Screw air compressor with dustproof structure

Abstract

The utility model is applicable to the field of screw air compressors, and provides a screw air compressor with a dustproof structure, which comprises a case, a compression component arranged in the case and a dustproof component arranged above the case, and by rotating a driving screw and a driven screw meshed with each other, air can be sucked from an air inlet during rotation, so that the dustproof structure can be used for preventing dust from entering the case. The air inlet is shaded through the dustproof box and the dustproof cover, the dustproof effect is achieved, air entering the air inlet is filtered through the filter block, dust particles are filtered out, the sealing effect of the dustproof cover and the dustproof box is improved through the sealing ring, and the dustproof cover and the dustproof box are fixed through the fixing buckle. The dustproof cover is convenient to disassemble and assemble, the filter block is convenient to replace, and sundries can be prevented from entering the screw box when the filter block is replaced through the arranged blocking net.

Description

TECHNICAL FIELD

[0001] The utility model belongs to screw air compressor field especially relates to a screw air compressor with dustproof structure. BACKGROUND

[0002] Screw air compressor is a kind of air compressor, utilizes the rotation of two intermeshing screw to compress air, gas (usually air) is compressed to improve its pressure, low-pressure air is converted into high-pressure air to meet different work requirements. It is widely used in industry, construction, automobile and other many fields, has higher efficiency and continuous working ability.

[0003] There are usually a large number of dust particles in the working environment of air compressor, in the work, air compressor needs to suck air and pressurize, dust particles are easy to be sucked together with air, dust particles entering air compressor can accelerate the wear of screw and bearing and other components, shorten the service life of equipment, simultaneously influence the cleanliness of compressed air, further can cause the damage of subsequent gas equipment. UTILITY MODEL CONTENTS

[0004] The utility model embodiment is to provide a kind of screw air compressor with dustproof structure, to solve the problem proposed in background art.

[0005] The utility model embodiment is realized as follows, a kind of screw air compressor with dustproof structure, including machine case, the compression component being set in machine case and the dustproof component being set in machine case top, the machine case includes screw box, air inlet and air outlet, the lower end of the screw box is fixedly provided with multiple mounting feet, the upper end of the screw box is provided with air inlet, the lower end of the screw box one end is provided with air outlet, the compression component includes driving shaft, driven shaft, driving screw and driven screw, the driving screw and driven screw are movably arranged in screw box, the driving screw is fixedly installed on driving shaft, the driven screw and driving screw are rotatably engaged, the driven screw is fixedly installed on driven shaft, the dustproof component includes dustproof box, dustproof cover, filter block and multiple fixed buckles, the dustproof cover is arranged in dustproof box top, sealing ring is arranged between dustproof box and dustproof cover, the filter block is arranged in dustproof cover lower end and located air inlet top, the air inlet upper end is provided with screen, the filter block lower end is in close contact with the upper end of screen, multiple fixed buckles are fixedly installed on the outer side of dustproof box and dustproof cover, the dustproof box includes box body, ventilation opening and mounting block, the mounting block is installed on the upper end of screw box, the ventilation opening is fixedly arranged in the lower end of dustproof box both sides.

[0006] As a further scheme of the utility model: the screw box one end is provided with gear cover, the gear cover and screw box one end constitute gear box, the gear box is provided with driving gear and driven gear.

[0007] As a further solution of the present utility model: both ends of the driving shaft and the driven shaft are movably penetrated through the screw box, the driving gear is installed at one end of the driving shaft, the driven gear is installed at one end of the driven shaft, the driving gear and the driven gear are rotationally engaged, and one end of the driving shaft penetrates through the gear cover and extends to the outside of the gear cover to be connected with an external driving device.

[0008] As a further solution of the present utility model: the dust-proof component further includes a dust-falling unit, the dust-falling unit includes a water supply pipe and a plurality of nozzles, the water supply pipe is fixedly installed on the outside of the dust-proof box, a water inlet interface is fixedly arranged at one end of the water supply pipe, and a plurality of the nozzles are uniformly and fixedly arranged at the lower end of the water supply pipe.

