CN219887765U - Construction structure for pavement reconstruction - Google Patents

Construction structure for pavement reconstruction Download PDF

Info

Publication number
CN219887765U
CN219887765U CN202320966000.1U CN202320966000U CN219887765U CN 219887765 U CN219887765 U CN 219887765U CN 202320966000 U CN202320966000 U CN 202320966000U CN 219887765 U CN219887765 U CN 219887765U
Authority
CN
China
Prior art keywords
bottom plate
rod
plate
screw
pavement
Prior art date
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.)
Active
Application number
CN202320966000.1U
Other languages
Chinese (zh)
Inventor
王海峰
周诗扬
崔妙雅
鲍勇强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Solid Waste Management Service Center Co ltd
Original Assignee
Chongqing Solid Waste Management Service Center Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Solid Waste Management Service Center Co ltd filed Critical Chongqing Solid Waste Management Service Center Co ltd
Priority to CN202320966000.1U priority Critical patent/CN219887765U/en
Application granted granted Critical
Publication of CN219887765U publication Critical patent/CN219887765U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Road Paving Structures (AREA)

Abstract

The utility model relates to a construction structure for pavement reconstruction, which belongs to the field of pavement construction technology and comprises a bottom plate, a protection plate and an adjusting mechanism, wherein the bottom plate is hollow and is provided with an opening at the upper end, and the protection plate is arranged in the bottom plate in a sliding way; the adjusting mechanism is arranged on the bottom plate and used for driving the protection plate to slide in the bottom plate, the adjusting mechanism comprises a screw rod, a support rod and a connecting rod, the screw rod is rotationally arranged on the bottom plate, the threads of the support rod are arranged on the screw rod, one end of the connecting rod is arranged on the support rod, and the other end of the connecting rod is arranged on the protection plate. The staff drives the lead screw to rotate for the bracing piece is to being close to the lead screw or keeping away from the direction of lead screw and removes, and the bracing piece drives the guard plate through the connecting plate to be close to the direction of bottom plate or keep away from the direction of bottom plate and slide in the bottom plate, realizes the high adjustment of guard plate in vertical direction, and the protection demand of adaptation different heights effectively improves the problem that current pavement enclosure is difficult to match the protection requirement of different heights.

