CN208378053U - Practical scene pay off rack is built in a kind of room - Google Patents
Practical scene pay off rack is built in a kind of room Download PDFInfo
- Publication number
- CN208378053U CN208378053U CN201820663450.2U CN201820663450U CN208378053U CN 208378053 U CN208378053 U CN 208378053U CN 201820663450 U CN201820663450 U CN 201820663450U CN 208378053 U CN208378053 U CN 208378053U
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- fixedly connected
- wire box
- rack
- line
- support base
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Abstract
The utility model relates to rooms to build ancillary equipment field, it discloses a kind of room and builds practical live pay off rack, including support base, it is fixedly connected on the support base and deposits wire box, described deposit is provided with bobbin winder bracket in wire box, driving motor is fixedly connected on the support base, the output shaft of the driving motor is fixedly connected with the bobbin winder bracket, described deposit is provided with guide device in wire box, the guide device includes being slidably connected at the guide bracket deposited in wire box, the driving assembly for driving the guide bracket to move back and forth, the utility model has the following advantages that and effect: this programme utilizes new mechanical structure, pass through setting driving assembly and guide bracket, guide bracket is reciprocally moveable line under the drive of driving assembly, line is uniformly wrapped on bobbin winder bracket after reciprocating movement, make to be not susceptible to wind between line and line, when worker carries out outlet operation , worker can faster take out line from depositing in wire box, improve out linear velocity.
Description
Technical field
The utility model relates to rooms to build ancillary equipment, more specifically, it relates to which practical scene pay off rack is built in a kind of room.
Background technique
The construction line-putting is by the precheck to construction project construction layout, it is ensured that construction project is according to program examination and approval
It is required that safely and conveniently carrying out, combines and improve urban operating mechanism, improve environmental quality, avoid the interests to adjacent main part of property right
It causes to encroach on.
Currently, the Chinese patent that notification number is CN206827786U discloses a kind of building construction scene pay off rack, it
Including pedestal, wire terminal box and line outlet, the base bottom is equipped with universal wheel, and chassis interior is equipped with battery；The bottom
Seating face is equipped with solar panel, and solar panel side is equipped with first support bar；The first support bar outer wall is set
There is limit knob, and limits knob and connect limit hole；Second support bar, and second support bar are equipped with inside the first support bar
Outer wall is equipped with unwrapping wire button；Unwrapping wire button side is equipped with take-up button；Motor is equipped at the top of the second support bar；It is described
Motor connects shaft, and shaft connects wire terminal box；Bobbin winder bracket is equipped with inside the wire terminal box, and wiring outer box wall is equipped with outlet
Mouthful；The line outlet inner wall is equipped with fixed plate, and fixed plate surface is equipped with and inhales gray cotton；The shaft is connected and fixed knob；It is described
Battery connects charging-discharging controller.
This building construction scene carries out take-up by motor and bobbin winder bracket with pay off rack, and motor drives bobbin winder bracket rotation,
The coil of wire is wound on bobbin winder bracket, but since line is when being wound on bobbin winder bracket, line itself is not tensioned, line can be with more free
State is wrapped on bobbin winder bracket, is caused the line on bobbin winder bracket to arrange chaotic and is unevenly distributed, when carrying out outlet, uses linear velocity
It reduces.
Utility model content
In view of the deficienciess of the prior art, having the utility model lies in that providing a kind of room builds practical live pay off rack
It is improved out the effect of linear velocity.
To achieve the above object, the utility model provides following technical solution: practical live pay off rack is built in a kind of room,
It including support base, is fixedly connected on the support base and deposits wire box, described deposit is provided with bobbin winder bracket in wire box, on the support base
It is fixedly connected with driving motor, the output shaft of the driving motor is fixedly connected with the bobbin winder bracket, and described deposit is arranged in wire box
There is guide device, the guide device includes being slidably connected at the guide bracket deposited in wire box, the driving guide bracket reciprocating movement
Driving assembly.