[0009] As a further solution of the present utility model: a ventilation plate and a baffle are also fixedly arranged on the inner side of the box body, the baffle is arranged in a cylindrical structure, the baffle is adapted to the air inlet, and the baffle is sleeved on the outside of the air inlet.

[0010] As a further solution of the present utility model: the ventilation plate, the baffle and the box body form a drying box, sieve holes are formed in the ventilation plate, the drying box is in a "return" shape structure, and a desiccant is placed in the drying box.

[0011] As a further solution of the present utility model: a limiting ring is further arranged in the dust-proof cover, the limiting ring is arranged in a rectangular frame, the filter block is made of a porous and loose material, and the filter block is movably clamped in the limiting ring.

[0012] As a further solution of the present utility model: a clamping groove is fixedly arranged at the upper end of the air inlet, a clamping opening corresponding to the clamping groove is arranged on the retaining net, the clamping opening and the clamping groove are clamped with each other, and sieve holes are formed in the retaining net.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. A screw air compressor with a dust-proof structure provided by an embodiment of the present utility model can suck air from the air inlet during rotation through the driving screw and the driven screw that are rotationally engaged, and then discharge the air from the air outlet after rotational compression. The air inlet is shielded by the provided dust-proof box and dust-proof cover to achieve the dust-proof effect. The gas entering the air inlet is filtered by the provided filter block to filter out dust particles. The provided sealing ring improves the sealing effect of the dust-proof cover and the dust-proof box, and is fixed by the fixed buckle, which is convenient for the disassembly and assembly of the dust-proof cover and the replacement of the filter block. The provided retaining net can prevent sundries from entering the screw box when the filter block is replaced.

[0015] 2. A screw air compressor with a dust-proof structure provided by an embodiment of the present utility model injects water into the water supply pipe through the provided water inlet interface and then sprays it out through the nozzles. The water vapor adsorbs the dust particles in the air, reduces the influence of dust on the inhaled air, and improves the dust-proof effect.

[0016] 3. The screw air compressor with the dustproof structure provided in the embodiment of the utility model, through the drying agent stored in the drying box, the inhaled air can be dried, the water vapor is prevented from being liquefied in the screw box and further affecting the operation of the components, and the cleanliness of the compressed air is further guaranteed.

[0017] 4. The screw air compressor with the dustproof structure provided in the embodiment of the utility model, through the limiting ring, the limiting and fixing of the filter block are facilitated, the dustproof cover is installed on the upper end of the dustproof box in cooperation with the fixed buckle, the filter block is pressed to the upper end of the screen, the filtering effect is improved, through the bayonet fitting groove, the screen is convenient to disassemble and replace, and the screen is convenient to clean. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective view of the screw air compressor with the dustproof structure provided in the embodiment of the utility model;

[0019] Figure 2 It is a cross section of the screw air compressor with the dustproof structure provided in the embodiment of the utility model Figure 1 ;

[0020] Figure 3 It is a cross section of the screw air compressor with the dustproof structure provided in the embodiment of the utility model Figure 2 ;

[0021] Figure 4 It is a cross section of the screw air compressor with the dustproof structure provided in the embodiment of the utility model Figure 3 ;

[0022] Figure 5 It is an explosion view of the dustproof assembly 3 of the screw air compressor with the dustproof structure provided in the embodiment of the utility model.

[0023] In the drawing: case 1, screw box 11, mounting foot 12, gear cover 13, air inlet 14, clamping groove 141, air outlet 15, compression assembly 2, driving shaft 21, driving gear 22, driven gear 23, driven shaft 24, driving screw 25, driven screw 26, dustproof assembly 3, dustproof box 31, box body 311, ventilation port 312, air permeable plate 313, baffle 314, mounting block 315, dustproof cover 32, limiting ring 321, sealing ring 33, filter block 34, screen 35, bayonet 351, dust falling unit 36, water supply pipe 361, water inlet 362, spray head 363, fixed buckle 37. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0025] The specific implementation of the utility model is described in detail below in combination with specific examples.

