阅读说明：本技术 一种移动智能变频空压机 (Remove intelligent frequency conversion air compressor machine ) 是由 林华旺 于 2021-08-14 设计创作，主要内容包括：本发明涉及空压机技术领域,公开了一种移动智能变频空压机,包括空压机主体、设置于空压机主体下方的底座,底座下方设置有四个滑轮,底座呈中空结构；底座上沿底座高度方向滑动设置有四个第一连接柱和四个第二连接柱；四个第一连柱和四个第二连接柱均位于底座的四个拐角处；滑轮与第一连接柱一一对应并转动连接于第一连接柱下方；第二连接柱的下方设置有支撑块；底座上设置有切换滑轮或支撑块向下伸出的切换装置。本发明具有便于对空压机移动和固定的状态进行切换的效果。(The invention relates to the technical field of air compressors and discloses a mobile intelligent variable frequency air compressor which comprises an air compressor main body and a base arranged below the air compressor main body, wherein four pulleys are arranged below the base, and the base is of a hollow structure; four first connecting columns and four second connecting columns are arranged on the base in a sliding mode along the height direction of the base; the four first connecting columns and the four second connecting columns are positioned at four corners of the base; the pulleys correspond to the first connecting columns one by one and are rotatably connected below the first connecting columns; a supporting block is arranged below the second connecting column; the base is provided with a switching device for switching the downward extension of the pulley or the supporting block. The air compressor switching device has the effect of conveniently switching the moving and fixing states of the air compressor.)

1. A mobile intelligent variable-frequency air compressor comprises an air compressor main body (1) and a base (2) arranged below the air compressor main body (1), wherein four pulleys (26) are arranged below the base (2), and the mobile intelligent variable-frequency air compressor is characterized in that the base (2) is of a hollow structure; four first connecting columns (23) and four second connecting columns (24) are arranged on the base (2) in a sliding manner along the height direction of the base (2);

the four first connecting columns and the four second connecting columns (24) are positioned at four corners of the base (2); the pulleys (26) correspond to the first connecting columns (23) one by one and are rotatably connected below the first connecting columns (23); a supporting block (27) is arranged below the second connecting column (24);

the base (2) is provided with a switching device (3) with a switching pulley (26) or a supporting block (27) extending downwards.

2. The mobile intelligent variable-frequency air compressor as claimed in claim 1, wherein the first connecting column (23) and the second connecting column (24) which are located at the same corner of the base (2) are arranged in parallel along the length direction of the base (2); the first connecting column (23) positioned at the same corner of the base (2) is positioned at the outer side of the second connecting column (24);

the switching device (3) comprises a wedge block (31) arranged in the base (2), a first reset mechanism (32) arranged on the first connecting column (23), and a second reset mechanism (33) arranged on the second connecting column (24);

the section of the wedge block (31) is isosceles trapezoid, and the length of the upper end of the wedge block (31) is greater than that of the lower end of the wedge block (31); the number of the wedge-shaped blocks (31) is four, and each wedge-shaped block (31) is matched with a first connecting column (23) and a second connecting column (24) which are positioned at the same corner of the base (2); when the first connecting columns (23) are attached to the waist of the corresponding wedge-shaped block (31), the second connecting columns (24) are attached to the lower end face of the corresponding wedge-shaped block (31);

the base (2) is provided with a driving mechanism (34) for driving the wedge block (31) to move back and forth along the length direction of the base (2).

3. The mobile intelligent variable-frequency air compressor as claimed in claim 2, wherein the upper end surfaces of the first connecting column (23) and the second connecting column (24) are rotatably connected with friction reducing wheels (25); the friction reducing wheel (25) is attached to the waist or the lower end face of the wedge block (31).

4. The mobile intelligent variable-frequency air compressor as claimed in claim 2, wherein the first reset mechanism (32) comprises a first fixed block (321) fixed at one side of the first connecting column (23), and a first reset spring (322) with two ends respectively connected to the first fixed block (321) and the inner bottom wall of the base (2).