Description

Construction structure for pavement reconstruction
Technical Field
The utility model relates to the field of pavement construction technology, in particular to a pavement reconstruction construction structure.
Background
The pavement refers to a part of the road separated by kerbs or guardrails and other similar facilities and specially used for pedestrians to pass through, and the old pavement is required to be modified due to the fact that the roadbeds of the pavement are prone to sedimentation, breakage and the like under the influence of factors such as long-time use, rainwater erosion, geological sedimentation and the like. In the reconstruction construction process of the sidewalk, a surrounding is usually required to be installed on the side edge of the sidewalk, so that fragments, dust and the like generated in the construction process of the sidewalk are prevented from being diffused to the outside, the travel of the pedestrians is influenced, and meanwhile, the problem that potential safety hazards exist due to the fact that the pedestrians enter a construction site can be prevented.
At present, a pavement is usually enclosed in a construction section of the pavement by using a steel plate, but the construction sections of the pavement are usually protected at different heights for different sections and different reconstruction types of pavement, and the existing enclosing height is usually fixed, so that the protection requirements at different heights are difficult to match.
Disclosure of Invention
In order to solve the problem that the existing pavement enclosure is difficult to match with protection requirements of different heights, the utility model provides a pavement reconstruction construction structure.
The utility model provides a pavement reconstruction construction structure which adopts the following technical scheme:
the construction structure for the pavement transformation comprises a bottom plate, a protection plate and an adjusting mechanism, wherein the bottom plate is hollow and is provided with an opening at the upper end, and the protection plate is arranged in the bottom plate in a sliding manner; the adjusting mechanism is arranged on the bottom plate and used for driving the protection plate to slide in the bottom plate, the adjusting mechanism comprises a screw rod, a support rod and a connecting rod, the screw rod is rotationally arranged on the bottom plate, the threads of the support rod are arranged on the screw rod, one end of the connecting rod is arranged on the support rod, and the other end of the connecting rod is arranged on the protection plate.
Through adopting above-mentioned technical scheme, the staff removes the construction site that the pavement reformed transform with the bottom plate, then drives the lead screw and rotates for the bracing piece is to being close to the lead screw or keeping away from the direction removal of lead screw, and the bracing piece drives the guard plate through the connecting plate to be close to the direction of bottom plate or keep away from the direction of bottom plate and slide in the bottom plate, realizes the high adjustment of guard plate at vertical direction, the protection demand of adaptation different height, effectively improves the problem that current pavement enclosure is difficult to match the protection demand of different height.
Optionally, be provided with the ripple cover on the bottom plate, the ripple cover is established the lead screw cover in, the ripple cover is connected with the bracing piece, just reserve the operation mouth on the ripple cover.
Through adopting above-mentioned technical scheme, the ripple cover is along with the removal of bracing piece and is lengthened or shorten, including the lead screw protection all the time, prevents that the lead screw from being erodeed by rainwater, dust etc. promotes the life of lead screw, and through the operation mouth of reserving, the staff of being convenient for orders about the lead screw and rotates.
Optionally, be provided with a plurality of supporting mechanism that is used for providing the support to the bottom plate on the bottom plate, supporting mechanism includes telescopic link and butt piece, the telescopic link articulates the setting on the bottom plate, the butt piece articulates the setting and keeps away from the one end of bottom plate at the telescopic link.
Through adopting above-mentioned technical scheme, the staff rotates the telescopic link for the butt piece supports tightly with ground, realizes the support to the bottom plate, effectively promotes the stability of bottom plate, and through adjusting the angle between telescopic link and the bottom plate, and adjusts the angle between butt piece and the telescopic link, promotes the adaptability of supporting mechanism to different topography.
Optionally, the telescopic link includes support column, inserted bar, screw rod and driving piece, the support column articulates and sets up on the bottom plate, the inside cavity of support column and the one end opening setting that keeps away from the bottom plate, the inserted bar slides and sets up in the support column; the screw rod is rotatably arranged on the inner bottom wall of the support column, and the screw rod threads are penetrated into the inserted link; the driving piece is arranged on the supporting column and used for driving the screw rod to rotate.
Through adopting above-mentioned technical scheme, the staff drives the screw rod through the driving piece and rotates, can make the inserted bar slide in the support column to the direction of keeping away from or being close to the support column, realizes the length adjustment of telescopic link, further promotes supporting mechanism to the adaptability of different topography.
Optionally, the driving piece comprises a rocking handle and a driving bevel gear, the rocking handle is rotatably arranged on the supporting column, and the driving bevel gear is coaxially arranged on the rocking handle; and a driven bevel gear is coaxially arranged on the screw rod, and the driven bevel gear is meshed with the driving bevel gear.