[0026] As Figures 1 to 5 shown, a screw air compressor with a dustproof structure provided by one embodiment of the utility model, comprising a case 1, a compression assembly 2 arranged in the case 1 and a dustproof assembly 3 arranged above the case 1, the case 1 comprises a screw case 11, an air inlet 14 and an air outlet 15, a plurality of mounting feet 12 are fixedly arranged at the lower end of the screw case 11, the air inlet 14 is arranged at the upper end of the screw case 11, the air outlet 15 is arranged below one end of the screw case 11, the compression assembly 2 comprises a driving shaft 21, a driven shaft 24, a driving screw 25 and a driven screw 26, the driving screw 25 and the driven screw 26 are movably arranged in the screw case 11, the driving screw 25 is fixedly mounted on the driving shaft 21, the driven screw 26 is rotatably engaged with the driving screw 25, and the driven screw 26 is fixedly mounted on the driven shaft 24, the dustproof assembly 3 comprises a dustproof box 31, a dustproof cover 32, a filter block 34 and a plurality of fixed buckles 37, the dustproof cover 32 is arranged above the dustproof box 31, a sealing ring 33 is arranged between the dustproof box 31 and the dustproof cover 32, the filter block 34 is arranged at the lower end of the dustproof cover 32 and above the air inlet 14, a screen 35 is mounted at the upper end of the air inlet 14, the lower end of the filter block 34 is in close contact with the upper end of the screen 35, and the plurality of fixed buckles 37 are fixedly mounted on the outer sides of the dustproof box 31 and the dustproof cover 32, the dustproof box 31 comprises a box body 311, a ventilation port 312 and a mounting block 315, the mounting block 315 is mounted on the upper end of the screw case 11, and the ventilation port 312 is fixedly arranged at the lower end of the dustproof box 31.

[0027] In one embodiment of the utility model, the driving screw 25 and the driven screw 26 are rotatably engaged, air can be sucked from the air inlet 14 during rotation, and then discharged from the air outlet 15 after being compressed, the dustproof box 31 and the dustproof cover 32 are arranged to shield the air inlet 14, thereby achieving the dustproof effect, the filter block 34 is arranged to filter the gas entering the air inlet 14, thereby removing dust particles, the sealing ring 33 is arranged to improve the sealing effect of the dustproof cover 32 and the dustproof box 31, and the fixed buckles 37 are arranged to facilitate the disassembly and assembly of the dustproof cover 32 and the replacement of the filter block 34, and the screen 35 is arranged to prevent sundries from entering the screw case 11 when the filter block 34 is replaced.

[0028] AsFigure 1 and Figure 2 As shown in Figure 2 , as another embodiment of the present utility model, a gear cover 13 is provided at one end of the screw box 11. The gear cover 13 and one end of the screw box 11 form a gear box, and a driving gear 22 and a driven gear 23 are arranged inside the gear box.

[0029] Specifically, both ends of the driving shaft 21 and the driven shaft 24 movably penetrate through the screw box 11. The driving gear 22 is installed at one end of the driving shaft 21, the driven gear 23 is installed at one end of the driven shaft 24, the driving gear 22 and the driven gear 23 are rotationally engaged, and one end of the driving shaft 21 penetrates through the gear cover 13 and extends to the outside of the gear cover 13 to be connected with an external driving device.

[0030] In one embodiment of the present utility model, by arranging the driving gear 22 and the driven gear 23 to mesh with each other, the driving shaft 21 is rotated by an external driving device and then the driven shaft 24 is rotated, ensuring that the driving screw 25 and the driven screw 26 rotate synchronously in opposite directions. At the same time, the arranged gear cover 13 can also be used to protect the driving gear 22 and the driven gear 23, preventing the driving gear 22 and the driven gear 23 from being damaged by friction.

[0031] As Figure 3 and Figure 4 shown, as another embodiment of the present utility model, the dust-proof component 3 further includes a dust-removing unit 36. The dust-removing unit 36 includes a water supply pipe 361 and a plurality of nozzles 363. The water supply pipe 361 is fixedly installed on the outside of the dust-proof box 31. One end of the water supply pipe 361 is fixedly provided with a water inlet interface 362, and a plurality of the nozzles 363 are evenly and fixedly arranged at the lower end of the water supply pipe 361.

[0032] In one embodiment of the present utility model, water is injected into the water supply pipe 361 through the arranged water inlet interface 362 and then sprayed out through the nozzles 3, and the water vapor adsorbs dust particles in the air, reducing the influence of dust on the inhaled air and improving the dust-proof effect.

[0033] As Figure 4 shown, as another embodiment of the present utility model, a ventilation plate 313 and a baffle 314 are also fixedly arranged inside the box body 311. The baffle 314 is arranged in a cylindrical structure and is adapted to the air inlet 14. The baffle 314 is sleeved on the outside of the air inlet 14.

[0034] Specifically, the ventilation plate 313, the baffle 314 and the box body 311 form a drying box. Sieve holes are formed in the ventilation plate . The drying box is in a "return" shape structure, and a desiccant is placed in the drying box.

[0035] In one embodiment of the present application, the drying agent stored in the drying box can dry the inhaled air, prevent water vapor from being liquefied in the screw box 11 and further affect the operation of the components, and further ensure the cleanliness of the compressed air.

[0036] As shown in Figure 4 As another embodiment of the present application, the dustproof cover 32 is further provided with a limiting ring 321, the limiting ring 321 is provided as a rectangular frame, the filter block 34 is provided as a loose and porous material, and the filter block 34 is movably clamped in the limiting ring 321.

[0037] In one embodiment of the present application, the limiting ring 321 is provided to facilitate the limiting and fixing of the filter block 34, the dustproof cover 32 is installed on the upper end of the dustproof box 31 by cooperating with the fixing buckle 37, so that the filter block 34 is pressed onto the upper end of the barrier net 35, and the filtering effect is improved.

[0038] As shown in Figure 3 As another embodiment of the present application, the upper end of the air inlet 14 is fixedly provided with a clamping groove 141, the barrier net 35 is provided with a clamping opening 351 corresponding to the clamping groove 141, the clamping opening 351 and the clamping groove 141 are clamped with each other, and the barrier net 35 is provided with a sieve hole.

[0039] In one embodiment of the present application, the clamping opening 351 cooperates with the clamping groove 141 to facilitate the disassembly and replacement of the barrier net 35, and facilitate the cleaning of the barrier net 35.

[0040] It is apparent to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0041] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0042] In the description of the utility model, need understanding is, the term "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "internal", "external" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, construct and operate in a particular orientation, therefore can not be understood as the restriction of the utility model. In addition, the term "first", "second" and so on are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and so on can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0043] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0044] In addition, it should be understood that, although the present specification is described according to the embodiments, not every embodiment contains only one independent technical scheme, the description mode of the specification is only for clarity, the skilled in the art should regard the specification as a whole, and the technical scheme in each embodiment can also be appropriately combined to form other embodiments that the skilled in the art can understand.

Claims

1. A screw air compressor with a dustproof structure, comprising a machine box (1), a compression assembly (2) arranged in the machine box (1), and a dustproof assembly (3) arranged above the machine box (1), characterized in that, The case (1) comprises a screw box (11), an air inlet (14) and an air outlet (15), a plurality of mounting feet (12) are fixedly arranged at the lower end of the screw box (11), the air inlet (14) is arranged at the upper end of the screw box (11), the air outlet (15) is arranged below one end of the screw box (11), the compression assembly (2) comprises a driving shaft (21), a driven shaft (24), a driving screw (25) and a driven screw (26), the driving screw (25) and the driven screw (26) are movably arranged in the screw box (11), the driving screw (25) is fixedly installed on the driving shaft (21), the driving screw (25) and the driven screw (26) are in rotationally engaged, the driven screw (26) is fixedly installed on the driven shaft (24), the dustproof assembly (3) comprises a dustproof box (31), a dustproof cover (32), a filter block (34) and a plurality of fixed buckles (37), the dustproof cover (32) is arranged above the dustproof box (31), a sealing ring (33) is arranged between the dustproof box (31) and the dustproof cover (32), the filter block (34) is arranged at the lower end of the dustproof cover (32) and above the air inlet (14), a screen (35) is installed at the upper end of the air inlet (14), the lower end of the filter block (34) is in close contact with the upper end of the screen (35), a plurality of fixed buckles (37) are fixedly installed on the outer sides of the dustproof box (31) and the dustproof cover (32), the dustproof box (31) comprises a box body (311), a ventilation opening (312) and a mounting block (315), the mounting block (315) is installed on the upper end of the screw box (11), the ventilation opening (312) is fixedly arranged at the lower end of the dustproof box (31).

2. The screw air compressor having a dustproof structure according to claim 1, wherein One end of the screw box (11) is provided with a gear cover (13), the gear cover (13) and one end of the screw box (11) constitute a gear box, and the gear box is provided with a driving gear (22) and a driven gear (23).

3. The screw air compressor having a dustproof structure according to claim 2, characterized in that, Both ends of the driving shaft (21) and the driven shaft (24) movably penetrate the screw box (11), the driving gear (22) is installed at one end of the driving shaft (21), the driven gear (23) is installed at one end of the driven shaft (24), the driving gear (22) and the driven gear (23) are in rotationally engaged, one end of the driving shaft (21) penetrates the gear cover (13) and extends to the outside of the gear cover (13) to be connected with an external driving device.

4. The screw air compressor having a dustproof structure according to claim 1, wherein The dustproof assembly (3) further comprises a dust falling unit (36), the dust falling unit (36) comprises a water supply pipe (361) and a plurality of spray heads (363), the water supply pipe (361) is fixedly installed on the outer side of the dustproof box (31), one end of the water supply pipe (361) is fixedly provided with a water inlet (362), and the plurality of spray heads (363) are uniformly fixedly arranged at the lower end of the water supply pipe (361).

5. The screw air compressor having a dustproof structure according to claim 4, wherein The inner side of the box body (311) is further fixedly provided with a breathable plate (313) and a baffle (314), the baffle (314) is arranged in a cylindrical structure, the baffle (314) is matched with the air inlet (14), and the baffle (314) is sleeved outside the air inlet (14).

6. The screw air compressor having a dustproof structure according to claim 5, wherein The air-permeable plate (313), the baffle plate (314) and the box body (311) form a drying box. Sieve holes are formed in the air-permeable plate (313). The drying box is of a "return" shape structure, and a drying agent is placed in the drying box.

7. The screw air compressor having a dustproof structure according to claim 1, wherein A limiting ring (321) is further arranged in the dust-proof cover (32). The limiting ring (321) is arranged as a rectangular frame. The filter block (34) is made of a porous and loose material, and the filter block (34) is movably clamped in the limiting ring (321).

8. The screw air compressor having a dustproof structure according to claim 1, wherein A clamping groove (141) is fixedly arranged at the upper end of the air inlet (14). The retaining net (35) is provided with a bayonet (351) corresponding to the clamping groove (141). The bayonet (351) and the clamping groove (141) are clamped with each other, and sieve holes are formed in the retaining net (35).

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