CN216278508U

CN216278508U - Screw vacuum pump with high detection precision and good sealing performance

Info

Publication number: CN216278508U
Application number: CN202122214430.1U
Authority: CN
Inventors: 苏增
Original assignee: Jilin Zirui New Material Co ltd
Current assignee: Jilin Zirui New Material Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-04-12
Anticipated expiration: 2031-09-14

Abstract

The utility model discloses a screw vacuum pump with high detection precision and good sealing performance, which comprises a case, wherein the top of the case is fixedly connected with a screw vacuum pump body, the left side of the top of the screw vacuum pump body is provided with an air inlet pipe, the surface of the air inlet pipe is fixedly connected with a sealing box, and the bottom of the inner cavity of the sealing box is fixedly connected with an electric push rod. According to the utility model, through the matching of the electric push rod, the fixing ring, the driving wheel, the slide rod, the sliding sleeve, the clamping block, the driving block, the positioning block, the clamping groove, the connecting pipe and the positioning hole, the positioning block is inserted into the corresponding positioning hole in the connecting pipe, then the electric push rod drives the fixing ring to move upwards, the fixing ring drives the clamping block to move inwards through the driving wheel and the driving block, the clamping block is inserted into the corresponding clamping groove on the positioning block to limit the positioning block, and the installation is convenient, so that the effect of good sealing performance is achieved, and the problem of poor sealing performance of the existing device is solved.

Description

Screw vacuum pump with high detection precision and good sealing performance

Technical Field

The utility model relates to the technical field of screw vacuum pumps, in particular to a screw vacuum pump with high detection precision and good sealing performance.

Background

The vacuum pump is a basic part of vacuum equipment, along with the progress of society and the development of economy, the living standard of people is gradually submitted, the requirements on the working environment and the performance of the vacuum pump are higher and higher, the screw type vacuum pump is an ideal dry pump appearing in the 90 th of 20 th century, the screw type vacuum pump has larger application prospect and development potential and plays an important role in the vacuum pump market, the screw type vacuum pump is a scientific and technological product with very high technical content, is mainly applied to a high-purity vacuum process, has extremely high vacuum degree, can adapt to severe working conditions, has the capacity of extracting coagulability and particle-containing gas, is particularly suitable for a clean environment, is easy to carry out antiseptic treatment, is particularly suitable for the fields of electronics, chemical industry, biomedicine, metal processing, food processing and the like, the sealing performance of the joint of the existing screw type vacuum pump is poorer, and gas leakage is easy to occur, and is inconvenient to install.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a screw vacuum pump with high detection precision and good sealing performance, which has the advantage of good sealing performance and solves the problem of poor sealing performance of the conventional device.

In order to achieve the purpose, the utility model provides the following technical scheme: a screw vacuum pump with high detection precision and good sealing performance comprises a machine case, wherein a screw vacuum pump body is fixedly connected to the top of the machine case, an air inlet pipe is arranged on the left side of the top of the screw vacuum pump body, a sealing box is fixedly connected to the surface of the air inlet pipe, an electric push rod is fixedly connected to the bottom of an inner cavity of the sealing box, a fixing ring is fixedly connected to the top of the electric push rod, a driving wheel is fixedly connected to the top of the fixing ring, a sliding rod is fixedly connected to the inner cavity of the sealing box, a sliding sleeve is sleeved on the surface of the sliding rod, a clamping block is fixedly connected to the bottom of the sliding sleeve, a driving block is fixedly connected to the bottom of the clamping block, a positioning block is fixedly connected to the top of the air inlet pipe, a connecting pipe is arranged at the top of the connecting pipe, a positioning hole is arranged at the top of the connecting pipe, the bottom of the case is fixedly connected with a buffer mechanism.

Preferably, the right side of the sliding rod is fixedly connected with a fixed plate, and the top of the fixed plate is fixedly connected with the top of the inner cavity of the case.

Preferably, the surface cover of slide bar is equipped with first spring, the one end of first spring and the inner chamber fixed connection of seal box, the other end of first spring and one side fixed connection of sliding sleeve.

Preferably, the top of the inner cavity of the case is fixedly connected with a hydraulic telescopic cylinder, the bottom of the hydraulic telescopic cylinder is fixedly connected with a baffle, and the bottom of the baffle is fixedly connected with a universal wheel.

Preferably, buffer gear includes baffle-box, second spring and supporting seat, the top fixedly connected with second spring of baffle-box inner chamber, the bottom fixedly connected with supporting seat of second spring.

