body front end, two spacing rings have been cup jointed to the outer pipe face of connecting pipe is fixed, the pipe diameter of siphunculus and connecting pipe is the same, be provided with switching mechanism between siphunculus and the connecting pipe, switching mechanism includes two plectanes, two pipe casing, two have all been seted up to the left and right sides of plectane be provided with slewing mechanism between the spacing ring, slewing mechanism includes the ring, two the fixed pole that has cup jointed of mid portion of plectane, the right-hand member fixedly connected with gear of pole one, the both ends of pole all are provided with the connecting block, two the pole groove has all been seted up to the lower extreme of connecting block, two the connecting block is rotated through the both ends of controlling of two pole grooves and pole respectively and is connected.

Preferably, the upper ends of the two connecting blocks are fixedly connected with clamping rings, and the two clamping rings are respectively and fixedly sleeved with the outer pipe surfaces of the through pipe and the connecting pipe;

preferably, short pipes are fixedly sleeved in the two pipe grooves at the upper end, the same short pipe is fixedly sleeved in the two pipe grooves at the lower end, filters for filtering dust are movably arranged in the two short pipes, and the pipe diameters of the short pipes and the through pipe are the same;

preferably, the outer ring surface of the circular ring is fixedly connected with a group of equidistant rotating rods, the left end of the outer ring surface of the circular ring is fixedly sleeved with a second gear, and the second gear is meshed with the first gear;

preferably, the inner ring surface of the circular ring is movably attached to the outer pipe surface of the connecting pipe, and the connecting pipe, the through pipe and the short pipe located at the upper end are communicated with each other.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

firstly, an operator drives the circular ring to rotate through rotating the rotating rod, the circular ring can only rotate and cannot move under the limitation of the limiting ring, the circular ring rotates through the gear II to drive the gear I to rotate, the gear I rotates through the circular rod to drive the two circular plates to rotate, the two circular plates rotate to drive the two short pipes to move, the circular plates are movably attached to the pipe orifices of the through pipe and the connecting pipe in the moving process to close the through pipe and the connecting pipe, gas leakage in the through pipe and the connecting pipe in the switching process is avoided, and safety is improved;

and secondly, after one short pipe is communicated with the through pipe and the connecting pipe, the other short pipe can be cleaned and replaced, the normal work of the pump body is not influenced, the working efficiency is improved, the pre-cleaning effect is realized on dispersed dust in gas entering the pump body, and the damage to the pump body is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the stop collar of the present invention;

FIG. 3 is a schematic view of the structure of the turning bar of the present invention;

FIG. 4 is a schematic view showing the construction of the short pipe according to the present invention.

In the figure: 1. a pump body; 2. a circular plate; 3. a rotating rod; 4. pipe passing; 5. a limiting ring; 6. a connecting pipe; 7. a second gear; 8. a circular ring; 9. a round bar; 10. connecting blocks; 11. a snap ring; 12. a short pipe; 13. a rod groove; 14. a first gear; 15. and (4) a pipe groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Referring to fig. 1-4, a screw vacuum pump capable of cleaning dust comprises a pump body 1 and a connecting pipe 6, wherein a through pipe 4 is fixedly connected to an air inlet at the front end of the pump body 1, two limit rings 5 are fixedly sleeved on the outer pipe surface of the connecting pipe 6, the pipe diameters of the through pipe 4 and the connecting pipe 6 are the same, a switching mechanism is arranged between the through pipe 4 and the connecting pipe 6, the switching mechanism comprises two circular plates 2, two pipe grooves 15 are respectively formed on the left and right surfaces of the two circular plates 2, a rotating mechanism is arranged between the two limit rings 5 and comprises a circular ring 8, a circular rod 9 is fixedly sleeved at the middle part of the two circular plates 2, a first gear 14 is fixedly connected to the right end of the circular rod 9, connecting blocks 10 are respectively arranged at the two ends of the circular rod 9, rod grooves 13 are respectively formed at the lower ends of the two connecting blocks 10, the two connecting blocks 10 are respectively rotatably connected with the left and right ends of the circular rod 9 through the two rod grooves 13, the upper ends of the two connecting blocks 10 are fixedly connected with clamping rings 11, and the two clamping rings 11 are fixedly sleeved with the outer pipe surfaces of the through pipe 4 and the connecting pipe 6 respectively;

