CN215027201U - Mobilizable construction dust keeper - Google Patents

Mobilizable construction dust keeper Download PDF

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Publication number
CN215027201U
CN215027201U CN202120859940.1U CN202120859940U CN215027201U CN 215027201 U CN215027201 U CN 215027201U CN 202120859940 U CN202120859940 U CN 202120859940U CN 215027201 U CN215027201 U CN 215027201U
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CN
China
Prior art keywords
placing plate
welded
dwang
servo motor
welding
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Expired - Fee Related
Application number
CN202120859940.1U
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Chinese (zh)
Inventor
何涛
彭一兵
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Anhui Gushan Construction Engineering Co ltd
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Anhui Gushan Construction Engineering Co ltd
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Priority to CN202120859940.1U priority Critical patent/CN215027201U/en
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Publication of CN215027201U publication Critical patent/CN215027201U/en
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Abstract

The application relates to the technical field of building construction, and discloses a movable building construction dustproof device, which comprises an installation box, wherein an installation cavity is arranged in the installation box, a water tank is welded at one side of the inner wall of the bottom end of the installation cavity, a servo motor is welded at the other side of the inner wall of the bottom end of the installation cavity, a placing plate is transversely welded on the inner side wall of the installation cavity, the placing plate is positioned right above the servo motor, a through hole is formed in one side of the upper surface of the placing plate, the output end of the servo motor penetrates through the through hole formed in one side of the upper surface of the placing plate, a fixed seat is welded at the other side of the upper surface of the placing plate, a blind hole is formed in the upper surface of the fixed seat, a rotating rod is arranged in the blind hole formed in the upper surface of the fixed seat, the rotating rod is in rotating fit with the fixed seat, and one end of the rotating rod, which is far away from the fixed seat, penetrates through the middle position of the upper surface of the installation box, the application can improve the effect of dustproof operation to ensure the environmental protection of construction.

