CN107044509B - Transmission connecting frame for road isolation fence ground cleaning device - Google Patents
Transmission connecting frame for road isolation fence ground cleaning device Download PDFInfo
- Publication number
- CN107044509B CN107044509B CN201710286825.8A CN201710286825A CN107044509B CN 107044509 B CN107044509 B CN 107044509B CN 201710286825 A CN201710286825 A CN 201710286825A CN 107044509 B CN107044509 B CN 107044509B
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- Prior art keywords
- connecting bracket
- horizontal
- gear
- conical gear
- transmission
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/02—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
- E01H1/05—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes
- E01H1/053—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes having vertical axes
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/02—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
- E01H1/05—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes
- E01H1/056—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes having horizontal axes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a transmission connecting frame for a road isolation fence ground cleaning device, which consists of a connecting bent plate, a connecting bracket assembly and a gear transmission mechanism; the gear transmission mechanism consists of a driving straight gear, a connecting bracket center large conical gear, a horizontal transmission conical gear, a disk brush driving conical gear, a horizontal shaft, a disk brush connecting shaft and a connecting bracket main shaft, wherein the connecting bracket center large straight gear and the connecting bracket center large conical gear are coaxially connected with the top end of the connecting bracket main shaft in a coaxial way, and the connecting bracket center large straight gear is meshed with the driving straight gear; the horizontal shaft is arranged on a horizontal bracket of the connecting bracket assembly, a horizontal transmission bevel gear at one end of the horizontal shaft is meshed with a large bevel gear at the center of the connecting bracket, and a horizontal transmission bevel gear at the other end of the horizontal shaft is meshed with a disk brush driving bevel gear. The driving connecting frame drives the disc brush to work, so that the disc brush can effectively cross the support upright post of the isolation fence, and the cleaning operation is ensured to be smoothly carried out.
Description
Technical Field
The invention belongs to the technical field of urban cleaning environment-friendly equipment, is suitable for road cleaning devices, and particularly relates to a transmission connecting frame for a road isolation fence ground cleaning device.
Background
In urban sanitation work at first, the road isolation fence is cleaned by adopting a manual scrubbing mode, so that the labor intensity is high, potential safety hazards exist, and a lot of burden is added to sanitation workers. In recent years, the road isolation fence cleaner well solves the problem, but muddy water left when the road isolation fence cleaner works also flows to a road below the isolation fence, and muddy water always remains on the road surface right below the isolation fence and cannot be collected and cleaned at one time, so that the area needs to be cleaned for the second time, and therefore, the area becomes a dead angle which cannot be cleaned by adopting the conventional road isolation fence cleaner. Typically, this area is cleaned twice, either manually or by high pressure water, wherein, the manual cleaning has high working strength, and the personal safety risk of a cleaner is increased; when the high-pressure water is used for cleaning the area, dust is flushed to the vicinity of the middle position of the road, so that the suction sweeper on the other lane cannot collect the dust in real time, and various dust is still generated along with the vehicle after the water in the area is evaporated, thereby causing secondary pollution to the environment and not achieving the purpose of high-efficiency cleaning.
Therefore, the development of a novel road isolation fence ground cleaning device is necessary, in the design process of the road isolation fence ground cleaning device, the design of a transmission connection part is the key of the efficient operation of the whole device, because of the specificity of a road isolation fence structure, each group of isolation fences are required to be supported and connected by a column provided with a guardrail base, the guardrail base can prevent the cleaning brush of the road isolation fence ground cleaning device from working, the bending of bristles is caused, the bottom surface near the base cannot be thoroughly cleaned, cleaning operation is prevented, the service life of the cleaning brush can be shortened, and the problem caused by the special condition cannot be solved by the existing transmission connection device.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a transmission connecting frame for a road isolation fence ground cleaning device. The technical scheme of the invention is as follows:
the transmission connecting frame is used for the road isolation fence ground cleaning device and consists of a connecting bent plate 7, a connecting bracket assembly 3 and a gear transmission mechanism;
the gear transmission mechanism consists of a driving spur gear 5, a connecting bracket central large spur gear 6, a connecting bracket central large conical gear 8, a horizontal transmission conical gear 9, a disk brush driving conical gear 11, a horizontal shaft 12, a disk brush connecting shaft 13 and a connecting bracket main shaft 14;
the driving straight gear 5 is positioned below the connecting bent plate 7, is coaxially connected with an output shaft of a motor 4 of the road isolation fence ground sweeping device, and is coaxially fixed with a connecting bracket center large straight gear 6 and a connecting bracket center large conical gear 8, and is coaxially connected with the top end of a connecting bracket main shaft 14, and the connecting bracket center large straight gear 6 positioned above the connecting bracket center large conical gear 8 is meshed with the driving straight gear 5;
the disc brush driving conical gear 11 is coaxially connected with a disc brush 1 of the road isolation fence ground cleaning device through a disc brush connecting shaft 13;
the disc brush connecting support assembly 3 is provided with horizontal supports in a radial mode in the circumferential direction, the horizontal shaft 12 is arranged on the horizontal support of the connecting support assembly 3, the horizontal transmission conical gears 9 are coaxially arranged at two ends of the horizontal shaft 12, the horizontal transmission conical gear 9 at one end is meshed with the large conical gear 8 at the center of the connecting support, and the horizontal transmission conical gear 9 at the other end is meshed with the disc brush driving conical gear 11.
The driving connecting frame is used for the road isolation fence ground cleaning device, wherein three horizontal brackets are uniformly distributed in the radial direction of the connecting bracket assembly 3, and three groups of disc brushes 1 of the road isolation fence ground cleaning device are correspondingly arranged and are respectively assembled and connected at the tail ends of the three horizontal brackets of the connecting bracket assembly 3;
the connecting bracket main shaft 14 is positioned at the center of the connecting bracket assembly 3 and is fixedly connected with the connecting bracket assembly 3.
A transmission connecting frame for a road isolation fence ground cleaning device is characterized in that a horizontal shaft sleeve 10 is arranged on the outer side of a horizontal shaft 12, and a shield 2 is further arranged at a position where a disc brush driving conical gear 11 is meshed with a horizontal transmission conical gear 9.
Compared with the prior art, the invention has the beneficial effects that:
1. the road isolation fence ground cleaning device using the transmission connecting frame is arranged on a road isolation fence cleaning machine, so that the functions of the road isolation fence cleaning machine are perfected, and synchronous and efficient cleaning of isolation fences and the road surface under the isolation fences is realized.
2. In the process of cleaning and advancing of the sweeper, the road isolation fence ground cleaning device is adjusted to a proper working position, namely, the brush hairs of the disc brush extend through the road isolation fence, normal operation of the disc brush and the connecting bracket assembly of the transmission connecting frame is not influenced, smooth cleaning operation is realized through the mutual matching rotation of the connecting bracket assembly of the transmission connecting frame and the disc brush, and dust and garbage after cleaning are sucked into a garbage storage and transportation room through the sucking disc device of the external sweeper, so that efficient cleaning without secondary pollution is realized.
3. The transmission connecting frame for the road isolation fence ground cleaning device adopts the design that the connecting bracket assembly and the disc brush rotate reversely, so that the connecting bracket assembly and the disc brush smoothly surmount obstacles in the cleaning running process of the cleaning device, namely, when the connecting bracket assembly and the road isolation fence are in instant contact, the cleaning device effectively surmount the isolation fence supporting upright post through the running of the cleaning vehicle and the rotating direction of the connecting bracket assembly, and the cleaning operation is ensured to be smoothly carried out.
4. The transmission connection frame for the road isolation fence ground cleaning device is ingenious in design and simple in structure, so that the cleaning device is easy to manufacture, install and detach, is quite convenient to maintain, can be directly installed on an existing road isolation fence cleaning machine, and is quite easy to popularize and use.
Drawings
FIG. 1 is a front view of a drive connection for a road partition floor cleaning apparatus according to the present invention;
FIG. 2 is an enlarged view of a part of the structure of the connecting bracket assembly and the transmission mechanism in the transmission connecting bracket for the road isolation fence ground cleaning device of the invention;
FIG. 3 is a schematic perspective view of a road isolation fence floor cleaning device with a transmission connection frame according to the present invention;
FIG. 4 is a front view of a road partition rail floor sweeping device with a drive connection rack according to the present invention;
FIG. 5 is a schematic view of the operation process of the road isolation fence ground sweeping device provided with the transmission connecting frame of the invention;
in the figure:
1-a disc brush; 2-a shield; 3-a connection bracket assembly;
4-motor; 5-driving spur gears; 6, connecting a large spur gear at the center of the bracket;
7-connecting a bent plate; 8-connecting a large conical gear at the center of the bracket; 9-horizontal drive bevel gears;
10-a horizontal shaft sleeve; 11-a disk brush driving bevel gear; 12-horizontal axis;
13-a disc brush connecting shaft; 14-connecting the support main shaft.
Detailed Description
For further explanation of the technical scheme of the invention, the specific embodiments of the invention are as follows in combination with the accompanying drawings of the specification:
as shown in FIG. 1, the invention discloses a transmission connecting frame for a road isolation fence ground cleaning device, which consists of a connecting bent plate 7, a connecting bracket assembly 3 and a gear transmission mechanism; the gear transmission mechanism consists of a driving spur gear 5, a connecting bracket central large spur gear 6, a connecting bracket central large conical gear 8, a horizontal transmission conical gear 9, a disk brush driving conical gear 11, a horizontal shaft 12, a disk brush connecting shaft 13 and a connecting bracket main shaft 14.
As shown in fig. 3, the motor 4 is used as a power source of the road isolation fence ground cleaning device, the body of the motor 4 is assembled and fixed on the connecting bent plate 7, and the output shaft of the motor 4 passes through the connecting bent plate 7 to be in transmission connection with the lower gear transmission mechanism so as to output power; the connecting bracket main shaft 14 is connected with the gear transmission mechanism and the connecting bracket assembly 3, and transmitting power; the connecting bracket assembly 3 is a welding assembly, the connecting bracket assembly 3 is uniformly welded with three horizontal brackets in radial direction along the circumferential direction, a pair of supporting seats are arranged at the two ends above each horizontal bracket; the disc brush 1 of the road isolation fence ground cleaning device is provided with three groups which are respectively assembled and connected with the tail ends of three horizontal brackets of the connecting bracket assembly 3.
As shown in fig. 2, in the gear transmission mechanism, the driving spur gear 5 is located below the connecting bending plate 7 and is coaxially connected with the output shaft of the motor 4, and the connecting bracket center spur gear 6 and the connecting bracket center large conical gear 8 are coaxially fixed; the connecting bracket main shaft 14 is positioned at the center of the transmission connecting frame, the connecting bracket main shaft 14 is vertically arranged, the top end of the connecting bracket main shaft is coaxially connected with the connecting bracket center large spur gear 6 and the connecting bracket center large conical gear 8, and the bottom end of the connecting bracket main shaft is fixedly connected with the connecting bracket assembly 3; the connecting bracket center large spur gear 6 is positioned above the connecting bracket center large conical gear 8, and the connecting bracket center large spur gear 6 is meshed with the driving spur gear 5 to transmit power to the connecting bracket main shaft 14 so as to drive the connecting bracket assembly 3 to rotate; the three horizontal shafts 12 are respectively and correspondingly arranged on three horizontal supports of the connecting support assembly 3, two ends of each horizontal shaft 12 are arranged in supporting seats on the horizontal supports, horizontal transmission conical gears 9 are coaxially arranged at the head end and the tail end of the horizontal shafts 12, and the horizontal transmission conical gears 9 at the head ends of the three horizontal shafts 12 are meshed with the large conical gears 8 at the center of the connecting supports and transmit power; the disc brush driving conical gears 11 are coaxially connected right above the corresponding disc brushes 1 through the disc brush connecting shafts 13, and the three groups of disc brush driving conical gears 11 are respectively meshed with the horizontal transmission conical gears 9 positioned at the tail ends of the three horizontal shafts 12 and transmit power.
Further, a horizontal sleeve 10 is mounted on the outer side of the horizontal shaft 12, and a shield 2 is mounted at a position where the disk brush driving bevel gear 11 is engaged with the horizontal transmission bevel gear 9 at the end of the horizontal shaft 12.
As shown in fig. 4, under the driving of the motor 4, the transmission paths of the gear transmission mechanism are two, and one of the transmission paths is in turn: the motor 4, the driving spur gear 5, the connecting bracket center large spur gear 6, the connecting bracket center large conical gear 8, the horizontal transmission conical gear 9 positioned at the head end of the horizontal shaft 12, the horizontal transmission conical gear 9 positioned at the tail end of the horizontal shaft 12, the disk brush driving conical gear 11 and the disk brush 1; the other is as follows: the motor 4, the driving spur gear 5, the connecting bracket center large spur gear 6, the connecting bracket center large conical gear 8, the connecting bracket main shaft 14, the connecting bracket assembly 3 and the disc brush 1. Under the drive of the motor 4, each group of disc brushes 1 can realize the rotation in the same direction, meanwhile, the three groups of disc brushes 1 can also realize the linkage rotation under the drive of the connecting bracket assembly 3, and the linkage rotation direction of the three groups of disc brushes 1 is opposite to the rotation direction of each group of disc brushes 1.
The road isolation fence ground cleaning device provided with the transmission connecting frame comprises the following specific working processes:
as shown in fig. 4 and 5, three groups of disc brushes 1 are uniformly distributed on three horizontal brackets of the connecting bracket assembly 3 along the circumference in a radial manner, and do not interfere with each other, when the road isolation fence ground cleaning device starts to work, the road isolation fence ground cleaning device is adjusted to a proper working position, namely, the bristles of the disc brushes extend through the road isolation fence to cover the road surface right below the road isolation fence, normal operation of the disc brushes and the connecting bracket assembly is not affected, after the motor 4 is started, the motor 4 drives the driving spur gear 5 to rotate clockwise, the connecting bracket central large spur gear 6 rotates anticlockwise, the connecting bracket central large conical gear 8 also rotates anticlockwise, and at the moment, the connecting bracket assembly 3 rotates anticlockwise under the drive of the connecting bracket central large conical gear 8, and then drives the three groups of disc brushes 1 to rotate anticlockwise in a linkage manner; the large conical gear 8 at the center of the connecting bracket further drives the horizontal transmission conical gear 9 at the head end of the horizontal shaft 12 to rotate, and the horizontal transmission conical gear 9 at the tail end of the horizontal shaft 12 is driven to rotate through the transmission of the horizontal shaft 12, so that the disk brush driving conical gear 11 is driven to rotate clockwise, and at the moment, each group of disk brushes 1 are driven by the disk brush driving conical gear 11 to rotate clockwise. In the direction shown in fig. 4, the sweeper forwards advances, each group of disc brushes 1 rotates clockwise, the connecting bracket assembly 3 rotates anticlockwise, and the two groups of disc brushes are reversely rotated, so that the smooth obstacle surmounting of the connecting bracket assembly 3 and the disc brushes 1 in the sweeping advancing operation process of the sweeper is ensured, and when the connecting bracket assembly is in instant contact with the bottom end of the upright post of the road isolation fence, the sweeping operation is ensured to be smoothly carried out through the forward advancing of the sweeper and the rotating direction of the connecting bracket assembly.
Claims (1)
1. A transmission link for road isolation fence ground cleaning device, its characterized in that:
the transmission connecting frame consists of a connecting bent plate (7), a connecting bracket assembly (3) and a gear transmission mechanism;
the gear transmission mechanism consists of a driving straight gear (5), a connecting bracket central large straight gear (6), a connecting bracket central large conical gear (8), a horizontal transmission conical gear (9), a disk brush driving conical gear (11), a horizontal shaft (12), a disk brush connecting shaft (13) and a connecting bracket main shaft (14);
the driving straight gear (5) is positioned below the connecting bent plate (7), is coaxially connected with an output shaft of a motor (4) of the road isolation fence ground cleaning device, and is coaxially fixed with a connecting bracket center large straight gear (6) and a connecting bracket center large conical gear (8) and is coaxially connected with the top end of a connecting bracket main shaft (14), and the connecting bracket center large straight gear (6) positioned above the connecting bracket center large conical gear (8) is meshed with the driving straight gear (5);
the disc brush driving conical gear (11) is coaxially connected with a disc brush (1) of the road isolation fence ground cleaning device through a disc brush connecting shaft (13);
the connecting support assembly (3) is provided with horizontal supports in a radial mode in the circumferential direction, the horizontal shaft (12) is arranged on the horizontal support of the connecting support assembly (3), the horizontal transmission conical gears (9) are coaxially arranged at two ends of the horizontal shaft (12), the horizontal transmission conical gear (9) at one end is meshed with the large conical gear (8) at the center of the connecting support, and the horizontal transmission conical gear (9) at the other end is meshed with the disk brush driving conical gear (11);
three horizontal brackets are uniformly distributed in the radial direction of the connecting bracket assembly (3), and corresponding to the three horizontal brackets, three groups of disc brushes (1) of the road isolation fence ground cleaning device are respectively assembled and connected at the tail ends of the three horizontal brackets of the connecting bracket assembly (3);
the connecting bracket main shaft (14) is positioned at the center of the connecting bracket assembly (3) and is fixedly connected with the connecting bracket assembly (3);
a horizontal shaft sleeve (10) is arranged on the outer side of the horizontal shaft (12), and a shield (2) is also arranged at the meshing position of the disk brush driving conical gear (11) and the horizontal transmission conical gear (9);
under the drive of motor (4), every group dish brush (1) can realize the rotation of same direction, simultaneously, three groups dish brush (1) can also realize the linkage rotation under the drive of linking bridge assembly (3), and three groups the linkage rotation direction of dish brush (1) is opposite with the rotation direction of every group dish brush (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710286825.8A CN107044509B (en) | 2017-04-27 | 2017-04-27 | Transmission connecting frame for road isolation fence ground cleaning device |
| PCT/CN2018/080615 WO2018196533A1 (en) | 2017-04-27 | 2018-03-27 | Drive connection frame for use in device for sweeping ground under road fence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710286825.8A CN107044509B (en) | 2017-04-27 | 2017-04-27 | Transmission connecting frame for road isolation fence ground cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107044509A CN107044509A (en) | 2017-08-15 |
| CN107044509B true CN107044509B (en) | 2023-10-10 |
Family
ID=59546528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710286825.8A Active CN107044509B (en) | 2017-04-27 | 2017-04-27 | Transmission connecting frame for road isolation fence ground cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107044509B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018196532A1 (en) * | 2017-04-27 | 2018-11-01 | 王海维 | Device for sweeping ground under road fence |
| WO2018196533A1 (en) * | 2017-04-27 | 2018-11-01 | 王海维 | Drive connection frame for use in device for sweeping ground under road fence |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002011417A (en) * | 2000-06-28 | 2002-01-15 | Nobuhiko Sugita | Device for cleaning court surface and the like |
| DE102007055458A1 (en) * | 2007-11-09 | 2009-05-14 | Ing. Haaga Werkzeugbau Gmbh & Co. Kg | Hand-operated road sweeper, has circular brooms connected with sweeping roller for movement transmission over angle drive, and drive units provided for transferring driving powers to circular brooms and sweeping roller |
| CN201704660U (en) * | 2010-07-09 | 2011-01-12 | 北京事必达汽车有限责任公司 | Dish broom-type traffic guardrail cleaning vehicle |
| CN201843112U (en) * | 2010-11-03 | 2011-05-25 | 河南远东大方道路养护设备有限公司 | Guardrail cleaning machine on urban road |
| CN102619180A (en) * | 2012-04-17 | 2012-08-01 | 长沙中联重科环卫机械有限公司 | Guardrail cleaning device and guardrail cleaning vehicle |
| CN203684149U (en) * | 2013-12-02 | 2014-07-02 | 昆明理工大学 | Small-sized sweeping cleaner gear driving mechanism |
| CN206785936U (en) * | 2017-04-27 | 2017-12-22 | 王海维 | Drive connection frame for road isolated column ground swe eper |
-
2017
- 2017-04-27 CN CN201710286825.8A patent/CN107044509B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002011417A (en) * | 2000-06-28 | 2002-01-15 | Nobuhiko Sugita | Device for cleaning court surface and the like |
| DE102007055458A1 (en) * | 2007-11-09 | 2009-05-14 | Ing. Haaga Werkzeugbau Gmbh & Co. Kg | Hand-operated road sweeper, has circular brooms connected with sweeping roller for movement transmission over angle drive, and drive units provided for transferring driving powers to circular brooms and sweeping roller |
| CN201704660U (en) * | 2010-07-09 | 2011-01-12 | 北京事必达汽车有限责任公司 | Dish broom-type traffic guardrail cleaning vehicle |
| CN201843112U (en) * | 2010-11-03 | 2011-05-25 | 河南远东大方道路养护设备有限公司 | Guardrail cleaning machine on urban road |
| CN102619180A (en) * | 2012-04-17 | 2012-08-01 | 长沙中联重科环卫机械有限公司 | Guardrail cleaning device and guardrail cleaning vehicle |
| CN203684149U (en) * | 2013-12-02 | 2014-07-02 | 昆明理工大学 | Small-sized sweeping cleaner gear driving mechanism |
| CN206785936U (en) * | 2017-04-27 | 2017-12-22 | 王海维 | Drive connection frame for road isolated column ground swe eper |
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| Publication number | Publication date |
|---|---|
| CN107044509A (en) | 2017-08-15 |
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