CN216864964U - Expansion joint dust collector for bridge maintenance - Google Patents

Expansion joint dust collector for bridge maintenance Download PDF

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Publication number
CN216864964U
CN216864964U CN202122535904.2U CN202122535904U CN216864964U CN 216864964 U CN216864964 U CN 216864964U CN 202122535904 U CN202122535904 U CN 202122535904U CN 216864964 U CN216864964 U CN 216864964U
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China
Prior art keywords
frame
dust
cleaning
expansion joint
assembly
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Active
Application number
CN202122535904.2U
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Chinese (zh)
Inventor
张秀梅
邱华
张志超
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Guangxi Shixinde Traffic Engineering Co ltd
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Guangxi Shixinde Traffic Engineering Co ltd
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Priority to CN202122535904.2U priority Critical patent/CN216864964U/en
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Abstract

The utility model belongs to the technical field of bridge equipment, and particularly relates to a dust removal device for an expansion joint for bridge maintenance, which comprises a frame, wherein a cleaning assembly is arranged in the frame, a dust collection box assembly, a dust collection assembly and an electric control assembly are sequentially bolted from left to right on the top of the frame, the electric control assembly is respectively and electrically connected with the cleaning assembly and the dust collection assembly, and a guide assembly is symmetrically bolted on the outer side wall of the frame; the cleaning assembly has a double cleaning mode, so that dust in an expansion joint can be conveniently cleaned, the cleaning effect is strong, the dust collection assembly absorbs dust generated during cleaning of the cleaning tool rest and the push block to achieve the purpose of dust removal, the dust collection box assembly collects dust and filters dust-containing gas, and the two groups of guide assemblies are designed to guide and limit the front and rear driving directions of the frame, so that the cleaning tool rest and the push block are always positioned in the expansion joint, and the cleaning effect is improved.