Description

Mobilizable construction dust keeper
Technical Field
The application relates to the technical field of building construction, in particular to a movable building construction dustproof device.
Background
The building construction refers to production activities in the engineering construction implementation stage, is a construction process of various buildings, and can also be a process of changing various lines on design drawings into real objects at specified places, and comprises foundation engineering construction, main structure construction, roofing engineering construction, decoration engineering construction and the like, a large amount of dust and the like are generated in the existing building construction process due to construction operations of various aspects, a dustproof device is required to be used for treatment, the existing dustproof device usually uses an electric sprayer to carry out dustproof operation, but the existing dustproof device cannot effectively sense a construction area with dense dust, and needs manual fixed-point operation, is inconvenient to move operation, and meanwhile, the operation area of the sprayer in a certain working area has limitation, the operation efficiency is reduced, the dustproof operation effect is insufficient, and the environmental protection property of the building construction cannot be ensured, can not meet the requirements of people.
Chinese utility model patent that publication number is CN206721772U discloses a construction dust keeper, comprising a base plate, bottom plate upper portion left and right sides is fixedly connected with left branch dagger and right branch dagger respectively, left branch dagger and right branch dagger top fixedly connected with roof, the fixed storage water tank that is equipped with in right branch dagger left side.
To the correlation technique among the above-mentioned, the atomizer for dust keeper has the limitation in the working area of a certain work area, has reduced the operating efficiency, leads to the effect of dustproof operation not enough, can't ensure the feature of environmental protection of construction.
SUMMERY OF THE UTILITY MODEL
In order to improve the effect of dustproof operation to ensure the feature of environmental protection of construction, this application provides a mobilizable construction dust keeper.
The application provides a mobilizable building construction dust keeper adopts following technical scheme:
a movable dustproof device for building construction comprises an installation box, wherein an installation cavity is arranged in the installation box, a water tank is welded at one side of the inner wall at the bottom end of the installation cavity, a servo motor is welded at the other side of the inner wall at the bottom end of the installation cavity, a placing plate is transversely welded on the inner side wall of the installation cavity and is positioned right above the servo motor, a through hole is formed in one side of the upper surface of the placing plate, the output end of the servo motor penetrates through the through hole formed in one side of the upper surface of the placing plate, a fixed seat is welded at the other side of the upper surface of the placing plate, a blind hole is formed in the upper surface of the fixed seat, a rotating rod is arranged in the blind hole formed in the upper surface of the fixed seat, the rotating rod is in rotating fit with the fixed seat, one end, away from the fixed seat, of the rotating rod penetrates through the middle position of the upper surface of the installation box, a sprayer is transversely arranged on the upper surface of the rotating rod, be provided with slewing mechanism on servo motor's the output, slewing mechanism and dwang normal running fit, the installation case lower surface all welds all around has moving mechanism.
By adopting the technical scheme, the installation box, the water tank, the sprayer and the rotating mechanism are utilized, the water body is injected into the sprayer through the water delivery hose via the water tank, then the atomized water body is sprayed into the air by the sprayer, the atomized water body is utilized to adsorb dust and the like in the air, the effect of preventing the dust from overflowing is conveniently and effectively achieved, and then the turntable is driven to rotate by the rotation of the servo motor, thereby driving the adjusting rod to rotate, leading the pushing block to do reciprocating swing along with the adjusting rod, further driving the connecting head to rotate along with the adjusting rod, and then drive the tooth pattern piece and rotate with the tooth's socket piece and be connected, make the dwang reciprocating motion thereupon, and then make the atomizer do reciprocating motion thereupon and spray the operation, be convenient for improve the operational area of atomizer in a certain work area for the operating efficiency improves the effect of dustproof operation, is favorable to ensureing the feature of environmental protection of construction.
