CN214944984U

CN214944984U - Filter structure of screw air compressor

Info

Publication number: CN214944984U
Application number: CN202121756374.8U
Authority: CN
Inventors: 张昌山
Original assignee: Qicun Energy Saving Technology Jiangsu Co ltd
Current assignee: Qicun Energy Saving Technology Jiangsu Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-11-30
Anticipated expiration: 2031-07-30

Abstract

The utility model relates to the technical field of screw air compressors, in particular to a filter structure of a screw air compressor, which comprises an upper shell, wherein the outer wall of the upper shell is provided with a plurality of convex edges, the top surface of the upper shell is provided with an air inlet, the air inlet is communicated with the inside of the upper shell, the inner top surface of the upper shell is tightly welded with a spring, and a lower shell is arranged below the upper shell; this screw compressor's filter structure is through the filter core fixing device who is equipped with: the air filter element is arranged in the lower shell, the threaded rod is driven to rotate by rotating the twisting blocks on the two sides, the threaded rod drives the movable plate and the fixed rod to move inwards relatively, and the tail end of the fixed rod is in inserted fit with the fixed hole in the air filter element, so that the air filter element can be fixed; this design has changed the mounting means of traditional air cleaner core in the casing, and this design is convenient for carry out the dismouting to air cleaner core, is convenient for daily clear up and maintain air cleaner core.

Description

Filter structure of screw air compressor

Technical Field

The utility model relates to a screw compressor machine technical field specifically is a screw compressor machine's filter structure.

Background

The screw air compressor adopts a pre-formed set configuration screw air compressor, only needs single power connection and compressed air connection, and is internally provided with a cooling system, so that the installation work is greatly simplified, and as an air source, because the compressed air discharged by the air compressor contains a large amount of mixed impurities such as water vapor, oil vapor, dust and the like, if the compressed air containing the impurities is directly conveyed to compressed air using equipment, the whole system can be caused, and the following adverse effects are brought, so an air filter is generally arranged on the screw air compressor; in the prior art, an air filter generally comprises a shell and a filter element inside the shell, the filter element is generally fixed in the shell through a bolt and a support, but the filter element needs to be frequently cleaned and maintained, and the existing installation mode is inconvenient to assemble and disassemble.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a screw compressor's filter structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a screw compressor's filter structure, includes the upper casing, the outer wall of upper casing is equipped with a plurality of beads, the top surface of upper casing is equipped with the air inlet, the air inlet is linked together with the inside of upper casing, the inseparable welding of interior top surface of upper casing has the spring, the below of upper casing is equipped with down the casing, just the upper casing with casing threaded connection down, the inside of casing is equipped with filter core fixing device down.

As the utility model discloses preferred technical scheme, the bottom surface of casing is equipped with the gas outlet down, the inner wall of casing is close to bottom department and is equipped with the holding ring down, it has two symmetrical archs to closely weld on the outer wall of casing down, the cavity has been seted up in the arch, set up the screw hole that is linked together with the cavity in the arch.

As a preferred technical solution of the present invention, the filter element fixing device includes an air filter element, two symmetrical fixing rings are fixedly connected to the air filter element through rivets, two symmetrical bumps are tightly welded to the fixing rings, and fixing holes are formed in the bumps; the bottom end of the air filter element is abutted against the positioning ring, the air outlet of the air filter element penetrates through the positioning ring, and the top end of the air filter element is abutted against the spring.

As a preferred technical solution of the present invention, a movable plate is slidably connected in the cavity, two symmetrical fixing rods are tightly welded on one side wall of the movable plate, and the fixing rods pass through the lower shell and are in insertion fit with the corresponding fixing holes; threaded hole female connection has the threaded rod, the one end of threaded rod is connected with another lateral wall center department of fly leaf rotation, the other end of threaded rod is equipped with twists the piece.

As the utility model discloses preferred technical scheme, the cross recess has been seted up to the other end of threaded rod, twist coaxial inseparable welding on the piece and have cross piece, cross piece and cross recess cooperation of pegging graft.

As the utility model discloses preferred technical scheme, two symmetrical locating holes have been seted up on the holding ring, air filter's bottom surface has two symmetrical locating pieces in close welding, the locating piece is pegged graft with corresponding locating hole and is cooperated.

Compared with the prior art, the beneficial effects of the utility model are that: this screw compressor's filter structure is through the filter core fixing device who is equipped with: the air filter element is arranged in the lower shell, the threaded rod is driven to rotate by rotating the twisting blocks on the two sides, the threaded rod drives the movable plate and the fixed rod to move inwards relatively, and the tail end of the fixed rod is in inserted fit with the fixed hole in the air filter element, so that the air filter element can be fixed; this design has changed the mounting means of traditional air cleaner core in the casing, and this design is convenient for carry out the dismouting to air cleaner core, is convenient for daily clear up and maintain air cleaner core.

Drawings

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

FIG. 2 is a cross-sectional view of the overall structure of the present invention;

FIG. 3 is a schematic diagram of a partial explosion structure in the present invention;

FIG. 4 is a cross-sectional view of the structure of the lower housing of the present invention;

fig. 5 is one of the partial structural schematic views of the filter element fixing device of the present invention;

fig. 6 is a second partial schematic structural view of the filter element fixing device of the present invention.

The various reference numbers in the figures mean:

1. a lower housing; 11. an air outlet; 12. a positioning ring; 121. positioning holes; 13. a protrusion; 131. a threaded hole; 132. a cavity;

2. an upper housing; 21. a rib; 22. an air inlet; 23. a spring;

3. a filter element fixing device; 31. an air filter element; 311. positioning blocks; 32. a fixing ring; 33. a bump; 331. a fixing hole; 34. a threaded rod; 341. a cross groove; 35. twisting the block; 351. a cross block; 36. a movable plate; 37. and (5) fixing the rod.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The utility model provides a technical scheme:

referring to fig. 1-4, a filter structure of a screw air compressor includes an upper casing 2, a plurality of ribs 21 are disposed on an outer wall of the upper casing 2, an air inlet 22 is disposed on a top surface of the upper casing 2, the air inlet 22 is communicated with an interior of the upper casing 2, a spring 23 is tightly welded on an inner top surface of the upper casing 2, a lower casing 1 is disposed below the upper casing 2, and the upper casing 2 is in threaded connection with the lower casing 1. The bottom surface of casing 1 is equipped with gas outlet 11 down, and the inner wall of casing 1 is equipped with holding ring 12 near the bottom department down, and it has two symmetrical archs 13 to weld closely on the outer wall of casing 1 down, has seted up cavity 132 in the arch 13, has seted up the screw hole 131 that is linked together with cavity 132 on the arch 13.

In this embodiment, a plurality of fins 21 are linear equidistant distribution, and the setting of a plurality of fins 21 can increase the frictional force between casing 2 and the hand, and then is convenient for rotate casing 2, is convenient for from casing 1 go up the dismouting casing 2 of follow.

Referring to fig. 5-6, a filter element fixing device 3 is disposed inside the lower housing 1. The filter element fixing device 3 comprises an air filter element 31, two symmetrical fixing rings 32 are fixedly connected to the air filter element 31 through rivets, two symmetrical convex blocks 33 are tightly welded on the fixing rings 32, and fixing holes 331 are formed in the convex blocks 33; the bottom end of the air filter element 31 abuts against the positioning ring 12, the air outlet of the air filter element 31 penetrates through the positioning ring 12, and the top end of the air filter element 31 abuts against the spring 23; a movable plate 36 is slidably connected in the cavity 132, two symmetrical fixed rods 37 are tightly welded on one side wall of the movable plate 36, and the fixed rods 37 penetrate through the lower shell 1 and are in inserted fit with the corresponding fixed holes 331; the threaded hole 131 is connected with a threaded rod 34 in a threaded manner, one end of the threaded rod 34 is rotatably connected with the center of the other side wall of the movable plate 36, and the other end of the threaded rod 34 is provided with a screwing block 35.

In this embodiment, cross recess 341 has been seted up to the other end of threaded rod 34, twists on the piece 35 coaxial close welding have cross piece 351, and cross piece 351 and cross recess 341 grafting cooperation, the setting of cross piece 351 and cross recess 341 is convenient for drive threaded rod 34 through rotating wrong piece 35 and rotate, and then is convenient for fix air filter 31, twists the piece 35 simultaneously and can follow threaded rod 34 and dismantle, and then can avoid the filter to twist piece 35 after the installation and touched by the mistake.

In this embodiment, two symmetrical positioning holes 121 are formed in the positioning ring 12, two symmetrical positioning blocks 311 are tightly welded on the bottom surface of the air filter element 31, the positioning blocks 311 are in insertion fit with the corresponding positioning holes 121, the positioning holes 121 are arranged to achieve a positioning effect on the placement of the air filter element 31, and the tail end of the fixing rod 37 is in insertion fit with the fixing hole 33.

In this embodiment, a rubber sealing ring is disposed at a joint between the air filter element 31 and the positioning ring 12, and the rubber sealing ring is tightly bonded to the positioning ring 12, so that the sealing performance between the air filter element 31 and the positioning ring 12 can be improved by the rubber sealing ring, and thus, unpurified air can be prevented from leaking into the lower portion of the positioning ring 12 in the lower housing 1 through a gap.

When the filter structure of the screw air compressor of the embodiment is used, a user firstly puts the air filter element 31 into the lower shell 1, the positioning block 311 is aligned with the positioning hole 121 on the positioning ring 12 and inserted, then the user inserts the cross block 351 into the cross groove 341, the user rotates the screwing block 35, the screwing block 35 drives the threaded rod 34 to rotate, along with the rotation of the threaded rod 34, the movable plate 36 slides along the cavity 132, the movable plate 36 drives the fixing rods 37 on two sides to move inwards synchronously, the tail ends of the fixing rods 37 are inserted into the fixing holes 331 simultaneously, the air filter element 31 is fixed, finally the user screws the upper shell 2 on the lower shell 1, and the spring 23 abuts against the air filter element 31 simultaneously.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a screw compressor's filter structure, includes casing (2), the outer wall of going up casing (2) is equipped with a plurality of beads (21), the top surface of going up casing (2) is equipped with air inlet (22), air inlet (22) are linked together with the inside of last casing (2), the interior top surface close welding of going up casing (2) has spring (23), its characterized in that: the filter is characterized in that a lower shell (1) is arranged below the upper shell (2), the upper shell (2) is in threaded connection with the lower shell (1), and a filter element fixing device (3) is arranged inside the lower shell (1).

2. The filter structure of the screw air compressor of claim 1, wherein: the bottom surface of casing (1) is equipped with gas outlet (11) down, the inner wall of casing (1) is close to bottom department and is equipped with holding ring (12) down, it has two symmetrical arch (13) to closely weld on the outer wall of casing (1) down, cavity (132) have been seted up in arch (13), screw hole (131) that are linked together with cavity (132) have been seted up on arch (13).

3. The filter structure of the screw air compressor of claim 2, wherein: the filter element fixing device (3) comprises an air filter element (31), the air filter element (31) is fixedly connected with two symmetrical fixing rings (32) through rivets, two symmetrical lugs (33) are tightly welded on the fixing rings (32), and fixing holes (331) are formed in the lugs (33); the bottom end of the air filter element (31) abuts against the positioning ring (12), the air outlet of the air filter element (31) penetrates through the positioning ring (12), and the top end of the air filter element (31) abuts against the spring (23).

4. The filter structure of the screw air compressor of claim 3, wherein: a movable plate (36) is connected in the cavity (132) in a sliding manner, two symmetrical fixed rods (37) are tightly welded on one side wall of the movable plate (36), and the fixed rods (37) penetrate through the lower shell (1) and are in inserted fit with the corresponding fixed holes (331); threaded hole (131) female connection has threaded rod (34), the one end of threaded rod (34) and another lateral wall center department of fly leaf (36) rotate to be connected, the other end of threaded rod (34) is equipped with twists piece (35).

5. The filter structure of the screw air compressor of claim 4, wherein: the other end of the threaded rod (34) is provided with a cross groove (341), a cross block (351) is coaxially and tightly welded on the screwing block (35), and the cross block (351) is in plug-in fit with the cross groove (341).

6. The filter structure of the screw air compressor of claim 5, wherein: two symmetrical positioning holes (121) are formed in the positioning ring (12), two symmetrical positioning blocks (311) are tightly welded to the bottom surface of the air filter element (31), and the positioning blocks (311) are in plug fit with the corresponding positioning holes (121).