Through adopting above-mentioned technical scheme, the staff rotates the rocking handle, and the rocking handle drives the drive bevel gear and rotates, and the drive bevel gear drives driven bevel gear and rotates, and driven bevel gear drives the screw rod and rotates, and the staff of being convenient for drives the screw rod and rotate.
Optionally, be provided with the spraying mechanism that is used for spraying water smoke on the guard plate, spraying mechanism includes atomizer and delivery pipe, atomizer is provided with a plurality of at the top of guard plate, a plurality of atomizer all communicates with the delivery pipe, the delivery pipe sets up on the bottom plate.
Through adopting above-mentioned technical scheme, when the raise dust during the construction is great, the staff communicates delivery pipe and outside water pipe, and rivers can be through the delivery pipe water conservancy diversion to atomizer in, are vaporific blowout through atomizer, reduce the diffusion of raise dust.
Optionally, one end of the water supply pipe far away from the atomizing nozzle is provided with a quick connector for communicating with an external water pipe.
Through adopting above-mentioned technical scheme, the staff can communicate delivery pipe and outside water pipe through quick-operation joint, promotes the convenience that the staff communicates delivery pipe and outside water pipe.
Optionally, a plurality of universal wheels are arranged at the bottom of the bottom plate.
Through adopting above-mentioned technical scheme, the universal wheel reduces the frictional force between bottom plate and the ground, and the staff of being convenient for removes the bottom plate.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. the problem that the existing pavement enclosure is difficult to match with the protection requirements of different heights is solved by adjusting the height of the protection plate in the vertical direction;
2. the stability of the bottom plate is improved through the support of the telescopic rod and the abutting block, and the adaptability of the supporting mechanism to different terrains is improved through adjusting the angle between the telescopic rod and the bottom plate and the angle between the abutting block and the telescopic rod;
3. through communicating delivery pipe and outside water pipe, atomizer blowout water smoke reduces the diffusion of raise dust.
Drawings
Fig. 1 is a schematic structural view of a construction structure for pavement reconstruction according to an embodiment of the present utility model.
Figure 2 is a partial structural cross-sectional view of a bellows and support post of an embodiment of the present utility model.
Fig. 3 is an enlarged partial schematic view of the portion a in fig. 2.
Fig. 4 is a partially enlarged schematic view of the portion B in fig. 2.
Reference numerals: 1. a bottom plate; 2. a protection plate; 3. an adjusting mechanism; 31. a screw rod; 32. a support rod; 33. a connecting rod; 4. a corrugated sleeve; 41. an operation port; 5. a support mechanism; 51. a telescopic rod; 511. a support column; 512. a rod; 513. a screw; 514. a driving member; 5141. a rocking handle; 5142. a drive bevel gear; 52. an abutment block; 6. a driven bevel gear; 7. a spraying mechanism; 71. an atomizing nozzle; 72. a water supply pipe; 8. a quick connector; 9. a universal wheel; 10. a hexagonal head; 11. a loop bar; 12. and an elastic clasp.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-4.
The embodiment of the utility model discloses a construction structure for pavement reconstruction.
Referring to fig. 1, the construction structure of the sidewalk reconstruction comprises a bottom plate 1, a protection plate 2 and an adjusting mechanism 3, wherein the bottom plate 1 is internally hollow and provided with an upper opening, the protection plate 2 is slidably installed in the bottom plate 1, the height of the protection plate 2 is larger than that of the bottom plate 1, and the adjusting mechanism 3 is installed at the top of the bottom plate 1 and used for driving the protection plate 2 to slide in the bottom plate 1.
The staff drives the guard plate 2 to move in the direction close to or far away from the bottom plate 1 in the bottom plate 1 through the adjusting mechanism 3, so that the height of the guard plate 2 in the vertical direction is adjusted, the protection requirements of different heights can be adapted, and the problem that the protection requirements of different heights are difficult to match in the existing pavement enclosure is solved.
Referring to fig. 2 and 3, the adjusting structure comprises a screw rod 31, a supporting rod 32 and a connecting rod 33, wherein the screw rod 31 is rotatably installed at the top of the bottom plate 1, and in the embodiment, a hexagonal head 10 is coaxially and fixedly installed on the screw rod 31, so that a worker can conveniently screw the screw rod 31 through a tool such as a wrench; the bottom of the supporting rod 32 is arranged on the screw rod 31 in a threaded manner, one end of the connecting rod 33 is arranged at the top of the supporting rod 32, and the other end of the connecting rod is arranged on the protection plate 2; in the embodiment, two adjusting mechanisms 3 are arranged on the top of the bottom plate 1, and the two adjusting mechanisms 3 are respectively positioned at two ends of the protection plate 2 in the length direction, so that the stability of the protection plate 2 is improved; the staff twists the lead screw 31 through instruments such as spanner for bracing piece 32 removes to the direction that is close to lead screw 31 or keeps away from lead screw 31, and bracing piece 32 drives connecting rod 33 again and removes, and connecting rod 33 can drive guard plate 2 and slide to the direction that is close to bottom plate 1 or keeps away from bottom plate 1 in bottom plate 1, and the staff of being convenient for orders about guard plate 2 and slides in bottom plate 1.