By using above-mentioned technical proposal, line is stored on bobbin winder bracket by worker, and when it is desired to be used, worker is by line from depositing
It is taken out in wire box, pulls wire carries out outlet operation, to carry out live unwrapping wire；It needs to carry out take-up operation when worker's unwrapping wire finishes
When, worker starts driving motor, and driving motor drives bobbin winder bracket rotation, and bobbin winder bracket rotation band moving-wire is wrapped on bobbin winder bracket, together
When worker by driving assembly drive guide bracket move back and forth, be wrapped in line uniformly on bobbin winder bracket, be not easy between line and line
It winds；When next worker carries out outlet operation, line more can quickly leave and deposit wire box, improve the speed of outlet
Degree.
The utility model is further arranged to: the driving component includes being fixedly connected on the electronic horse deposited in wire box
The driving screw rod that reach, is fixedly connected on the output shaft of the electric motor, be threaded in it is reciprocal on the driving screw rod
Block, the control piece for controlling the electric motor positive and negative rotation, the guide bracket are fixedly connected with the reciprocating block.
By using above-mentioned technical proposal, electric motor rotation, which drives, to be driven screw turns, and it is past to drive screw turns drive
Multiblock is mobile, and reciprocating block is mobile to drive guide bracket mobile, and control piece controls the positive and negative rotation of electric motor, keeps reciprocating block real
Existing positive and negative rotation is wrapped in line uniformly on bobbin winder bracket, between line and line not so that guide bracket band moving-wire be allowed to move back and forth
Easily wind；When next worker carries out outlet operation, line more can quickly leave and deposit wire box, improve the speed of outlet
Degree.
The utility model is further arranged to: the control piece includes being fixedly connected on the fine motion for depositing wire box both ends to open
It closes, be fixedly connected on the controller deposited in wire box and connect with the microswitch signal, the controller and the electricity
Dynamic motor control connection, the microswitch are located in the movement routine of the reciprocating block.
By using above-mentioned technical proposal, when reciprocating block is when touching microswitch, microswitch sends a signal to control
At device processed, controller changes the rotation direction of electric motor upon receipt of the signals, to make reciprocating block at the both ends for depositing wire box
The change for carrying out moving direction, is wrapped in line uniformly on bobbin winder bracket, is not susceptible to wind between line and line；As next worker
When carrying out outlet operation, line more can quickly leave and deposit wire box, improve the speed of outlet.
The utility model is further arranged to: the electric motor by fixing piece be fixedly connected on it is described deposit in wire box,
The fixing piece includes the fixed link being slidably connected on the electric motor, is provided with the adjustment hole deposited in wire box, opens
The fixing groove being located on the adjustment hole, the fixed link, which is located at, to be threaded through in the adjustment hole.
By using above-mentioned technical proposal, when worker needs to carry out take-up operation, worker is driven electronic by fixed link
Motor is moved along the track of adjustment hole, and when fixed link reaches at fixing groove, fixed link is pushed into fixing groove by worker, thus
Realize the fixation of electric motor position, worker can guide line by guide bracket at this time；When worker needs to carry out outlet behaviour
When making, worker takes out fixed link out of fixing groove, is adjusted by position of the fixed link to electric motor, makes guide bracket not
It is in contact with line, line can leave winding box faster at this time, improve the speed of outlet.
The utility model is further arranged to: the fixed link is slidably connected on the electric motor by sliding part,
The sliding part includes the basic blocks being fixedly connected on the electric motor, the sliding groove being provided in the basic blocks, opens
The limiting slot being located on the sliding groove inner wall, the retention bead being fixedly connected in the fixed link, the retention bead are sliding
It is dynamic to be connected in limiting slot.
By using above-mentioned technical proposal, retention bead and limiting slot are worked in coordination, and enable fixed link more smoothly
It is slided in sliding groove, facilitates promotion of the worker to gag lever post, accelerate worker to the adjusting speed of electric motor position
Degree.
The utility model is further arranged to: described deposit is provided with cleaning device in wire box, and the cleaning device includes solid
Surely it is connected to the water storage case deposited in wire box, the soakaway trench being fixedly connected on the water storage case, is provided with the soakaway trench
On water seepage hole, the cleaning sponge that is fixedly connected on the soakaway trench, the cleaning sponge and the guide bracket be far from reciprocal
One end of block is bonded, and the soakaway trench, which is fixedly connected on, to be deposited in wire box.
By using above-mentioned technical proposal, the water in water storage case is reached at cleaning sponge by soakaway trench, and water is from water seepage hole
Place slowly infiltrates into water on cleaning sponge, and cleaning sponge is made to become more wet, when line passes through cleaning sponge, cleaning sea
Silk floss clears up line surface, keeps line surface more clean, makes to be not susceptible to wind between line and line；When next worker goes out
When line operates, line more can quickly leave and deposit wire box, improve the speed of outlet.
The utility model is further arranged to: the guide bracket include the support portion being fixedly connected in the reciprocating block,
The limiting section that is fixedly connected on the support portion is provided on the limiting section for accommodating the placing groove of line, the limit
Portion offers conflict cambered surface far from one end of support portion.
By using above-mentioned technical proposal, the setting for contradicting cambered surface subtracts the contact area between guide bracket and cleaning sponge
It is small, so that the frictional force between guide bracket and cleaning sponge reduces, reduce the resistance being subject to when guide bracket movement.
The utility model is further arranged to: being equipped with universal wheel on the support base, is arranged on the support base useful
In limiting the mobile countercheck rod of support base, sharp block is fixedly connected on the countercheck rod.
By using above-mentioned technical proposal, the setting of universal wheel facilitates promotion of the worker to support base, and worker can be light
Pay off rack is moved；When worker needs to be defined the position of support base, worker moves countercheck rod for sharp block
It is inserted into ground, to realize the fixation of support base, keeps support base relatively stable in unwrapping wire.
In conclusion the utility model has the following beneficial effects:
1, it is reciprocally moveable line under the drive of driving assembly by setting driving assembly and guide bracket, guide bracket, line
It is uniformly wrapped on bobbin winder bracket after reciprocating movement, makes to be not susceptible to wind between line and line, when worker carries out outlet operation
When, worker can faster take out line from depositing in wire box, improve out linear velocity；
2, by setting fixing piece so that the position of guide bracket can be changed with work human needs, both can to line into
Row guidance, can not also hinder the normal outlet of line, to improve the speed of outlet.
Detailed description of the invention
Fig. 1 is the external structure schematic diagram of the utility model；
Fig. 2 is to embody the attachment structure schematic diagram for depositing wire box and bobbin winder bracket；
Fig. 3 is the attachment structure schematic diagram for embodying electric motor and driving screw rod；
Fig. 4 is the attachment structure schematic diagram for embodying holding tank and reciprocating block；
Fig. 5 is the attachment structure schematic diagram for embodying support portion and limiting section；
Fig. 6 is enlarged drawing at the A of Fig. 4, embodies the connection structure of adjustment hole and fixing groove；
Fig. 7 is the attachment structure schematic diagram for embodying basic blocks and sliding groove；
Fig. 8 is the attachment structure schematic diagram for embodying soakaway trench and water seepage hole；
Fig. 9 is enlarged drawing at the B of Fig. 5, embodies the connection structure for contradicting cambered surface and cleaning sponge.
Appended drawing reference: 1, support base；11, bottom plate；12, support rod；13, universal wheel；14, mounting hole；15, countercheck rod；16,
Sharp block；2, wire box is deposited；21, line outlet；22, bobbin winder bracket；23, driving motor；24, holding tank；25, slip hole；26, it is connected to
Hole；3, guide device；31, guide bracket；311, support portion；312, limiting section；313, placing groove；314, cambered surface is contradicted；32, it drives
Component；321, electric motor；322, screw rod is driven；323, reciprocating block；324, control piece；3241, microswitch；3242, it controls
Device；4, fixing piece；41, fixed link；42, adjustment hole；43, fixing groove；5, sliding part；51, basic blocks；52, sliding groove；53, it limits
Position slot；54, retention bead；6, cleaning device；61, water storage case；62, soakaway trench；63, water seepage hole；64, cleaning sponge.
Specific embodiment
The utility model is described further referring to attached drawing.
As shown in Figure 1, practical live pay off rack, including support base 1 are built in a kind of room, support base 1 includes bottom plate 11 and branch
Strut 12, support rod 12 are fixedly connected on bottom plate 11 and are vertically arranged.Bottom plate 11 is equipped on the side far from support rod 12
Four universal wheels 13, universal wheel 13 are located on four angles of bottom plate 11, are opened up on bottom plate 11 there are two the mounting hole 14 for being in rectangle,
Mounting hole 14 is located at the edge of bottom plate 11, and countercheck rod 15, interference between countercheck rod 15 and mounting hole 14 are provided in mounting hole 14
Cooperation, countercheck rod 15 is towards the sharp block 16 being fixedly connected on the one end on ground in tetrapyamid shape.
As shown in Figures 2 and 3, it is fixedly connected on the one end of support rod 12 far from bottom plate 11 and deposits wire box 2, deposit wire box 2
Line outlet 21 is offered on one end, deposits and bobbin winder bracket 22 is installed in wire box 2, driving motor 23 is fixedly connected on support rod 12,
The output shaft of driving motor 23 passes through support rod 12 and is fixedly connected with bobbin winder bracket 22.It deposits and is provided with guide device 3 in wire box 2, draw
Leading device 3 includes guide bracket 31 and driving assembly 32, and driving assembly 32 includes electric motor 321, driving screw rod 322, reciprocating block
323 and control piece 324.
As shown in Figure 3 and Figure 4, it deposits and offers holding tank 24 on one end of wire box 2, electric motor 321 is solid by fixing piece 4
Surely it is connected in holding tank 24, driving screw rod 322 is fixedly connected on the output shaft of electric motor 321, in a rectangular parallelepiped shape past
Multiblock 323 is set on driving screw rod 322 and is threadedly coupled with driving screw rod 322, two sides and the holding tank 24 of reciprocating block 323
Inner wall contradicts.It deposits and offers slip hole 25 in wire box 2, holding tank 24 is connected to by slip hole 25 with line outlet 21, and guide bracket 31 is solid
Surely it is connected in reciprocating block 323 and is located between the two sides inner wall of slip hole 25.Control piece 324 includes microswitch 3241 and control
Device 3242 processed, microswitch 3241 are fixedly connected on the both ends of holding tank 24 and are located in the movement routine of reciprocating block 323, control
Device 3242, which is fixedly connected on, to be deposited in wire box 2, and controller 3242 is electrically connected with microswitch 3241, controller 3242 and electric motor
321 electrical connections, controller 3242 are single-chip microcontroller.As shown in figure 5, guide bracket 31 includes the support portion 311 of integrated setting, limit
Portion 312 and placing groove 313, the support portion 311 being vertically arranged are fixedly connected in reciprocating block 323, and limiting section 312 is fixedly connected on
On support portion 311, the width of limiting section 312 is greater than the width of support portion 311, and placing groove 313 is provided with the upper end of limiting section 312
On face.
As shown in Figure 6 and Figure 7, electric motor 321 is fixedly connected in holding tank 24 by fixing piece 4, and fixing piece 4 includes
Fixed link 41, adjustment hole 42 and fixing groove 43, fixed link 41 are slidably connected on electric motor 321, the adjustment hole 42 of strip
It is provided with and deposits in wire box 2 and be connected to holding tank 24, adjustment hole 42 is vertically arranged, and fixing groove 43 is provided with the upper end of adjustment hole 42
And it is horizontally disposed, fixed link 41 is threaded through in adjustment hole 42.Fixed link 41 is slidably connected at electric motor 321 by sliding part 5
On, sliding part 5 includes basic blocks 51, sliding groove 52, limiting slot 53 and retention bead 54, and basic blocks 51 are fixedly connected on electronic horse
Up on 321 side wall, the sliding groove 52 of strip, length direction and the fixing groove 43 of sliding groove 52 are offered in basic blocks 51
Length direction is parallel, and limiting slot 53 is offered on the two sides inner wall of sliding groove 52, and fixed link 41 is slidably connected in limiting slot 53,
Retention bead 54 is fixedly connected on the two sides of fixed link 41, and retention bead 54 is located in limiting slot 53.
Cleaning device 6 is provided in wire box 2 as shown in figure 8, depositing, cleaning device 6 includes water storage case 61, soakaway trench 62, seeps
Water hole 63 and cleaning sponge 64, water storage case 61, which is fixedly connected on, to be deposited in wire box 2, is deposited and is offered intercommunicating pore 26, soakaway trench in wire box 2
62 one end is fixedly connected on the inner wall of line outlet 21 after passing through intercommunicating pore 26, and the other end and water storage case 61 of soakaway trench 62 connect
Logical, water seepage hole 63 is provided on soakaway trench 62, and cleaning sponge 64 is set on soakaway trench 62 and covers water seepage hole 63.Such as Fig. 5 and
Shown in Fig. 9, the upper end of limiting section 312, which offers, contradicts cambered surface 314, and the downside of cleaning sponge 64 is bonded with cambered surface 314 is contradicted.
In conclusion worker pushes countercheck rod 15 to ground when worker needs unwrapping wire, sharp block 16 is made to be inserted into ground
It is interior, fixed link 41 will be pushed, fixed link 41 is made to leave fixing groove 43, then fixed link 41 driven to move along adjustment hole 42, make electricity
The position of dynamic motor 321 reduces, and makes guide bracket 31 far from cleaning sponge 64, and worker pulls line at this time, make to be wrapped in around
Line on coil holder 22 leaves bobbin winder bracket 22, to carry out payoff operation；When needing to carry out take-up, the mobile fixed link 41 of worker,
Enter fixed link 41 in fixing groove 43, the position of electric motor 321 rises at this time, and guide bracket 31 and cleaning sponge 64 occur
It contradicts, then worker starts driving motor 23 and electric motor 321, and driving motor 23 drives bobbin winder bracket 22 to rotate, bobbin winder bracket 22
Line is wound, the rotation of electric motor 321 drives driving screw rod 322 to rotate, and the driving rotation of screw rod 322 drives reciprocating block 323
Mobile, reciprocating block 323 is mobile to drive guide bracket 31 mobile, and guide bracket 31 guides line, when reciprocating block 323 touch it is micro-
When dynamic switch 3241, microswitch 3241 is sent a signal at controller 3242, and controller 3242 changes upon receipt of the signals
The rotation direction of electric motor 321 keeps line equal so that reciprocating block 323 be made to carry out the change of moving direction at the both ends for depositing wire box 2
Even is wrapped on bobbin winder bracket 22.The cleaning sponge 64 being readily wetted by water simultaneously cleans line, reduces remaining dust on line.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. practical live pay off rack is built in a kind of room, it is characterized in that: including support base (1), it is fixedly connected on the support base (1)
It deposits wire box (2), described deposit is provided with bobbin winder bracket (22) in wire box (2), is fixedly connected with driving motor on the support base (1)
(23), the output shaft of the driving motor (23) is fixedly connected with the bobbin winder bracket (22), it is described deposit to be provided on wire box (2) draw
It leads device (3), the guide device (3) includes being slidably connected at the guide bracket (31) deposited on wire box (2), the driving guide bracket
(31) driving assembly (32) moved back and forth.