Preferably, slewing mechanism includes carousel, regulation pole, gag lever post, promotes piece, connector and a plurality of group's insection piece, the fixed cover of carousel is connected on servo motor's output, and the carousel is located and places the board directly over the position, it welds at the carousel upper surface to adjust the pole, the gag lever post welding is placed the board upper surface, and the gag lever post is located between fixing base and the carousel facade, promote the fixed cup joint of piece upper surface one end and circle on the gag lever post outer lane, and promote piece and gag lever post normal running fit, promote the piece and set up in the carousel upper surface, and promote the piece upper surface other end and seted up the spout, adjust the pole and set up in the spout that promotes the piece upper surface and set up, and adjust the spout cooperation of sliding that pole and promotion piece upper surface were seted up.
Through adopting above-mentioned technical scheme, the structure linkage nature is strong, is convenient for mutually support and rotates, makes the regulation pole drive and promotes the piece and do the reciprocating motion of circulation on the carousel.
Preferably, the connector is fan-shaped, and the connector welding is on pushing a lateral wall that the piece is close to the dwang, a plurality of groups the insection piece sets up on the connector is close to a lateral wall of dwang, and the insection piece is the cyclic annular distribution of equidistance around the center pin of connector, the welding has a plurality of groups tooth's socket piece on the dwang is close to one side outer lane of connector, the tooth's socket piece is the cyclic annular distribution of equidistance around the center pin of dwang, and the tooth's socket piece meshes the rotation with the insection piece mutually and is connected.
By adopting the technical scheme, the tooth pattern blocks are matched with the tooth groove blocks, so that the auxiliary linkage rotating rod can conveniently rotate in a reciprocating manner.
Preferably, the welding of water tank upper surface one side has the inlet tube that link up the installation case lateral wall, and the welding of water tank upper surface opposite side has the water delivery hose that link up the installation case upper surface, the one end that the water tank was kept away from to the water delivery hose is connected with the end of intaking of atomizer, the output of atomizer is located the one side of keeping away from the water delivery hose, the positive middle part position of installation case is provided with dust sensor.
Through adopting above-mentioned technical scheme, utilize dust sensor response early warning, when it detects that certain building construction area's dust content surpasses a definite value, be convenient for in time remove the atomizer to treating the operation area, be convenient for again through water tank and water delivery hose for a long time supplementary supply atomizer dustproof operation.
Preferably, moving mechanism includes sill bar, grip block, a set of branch, removes wheel, bolt, bull stick and sheet rubber, the welding of sill bar upper surface is at the install bin lower surface, the grip block is the shape of falling U, and the grip block welding is at the sill bar lower surface, the through-hole has been seted up to the positive lower part position of grip block, and is a set of branch is worn to locate in the through-hole that the grip block openly seted up, it is located the inner chamber of grip block lower surface to remove the wheel, and removes the wheel welding between a set of branch facade.
Through adopting above-mentioned technical scheme, promote the install bin to the drive removes the wheel and rotates around the grip block through branch, and then drives install bin and atomizer shift position thereupon, and the staff of being convenient for removes the atomizer and carries out dustproof operation to different building construction areas.
Preferably, the clamping block upper surface is located the one side of keeping away from the sill bar and is seted up threaded through hole, the threaded through hole threaded connection that bolt and clamping block upper surface were seted up, the bull stick transversely welds at the bolt upper surface, the sheet rubber transversely bonds at the bolt lower surface, and the sheet rubber is located between the clamping block and the moving wheel counterface.
Through adopting above-mentioned technical scheme, rotate the bull stick, make the bolt rotate thereupon to make the sheet rubber butt remove the wheel, produce frictional resistance through sheet rubber and removal wheel, the restriction of being convenient for is removed the wheel and is rotated, and then makes the position of placing of install bin fixed thereupon, simple structure, convenient operation.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the matching of the installation box, the water tank, the sprayer, the servo motor and the rotating mechanism, the water body is injected into the sprayer through the water delivery hose via the water tank, then the atomized water body is sprayed into the air by the sprayer, the atomized water body is utilized to adsorb dust and the like in the air, the effect of preventing the dust from overflowing is conveniently and effectively achieved, and then the turntable is driven to rotate by the rotation of the servo motor, thereby driving the adjusting rod to rotate, leading the pushing block to do reciprocating swing along with the adjusting rod, further driving the connecting head to rotate along with the adjusting rod, and then drive the tooth pattern piece and rotate with the tooth's socket piece and be connected, make the dwang reciprocating motion thereupon, and then make the atomizer do reciprocating motion thereupon and spray the operation, be convenient for improve the operational area of atomizer in a certain work area for the operating efficiency improves the effect of dustproof operation, is favorable to ensureing the feature of environmental protection of construction.
2. Through being equipped with the install bin, moving mechanism and dust sensor cooperate, through dust sensor response early warning, when it detects certain building construction region's dust content and surpasses a definite value, promote the install bin, thereby it rotates around the grip block through branch to drive the removal wheel, and then drive install bin and atomizer portable to treating the operation region thereupon, and then rotate the bull stick, make the bolt rotate thereupon, thereby make the sheet rubber butt remove the wheel, through the sheet rubber with remove the wheel and produce frictional resistance, be convenient for the restriction removes the wheel and rotates, and then make placing of install bin position fixed thereupon, moreover, the steam generator is simple in structure, and convenient for operation, the staff of being convenient for removes the atomizer and carries out dustproof operation to different building construction regions.
Drawings
FIG. 1 is a schematic structural view of an installation box of an embodiment of the application;
FIG. 2 is a schematic structural view of a rotating mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the structure of a dust sensor of an embodiment of the application;
fig. 4 is a schematic structural diagram of a moving mechanism according to an embodiment of the present application.
Description of reference numerals: 1. installing a box; 2. a mounting cavity; 3. a water tank; 4. a servo motor; 5. placing the plate; 6. a fixed seat; 7. rotating the rod; 8. a sprayer; 9. a rotating mechanism; 91. a turntable; 92. adjusting a rod; 93. a limiting rod; 94. a pushing block; 95. a connector; 96. a block of teeth; 10. a moving mechanism; 101. a bottom bar; 102. a clamping block; 103. a strut; 104. a moving wheel; 105. a bolt; 106. a rotating rod; 107. a rubber sheet; 11. a tooth groove block; 12. a water inlet pipe; 13. a water delivery hose; 14. a dust sensor.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses mobilizable construction dust keeper. Referring to fig. 1, a movable construction dust-proof device comprises an installation box 1, an installation cavity 2 is arranged in the installation box 1, a water tank 3 is welded at one side of the inner wall at the bottom end of the installation cavity 2, a servo motor 4 is welded at the other side of the inner wall at the bottom end of the installation cavity 2, a placing plate 5 is transversely welded on the inner wall of the installation cavity 2, the placing plate 5 is positioned right above the servo motor 4, a through hole is arranged at one side of the upper surface of the placing plate 5, the output end of the servo motor 4 is arranged in the through hole arranged at one side of the upper surface of the placing plate 5 in a penetrating manner, a fixed seat 6 is welded at the other side of the upper surface of the placing plate 5, a blind hole is arranged on the upper surface of the fixed seat 6, a rotating rod 7 is arranged in the blind hole arranged on the upper surface of the fixed seat 6, the rotating rod 7 is in rotating fit with the fixed seat 6, and one end of the rotating rod 7, which is far away from the fixed seat 6, is arranged at the middle position of the upper surface of the installation box 1 in a penetrating manner, dwang 7 upper surface transversely is provided with atomizer 8, be convenient for effectually play the effect that prevents the dust overflow and scatter, be provided with slewing mechanism 9 on servo motor 4's the output, slewing mechanism 9 and dwang 7 normal running fit, be convenient for improve the area of operation of atomizer 8 in a certain work area, accelerate the operating efficiency, improve the effect of dustproof operation, be favorable to ensureing the feature of environmental protection of construction, all welded moving mechanism 10 around the 1 lower surface of install bin, the staff of being convenient for removes atomizer 8 and carries out dustproof operation to different building construction regions, can restrict simultaneously and remove wheel 104 and rotate, make the position of placing of install bin 1 fixed thereupon.
Referring to fig. 1 and 2, the rotating mechanism 9 includes a turntable 91, an adjusting rod 92, a limiting rod 93, a pushing block 94, a connecting head 95 and a plurality of sets of gear-pattern blocks 96, the turntable 91 is fixedly sleeved on the output end of the servo motor 4, the turntable 91 is located right above the placing plate 5, the adjusting rod 92 is welded on the upper surface of the turntable 91, the limiting rod 93 is welded on the upper surface of the placing plate 5, the limiting rod 93 is located between the fixing seat 6 and the opposite surface of the turntable 91, one end of the upper surface of the pushing block 94 is fixedly sleeved on the outer ring of the limiting rod 93, the pushing block 94 is in rotating fit with the limiting rod 93, the pushing block 94 is arranged on the upper surface of the turntable 91, the other end of the upper surface of the pushing block 94 is provided with a sliding groove, the adjusting rod 92 is arranged in the sliding groove formed on the upper surface of the pushing block 94, and the adjusting rod 92 is in sliding fit with the sliding groove formed on the upper surface of the pushing block 94, so that the adjusting rod 92 and the adjusting rod and the pushing block 94 are in sliding fit with each other, so that the adjusting rod 92 drives the pushing block 94 to make a circular reciprocating motion on the rotating disc 91.
Referring to fig. 1, fig. 2, connector 95 is fan-shaped, and the welding of connector 95 is on pushing away a lateral wall that piece 94 is close to dwang 7, a plurality of groups profile block 96 sets up on the lateral wall that connector 95 is close to dwang 7, and profile block 96 is the cyclic annular distribution of equidistance around the center pin of connector 95, the welding has a plurality of groups slot block 11 on the dwang 7 is close to one side outer lane of connector 95, slot block 11 revolutes the center pin of dwang 7 and is the cyclic annular distribution of equidistance, and slot block 11 meshes the rotation with profile block 96 mutually and is connected, be convenient for supplementary linkage dwang 7 is reciprocating rotation.
Referring to fig. 1, fig. 3, the welding of 3 upper surface one sides of water tank has inlet tube 12 who link up 1 lateral wall of installing bin, and the welding of 3 upper surface opposite sides of water tank has water delivery hose 13 who link up 1 upper surface of installing bin, water delivery hose 13 keeps away from the one end of water tank 3 and is connected with the end of intaking of atomizer 8, be convenient for long-time supplementary supply atomizer 8 carries out dustproof operation, atomizer 8's output is located the one side of keeping away from water delivery hose 13, installing bin 1 openly middle part position is provided with dust sensor 14, be convenient for respond to early warning building construction regional dust content, in time remove atomizer 8 to treating the operation region, servo motor 4's model is IHSS, atomizer 8's model is BK, dust sensor 14's model is DFM.
Referring to fig. 1 and 4, moving mechanism 10 includes sill bar 101, grip block 102, a set of branch 103, remove wheel 104, bolt 105, bull stick 106 and sheet rubber 107, sill bar 101 upper surface welding is on the installation box 1 lower surface, grip block 102 is the shape of falling U, and grip block 102 welds the lower surface at sill bar 101, the through-hole has been seted up to grip block 102 openly lower part position, a set of branch 103 wears to locate the through-hole that grip block 102 openly seted up, remove wheel 104 and be located the inner chamber of grip block 102 lower surface, and remove wheel 104 welding between a set of branch 103 opposites, the staff of being convenient for removes atomizer 8 and carries out dustproof operation to different building construction areas.
Referring to fig. 4, a threaded through hole is formed in one side, away from the bottom rod 101, of the upper surface of the clamping block 102, the bolt 105 is in threaded connection with the threaded through hole formed in the upper surface of the clamping block 102, the rotating rod 106 is transversely welded to the upper surface of the bolt 105, the rubber sheet 107 is transversely adhered to the lower surface of the bolt 105, the rubber sheet 107 is located between the clamping block 102 and the opposite surface of the moving wheel 104, the moving wheel 104 is convenient to limit to rotate, and therefore the placing position of the installation box 1 is fixed accordingly, the structure is simple, and the operation is convenient.
The implementation principle of the movable building construction dustproof device is as follows: through the early warning of the induction of the dust sensor 14, when it is detected that the dust content in a certain building construction area exceeds a certain value, the installation box 1 is pushed, thereby driving the moving wheel 104 to rotate around the clamping block 102 through the supporting rod 103, further driving the installation box 1 and the sprayer 8 to move to the area to be operated, further rotating the rotating rod 106, further rotating the bolt 105, further enabling the rubber sheet 107 to abut against the moving wheel 104, generating friction resistance with the moving wheel 104 through the rubber sheet 107, facilitating the limitation of the rotation of the moving wheel 104, further enabling the placing position of the installation box 1 to be fixed, having simple structure and convenient operation, facilitating the workers to move the sprayer 8 to different building construction areas for dustproof operation, then injecting water into the sprayer 8 through the water delivery hose 13 through the water tank 3, further spraying the atomized water into the air through the sprayer 8, utilizing the atomized water to adsorb dust and the like in the air, be convenient for effectual effect that prevents the dust overflow and scatter of playing, it rotates through servo motor 4 again, thereby drive carousel 91 and rotate, and then drive regulation pole 92 and rotate, make and promote piece 94 and do reciprocating swing around gag lever post 93 thereupon, thereby it reciprocates to drive connector 95 and rotates thereupon, and then drive flute profile piece 96 and tooth's socket piece 11 and rotate and be connected, make dwang 7 reciprocate thereupon, and then make atomizer 8 do reciprocating motion thereupon and spray the operation, be convenient for improve the area of operation of atomizer 8 in a certain work area, accelerate the operating efficiency, improve the effect of dustproof operation, be favorable to ensureing the environmental protection effect to the building construction region.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (6)

1. The utility model provides a mobilizable construction dust keeper which characterized in that: comprises an installation box (1), an installation cavity (2) is arranged in the installation box (1), a water tank (3) is welded at one side of the inner wall of the bottom end of the installation cavity (2), a servo motor (4) is welded at the other side of the inner wall of the bottom end of the installation cavity (2), a placing plate (5) is transversely welded on the inner side wall of the installation cavity (2), the placing plate (5) is positioned right above the servo motor (4), a through hole is formed in one side of the upper surface of the placing plate (5), the output end of the servo motor (4) is arranged in the through hole formed in one side of the upper surface of the placing plate (5), a fixing seat (6) is welded at the other side of the upper surface of the placing plate (5), a blind hole is formed in the upper surface of the fixing seat (6), a rotating rod (7) is arranged in the blind hole formed in the upper surface of the fixing seat (6), and the rotating rod (7) is in running fit with the fixing seat (6), and dwang (7) are kept away from the one end of fixing base (6) and are worn to locate install bin (1) upper surface middle part position, dwang (7) upper surface transversely is provided with atomizer (8), be provided with slewing mechanism (9) on the output of servo motor (4), slewing mechanism (9) and dwang (7) normal running fit, install bin (1) lower surface all welds all around and has moving mechanism (10).
2. The movable construction dust-proof device of claim 1, wherein: the rotating mechanism (9) comprises a turntable (91), an adjusting rod (92), a limiting rod (93), a pushing block (94), a connector (95) and a plurality of groups of toothed blocks (96), the turntable (91) is fixedly sleeved on the output end of the servo motor (4), the turntable (91) is positioned right above the placing plate (5), the adjusting rod (92) is welded on the upper surface of the turntable (91), the limiting rod (93) is welded on the upper surface of the placing plate (5), the limiting rod (93) is positioned between the opposite surfaces of the fixing seat (6) and the turntable (91), one end of the upper surface of the pushing block (94) is fixedly sleeved on the outer ring of the limiting rod (93), the pushing block (94) is in running fit with the limiting rod (93), the pushing block (94) is arranged on the upper surface of the turntable (91), the other end of the upper surface of the pushing block (94) is provided with a sliding groove, the adjusting rod (92) is arranged in the sliding groove arranged on the upper surface of the pushing block (94), and the adjusting rod (92) is in sliding fit with a sliding groove formed in the upper surface of the pushing block (94).
3. A mobile construction dust guard according to claim 2, characterised in that: connector (95) are fan-shaped, and connector (95) welding is on pushing away a lateral wall that piece (94) is close to dwang (7), a plurality of groups line piece (96) set up on connector (95) are close to a lateral wall of dwang (7), and line piece (96) are the cyclic annular distribution of equidistance around the center pin of connector (95), the welding has a plurality of groups slot piece (11) on dwang (7) are close to one side outer lane of connector (95), slot piece (11) revolute the center pin of dwang (7) and are the cyclic annular distribution of equidistance, and slot piece (11) mesh with line piece (96) and rotate and be connected.
4. The movable construction dust-proof device of claim 1, wherein: the welding of water tank (3) upper surface one side has inlet tube (12) of lining up mounting box (1) lateral wall, and the welding of water tank (3) upper surface opposite side has water delivery hose (13) of lining up mounting box (1) upper surface, the one end that water tank (3) were kept away from in water delivery hose (13) is connected with the end of intaking of atomizer (8), the output of atomizer (8) is located the one side of keeping away from water delivery hose (13), mounting box (1) openly middle part position is provided with dust sensor (14).
5. The movable construction dust-proof device of claim 1, wherein: moving mechanism (10) include sill bar (101), grip block (102), a set of branch (103), remove wheel (104), bolt (105), bull stick (106) and sheet rubber (107), surface welding is on sill bar (101) lower surface in install bin (1), grip block (102) are the shape of falling U, and grip block (102) welding is at sill bar (101) lower surface, the through-hole has been seted up to grip block (102) positive lower part position, and is a set of in the through-hole that grip block (102) openly seted up is worn to locate by branch (103), it is located the inner chamber of grip block (102) lower surface to remove wheel (104), and removes wheel (104) welding between a set of branch (103) facade.
6. The movable construction dust-proof device of claim 5, wherein: the upper surface of the clamping block (102) is positioned on one side far away from the bottom rod (101) and is provided with a threaded through hole, the bolt (105) is in threaded connection with the threaded through hole formed in the upper surface of the clamping block (102), the rotating rod (106) is transversely welded on the upper surface of the bolt (105), the rubber sheet (107) is transversely bonded on the lower surface of the bolt (105), and the rubber sheet (107) is positioned between the clamping block (102) and the opposite surface of the moving wheel (104).
CN202120859940.1U 2021-04-25 2021-04-25 Mobilizable construction dust keeper Expired - Fee Related CN215027201U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120859940.1U CN215027201U (en) 2021-04-25 2021-04-25 Mobilizable construction dust keeper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120859940.1U CN215027201U (en) 2021-04-25 2021-04-25 Mobilizable construction dust keeper

Publications (1)

Publication Number Publication Date
CN215027201U true CN215027201U (en) 2021-12-07

Family

ID=79112574

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120859940.1U Expired - Fee Related CN215027201U (en) 2021-04-25 2021-04-25 Mobilizable construction dust keeper

Country Status (1)

Country Link
CN (1) CN215027201U (en)

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Granted publication date: 20211207

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