The top of the bottom plate 1 is provided with the corrugated sleeve 4, the corrugated sleeve 4 can be made of rubber, stainless steel and the like, in the embodiment, the corrugated sleeve 4 is made of rubber, has the characteristics of low cost, corrosion resistance and the like, the screw rod 31 is positioned in the corrugated sleeve 4, one end of the corrugated sleeve 4 far away from the bottom plate 1 is fixedly connected with the supporting rod 32, and an operation port 41 is reserved on the side wall of the corrugated sleeve 4 positioned at the hexagon head 10; the corrugated sleeve 4 stretches or shortens along with the movement of the support rod 32, so that the screw rod 31 is always protected inside, the screw rod 31 is prevented from being corroded by rainwater, dust and the like, and the service life of the screw rod 31 is effectively prolonged; and through the reserved operation port 41, a worker can conveniently extend tools such as a wrench into the corrugated sleeve 4 to screw the screw rod 31.
Referring to fig. 1 and 2, a spraying mechanism 7 for spraying water mist to the top of a protection plate 2 is installed on the protection plate 2, the spraying mechanism 7 comprises a plurality of atomizing nozzles 71 and a water pipe, the atomizing nozzles 71 are installed on the top of the protection plate 2, in the embodiment, three atomizing nozzles 71 are installed on the top of the protection plate 2 at intervals along the length direction of the protection plate 2, the three atomizing nozzles 71 are communicated with a water supply pipe 72, and in the embodiment, the water supply pipe 72 is a hose, so that a worker can conveniently move the water supply pipe 72, and an L-shaped rod is installed on the side wall of the bottom plate 1, so that the worker can conveniently wind the water supply pipe 72 and place the water supply pipe 72 on the L-shaped rod for storage; and a quick connector 8 for communicating the water supply pipe 72 with an external water pipe is installed at an end of the water supply pipe 72 remote from the atomizing head 71.
When the pavement is transformed and constructed to cause dust, a worker communicates an external water pipe to the quick connector 8, then water flow is led into the water supply pipe 72 through the external water pipe, and flows into the atomizing nozzle 71 through the water supply pipe 72, and the water is sprayed out in a mist form through the atomizing nozzle 71, so that the diffusion of the dust is reduced.
Referring to fig. 2 and 4, a plurality of supporting mechanisms 5 for supporting the bottom plate 1 are installed on the bottom plate 1, in this embodiment, two supporting mechanisms 5 are installed on the bottom plate 1, and the two supporting mechanisms 5 are respectively located at two sides of the bottom plate 1 in the length direction, so that the supporting of the bottom plate 1 by the supporting mechanisms 5 is more balanced;
the supporting mechanism 5 comprises a telescopic rod 51 and an abutting block 52, the telescopic rod 51 is hinged on the bottom plate 1, the length of the telescopic rod 51 is telescopic, the telescopic rod 51 comprises a supporting column 511, an inserting rod 512, a screw 513 and a driving piece 514, the supporting column 511 is hinged on the side wall of the bottom plate 1, in the embodiment, an elastic clamping ring 12 made of elastic materials is arranged on the side wall of the bottom plate 1, the opening of the elastic clamping ring 12 is smaller than the diameter of the supporting column 511, but the opening of the elastic clamping ring 12 can be expanded and then restored to the original state, so that a worker can conveniently rotate the supporting column 511 to the direction close to the bottom plate 1 to be temporarily fixed in the elastic clamping ring 12, and convenience of the worker in moving the bottom plate 1 is improved;
the support column 511 is hollow and is open at one end far away from the bottom plate 1, the inserted link 512 is slidably mounted in the support column 511, the abutting block 52 is hinged at one end of the inserted link 512 far away from the support column 511, in this embodiment, a plurality of anti-skid nails made of rubber are mounted at one end of the abutting block 52 far away from the inserted link 512, so that the friction force between the abutting block 52 and the ground is increased; in this embodiment, the inner opening of the support column 511 is rectangular, and is inserted into a rectangular rod adapted to the inner opening of the support column 511, and in other embodiments, the inner opening of the support column 511 may be triangular, pentagonal, etc., so long as the insertion rod 512 can be prevented from rotating inside the support column 511; screw 513 is rotatably mounted on the inner bottom wall of support column 511, and one end of screw 513 remote from the inner bottom wall of support column 511 is in threaded connection with rod 512;
the driving member 514 is mounted on the support column 511 and is used for driving the screw 513 to rotate, the driving member 514 comprises a rocking handle 5141 and a drive bevel gear 5142, the rocking handle 5141 is rotatably mounted on the support column 511, the rocking handle 5141 extends into the support column 511, the drive bevel gear 5142 is coaxially mounted at one end of the rocking handle 5141 located in the support column 511, in the embodiment, the rocking handle 5141 is a Z-shaped rod, and the worker can drive the drive bevel gear 5142 to rotate more labor-saving through the lever principle; a driven bevel gear 6 is coaxially installed on the screw 513, and the driven bevel gear 6 is engaged with the drive bevel gear 5142.
The staff rotates support column 511 out from snap ring 12, rotates rocking handle 5141, and rocking handle 5141 drives initiative bevel gear 5142 and rotates, and initiative bevel gear 5142 drives driven bevel gear 6 and rotates, and driven bevel gear 6 drives screw rod 513 and rotates for insert rod 512 slides in support column 511 to the direction that is close to support column 511 or keep away from support column 511, makes butt piece 52 fully contact and support with the ground, provides support to bottom plate 1, promotes the steadiness of bottom plate 1, simultaneously through the length adjustment of telescopic link 51, the angular adjustment of support column 511 and bottom plate 1 and the angular adjustment of butt piece 52 and insert rod 512, effectively promotes the suitability to different topography.