Description

Expansion joint dust collector for bridge maintenance
Technical Field
The utility model belongs to the technical field of bridge equipment, and particularly relates to a dust removal device for an expansion joint for bridge maintenance.
Background
The bridge expansion joint is a structural joint arranged at a proper position along the direction of a bridge construction joint for preventing a bridge member from generating cracks or being damaged due to climate temperature change (thermal expansion and cold contraction) in the construction process, the expansion joint equally divides the building member above a foundation into two independent parts, so that the building or the structure can horizontally expand and contract along the long direction, a large amount of external dust impurities easily fall into the expansion joint when in use, the expansion joint is blocked when expanding and contracting, the performance of the expansion joint is greatly influenced, impurities in the expansion joint need to be regularly cleaned, the expansion joint is usually cleaned manually by workers at present, the efficiency is low, and the labor intensity is high.
In order to solve the problem, the application provides an expansion joint dust collector for bridge maintenance.
SUMMERY OF THE UTILITY MODEL
To solve the problems set forth in the background art described above. The utility model provides a dust removal device for an expansion joint for bridge maintenance, which has the characteristic of being convenient for cleaning dust in the expansion joint.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an expansion joint dust collector for bridge maintenance, includes the frame, the frame embeds there is the clearance subassembly, turn right from a left side in proper order bolt fastening in proper order in the frame top has dust collection box subassembly, dust absorption subassembly and automatically controlled subassembly, automatically controlled subassembly respectively with clearance subassembly and dust absorption subassembly electric connection, frame lateral wall symmetry bolt fastening has the direction subassembly, just the same axis line is handled with the clearance subassembly to the direction subassembly.
As the preferred choice of the expansion joint dust removal device for bridge maintenance, the cleaning component comprises a cleaning tool rest, a transmission disc, a motor, a guide frame, a push block, a transmission rod, a driving disc and a transmission belt, the cleaning knife rest is rotationally connected with the inner wall of the frame, the transmission disc is sleeved outside the central shaft of the cleaning knife rest, the motor bolt is fastened on the outer side wall of the frame and corresponds to the position of the central shaft of the cleaning knife rest, the output end of the motor is fixedly connected with the central shaft of the cleaning knife rest, the guide frame bolt is fastened on the inner wall of the frame, the push block is connected on the inner wall of the guide frame in a sliding way and corresponds to the position of the cleaning knife rest, the driving disc is connected to the inner wall of the frame in a rotating mode and connected with one end, far away from the push block, of the transmission rod, and the driving disc corresponds to the transmission disc in position and is connected with the transmission disc through a transmission belt.
Preferably, the dust collection box assembly comprises a box body, a filter screen frame and an air outlet cylinder cover, the box body is fastened at the top of the frame through bolts, the filter screen frame is embedded at the top of the box body, the air outlet cylinder cover is fastened at the top of the box body through bolts and is positioned on the outer side of the filter screen frame, and the air outlet cylinder cover is communicated with the interior of the box body.
Preferably, the dust collection assembly for the expansion joint for bridge maintenance comprises a fixed pipe frame, a dust hood, a fan and a dust collection pipe, wherein the fixed pipe frame is fastened at the top of a frame through bolts and is positioned on one side of a box body, the dust hood is fastened on the inner wall of the frame through symmetrical bolts and is respectively positioned on the outer sides of a cleaning knife rest and a push block, the fans are fastened at the top of the dust hood through bolts and are communicated with the inside of the dust hood, the dust collection pipe is uniformly screwed on the surface of the fixed pipe frame, one end of the dust collection pipe penetrates into the box body and is communicated with the inside of the box body, and the other end of the dust collection pipe penetrates into the frame and is communicated with one end of the fan.
Preferably, the electric control assembly comprises an outer cover, a storage battery and a controller, the outer cover is fastened to the top of the frame through bolts and located on one side of the fixed pipe frame, the storage battery is clamped and fixed to the inner wall of the outer cover, the controller is fastened to the top of the outer cover through bolts, the storage battery is electrically connected with the controller, and the controller is electrically connected with the motor and the fan respectively.