5. The mobile intelligent variable-frequency air compressor as claimed in claim 2, wherein the second reset mechanism (33) comprises a second fixed block (331) fixed on one side of the second connecting column (24), and a second reset spring (332) having two ends respectively connected to the second fixed block (331) and the inner bottom wall of the base (2).

6. The mobile intelligent variable-frequency air compressor as claimed in claim 2, wherein the driving mechanism (34) comprises a first adjusting rod (341) slidably disposed along the length direction of the base (2);

two first adjusting rods (341) are arranged at intervals along the length direction of the base (2); two ends of the first adjusting rod (341) are respectively and fixedly connected with the wedge-shaped blocks (31) at two corresponding positions;

the base (2) is provided with a linkage assembly (35) for driving the two first adjusting rods (341) to slide oppositely or oppositely.

7. The mobile intelligent variable-frequency air compressor as claimed in claim 6, wherein the linkage assembly (35) comprises an adjusting screw rod (351) rotatably connected to the inner top wall of the base (2), and a second adjusting rod (352) slidably connected to the inner top wall of the base (2);

the length direction of the adjusting screw rod (351) is consistent with the length direction of the base (2); the adjusting screw rod (351) is in threaded connection with one first adjusting rod (341); one end of the base (2) is provided with a brake component (4) for driving an adjusting screw rod (351);

two second adjusting rods (352) are arranged at intervals along the width direction of the base (2); the first adjusting lever (341) and the second adjusting lever (352) are perpendicular to each other;

both ends of the first adjusting rod (341) are provided with first helical racks (343); two ends of the second adjusting rod (352) are provided with second helical racks (354); the two first helical racks (343) positioned on the same side of the base (2) have opposite tooth trace directions; the first helical rack (343) is mutually meshed with the corresponding second helical rack (354).

8. The mobile intelligent variable-frequency air compressor as claimed in claim 7, wherein the upper end surface of the first adjusting rod (341) is provided with a first T-shaped block (342); a second T-shaped block (353) is arranged on the upper end face of the second adjusting rod (352);

a first T-shaped groove (28) and a second T-shaped groove (29) are formed in the inner top wall of the base (2); the length direction of the first T-shaped groove (28) extends along the length direction of the base (2); the length direction of the second T-shaped groove (29) extends along the width direction of the base (2);

the first T-block (342) is in sliding fit with the first T-slot (28); the second T-block (353) is in sliding fit with the second T-shaped groove (29).

9. The mobile intelligent variable-frequency air compressor as claimed in claim 7, wherein the brake assembly (4) comprises a driving rod (41) fixed at one end of the adjusting screw rod (351), a handle (42) arranged at one end of the driving rod (41); the handle (42) is positioned at the outer side of the base (2);

the end part of the base (2) is provided with a positioning component (5) used for limiting the rotation of the driving rod (41).

10. The mobile intelligent variable-frequency air compressor as claimed in claim 9, wherein the positioning assembly (5) comprises a gear (51) fixed on the driving rod (41) and close to the end face of the base (2), a positioning bar (53) rotatably arranged at the end of the base (2), a positioning block (54) arranged on the positioning bar (53), and a positioning tooth (55) arranged on the positioning block (54);

one end of the positioning strip (53) is provided with a threaded column (52); the threaded column (52) is in threaded connection with the end part of the base (2); the threaded column (52) is located at a position laterally above the gear (51);

the positioning teeth (55) are in plug fit with the tooth grooves of the gear (51) at the top.

Technical Field

The invention relates to the technical field of air compressors, in particular to a mobile intelligent variable-frequency air compressor.

Background

Air compressors, also known as air compressors, are devices for compressing gas, are similar in construction to water pumps, most of which are reciprocating piston type, rotating vane or rotating screw, centrifugal compressors are very large applications, and air compressor systems include air compressors, air dryers, air tanks, precision filters and water drains.

When the existing air compressor is used, the air compressor is often placed on the base, and the pulley is arranged below the base, so that the purpose of conveniently carrying the air compressor is achieved.

In view of the above-mentioned related technologies, the inventor of the present application finds that at least the following technical problems exist in the process of implementing the technical solution of the invention in the embodiment of the present application: however, when the whole air compressor needs to be positioned and fixed in the process of transporting the air compressor, the pulley is easy to deviate or rotate, so that the air compressor is unstable to place.

Disclosure of Invention

The embodiment of the application solves the problem that the air compressor is unstable in placement in the prior art, realizes the effect of facilitating the switching between the moving state and the fixed state of the air compressor, can move quickly when the air compressor needs to move, and can be stably placed when the air compressor needs to be fixed.

The embodiment of the application provides a mobile intelligent variable-frequency air compressor, which comprises an air compressor main body and a base arranged below the air compressor main body, wherein four pulleys are arranged below the base, and the base is of a hollow structure; four first connecting columns and four second connecting columns are arranged on the base in a sliding mode along the height direction of the base; the four first connecting columns and the four second connecting columns are located at four corners of the base; the pulleys correspond to the first connecting columns one by one and are rotatably connected below the first connecting columns; a supporting block is arranged below the second connecting column; and the base is provided with a switching device for switching the pulley or the supporting block to extend downwards.

Furthermore, a first connecting column and a second connecting column which are positioned at the same corner of the base are arranged in parallel along the length direction of the base; the first connecting column positioned at the same corner of the base is positioned at the outer side of the second connecting column; the switching device comprises a wedge block arranged in the base, a first reset mechanism arranged on the first connecting column and a second reset mechanism arranged on the second connecting column; the section of the wedge-shaped block is isosceles trapezoid, and the length of the upper end of the wedge-shaped block is greater than that of the lower end of the wedge-shaped block; the number of the wedge-shaped blocks is four, and each wedge-shaped block is matched with a first connecting column and a second connecting column which are positioned at the same corner of the base; when the first connecting column is attached to the waist of the corresponding wedge-shaped block, the second connecting column is attached to the lower end face of the corresponding wedge-shaped block; and the base is provided with a driving mechanism for driving the wedge-shaped block to reciprocate along the length direction of the base.

Furthermore, the upper end surfaces of the first connecting column and the second connecting column are rotatably connected with friction reducing wheels; the friction reducing wheel is attached to the waist or the lower end face of the wedge-shaped block.

Furthermore, the first reset mechanism comprises a first fixed block fixed on one side of the first connecting column, and a first reset spring with two ends respectively connected with the first fixed block and the inner bottom wall of the base.

Furthermore, the second reset mechanism comprises a second fixed block fixed on one side of the second connecting column, and a second reset spring with two ends respectively connected with the second fixed block and the inner bottom wall of the base.

Furthermore, the driving mechanism comprises a first adjusting rod which is arranged in a sliding manner along the length direction of the base; two first adjusting rods are arranged at intervals along the length direction of the base; two ends of the first adjusting rod are respectively and fixedly connected with the wedge-shaped blocks at two corresponding positions; the base is provided with a linkage assembly for driving the two first adjusting rods to slide in opposite directions or slide in opposite directions.

Furthermore, the linkage assembly comprises an adjusting screw rod rotatably connected to the inner top wall of the base and a second adjusting rod slidably connected to the inner top wall of the base; the length direction of the adjusting screw rod is consistent with that of the base; the adjusting screw rod is in threaded connection with one first adjusting rod; one end of the base is provided with a brake assembly for driving the adjusting screw rod; two second adjusting rods are arranged at intervals along the width direction of the base; the first adjusting rod and the second adjusting rod are perpendicular to each other; two ends of the first adjusting rod are respectively provided with a first helical rack; two ends of the second adjusting rod are provided with second helical racks; the two first helical racks positioned on the same side of the base have opposite tooth trace directions; the first helical rack is meshed with the corresponding second helical rack.

Further, a first T-shaped block is arranged on the upper end face of the first adjusting rod; a second T-shaped block is arranged on the upper end face of the second adjusting rod; a first T-shaped groove and a second T-shaped groove are formed in the inner top wall of the base; the length direction of the first T-shaped groove extends along the length direction of the base; the length direction of the second T-shaped groove extends along the width direction of the base; the first T-shaped block is in sliding fit with the first T-shaped groove; the second T-shaped block is in sliding fit with the second T-shaped groove.

Furthermore, the brake assembly comprises a driving rod fixed at one end of the adjusting screw rod and a handle arranged at one end of the driving rod; the handle is positioned on the outer side of the base; the end of the base is provided with a positioning component used for limiting the rotation of the driving rod.

Furthermore, the positioning assembly comprises a gear which is fixed on the driving rod and is close to the end face of the base, a positioning strip which is rotatably arranged at the end part of the base, a positioning block which is arranged on the positioning strip, and a positioning tooth which is arranged on the positioning block; one end of the positioning strip is provided with a threaded column; the threaded column is in threaded connection with the end part of the base; the threaded column is positioned at a lateral upper position of the gear; the positioning teeth are in inserting fit with the tooth grooves of the gear located at the top.

The technical scheme provided in the embodiment of the application at least has the following technical effects or advantages:

1. owing to adopted auto-change over device's structure, so can be when the air compressor machine needs transport, switch over the pulley and stretch out downwards and with ground contact, make the pulley drive base and air compressor machine main part and remove, when needs the air compressor machine to stably place, switch over the supporting shoe through auto-change over device and stretch out downwards and with ground contact, make the base fixed place, be difficult for removing, the unstable problem is placed to the air compressor machine in the prior art has effectively been solved, and then realized being convenient for to the effect that the air compressor machine removed and fixed state switched over, can the quick travel when the air compressor machine need remove, can stably place when the air compressor machine need be fixed motionless.

2. Due to the adoption of the structure of the wedge-shaped block, the wedge-shaped block can be driven by the driving mechanism to move to the position of the end part of the base along the length direction of the base, so that the contact positions of the wedge-shaped block with the first connecting column and the second connecting column can be changed, when the lower end surface of the wedge-shaped block is abutted against the upper part of the first connecting column, the waist of the wedge-shaped block is abutted against the upper part of the second connecting column, so that the extending length of the first connecting column can be changed to be larger than that of the second connecting column, a pulley below the first connecting column is contacted with the ground, a supporting block below the second connecting column is arranged at an interval with the ground, so that the base and the air compressor main body can be conveniently moved, when the wedge-shaped block is moved to the position far away from the end part of the base by the driving mechanism, the bottom of the wedge-shaped block is abutted against the upper part of the second connecting column, and the waist of the wedge-shaped block is abutted against the upper part of the first connecting column, make supporting shoe and the ground contact of second spliced pole below, the pulley and the ground interval setting of first spliced pole below, and then can carry out the stable support to base and air compressor machine main part, make the air compressor machine main part can not easily remove, effectively solved the state that is not convenient for among the prior art to the air compressor machine fast migration and stably places and switched the problem, and then realized conveniently switching the state of air compressor machine, make the air compressor machine can fast migration or stably place.

3. Owing to adopted first canceling release mechanical system and second canceling release mechanical system, so after removing the wedge, can make first spliced pole not receive under the wedge terminal surface when extrudeing can the automatic recovery rise, and then first canceling release mechanical system can make pulley and ground contactless, and remove the wedge and make the bottom and the first spliced pole butt of wedge, can make the supporting shoe keep away from ground under second canceling release mechanical system's effect, and make pulley and ground contact, effectively solved among the prior art not convenient for make pulley or supporting shoe automatic re-setting's problem, and then realized the pulley or the supporting shoe function of being convenient for automatic re-setting.

4. Owing to adopted actuating mechanism's structure, so can adjust the lead screw through rotating, can drive the length direction removal of a first regulation pole along the base, and then can be through the cooperation of first helical gear and second helical gear, can make two first regulation poles remove in opposite directions or the removal of carrying on the back mutually simultaneously, and then can drive the wedge that first regulation pole both ends set up and remove, stretch out or lift up of drive first spliced pole or second spliced pole, effectively solved the problem that four pulleys of being not convenient for quick adjustment and four support column switch among the prior art, and then realized adjusting the effect that four pulleys stretch out or four supporting shoes stretch out simultaneously.

5. Owing to adopted brake assembly's structure, so can be when the state that need not switch over pulley and supporting shoe, through brake assembly, can be with the actuating lever fixed column for adjust the lead screw and be difficult for rotating, and then make current stable in structure reliable, effectively solved among the prior art adjust the lead screw and rotate easily and influence overall structure stability's problem, and then realized being convenient for to adjust the lead screw and carry out fixed effect.

Drawings

Fig. 1 is a schematic structural view of the whole in the embodiment of the present application;

FIG. 2 is a schematic structural diagram of a lower end surface of a base in an embodiment of the present application;

FIG. 3 is a schematic diagram of the internal structure of a base in an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a switching device in an embodiment of the present application;

FIG. 5 is an enlarged schematic view at A in FIG. 3;

FIG. 6 is an enlarged schematic view at B of FIG. 1;

in the figure: 1. an air compressor main body; 2. a base; 21. a first movable hole; 22. a second movable hole; 23. a first connecting column; 24. a second connecting column; 25. a friction reducing wheel; 26. a pulley; 27. a support block; 28. a first T-shaped slot; 29. a second T-shaped slot; 3. a switching device; 31. a wedge block; 32. a first reset mechanism; 321. a first fixed block; 322. a first return spring; 33. a second reset mechanism; 331. a second fixed block; 332. a second return spring; 34. a drive mechanism; 341. a first adjusting lever; 342. a first T-shaped block; 343. a first helical rack; 35. a linkage assembly; 351. adjusting the lead screw; 352. a second adjusting lever; 353. a second T-shaped block; 354. a second helical rack; 4. a brake assembly; 41. a drive rod; 42. a handle; 5. a positioning assembly; 51. a gear; 52. a threaded post; 53. a positioning bar; 54. positioning blocks; 55. positioning teeth; 56. positioning a groove; 57. a slide column.

Detailed Description

The embodiment of the application discloses provides a remove intelligent frequency conversion air compressor machine, through setting up auto-change over device 3, can be when the air compressor machine needs to remove, make pulley 26 and ground contact, and supporting shoe 27 sets up with the ground interval, make base 2 can drive air compressor machine main part 1 quick travel, when the air compressor machine needs rigid, can make pulley 26 and ground break away from the connection, and make supporting shoe 27 and ground contact, support base 2, make air compressor machine main part 1 of placing on base 2 and the base 2 can stably place, the unstable problem of placing of prior art hollow compressor machine has been solved, the effect of being convenient for to move and switch over with fixed state to the air compressor machine has been realized.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

Referring to fig. 1 and 2, a remove intelligent frequency conversion air compressor machine, includes air compressor machine main part 1, base 2, and air compressor machine main part 1 fixed mounting is on base 2, and base 2 is hollow cuboid form. Four first movable holes 21 and four second movable holes 22 are formed in the lower end face of the base 2, the four first movable holes 21 and the four second movable holes 22 are arranged in two rows on the base 2, each row comprises two first movable holes 21 and two second movable holes 22, the two first movable holes 21 and the two second movable holes 22 in each row are arranged in two groups along the length direction of the base 2, one group of first movable holes 21 and one group of second movable holes 22 are located at one corner of the base 2, the first movable holes 21 in each group are close to the edge of the base 2, and the second movable holes 22 in each group are close to the middle of the base 2.

Referring to fig. 2 and 3, a first connecting column 23 is connected in the first movable hole 21, a second connecting column 24 is connected in the second movable hole 22, the first connecting column 23 and the second connecting column 24 can slide along the height direction of the base 2, the first connecting column 23 and the second connecting column 24 located at the same corner of the base 2 are arranged in parallel along the length direction of the base 2, and the first connecting column 23 located at the same corner of the base 2 is located outside the second connecting column 24. The upper end surfaces of the first connecting column 23 and the second connecting column 24 are rotatably connected with friction reducing wheels 25. The lower end face of the first connecting column 23 is rotatably connected with a pulley 26, and the lower end face of the second connecting column 24 is fixedly provided with a supporting block 27.

Referring to fig. 3, 4 and 5, in order to facilitate switching the operating state of the base 2, the driving pulley 26 extends downward to facilitate moving the air compressor body, or the driving support block 27 extends downward to stably place the air compressor body, and the switching device 3 is installed on the base 2. The switching device 3 comprises wedge blocks 31, first reset mechanisms 32, second reset mechanisms 33 and driving mechanisms 34, the sections of the wedge blocks 31 are isosceles trapezoids, the length of the upper ends of the wedge blocks 31 is larger than the length of the lower ends of the wedge blocks 31, the number of the wedge blocks 31 is four, each wedge block 31 is matched with a first connecting column 23 and a second connecting column 24 which are positioned at the same corner of the base 2, when the friction reducing wheels 25 on the first connecting columns 23 are attached to the waists of the corresponding wedge blocks 31, the friction reducing wheels 25 on the second connecting columns 24 are attached to the lower end faces of the corresponding wedge blocks 31, when the friction reducing wheels 25 of the first connecting columns 23 are attached to the lower end faces of the corresponding wedge blocks 31, the friction reducing wheels 25 of the second connecting columns 24 are attached to the waists of the corresponding wedge blocks 31, the wedge blocks 31 are horizontally moved, the different parts of the first connecting columns 23 and the second connecting columns 24 are conveniently changed to be abutted to the wedge blocks 31, and then the heights of the first and second connection columns 23 and 24 can be adjusted so that the heights of the two are different, and thus the states of the pulley 26 and the supporting block 27 can be conveniently switched. First canceling release mechanical system 32 is installed on first spliced pole 23, and when the lower terminal surface of wedge 31 and second spliced pole 24 butt, can make first spliced pole 23 upwards promote through first canceling release mechanical system 32. The first return mechanism 32 includes a first fixed block 321 and a first return spring 322. First fixed block 321 is fixedly mounted on one side of first connecting column 23, and first fixed block 321 is located inside base 2, and the both ends of first reset spring 322 are respectively fixedly connected on the inner bottom wall of first fixed block 321 and base 2. Second canceling release mechanical system 33 is installed on second spliced pole 24, and when the lower terminal surface of wedge 31 and first spliced pole 23 butt, can make second spliced pole 24 upwards promote through second canceling release mechanical system 33. The second return mechanism 33 includes a second fixed block 331 and a second return spring 332. The second fixing block 331 is fixedly mounted on one side of the second connecting column 24, and two ends of the second return spring 332 are respectively and fixedly connected to the second fixing block 331 and the inner bottom wall of the base 2.

Referring to fig. 3, 4 and 5, a driving mechanism 34 is mounted on the base 2 for driving the wedge 31 to reciprocate along the length direction of the base 2, thereby switching the pulley 26 and the supporting block 27. The driving mechanism 34 includes a first adjusting lever 341 and a linkage assembly 35, a length direction of the first adjusting lever 341 is perpendicular to a length direction of the base 2, and two first adjusting levers 341 are spaced apart from each other along the length direction of the base 2. The up end of first regulation pole 341 is fixed with two first T-shaped blocks 342 that the interval set up, sets up the first T-shaped groove 28 that two intervals set up on the interior roof of base 2, and the length direction of first T-shaped groove 28 extends along the length direction of base 2, first T-shaped block 342 and first T-shaped groove 28 sliding fit. Both ends of the first adjusting lever 341 are fixed with first helical racks 343 extending along the length direction of the first adjusting lever 341, and the tooth trace directions of the two first helical racks 343 located on the same side of the base 2 are opposite. The upper end surfaces of every two wedge blocks 31 are fixedly connected with a corresponding first helical rack 343. The linkage assembly 35 is installed in the base 2 and is used for driving the two first adjustment rods 341 to slide towards or away from each other. The linkage assembly 35 comprises an adjusting screw 351 and a second adjusting rod 352, the adjusting screw 351 is rotatably connected to the inner top wall of the base 2, the length direction of the adjusting screw 351 is consistent with that of the base 2, and one end of the adjusting screw 351 penetrates through the middle of one first adjusting rod 341 and is in threaded connection with the first adjusting rod 341. The second adjustment rods 352 are slidably connected to the inner top wall of the base 2, two second adjustment rods 352 are spaced apart from each other in the width direction of the base 2, and the first adjustment rod 341 and the second adjustment rod 352 are perpendicular to each other. The upper end face of the second adjusting rod 352 is fixedly provided with two second T-shaped blocks 353 arranged at intervals, the inner top wall of the base 2 is provided with two second T-shaped grooves 29 arranged at intervals, the length direction of each second T-shaped groove 29 extends along the width direction of the base 2, and the second T-shaped blocks 353 are in sliding fit with the second T-shaped grooves 29. Both ends of the second adjustment lever 352 are fixed with second helical racks 354 extending along the length direction of the second adjustment lever 352. The thickness of the first helical rack 343 is smaller than that of the first adjusting rod 341, the thickness of the second helical rack 354 is smaller than that of the second adjusting rod 352, the surface of the first helical rack 343 provided with teeth faces the inner top wall of the base 2, the surface of the second helical rack 354 provided with teeth faces away from the inner top wall of the base 2, and the first helical rack 343 is meshed with the corresponding second helical rack 354.

Referring to fig. 4 and 6, in order to facilitate the rotation of the adjustment screw 351, a brake assembly 4 is installed at one end of the base 2, the brake assembly 4 includes a driving rod 41 and a handle 42, one end of the driving rod 41 and one end of the adjustment screw 351, and the other end of the driving rod 41 penetrates through the end of the base 2 and extends out of the base 2. A handle 42 is fixed to the end of the drive rod 41 outside the base 2.

Referring to fig. 4 and 6, a positioning assembly 5 is mounted at an end of the base 2 to limit the rotation of the driving rod 41. The positioning assembly 5 includes a gear 51, a threaded column 52, a positioning bar 53, a positioning block 54, a positioning tooth 55, the gear 51 is fixedly installed on the driving rod 41 and close to the position of the end face of the base 2, one end of the threaded column 52 is in threaded connection with the end face of the base 2, the threaded column 52 is located at the position of the upper left side of the gear 51, one end of the positioning bar 53 is fixed on the threaded column 52, the positioning block 54 is fixed on one side of the positioning bar 53, the positioning block 54 is close to the position of the end, far away from the threaded column 52, of the positioning bar 53, and the positioning tooth 55 is fixed at the position of the positioning block 54, far away from one side of the positioning bar 53. The positioning teeth 55 are in plug fit with the topmost tooth grooves of the gear 51. In order to enable the positioning teeth 55 to be stably inserted into the tooth grooves at the top of the gear 51, a positioning groove 56 is formed in the end surface of the base 2 and at the position on the left upper side of the gear 51, the cross section of the positioning groove 56 is arc-shaped, the arc is a major arc, the center of the positioning groove 56 coincides with the rotation center of the threaded column 52, a sliding column 57 is fixed on one side of the positioning strip 53 close to the base 2, the sliding column 57 is slidably connected into the positioning groove 56, the distance between the threaded column 52 and the sliding column 57 is equal to the radius of the positioning groove 56, the connecting line between one end of the positioning groove 56 close to the gear 51 and the center of the positioning groove 56 is a horizontal line, the connecting line between one end of the positioning groove 56 far away from the gear 51 and the center of the positioning groove 56 is an inclined line, the height of the inclined line close to the center of the positioning groove 56 is higher than the height of the inclined line far away from the center of the positioning groove 56, when the threaded column 52 is rotated in a stopped direction, the positioning strip 53 rotates to one side close to the gear 51, when the sliding column 57 contacts with one end of the positioning slot 56, the positioning bar 53 is in a horizontal state, the positioning teeth 55 are inserted into the tooth grooves of the gear 51 at the top, and the positioning blocks 54 are arranged at intervals with the outer side wall of the gear 51. When the threaded column 52 is rotated reversely, the sliding column 57 and the positioning groove 56 are contacted with one end far away from the gear 51, the positioning teeth 55 are separated from the tooth grooves, the positioning strip 53 is inclined from bottom to top to one side close to the gear 51, and then can be stably placed on the positioning strip 53, the positioning teeth 55 do not interfere with the gear 51, and the driving rod 41 can be rotated conveniently.

The working principle of the embodiment of the application is as follows: when the air compressor main body 1 needs to be fixed, the threaded column 52 is rotated in a direction away from the gear 51, so that the positioning teeth 55 are separated from the tooth grooves of the gear 51, the driving rod 41 drives the adjusting screw 351 to rotate in the forward direction by rotating the handle 42, the adjusting screw 351 drives the first adjusting rod 341 in threaded connection with the adjusting screw to slide towards a position close to the center of the base 2, and drives the two wedge-shaped blocks 31 connected with the first adjusting rod 341 to slide towards a position close to the center of the base 2, because the other first adjusting rod 341 is connected with the second oblique rack 343 through the first oblique rack 354, the second adjusting rod 352 can drive the other first adjusting rod 341 to slide towards the direction close to the center of the base 2, and further can drive the wedge-shaped block 31 on the other second adjusting rod 352 to approach towards the center of the base 2, so that the lower end face of each wedge-shaped block 31 is abutted to the friction reducing wheel 25 on the second connecting column 24, second spliced pole 24 stretches out to base 2 below, it supports tightly with ground to drive supporting shoe 27, and the waist of antifriction wheel 25 on the first spliced pole 23 and wedge 31 is contradicted this moment, under the effect of first reset spring 322, make first spliced pole 23 drive pulley 26 to the direction removal that is close to the base 2 top, drive pulley 26 and break away from ground, rotate threaded post 52 at last, make threaded post 52 drive location tooth 55 and rotate, make location tooth 55 peg graft in the tooth's socket at gear 51 top, and then can carry out the outrigger to air compressor main part 1.

When the air compressor main body 1 needs to be transported and moved, the threaded column 52 is rotated towards the direction far away from the gear 51, so that the positioning teeth 55 are separated from the tooth grooves, the driving rod 41 drives the adjusting screw 351 to rotate reversely through reversely rotating the handle 42, and then the first adjusting rod 341 in threaded connection with the driving rod can be driven to slide towards the direction close to the end part of the base 2, and the other first adjusting rod 341 is driven to slide towards the direction close to the other end part of the base 2, so that the four wedge-shaped blocks 31 are simultaneously close to the respective end parts of the base 2, the wedge-shaped blocks 31 are driven to be aligned with the first connecting column 23, the lower end surface of the wedge-shaped block 31 is abutted to the friction reducing wheel 25 above the first connecting column 23, under the action of the second reset spring 332, the waist of the wedge-shaped block 31 is abutted to the friction reducing wheel 25 above the second connecting column 24, the supporting block 27 is driven to be far away from the ground, so that the pulley 26 is abutted to the ground, rotate screw thread post 52 again for location tooth 55 pegs graft in the tooth's socket that current gear 51 is located the top, fixes adjusting screw 351, and then can pass through pulley 26 and ground butt, is convenient for carry air compressor machine main part 1.

The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can substitute or change the technical solution and its concept of the present application within the technical scope disclosed in the present application, and shall be covered by the scope of the present application.