Referring to fig. 1 and 2, a plurality of universal wheels 9 are installed at the bottom of the base plate 1, in this embodiment, a base with a size larger than the cross-sectional size of the base plate 1 is installed at the bottom of the base plate 1, and one universal wheel 9 is installed at each position of the base near four corners of the base, so that the universal wheels 9 support the base plate 1 more stably, and the universal wheels 9 are brake universal wheels, namely, the universal wheels 9 are provided with brake pads, so that the movement of the base plate 1 is conveniently limited by staff; friction between the bottom plate 1 and the ground is reduced through the universal wheel 9, and the bottom plate 1 is convenient for the staff to transport to other positions.
The implementation principle of the construction structure for pavement reconstruction in the embodiment of the utility model is as follows: the staff drives the screw rod 31 to rotate, so that the supporting rod 32 moves in the vertical direction, and the supporting rod 32 drives the protection plate 2 to move in the vertical direction through the connecting rod 33, so that the height of the protection plate 2 is suitable for the protection requirements of different heights, and the problem that the existing pavement enclosure is difficult to match with the protection requirements of different heights is solved; and can also restrain the raise dust diffusion through spraying mechanism 7, simultaneously through adjusting the angle between telescopic link 51 and the bottom plate 1, the length of adjustment telescopic link 51 and the angle between adjusting butt piece 52 and the telescopic link 51, realize the purpose that can both provide effective support to bottom plate 1 in different topography.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. The utility model provides a construction structure that pavement reformed transform which characterized in that: the novel anti-theft device comprises a bottom plate (1), a protection plate (2) and an adjusting mechanism (3), wherein the bottom plate (1) is hollow and is provided with an opening at the upper end, and the protection plate (2) is arranged in the bottom plate (1) in a sliding manner; the adjusting mechanism (3) is arranged on the bottom plate (1) and used for driving the protection plate (2) to slide in the bottom plate (1), the adjusting mechanism (3) comprises a screw rod (31), a support rod (32) and a connecting rod (33), the screw rod (31) is rotationally arranged on the bottom plate (1), the support rod (32) is arranged on the screw rod (31) in a threaded mode, and one end of the connecting rod (33) is arranged on the support rod (32) while the other end of the connecting rod is arranged on the protection plate (2).
2. The pavement reconstruction structure according to claim 1, wherein: the novel screw rod is characterized in that a corrugated sleeve (4) is arranged on the bottom plate (1), the screw rod (31) is sleeved in the corrugated sleeve (4), the corrugated sleeve (4) is connected with the supporting rod (32), and an operation opening (41) is reserved in the corrugated sleeve (4).
3. The pavement reconstruction structure according to claim 1, wherein: be provided with a plurality of supporting mechanism (5) that are used for providing support to bottom plate (1) on bottom plate (1), supporting mechanism (5) are including telescopic link (51) and butt piece (52), telescopic link (51) hinge set up on bottom plate (1), butt piece (52) hinge set up in telescopic link (51) keep away from the one end of bottom plate (1).
4. A pavement reconstruction structure according to claim 3, wherein: the telescopic rod (51) comprises a support column (511), an inserting rod (512), a screw rod (513) and a driving piece (514), wherein the support column (511) is hinged to the bottom plate (1), the support column (511) is hollow and is arranged far away from an opening at one end of the bottom plate (1), and the inserting rod (512) is arranged in the support column (511) in a sliding mode; the screw (513) is rotatably arranged on the inner bottom wall of the supporting column (511), and the screw (513) is threaded into the inserting rod (512); the driving piece (514) is arranged on the supporting column (511) and is used for driving the screw (513) to rotate.
5. The pavement reconstruction structure according to claim 4, wherein: the driving piece (514) comprises a rocking handle (5141) and a driving bevel gear (5142), the rocking handle (5141) is rotatably arranged on the supporting column (511), and the driving bevel gear (5142) is coaxially arranged on the rocking handle (5141); a driven bevel gear (6) is coaxially arranged on the screw (513), and the driven bevel gear (6) is meshed with the driving bevel gear (5142).
6. The pavement reconstruction structure according to claim 1, wherein: be provided with on guard plate (2) and be used for spraying spray mechanism (7) of water smoke, spray mechanism (7) are including atomizer (71) and delivery pipe (72), atomizer (71) are provided with a plurality of at the top of guard plate (2), a plurality of atomizer (71) all communicate with delivery pipe (72), delivery pipe (72) set up on bottom plate (1).
7. The pavement reconstruction structure according to claim 6, wherein: one end of the water supply pipe (72) far away from the atomizing nozzle (71) is provided with a quick connector (8) which is communicated with an external water pipe.
8. The pavement reconstruction structure according to claim 1, wherein: the bottom of the bottom plate (1) is provided with a plurality of universal wheels (9).
CN202320966000.1U 2023-04-25 2023-04-25 Construction structure for pavement reconstruction Active CN219887765U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320966000.1U CN219887765U (en) 2023-04-25 2023-04-25 Construction structure for pavement reconstruction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320966000.1U CN219887765U (en) 2023-04-25 2023-04-25 Construction structure for pavement reconstruction