Preferably, the guide assembly comprises a fixing block, a threaded shaft rod and a limiting wheel, the fixing block is fastened on the outer side wall of the frame through bolts, the threaded shaft rod is in threaded connection with the inner wall of the fixing block, the limiting wheel is rotatably connected to the bottom of the threaded shaft rod, and the limiting wheel, the cleaning tool rest and the pushing block are located on the same axial line.
Preferably, the expansion joint dust removal device for bridge maintenance is characterized in that the net brushes are uniformly fastened on the bottom of the frame through bolts.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the cleaning assembly is arranged, when the cleaning assembly is used, the controller controls the motor to run in a power-on mode, the motor rotates in a power-on mode to drive the cleaning tool rest and the transmission disc to rotate synchronously, dust in the telescopic gap is scattered by the rotation of the cleaning tool rest, the dust can be conveniently sucked by the subsequent dust suction assembly, the transmission disc rotates to drive the driving disc to rotate synchronously through the transmission belt, the driving disc rotates to drive the push block to reciprocate on the inner wall of the guide frame through the transmission rod synchronously, the dust on the inner wall of the expansion joint is further cleaned through the reciprocating motion of the push block, the cleaning assembly is simple to operate and good in cleaning effect, the dust in the expansion joint can be cleaned conveniently through the design of the cleaning assembly, and the cleaning effect is strong and good in use effect through a double cleaning mode;
(2) the dust collection box is provided with the dust collection box component and the dust collection component, when the dust collection box is used, the controller controls a plurality of groups of fans to operate simultaneously, the fans generate suction force and absorb dust in the area near the dust collection cover, the dust collection cover is respectively and symmetrically arranged at the outer sides of the cleaning tool rest and the push block, so that the dust generated when the cleaning tool rest and the push block are cleaned can be absorbed to achieve the purpose of dust collection, the absorbed dust is conveyed into the box body through the dust collection pipe to be collected, the flow rate of the dust entering the box body is reduced after the dust is guided by the guide plate, the dust and the air are separated under the action of gravity, the dust with a heavy point is accumulated at the bottom of the box body, the dust with a light point is in contact with the filter screen frame under the driving of air flow and stops flowing on the surface of the filter screen frame, the air is filtered by the filter screen frame to become clean air and is exhausted out of the box body through the air outlet cylinder cover, the whole operation is simple, the use effect is good;
(3) the utility model is provided with the guide assembly, when in use, the frame is moved to the expansion joint, the limiting wheel is aligned with the expansion joint, then the threaded shaft rod is rotated downwards, the threaded shaft rod rotates and descends to drive the limiting wheel to synchronously move downwards until the limiting wheel is contacted with the bottom of the expansion joint, and the two groups of guide assemblies are designed to conveniently play a role in guiding and limiting the front and back running directions of the frame, so that the cleaning tool rest and the push block are always positioned in the expansion joint, the cleaning effect is improved, the operation is simple, and the use effect is good.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a cleaning assembly according to the present invention;
FIG. 3 is a schematic view of the dust box assembly of the present invention;
fig. 4 is a schematic structural view of a guide assembly according to the present invention.
In the figure: 1. a frame; 2. cleaning the assembly; 21. cleaning the tool rest; 22. a drive plate; 23. a motor; 24. a guide frame; 25. a push block; 26. a transmission rod; 27. a drive disc; 28. a transmission belt; 3. a dust collection box assembly; 31. a box body; 32. a filter screen frame; 33. an air outlet cylinder cover; 4. a dust collection assembly; 41. fixing the pipe frame; 42. a dust hood; 43. a fan; 44. a dust collection pipe; 5. an electronic control assembly; 51. a housing; 52. a battery; 53. a controller; 6. a guide assembly; 61. a fixed block; 62. a threaded shaft; 63. a limiting wheel; 7. and (4) brushing the net.
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.
Example 1
Please refer to fig. 1-4;
the utility model provides an expansion joint dust collector for bridge maintenance, includes frame 1, and frame 1 embeds has clearance subassembly 2, and 1 top of frame turns right from a left side and has dust collection box subassembly 3, dust absorption subassembly 4 and automatically controlled subassembly 5 in proper order by bolt fastening in proper order, and automatically controlled subassembly 5 respectively with clearance subassembly 2 and dust absorption subassembly 4 electric connection, and 1 lateral wall of frame symmetry bolt fastening has guide assembly 6, and on guide assembly 6 and clearance subassembly 2 located the same axis.
In this embodiment: when the device is used, the frame 1 is moved to the expansion joint, the limiting wheel 63 is aligned with the expansion joint, then the threaded shaft rod 62 is rotated downwards, the threaded shaft rod 62 rotates and descends to drive the limiting wheel 63 to synchronously move downwards until the threaded shaft rod is contacted with the bottom of the expansion joint, the two groups of guide components 6 are designed to guide and limit the front and back running directions of the frame 1, so that the cleaning tool rest 21 and the push block 25 are always positioned in the expansion joint, the cleaning effect is improved, the operation is simple, the use effect is good, then the motor 23 is controlled to be electrified and operated through the controller 53, the motor 23 is electrified and rotated to drive the cleaning tool rest 21 and the transmission disc 22 to synchronously rotate, the dust in the expansion joint is scattered through the rotation of the cleaning tool rest 21, the subsequent dust collection component 4 can be conveniently sucked, the transmission disc 22 synchronously drives the driving disc 27 to rotate through the transmission belt 28, the driving disc 27 synchronously drives the push block 25 to reciprocate on the inner wall of the guide frame 24 through the transmission rod 26, the dust on the inner wall of the expansion joint is further cleaned through the reciprocating motion of the push block 25, the operation is simple, the cleaning effect is good, the cleaning assembly 2 is designed to facilitate the cleaning of the dust in the expansion joint, the cleaning effect is strong in a double cleaning mode, the using effect is good, in the cleaning process, the controller 53 controls the multiple groups of fans 43 to operate simultaneously, the fans 43 operate to generate suction and absorb the dust in the area near the dust hood 42, the dust hood 42 is respectively and symmetrically arranged on the outer sides of the cleaning knife rest 21 and the push block 25, the dust generated in the cleaning of the cleaning knife rest 21 and the push block 25 can be absorbed to achieve the purpose of dust removal, the absorbed dust is conveyed into the box body 31 through the dust absorption pipe 44 to be collected, the dust entering the box body 31 is guided by the guide plate, the flow rate is reduced, the dust and air separation is carried out under the action of gravity, and a little dust is accumulated at the bottom of the box body 31, the light dust is driven by the airflow to contact with the filter screen frame 32 and stop flowing on the surface of the filter screen frame 32, and the gas is filtered by the filter screen frame 32 to become clean gas and is discharged out of the box body 31 through the air outlet barrel cover 33.
Further, the method comprises the following steps:
in an alternative embodiment: the cleaning assembly 2 comprises a cleaning knife rest 21, a transmission disc 22, a motor 23, a guide frame 24, a push block 25, a transmission rod 26, a driving disc 27 and a transmission belt 28, wherein the cleaning knife rest 21 is rotatably connected to the inner wall of the frame 1, the transmission disc 22 is sleeved on the outer side of a central shaft of the cleaning knife rest 21, the motor 23 is fastened on the outer side wall of the frame 1 through bolts and corresponds to the central shaft of the cleaning knife rest 21, the output end of the motor 23 is fixedly connected with the central shaft of the cleaning knife rest 21, the guide frame 24 is fastened on the inner wall of the frame 1 through bolts, the push block 25 is slidably connected to the inner wall of the guide frame 24 and corresponds to the position of the cleaning knife rest 21, the transmission rod 26 is rotatably connected to the surface of the push block 25, the driving disc 27 is rotatably connected to the inner wall of the frame 1 and is connected with one end, far away from the push block 25, of the driving disc 27 corresponds to the position of the transmission disc 22 and is connected with the transmission disc 22 through the transmission belt 28.
In this embodiment, it should be noted that: during the use, controller 53 control motor 23 circular telegram operation, thereby motor 23 circular telegram is rotatory to drive clearance knife rest 21 and driving disc 22 synchronous revolution, the dust in the flexible gap is broken up in the rotation of clearance knife rest 21, be convenient for follow-up dust absorption component 4 to absorb, driving disc 22 is rotatory then to drive driving disc 27 rotatory through drive belt 28 synchronous, driving disc 27 is rotatory to drive ejector pad 25 in step through transfer line 26 and is reciprocating motion at the 24 inner walls of guide frame, further clear up the dust on the expansion joint inner wall through ejector pad 25 reciprocating motion, and is simple in operation, and the cleaning effect is good, the dust in the expansion joint is convenient for clear up in the design of clearance subassembly 2, the dual clearance mode clearance effect is strong, excellent in use effect.
Further, the following steps:
in an alternative embodiment: dust collection box subassembly 3 is including box 31, filter screen frame 32 and air outlet cylinder cover 33, and box 31 bolt-up is at 1 top of frame, and filter screen frame 32 is embedded at the box 31 top, and air outlet cylinder cover 33 bolt-up is at the box 31 top and is located the filter screen frame 32 outside, and air outlet cylinder cover 33 is linked together with box 31 is inside.
In this embodiment, it should be noted that: the housing 31 is of a removable design.
In this embodiment, it should be noted that: a baffle (not shown) is built in the case 31.
In this embodiment, it should be noted that: the outer side wall of the box 31 is provided with a dust exhaust port (not shown in the figure).
In this embodiment, it should be noted that: during the use, the dust is carried to in the box 31 under dust absorption component 4's effect, the dust that enters into the inside of box 31 is followed the guide plate and is led the back velocity of flow and is slowed down and carry out the dust and gas separation under the action of gravity, the dust of the weight is piled up in the bottom of box 31, the dust of the light weight is contacted with filter screen frame 32 and stops flowing on filter screen frame 32 surface under the drive of air current, gas then becomes clean gas and passes through air outlet cylinder lid 33 discharge box 31 outsidely after filtering through filter screen frame 32, dust collection box component 3 is convenient for collect the processing to the dust, and easy operation, excellent in use effect.
Further, the method comprises the following steps:
in an alternative embodiment: the dust collection assembly 4 comprises a fixed pipe frame 41, a dust collection cover 42, a fan 43 and a dust collection pipe 44, the fixed pipe frame 41 is fastened at the top of the frame 1 through bolts and is positioned on one side of the box body 31, the dust collection cover 42 is fastened on the inner wall of the frame 1 through symmetrical bolts and is positioned on the outer sides of the cleaning knife rest 21 and the pushing block 25 respectively, the fans 43 are fastened at the top of the dust collection cover 42 through bolts and are communicated with the inside of the dust collection cover 42, the dust collection pipe 44 is uniformly connected on the surface of the fixed pipe frame 41 through threads, one end of the dust collection pipe 44 penetrates into the box body 31 and is communicated with the inside of the box body 31, and the other end of the dust collection pipe penetrates into the frame 1 and is communicated with one end of the fan 43.
In this embodiment, it should be noted that: during the use, the controller 53 controls the multiunit fan 43 to operate simultaneously, the fan 43 operates and produces suction and absorbs the dust in the region near the suction hood 42, because the suction hood 42 is respectively and symmetrically arranged outside the cleaning knife rest 21 and the push block 25, so can absorb the dust produced when the cleaning knife rest 21 and the push block 25 are cleaned, reach the dust removal effect, then the dust after absorbing is carried to the box 31 in through the dust absorption pipe 44 and is collected, the design easy operation of the dust absorption assembly 4, it is convenient to use, thereby absorb the dust produced when cleaning the cleaning knife rest 21 and the push block 25 through setting up the suction hood 42 outside the cleaning knife rest 21 and the push block 25, reach the dust removal purpose, the use effect is good.
Further, the method comprises the following steps:
in an alternative embodiment: the electric control assembly 5 comprises an outer cover 51, a storage battery 52 and a controller 53, wherein the outer cover 51 is fastened on the top of the frame 1 through bolts and is positioned on one side of the fixed pipe frame 41, the storage battery 52 is clamped and fixed on the inner wall of the outer cover 51, the controller 53 is fastened on the top of the outer cover 51 through bolts, the storage battery 52 is electrically connected with the controller 53, and the controller 53 is electrically connected with the motor 23 and the fan 43 respectively.
In this embodiment, it should be noted that: during the use with controller 53 with battery 52 be connected, then according to actual conditions through controller 53 respectively control motor 23 and fan 43 operation can, automatically controlled subassembly 5 design data is accurate, the stable performance, simple operation and excellent in use effect.
Further, the method comprises the following steps:
in an alternative embodiment: the guide assembly 6 comprises a fixing block 61, a threaded shaft rod 62 and a limiting wheel 63, the fixing block 61 is fastened on the outer side wall of the frame 1 through a bolt, the threaded shaft rod 62 is connected to the inner wall of the fixing block 61 through a thread, the limiting wheel 63 is connected to the bottom of the threaded shaft rod 62 in a rotating mode, and the limiting wheel 63 and the cleaning tool rest 21 and the push block 25 are located on the same axis.
In this embodiment, it should be noted that: rotatory screw thread axostylus axostyle 62 downwards during the use, screw thread axostylus axostyle 62 rotatory drop and drive spacing round 63 synchronous downstream, until contacting with the expansion joint bottom, two sets of direction subassembly 6 designs are convenient for play direction and limiting displacement to the direction of traveling around frame 1 to make clearance knife rest 21 and ejector pad 25 be in the expansion joint all the time, improve the clearance effect, easy operation, excellent in use effect.
Further, the method comprises the following steps:
in an alternative embodiment: the bottom of the frame 1 is evenly bolted with a net brush 7.
In this embodiment, it should be noted that: the design of the net brush 7 is convenient for blocking sundries inside the frame 1 from running out, is convenient for post-processing, can reduce dust diffusion and improve dust collection effect, and has good use effect.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a bridge maintenance is with expansion joint dust collector, includes frame (1), its characterized in that: frame (1) embeds there is clearance subassembly (2), turn right from a left side in proper order at frame (1) top and have dust collection box subassembly (3), dust absorption subassembly (4) and automatically controlled subassembly (5), automatically controlled subassembly (5) respectively with clearance subassembly (2) and dust absorption subassembly (4) electric connection, frame (1) lateral wall symmetry bolt-up has guide assembly (6), just same axis is located with clearance subassembly (2) in guide assembly (6).
2. The expansion joint dust collector for bridge maintenance of claim 1, wherein: the cleaning assembly (2) comprises a cleaning knife rest (21), a transmission disc (22), a motor (23), a guide frame (24), a push block (25), a transmission rod (26), a driving disc (27) and a transmission belt (28), the cleaning knife rest (21) is rotatably connected to the inner wall of the frame (1), the transmission disc (22) is sleeved on the outer side of a central shaft of the cleaning knife rest (21), the motor (23) is fastened on the outer side wall of the frame (1) through bolts and corresponds to the position of the central shaft of the cleaning knife rest (21), the output end of the motor (23) is fixedly connected with the central shaft of the cleaning knife rest (21), the guide frame (24) is fastened on the inner wall of the frame (1) through bolts, the push block (25) is slidably connected to the inner wall of the guide frame (24) and corresponds to the position of the cleaning knife rest (21), the transmission rod (26) is rotatably connected to the surface of the push block (25), the driving disc (27) is rotatably connected to the inner wall of the frame (1) and is far away from one end of the push block (25) with the transmission rod (26) The driving disk (27) is connected with the transmission disk (22) in a position corresponding to the transmission disk (22) and is connected with the transmission disk (22) through a transmission belt (28).
3. The expansion joint dust collector for bridge maintenance of claim 2, wherein: dust collection box subassembly (3) are including box (31), filter screen frame (32) and air-out cover (33), box (31) bolt-up is at frame (1) top, filter screen frame (32) are embedded at box (31) top, air-out cover (33) bolt-up is at box (31) top and is located filter screen frame (32) outside, air-out cover (33) is linked together with box (31) inside.
4. The expansion joint dust collector for bridge maintenance of claim 3, wherein: dust absorption subassembly (4) are including fixed pipe support (41), suction hood (42), fan (43) and dust absorption pipe (44), fixed pipe support (41) bolt-up is at frame (1) top and is located box (31) one side, suction hood (42) symmetry bolt-up is in frame (1) inner wall and is located clearance knife rest (21) and ejector pad (25) outside respectively, equal bolt-up of fan (43) is linked together at suction hood (42) top and with suction hood (42) inside, the even threaded connection of dust absorption pipe (44) is on fixed pipe support (41) surface, dust absorption pipe (44) one end is run through into in box (31) and is linked together with box (31) inside, and the other end runs through into in frame (1) and is linked together with fan (43) one end.
5. The expansion joint dust collector for bridge maintenance of claim 4, wherein: automatically controlled subassembly (5) is including dustcoat (51), battery (52) and controller (53), dustcoat (51) bolt-up is at frame (1) top and be located fixed pipe support (41) one side, battery (52) joint is fixed at dustcoat (51) inner wall, controller (53) bolt-up is at dustcoat (51) top, battery (52) are connected with controller (53) electricity, controller (53) respectively with motor (23) and fan (43) electric connection.
6. The expansion joint dust collector for bridge maintenance of claim 5, wherein: the guide assembly (6) comprises a fixing block (61), a threaded shaft rod (62) and a limiting wheel (63), the fixing block (61) is fastened on the outer side wall of the frame (1) through bolts, the threaded shaft rod (62) is in threaded connection with the inner wall of the fixing block (61), the limiting wheel (63) is rotatably connected to the bottom of the threaded shaft rod (62), and the limiting wheel (63) and the cleaning tool rest (21) and the push block (25) are located on the same axial line.
7. The expansion joint dust collector for bridge maintenance of claim 6, wherein: and a net brush (7) is uniformly fastened at the bottom of the frame (1) by bolts.
CN202122535904.2U 2021-10-21 2021-10-21 Expansion joint dust collector for bridge maintenance Active CN216864964U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122535904.2U CN216864964U (en) 2021-10-21 2021-10-21 Expansion joint dust collector for bridge maintenance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122535904.2U CN216864964U (en) 2021-10-21 2021-10-21 Expansion joint dust collector for bridge maintenance

Publications (1)

Publication Number Publication Date
CN216864964U true CN216864964U (en) 2022-07-01

Family

ID=82120812

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122535904.2U Active CN216864964U (en) 2021-10-21 2021-10-21 Expansion joint dust collector for bridge maintenance

Country Status (1)

Country Link
CN (1) CN216864964U (en)

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