Preferably, the driving blocks are trapezoidal in shape, and the number of the driving blocks is six.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the matching of the electric push rod, the fixing ring, the driving wheel, the slide rod, the sliding sleeve, the clamping block, the driving block, the positioning block, the clamping groove, the connecting pipe and the positioning hole, the positioning block is inserted into the corresponding positioning hole in the connecting pipe, then the electric push rod drives the fixing ring to move upwards, the fixing ring drives the clamping block to move inwards through the driving wheel and the driving block, the clamping block is inserted into the corresponding clamping groove on the positioning block to limit the positioning block, and the installation is convenient, so that the effect of good sealing performance is achieved, and the problem of poor sealing performance of the existing device is solved.

2. According to the utility model, the sliding sleeve is convenient to reset by designing the first spring and through the action of the first spring on the sliding sleeve, the hydraulic telescopic cylinder drives the universal wheel to move up and down through the baffle through the matching of the hydraulic telescopic cylinder, the baffle and the universal wheel, so that the device is convenient to move, and through the matching of the buffer box, the second spring and the supporting seat and through the action of the second spring on the supporting seat, the vibration of the device is convenient to buffer, so that the vibration amplitude is reduced.

Drawings

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

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a front sectional view of the buffer box structure of the present invention.

In the figure: 1. a chassis; 2. a screw vacuum pump body; 3. an air inlet pipe; 4. a sealing box; 5. an electric push rod; 6. a fixing ring; 7. a drive wheel; 8. a slide bar; 9. a sliding sleeve; 10. a clamping block; 11. a drive block; 12. positioning blocks; 13. a card slot; 14. a connecting pipe; 15. positioning holes; 16. a buffer mechanism; 161. a buffer tank; 162. a second spring; 163. a supporting seat; 17. a fixing plate; 18. a first spring; 19. a hydraulic telescopic cylinder; 20. a baffle plate; 21. a universal wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

Referring to fig. 1-3, a screw vacuum pump with high detection precision and good sealing performance comprises a machine case 1, a hydraulic telescopic cylinder 19 is fixedly connected to the top of an inner cavity of the machine case 1, a baffle 20 is fixedly connected to the bottom of the hydraulic telescopic cylinder 19, a universal wheel 21 is fixedly connected to the bottom of the baffle 20, the sliding sleeve 9 is convenient to reset by designing a first spring 18 and by the action of the first spring 18 on the sliding sleeve 9, the hydraulic telescopic cylinder 19 drives the universal wheel 21 to move up and down by the cooperation of the hydraulic telescopic cylinder 19, the baffle 20 and the universal wheel 21, the device is convenient to move, the vibration of the device is convenient to buffer by the cooperation of a buffer box 161, a second spring 162 and a supporting seat 163 and by the action of the second spring 162 on the supporting seat 163, the vibration amplitude is reduced, a screw vacuum pump body 2 is fixedly connected to the top of the machine case 1, an air inlet pipe 3 is arranged on the left side of the top of the screw vacuum pump body 2, the surface of the air inlet pipe 3 is fixedly connected with a seal box 4, the bottom of an inner cavity of the seal box 4 is fixedly connected with an electric push rod 5, the top of the electric push rod 5 is fixedly connected with a fixing ring 6, the top of the fixing ring 6 is fixedly connected with a driving wheel 7, the inner cavity of the seal box 4 is fixedly connected with a slide rod 8, the right side of the slide rod 8 is fixedly connected with a fixing plate 17, the top of the fixing plate 17 is fixedly connected with the top of the inner cavity of the case 1, the surface of the slide rod 8 is sleeved with a first spring 18, one end of the first spring 18 is fixedly connected with the inner cavity of the seal box 4, the other end of the first spring 18 is fixedly connected with one side of a sliding sleeve 9, the surface of the slide rod 8 is sleeved with a sliding sleeve 9, the bottom of the sliding sleeve 9 is fixedly connected with a clamping block 10, the bottom of the clamping block 10 is fixedly connected with a driving block 11, the shape of the driving block 11 is trapezoidal, the number of the driving blocks 11 is six, and the top of the air inlet pipe 3 is fixedly connected with a positioning block 12, the surface of the positioning block 12 is provided with a clamping groove 13, the top of the air inlet pipe 3 is provided with a connecting pipe 14, the top of the connecting pipe 14 is provided with a positioning hole 15, the bottom of the case 1 is fixedly connected with a buffer mechanism 16, the buffer mechanism 16 comprises a buffer box 161, a second spring 162 and a supporting seat 163, the top of the inner cavity of the buffer box 161 is fixedly connected with the second spring 162, the bottom of the second spring 162 is fixedly connected with the supporting seat 163, the positioning block 12 is inserted into the corresponding positioning hole 15 in the connecting pipe 14 through the matching of an electric push rod 5, a fixing ring 6, a driving wheel 7, a sliding rod 8, a sliding sleeve 9, a clamping block 10, a driving block 11, the positioning block 12, the clamping groove 13, the connecting pipe 14 and the positioning hole 15, the electric push rod 5 drives the fixing ring 6 to move upwards, the fixing ring 6 drives the clamping block 10 to move inwards through the driving wheel 7 and the driving block 11, the clamping block 10 is inserted into the corresponding clamping groove 13 on the positioning block 12, the positioning block 12 is limited, and the installation is convenient, so that the effect of good sealing performance is achieved, and the problem of poor sealing performance of the existing device is solved.

During the use, insert locating piece 12 in the locating hole 15 that corresponds in the connecting pipe 14, then electric putter 5 drives solid fixed ring 6 rebound, gu fixed ring 6 moves to the inboard through driving wheel 7 and drive block 11 through driving fixture block 10, fixture block 10 inserts the draw-in groove 13 that corresponds on the locating piece 12, spacing locating piece 12, high durability and convenient installation, hydraulic telescoping cylinder 19 drives universal wheel 21 through baffle 20 and reciprocates, conveniently remove the device, through the effect of second spring 162 to supporting seat 163, conveniently cushion the device's vibration, reduce vibration amplitude, thereby reach the effect that sealing performance is good.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent. In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a detect screw vacuum pump that precision height leakproofness is good, includes quick-witted case (1), its characterized in that: the top of the machine box (1) is fixedly connected with a screw vacuum pump body (2), the left side of the top of the screw vacuum pump body (2) is provided with an air inlet pipe (3), the surface of the air inlet pipe (3) is fixedly connected with a seal box (4), the bottom of an inner cavity of the seal box (4) is fixedly connected with an electric push rod (5), the top of the electric push rod (5) is fixedly connected with a fixing ring (6), the top of the fixing ring (6) is fixedly connected with a driving wheel (7), the inner cavity of the seal box (4) is fixedly connected with a slide rod (8), the surface of the slide rod (8) is sleeved with a sliding sleeve (9), the bottom of the sliding sleeve (9) is fixedly connected with a fixture block (10), the bottom of the fixture block (10) is fixedly connected with a driving block (11), the top of the air inlet pipe (3) is fixedly connected with a positioning block (12), and the surface of the positioning block (12) is provided with a clamping groove (13), the top of intake pipe (3) is provided with connecting pipe (14), the top of connecting pipe (14) is provided with locating hole (15), the bottom fixedly connected with buffer gear (16) of quick-witted case (1).

2. The screw vacuum pump with high detection precision and good sealing performance as claimed in claim 1, wherein: the right side of the slide bar (8) is fixedly connected with a fixed plate (17), and the top of the fixed plate (17) is fixedly connected with the top of the inner cavity of the case (1).

3. The screw vacuum pump with high detection precision and good sealing performance as claimed in claim 1, wherein: the surface cover of slide bar (8) is equipped with first spring (18), the one end of first spring (18) and the inner chamber fixed connection of seal box (4), the other end of first spring (18) and one side fixed connection of sliding sleeve (9).

4. The screw vacuum pump with high detection precision and good sealing performance as claimed in claim 1, wherein: the top of the inner cavity of the case (1) is fixedly connected with a hydraulic telescopic cylinder (19), the bottom of the hydraulic telescopic cylinder (19) is fixedly connected with a baffle plate (20), and the bottom of the baffle plate (20) is fixedly connected with a universal wheel (21).

5. The screw vacuum pump with high detection precision and good sealing performance as claimed in claim 1, wherein: buffer gear (16) include baffle-box (161), second spring (162) and supporting seat (163), the top fixedly connected with second spring (162) of baffle-box (161) inner chamber, the bottom fixedly connected with supporting seat (163) of second spring (162).

6. The screw vacuum pump with high detection precision and good sealing performance as claimed in claim 1, wherein: the driving blocks (11) are trapezoidal in shape, and the number of the driving blocks (11) is six.