Publications (1)

Publication Number Publication Date
CN219887765U true CN219887765U (en) 2023-10-24

Family

ID=88402947

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320966000.1U Active CN219887765U (en) 2023-04-25 2023-04-25 Construction structure for pavement reconstruction

Country Status (1)

Country Link
CN (1) CN219887765U (en)

Similar Documents

Publication Publication Date Title
CN107036017A (en) A kind of convenient maintenance street lamp with Height Adjustable function
CN113289435B (en) Building construction working face sprays dust fall heat sink
CN210420926U (en) Safety warning device is used in municipal administration
CN111587767A (en) Stepless regulation's municipal greenbelt and road integration pipeline watering device
CN219887765U (en) Construction structure for pavement reconstruction
CN211515339U (en) Intelligent dry ice cleaning robot for electric insulator
CN109479679A (en) It is a kind of buried from lifting rainer based on track
CN211025594U (en) Dust device for mine construction
CN111280031A (en) A translation formula sprinkling irrigation machine for agricultural production convenient to adjust
CN215562277U (en) Sanitation car sprinkler
CN215668915U (en) High-pressure water seam cleaning machine capable of moving in multiple directions
CN108457202A (en) A kind of overpass outer wall facility repair method
CN209539366U (en) A kind of traffic vcehicular tunnel maintenance and reinforcement platform
CN219080185U (en) Highway engineering construction maintenance equipment
CN220159568U (en) Dust fall device
CN221667319U (en) Highway basic unit compactness detects sampling device
CN218392930U (en) Construction-based construction point rapid dust falling device for construction engineering
CN201253597Y (en) Road-marking device micro-bead spraying gun
CN211523060U (en) Energy-efficient building construction dust device
CN220336611U (en) Municipal works foundation ditch rail guard
CN217811204U (en) Municipal works road surface inspection shaft well head
CN215210449U (en) Effectual highway line printer of drawing a line
CN215668943U (en) City planning road sign spraying device
CN220397432U (en) Temporary lighting device for indoor construction
CN221255149U (en) Municipal road maintenance device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant