阅读说明：本技术 表面除锈喷砂机 (Surface rust-removing sand-blasting machine ) 是由 陈建之 于 2020-12-30 设计创作，主要内容包括：本发明涉及喷砂机领域,且公开了表面除锈喷砂机,包括喷砂机主体,所述喷砂机主体的下端设置有第一把手,所述第一把手的后端设置有废料槽,所述废料槽的两端设置有纵向滑杆,所述纵向滑杆的两端设置有第一滑槽,所述第一滑槽的上端对应废料槽的上端内表面设置有第二滑槽,所述第二滑槽的内端设置有横向滑杆,所述横向滑杆的上端设置有活动板,所述活动板的上端设置有第一转轴,所述第一转轴的上端对应喷砂机主体的前端设置有固定板,所述固定板的前端设置有贯穿孔,所述贯穿孔的内端设置有滑块,所述滑块的外端设置有限位块,所述限位块的后端设置有弹簧。便于喷砂机的碎屑处理,便于喷砂仓内部清洁,便于对刷板的固定与更换。(The invention relates to the field of sand blasting machines, and discloses a surface rust removal sand blasting machine, which comprises a sand blasting machine main body, a first handle is arranged at the lower end of the main body of the sand blasting machine, a waste chute is arranged at the rear end of the first handle, two ends of the waste material groove are provided with longitudinal sliding rods, two ends of the longitudinal sliding rods are provided with first sliding chutes, a second chute is arranged at the upper end of the first chute corresponding to the inner surface of the upper end of the waste chute, a transverse sliding rod is arranged at the inner end of the second chute, a movable plate is arranged at the upper end of the transverse sliding rod, a first rotating shaft is arranged at the upper end of the movable plate, the upper end of the first rotating shaft is provided with a fixed plate corresponding to the front end of the main body of the sand blasting machine, the front end of the fixed plate is provided with a through hole, the inner of through hole is provided with the slider, the outer end of slider is provided with the stopper, the rear end of stopper is provided with the spring. The debris of the sand blasting machine can be conveniently treated, the interior of the sand blasting bin can be conveniently cleaned, and the brush plate can be conveniently fixed and replaced.)

1. Surface rust cleaning sand blasting machine, including sand blasting machine main part (1), its characterized in that: the lower end of the sand blasting machine main body (1) is provided with a first handle (8), the rear end of the first handle (8) is provided with a waste tank (2), the two ends of the waste tank (2) are provided with longitudinal slide bars (3), the two ends of the longitudinal slide bars (3) are provided with first slide grooves (4), the upper end of each first slide groove (4) is provided with a second slide groove (6) corresponding to the inner surface of the upper end of the waste tank (2), the inner end of each second slide groove (6) is provided with a transverse slide bar (5), the upper end of each transverse slide bar (5) is provided with a movable plate (7), the upper end of each movable plate (7) is provided with a first rotating shaft (9), the upper end of each first rotating shaft (9) is provided with a fixed plate (15) corresponding to the front end of the sand blasting machine main body (1), the front end of each fixed plate (15) is provided with a, a limiting block (20) is arranged at the outer end of the sliding block (17), a spring (21) is arranged at the rear end of the limiting block (20), a third sliding groove (22) is arranged at the outer end of the spring (21), a clamping groove (18) is arranged at the front end of the third sliding groove (22) and corresponds to the lower end of the sliding block (17), a clamping block (19) is arranged at the lower end of the clamping groove (18) and corresponds to the inner end of the fixing plate (15), a sliding plate (12) is arranged at the lower end of the clamping block (19), a second handle (11) is arranged at the front end of the sliding plate (12), sliding grooves (13) are arranged at the two ends of the second handle (11) and correspond to the two ends of the sliding plate (12), a sand blasting bin (14) is arranged at the inner end of the sliding groove (13) and corresponds to the inner end of the sand blasting machine main body (1), a second rotating shaft (10) is arranged at the, the head end of brush board (27) is provided with first locating piece (25), the outer end that the outer end of first locating piece (25) corresponds second pivot (10) is provided with first constant head tank (23), the tail end of brush board (27) is provided with second locating piece (26), the head end that the outer end of second locating piece (26) corresponds brush board (27) is provided with second constant head tank (24).

2. The surface rust removing sand blasting machine according to claim 1, characterized in that: the sand blasting machine is characterized in that the rear end of the first handle (8) is fixedly connected with the waste trough (2), the two ends of the waste trough (2) are fixedly connected with the longitudinal slide rod (3), the length of the longitudinal slide rod (3) is equal to the depth of the waste trough (2), the longitudinal slide rod (3) is slidably connected with the first chute (4), and the first chute (4) is embedded in the inner surface of the lower end of the sand blasting machine main body (1).

3. The surface rust removing sand blasting machine according to claim 1, characterized in that: the vertical height of the first sliding groove (4) is lower than that of the second sliding groove (6), the second sliding groove (6) is fixedly connected with the waste material groove (2), the inner end of the second sliding groove (6) is connected with the transverse sliding rods (5) in a sliding mode, the length of each transverse sliding rod (5) is equal to the distance between the corresponding second sliding grooves (6), and the number of the second sliding grooves (6) is two.

4. The surface rust removing sand blasting machine according to claim 1, characterized in that: the upper end of the transverse sliding rod (5) is fixedly connected with the movable plate (7), the upper end of the movable plate (7) is fixedly connected with the first rotating shaft (9), and the length of the first rotating shaft (9) is equal to that of the second sliding groove (6).

5. The surface rust removing sand blasting machine according to claim 1, characterized in that: the front end of the sand blasting machine main body (1) is fixedly connected with the fixing plate (15), the through hole (16) penetrates through the outer surfaces of the front end and the rear end of the fixing plate (15), the inner end of the through hole (16) is connected with the sliding block (17) in a sliding mode, and the size of the cross section of the sliding block (17) is equal to that of the cross section of the through hole (16).

6. The surface rust removing sand blasting machine according to claim 1, characterized in that: fixed connection between the outer end of slider (17) and stopper (20), and the cross-sectional size of stopper (20) is greater than the cross-sectional size of slider (17), fixed connection between the rear end of stopper (20) and the front end surface of spring (21), and fixed connection between the rear end of spring (21) and the rear end internal surface of third spout (22).

7. The surface rust removing sand blasting machine according to claim 1, characterized in that: the clamping groove (18) is embedded in the inner surface of the lower end of the sliding block (17), the inner end of the clamping groove (18) is connected with the clamping block (19) in an embedded mode, the lower end of the clamping block (19) is fixedly connected with the upper end of the sliding plate (12), the second handle (11) is embedded in the inner surface of the front end of the sliding plate (12), the two ends of the sliding plate (12) are connected with the sliding grooves (13) in a sliding mode, the number of the sliding grooves (13) is two, and the sliding grooves (13) are fixedly connected with the inner surfaces of the two ends of the sand blasting bin (14).

8. The surface rust removing sand blasting machine according to claim 1, characterized in that: swing joint between the lower extreme of sandblast storehouse (14) and second pivot (10), and embedded in the surface of second pivot (10) in first constant head tank (23), through first constant head tank (23) sliding connection between first locating piece (25) and second pivot (10), and fixed connection between the outer end of first locating piece (25) and the head end of brush board (27), the length of first locating piece (25) equals the length of brush board (27), fixed connection between the tail end of brush board (27) and second locating piece (26), and the outer end of second locating piece (26) passes through sliding connection between second constant head tank (24) and brush board (27), and embedded and the head end of brush board (27) in second constant head tank (24).

Technical Field

The invention relates to the field of sand blasting machines, in particular to a surface rust removal sand blasting machine.

Background

With the development of science and technology and society, the sand blasting machine is beneficial to removing rust on the surface of a rusty object and secondary processing of the object, the complex operation flow of rust treatment is avoided, certain problems exist when the sand blasting machine for removing rust on the surface of a pipe is used, firstly, the sand blasting machine is inconvenient to treat fragments, secondly, the sand blasting bin is inconvenient to clean, and finally, the brush plate is inconvenient to replace, so the sand blasting machine for removing rust on the surface is provided.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the sand blasting machine with the surface rust removal function, which is convenient for the fragment treatment of the sand blasting machine, the internal cleaning of a sand blasting bin and the fixing and replacement of a brush plate, and solves the problems that the fragment treatment of the traditional sand blasting machine is inconvenient, the internal cleaning of the sand blasting bin is inconvenient and the replacement of the brush plate is inconvenient.

(II) technical scheme

In order to realize the purposes of facilitating the fragment treatment of the sand blasting machine, facilitating the internal cleaning of the sand blasting bin and facilitating the fixing and replacement of the brush plate, the invention provides the following technical scheme: the surface rust removal sand blasting machine comprises a sand blasting machine main body, wherein a first handle is arranged at the lower end of the sand blasting machine main body, a waste chute is arranged at the rear end of the first handle, longitudinal slide rods are arranged at two ends of the waste chute, first slide grooves are arranged at two ends of the longitudinal slide rods, a second slide groove is arranged at the upper end of the first slide groove and corresponds to the inner surface of the upper end of the waste chute, a transverse slide rod is arranged at the inner end of the second slide groove, a movable plate is arranged at the upper end of the transverse slide rod, a first rotating shaft is arranged at the upper end of the movable plate, a fixed plate is arranged at the upper end of the first rotating shaft and corresponds to the front end of the sand blasting machine main body, a through hole is arranged at the front end of the fixed plate, a sliding block is arranged at the inner end of the through, the lower extreme that the front end of third spout corresponds the slider is provided with the draw-in groove, the lower extreme of draw-in groove corresponds the inner of fixed plate and is provided with the fixture block, the lower extreme of fixture block is provided with the sliding plate, the front end of sliding plate is provided with the second handle, the both ends that the both ends of second handle correspond the sliding plate are provided with the sliding tray, the inner that the inner of sliding tray corresponds the sand blasting machine main part is provided with the sandblast storehouse, the lower extreme of sandblast storehouse is provided with the second pivot, the outer end of second pivot is provided with the brush board, the head end of brush board is provided with first locating piece, the outer end that the outer end of first locating piece corresponds the second pivot is provided with first constant head tank, the tail end of brush board is provided with the second locating piece, the head end that the outer end of second locating piece corresponds.

Preferably, the rear end of the first handle is fixedly connected with the waste tank, the two ends of the waste tank are fixedly connected with the longitudinal sliding rod, the length of the longitudinal sliding rod is equal to the depth of the waste tank, the longitudinal sliding rod is slidably connected with the first sliding groove, and the first sliding groove is embedded in the inner surface of the lower end of the main body of the sand blasting machine.

Preferably, the vertical height of the first sliding groove is lower than that of the second sliding groove, the second sliding groove is fixedly connected with the waste material groove, the inner end of the second sliding groove is connected with the transverse sliding rod in a sliding mode, the length of the transverse sliding rod is equal to the distance between the second sliding grooves, and the number of the second sliding grooves is two.

Preferably, the upper end of the transverse sliding rod is fixedly connected with the movable plate, the upper end of the movable plate is fixedly connected with the first rotating shaft, and the length of the first rotating shaft is equal to that of the second sliding groove.

Preferably, the front end of the main body of the sand blasting machine is fixedly connected with the fixing plate, the through hole penetrates through the outer surfaces of the front end and the rear end of the fixing plate, the inner end of the through hole is connected with the sliding block in a sliding mode, and the size of the cross section of the sliding block is equal to that of the through hole.

Preferably, fixed connection between the outer end of slider and the stopper, and the cross-sectional size of stopper is greater than the cross-sectional size of slider, fixed connection between the rear end of stopper and the front end surface of spring, and fixed connection between the rear end of spring and the rear end internal surface of third spout.

Preferably, the clamping groove is embedded in the inner surface of the lower end of the sliding block, the inner end of the clamping groove is connected with the clamping block in a clamping and embedding manner, the lower end of the clamping block is fixedly connected with the upper end of the sliding plate, the second handle is embedded in the inner surface of the front end of the sliding plate, two ends of the sliding plate are connected with the sliding grooves in a sliding manner, the number of the sliding grooves is two, and the sliding grooves are fixedly connected with the inner surfaces of the two ends of the sand blasting bin.

Preferably, swing joint between the lower extreme in sandblast storehouse and the second pivot, and first constant head tank is embedded in the surface of second pivot, through first constant head tank sliding connection between first constant head tank and the second pivot, and fixed connection between the outer end of first constant head tank and the head end of brush board, the length of first constant head tank equals the length of brush board, fixed connection between the tail end of brush board and the second locating piece, and the outer end of second locating piece passes through sliding connection between second constant head tank and the brush board, and the embedded head end with the brush board of second constant head tank.

(III) advantageous effects

Compared with the prior art, the invention provides the sand blasting machine with the surface rust removal function, which has the following beneficial effects:

1. this surface rust cleaning sand blasting machine, through the dirty tank, vertical slide bar, first spout, horizontal slide bar, the second spout, the fly leaf, the cooperation of the first in command and first pivot, when the piece that holds in the dirty tank is taken out to needs, at first outside pulling first in command, make the dirty tank slide outside in first spout along vertical slide bar under the pulling of the first in command, horizontal slide bar slides in the second spout and drives the fly leaf and rotate under the rotation of first pivot, thereby the convenience is taken out and is convenient to the dirty tank and the rust cleaning part of upper end open the washing under the rotation of first pivot through the fly leaf.

2. The surface rust removal sand blasting machine is characterized in that through the matching of the second handle, the sliding plate, the sliding groove, the sand blasting bin, the fixed plate, the through hole, the sliding block, the clamping groove, the clamping block, the limiting block and the spring and the third sliding groove, when the sand blasting bin needs to be conveniently cleaned, the second handle is pulled upwards to enable the sliding plate to slide along the sliding groove, the sand blasting bin is exposed, in the process of upward movement of the sliding plate, the clamping block at the upper end of the sliding plate is clamped and embedded in the clamping groove at the lower end of the sliding block in the through hole at the upper end of the fixed plate, so that the sliding plate can be conveniently slid and fixed, when the sand blasting bin needs to be covered by the sliding plate, the sliding block is pressed inwards along the through hole, the limiting block at the rear end of the sliding block slides along the third sliding groove and, so that the sliding plate can be moved downward along the inner end of the fixed plate.

3. This surface rust cleaning sand blasting machine, through the second pivot, first constant head tank, the second constant head tank, first locating piece, the cooperation of second locating piece and brush board, when needs are changed to the brush board of rust cleaning sand blasting machine the inner, at first remove the second fixed block of brush board tail end along the second constant head tank, make the tail end and the head end separation of brush board, again with the first locating piece of head end of brush board with be located the first constant head tank of second pivot surface between the separation, thereby replace new brush board, convenience very.

Drawings

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

FIG. 2 is a schematic view of a partially enlarged structure of the waste chute of the present invention;

FIG. 3 is a partial side sectional view of the chute of the present invention;

FIG. 4 is a front cross-sectional view of the chute of the present invention;

FIG. 5 is a front cross-sectional view of the lower end of the slide plate of the present invention;

FIG. 6 is a top, shallow cross-sectional view of the slide plate of the present invention;

fig. 7 is a side sectional view of a second rotating shaft of the present invention.

In the figure: 1. a main body of a sand blasting machine; 2. a waste chute; 3. a longitudinal slide bar; 4. a first chute; 5. a transverse sliding bar; 6. a second chute; 7. a movable plate; 8. a first handle; 9. a first rotating shaft; 10. a second rotating shaft; 11. a second handle; 12. a sliding plate; 13. a sliding groove; 14. a sand blasting bin; 15. a fixing plate; 16. a through hole; 17. a slider; 18. a card slot; 19. a clamping block; 20. a limiting block; 21. a spring; 22. a third chute; 23. a first positioning groove; 24. a second positioning groove; 25. a first positioning block; 26. a second positioning block; 27. and (7) brushing the board.

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. 1-7, the surface rust removing sand blasting machine comprises a sand blasting machine main body 1, a first handle 8 is arranged at the lower end of the sand blasting machine main body 1, a waste chute 2 is arranged at the rear end of the first handle 8, a longitudinal slide bar 3 is arranged at two ends of the waste chute 2, a first slide groove 4 is arranged at two ends of the longitudinal slide bar 3, a second slide groove 6 is arranged at the upper end of the first slide groove 4 corresponding to the inner surface of the upper end of the waste chute 2, a transverse slide bar 5 is arranged at the inner end of the second slide groove 6, a movable plate 7 is arranged at the upper end of the transverse slide bar 5, a first rotating shaft 9 is arranged at the upper end of the movable plate 7, a fixed plate 15 is arranged at the upper end of the first rotating shaft 9 corresponding to the front end of the sand blasting machine main body 1, a through hole 16 is arranged at the front end of the fixed plate 15, a slide, a clamping groove 18 is formed in the front end of the third sliding groove 22 corresponding to the lower end of the sliding block 17, a clamping block 19 is arranged at the lower end of the clamping groove 18 corresponding to the inner end of the fixing plate 15, a sliding plate 12 is arranged at the lower end of the clamping block 19, a second handle 11 is arranged at the front end of the sliding plate 12, sliding grooves 13 are formed in the two ends of the second handle 11 corresponding to the two ends of the sliding plate 12, a sand blasting bin 14 is arranged at the inner end of the sliding groove 13 corresponding to the inner end of the sand blasting machine main body 1, a second rotating shaft 10 is arranged at the lower end of the sand blasting bin 14, a brush plate 27 is arranged at the outer end of the second rotating shaft 10, a first positioning block 25 is arranged at the head end of the brush plate 27, a first positioning groove 23 is arranged at the outer end of the first positioning block 25 corresponding to the outer end of the second rotating shaft 10, a second positioning block 26 is arranged at the tail end of the.

The rear end of the first handle 8 is fixedly connected with the waste chute 2, the two ends of the waste chute 2 are fixedly connected with the longitudinal slide bar 3, the length of the longitudinal slide bar 3 is equal to the depth of the waste chute 2, the longitudinal slide bar 3 is connected with the first chute 4 in a sliding manner, the first chute 4 is embedded in the inner surface of the lower end of the sand blasting machine main body 1, and the waste chute 2 can conveniently slide on the first chute 4 by the arrangement of the longitudinal slide bar 3; the vertical height of the first sliding chute 4 is lower than that of the second sliding chute 6, the second sliding chute 6 is fixedly connected with the waste chute 2, the inner end of the second sliding chute 6 is connected with the transverse sliding rod 5 in a sliding mode, the length of the transverse sliding rod 5 is equal to the distance between the second sliding chutes 6, the number of the second sliding chutes 6 is two, and the second sliding chutes 6 are arranged to facilitate sliding of the transverse sliding rods 5; the upper end of the transverse sliding rod 5 is fixedly connected with the movable plate 7, the upper end of the movable plate 7 is fixedly connected with the first rotating shaft 9, the length of the first rotating shaft 9 is equal to that of the second sliding groove 6, the movable plate 7 is arranged, so that the interior of the waste material tank can be conveniently opened and cleaned, and meanwhile, the falling of scraps can be blocked, so that the scraps can completely fall into the waste material tank 2; the front end of the sand blasting machine main body 1 is fixedly connected with the fixing plate 15, the through hole 16 penetrates through the outer surfaces of the front end and the rear end of the fixing plate 15, the inner end of the through hole 16 is connected with the sliding block 17 in a sliding mode, the size of the cross section of the sliding block 17 is equal to that of the through hole 16, and the sliding block 17 can conveniently slide by virtue of the through hole 16; the outer end of the sliding block 17 is fixedly connected with the limiting block 20, the section size of the limiting block 20 is larger than that of the sliding block 17, the rear end of the limiting block 20 is fixedly connected with the outer surface of the front end of the spring 21, the rear end of the spring 21 is fixedly connected with the inner surface of the rear end of the third sliding groove 22, and the limiting block 20 and the spring 21 can be conveniently moved by arranging the third sliding groove 22; the clamping grooves 18 are embedded in the inner surface of the lower end of the sliding block 17, the inner ends of the clamping grooves 18 are connected with the clamping blocks 19 in a clamping and embedding manner, the lower ends of the clamping blocks 19 are fixedly connected with the upper end of the sliding plate 12, the second handle 11 is embedded in the inner surface of the front end of the sliding plate 12, two ends of the sliding plate 12 are connected with the sliding grooves 13 in a sliding manner, the number of the sliding grooves 13 is two, the sliding grooves 13 are fixedly connected with the inner surfaces of two ends of the sand blasting bin 14, and the sand blasting bin 14 can be opened and closed conveniently by arranging the sliding plate 12; swing joint between the lower extreme of sandblast storehouse 14 and second pivot 10, and embedded in the surface of second pivot 10 in first constant head tank 23, through first constant head tank 23 sliding connection between first constant head tank 25 and the second pivot 10, and fixed connection between the outer end of first constant head tank 25 and the head end of brush board 27, the length of first constant head tank 25 equals the length of brush board 27, fixed connection between the tail end of brush board 27 and second locating piece 26, and sliding connection between the outer end of second locating piece 26 and brush board 27 through second constant head tank 24, and the embedded head end with brush board 27 of second constant head tank 24, through being provided with first constant head tank 25 and second locating piece 26, the convenience is fixed and is changed brush board 27.

When the scraps contained in the waste trough 2 need to be taken out, the first handle 8 is pulled outwards at first, so that the waste trough 2 slides outwards in the first sliding groove 4 along the longitudinal sliding rod 3 under the pulling of the first handle 8, the transverse sliding rod 5 slides in the second sliding groove 6 to drive the movable plate 7 to rotate under the rotation of the first rotating shaft 9, and therefore the waste trough 2 can be taken out conveniently, and the waste trough 2 and the derusting part at the upper end can be opened and cleaned conveniently through the rotation of the movable plate 7 under the rotation of the first rotating shaft 9; when the sand blasting bin 14 needs to be conveniently cleaned, the second handle 11 is pulled upwards, the second handle 11 pulls the sliding plate 12 upwards, the sliding plate 12 slides along the sliding groove 13, the sand blasting bin 14 is exposed, in the process that the sliding plate 12 moves upwards, the clamping block 19 at the upper end of the sliding plate 12 is clamped and embedded in the clamping groove 18 at the lower end of the sliding block 17 in the through hole 16 at the upper end of the fixing plate 15, so that the sliding and fixing of the sliding plate 12 are facilitated, and when the sand blasting bin 14 needs to be covered up by the sliding plate 12, the sliding block 17 is pressed inwards along the through hole 16, the limiting block 20 at the rear end of the sliding block 17 slides along the third sliding groove 22 and presses the spring 21, so that the clamping block 19 is removed from the clamping groove 18, and the sliding plate 12 can move downwards along the inner end of the fixing plate 15; when the brush plate 27 at the inner end of the rust removing sand blasting machine needs to be replaced, the second fixing block at the tail end of the brush plate 27 is moved along the second positioning groove 24, so that the tail end and the head end of the brush plate 27 are separated, and then the first positioning block 25 at the head end of the brush plate 27 is separated from the first positioning groove 23 on the outer surface of the second rotating shaft 10, so that a new brush plate 27 is replaced very conveniently.

In conclusion, through the matching of the waste trough 2, the longitudinal sliding rod 3, the first sliding chute 4, the transverse sliding rod 5, the second sliding chute 6, the movable plate 7 and the first rotating shaft 9, when the scraps contained in the waste trough 2 need to be taken out, the first handle 8 is pulled outwards at first, so that the waste trough 2 slides outwards in the first sliding chute 4 along the longitudinal sliding rod 3 under the pulling of the first handle 8, and the transverse sliding rod 5 slides in the second sliding chute 6 to drive the movable plate 7 to rotate under the rotation of the first rotating shaft 9, so that the waste trough 2 is convenient to take out, and the derusting parts of the waste trough 2 and the upper end are convenient to open and clean under the rotation of the first rotating shaft 9 through the movable plate 7; through the matching of the second handle 11, the sliding plate 12, the sliding groove 13, the sand blasting bin 14, the fixing plate 15, the through hole 16, the sliding block 17, the clamping groove 18, the clamping block 19, the limiting block 20, the spring 21 and the third sliding groove 22, when the interior of the sand blasting bin 14 needs to be conveniently cleaned, the second handle 11 is firstly pulled upwards, the second handle 11 is made to pull the sliding plate 12 upwards, the sliding plate 12 is made to slide along the sliding groove 13, the sand blasting bin 14 is made to be exposed, in the process of moving the sliding plate 12 upwards, the clamping block 19 at the upper end of the sliding plate 12 is made to be clamped and embedded in the clamping groove 18 at the lower end of the sliding block 17 in the through hole 16 at the upper end of the fixing plate 15, so that the sliding and fixing of the sliding plate 12 are facilitated, when the sliding plate 12 needs to cover the sand blasting bin 14, the sliding block 17 is pressed inwards along the through hole 16, the limiting block 20 at the rear end of the sliding, the latch 19 is removed from the catch 18 so that the slide plate 12 can be moved down along the inner end of the fixed plate 15; through second pivot 10, first constant head tank 23, second constant head tank 24, first locating piece 25, second locating piece 26 and brush board 27's cooperation, when needs are changed to the brush board 27 of rust cleaning sand blasting machine the inner, at first remove the second fixed block of brush board 27 tail end along second constant head tank 24, make the tail end and the head end separation of brush board 27, again with the first locating piece 25 of the head end of brush board 27 and be located the first constant head tank 23 of second pivot 10 surface between the separation, thereby replace new brush board 27, very convenience.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 invention, the scope of which is defined in the appended claims and their equivalents.