short pipes 12 are fixedly sleeved in two pipe grooves 15 at the upper end, the same short pipes 12 are fixedly sleeved in two pipe grooves 15 at the lower end, filters for filtering dust are movably arranged in the two short pipes 12, the pipe diameters of the short pipes 12 and the through pipe 4 are the same, a group of equidistant rotating rods 3 are fixedly connected to the outer annular surface of a circular ring 8, a gear II 7 is fixedly sleeved at the left end of the outer annular surface of the circular ring 8, an operator rotates the rotating rods 3 to drive the circular ring 8 to rotate, the circular ring 8 is limited by a limiting ring 5 and can only rotate but can not displace, the circular ring 8 rotates to drive a gear I14 to rotate through the gear II 7, the gear I14 rotates to drive the two circular plates 2 to rotate through a circular rod 9, the two circular plates 2 rotate to drive the two short pipes 12 to displace, the pipe orifices of the circular plates 2, the through pipe 4 and the connecting pipe 6 are movably attached to close the through pipe 4 and the connecting pipe 6 in the displacement process, and gas leakage in the through pipe 4 and the connecting pipe 6 in the switching process is avoided, after one short pipe 12 is communicated with the through pipe 4 and the connecting pipe 6, the inside of the other short pipe 12 can be cleaned and replaced by filtering equipment, the normal work of the pump body 1 is not influenced, the working efficiency is improved, and the gear II 7 is meshed with the gear I14;

the inner ring surface of the circular ring 8 is movably attached to the outer pipe surface of the connecting pipe 6, and the connecting pipe 6, the through pipe 4 and the short pipe 12 at the upper end are communicated with each other.

When using, operating personnel drives ring 8 through rotating bull stick 3 and rotates, ring 8 receives the restriction of spacing ring 5 and can only rotate unable displacement, ring 8 rotates and drives gear 14 through gear two 7 and rotates, gear 14 rotates and drives two plectanes 2 through round stick 9 and rotates, two plectanes 2 rotate and drive two nozzle stub 12 displacements, displacement in-process plectane 2 makes siphunculus 4 and connecting pipe 6 closed with the mouth of pipe activity laminating of siphunculus 4 and connecting pipe 6, avoid switching the gaseous leakage in-process siphunculus 4 and the connecting pipe 6, the security has been improved, a nozzle stub 12 and siphunculus 4 and connecting pipe 6 switch-on back, can carry out filtration equipment's washing and change in another nozzle stub 12, do not influence the normal work of the pump body 1, and the work efficiency is improved.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied in the medium.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. The utility model provides a can clear up screw vacuum pump of dust, includes the pump body (1) and connecting pipe (6), its characterized in that: a through pipe (4) is fixedly connected to an air inlet at the front end of the pump body (1), two limiting rings (5) are fixedly sleeved on the outer pipe surface of the connecting pipe (6), and the pipe diameters of the through pipe (4) and the connecting pipe (6) are the same;

a switching mechanism is arranged between the through pipe (4) and the connecting pipe (6), the switching mechanism comprises two circular plates (2), and the left surface and the right surface of each of the two circular plates (2) are respectively provided with two pipe grooves (15);

and a rotating mechanism is arranged between the two limiting rings (5), and comprises a circular ring (8).

2. A dust cleanable screw vacuum pump according to claim 1, wherein: two fixed pole (9) that has cup jointed of middle part of plectane (2), the right-hand member fixedly connected with gear (14) of pole (9), the both ends of pole (9) all are provided with connecting block (10), two pole groove (13), two have all been seted up to the lower extreme of connecting block (10) are connected through two pole grooves (13) and pole (9) about both ends rotate respectively.

3. A dust cleanable screw vacuum pump according to claim 2, wherein: two equal fixedly connected with snap ring (11) in upper end of connecting block (10), two snap ring (11) cup joints with the outer pipe face of siphunculus (4) and connecting pipe (6) is fixed respectively.

4. A dust cleanable screw vacuum pump according to claim 1, wherein: the pipe groove (15) that is located the upper end is internal fixation and cup joints short pipe (12), the pipe groove (15) that is located the lower end is internal fixation and cup joint same short pipe (12), two all the activity is provided with the filter of filtering the dust in short pipe (12), the pipe diameter of short pipe (12) is the same with siphunculus (4).

5. A dust cleanable screw vacuum pump according to claim 1, wherein: the outer annular surface of the circular ring (8) is fixedly connected with a group of equidistant rotating rods (3), the left end of the outer annular surface of the circular ring (8) is fixedly sleeved with a second gear (7), and the second gear (7) is meshed with the first gear (14).

6. A dust cleanable screw vacuum pump according to claim 1, wherein: the inner ring surface of the circular ring (8) is movably attached to the outer pipe surface of the connecting pipe (6), and the connecting pipe (6), the through pipe (4) and the short pipe (12) located at the upper end are communicated with each other.