2. practical live pay off rack is built in a kind of room according to claim 1, it is characterized in that: the driving component (32) is wrapped
The output for including and being fixedly connected on the electric motor (321) deposited on wire box (2), be fixedly connected on the electric motor (321)
Driving screw rod (322) on axis, the reciprocating block (323) being threaded on driving screw rod (322), the control electronic horse
Up to the control piece (324) of (321) positive and negative rotation, the guide bracket (31) is fixedly connected with the reciprocating block (323).
3. practical live pay off rack is built in a kind of room according to claim 2, it is characterized in that: the control piece (324) wraps
Include be fixedly connected on it is described deposit the microswitch (3241) at wire box (2) both ends, be fixedly connected on it is described deposit on wire box (2) and with institute
The controller (3242) of microswitch (3241) signal connection is stated, the controller (3242) and the electric motor (321) are controlled
System connection, the microswitch (3241) are located in the movement routine of the reciprocating block (323).
4. practical live pay off rack is built in a kind of room according to claim 2, it is characterized in that: the electric motor (321)
By fixing piece (4) be fixedly connected on it is described deposit on wire box (2), the fixing piece (4) includes being slidably connected at the electronic horse
Up on (321) fixed link (41), be provided with the adjustment hole (42) deposited on wire box (2), be provided with the adjustment hole (42)
On fixing groove (43), the fixed link (41), which is located at, to be threaded through in the adjustment hole (42).
5. practical live pay off rack is built in a kind of room according to claim 4, it is characterized in that: the fixed link (41) passes through
Sliding part (5) is slidably connected on the electric motor (321), and the sliding part (5) includes being fixedly connected on the electronic horse
Up on (321) basic blocks (51), be provided on the basic blocks (51) sliding groove (52), be provided with the sliding groove (52)
Limiting slot (53) on inner wall, the retention bead (54) being fixedly connected on the fixed link (41), the retention bead (54)
It is slidably connected in limiting slot (53).
6. practical live pay off rack is built in a kind of room according to claim 1, it is characterized in that: described deposit sets on wire box (2)
It is equipped with cleaning device (6), the cleaning device (6) includes being fixedly connected on the water storage case (61) deposited on wire box (2), fixing
The soakaway trench (62) that is connected on the water storage case (61), fixed connects the water seepage hole (63) being provided on the soakaway trench (62)
The cleaning sponge (64) on the soakaway trench (62) is connect, the cleaning sponge (64) and the guide bracket (31) are far from reciprocating block
(323) one end fitting, the soakaway trench (62), which is fixedly connected on, deposits on wire box (2).
7. practical live pay off rack is built in a kind of room according to claim 6, it is characterized in that: the guide bracket (31) includes
The support portion (311) being fixedly connected on the reciprocating block (323), the limiting section being fixedly connected on the support portion (311)
(312), it is provided on the limiting section (312) for accommodating the placing groove (313) of line, the limiting section (312) is far from support
The one end in portion (311), which offers, contradicts cambered surface (314).
8. practical live pay off rack is built in a kind of room according to claim 1, it is characterized in that: pacifying on the support base (1)
Equipped with universal wheel (13), it is provided on the support base (1) for limiting support base (1) mobile countercheck rod (15), the resistance
Sharp block (16) are fixedly connected on bar (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820663450.2U CN208378053U (en) | 2018-05-05 | 2018-05-05 | Practical scene pay off rack is built in a kind of room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820663450.2U CN208378053U (en) | 2018-05-05 | 2018-05-05 | Practical scene pay off rack is built in a kind of room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208378053U true CN208378053U (en) | 2019-01-15 |
Family
ID=64973370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820663450.2U Active CN208378053U (en) | 2018-05-05 | 2018-05-05 | Practical scene pay off rack is built in a kind of room |
Country Status (1)
| Country | Link |
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| CN (1) | CN208378053U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763691A (en) * | 2019-10-22 | 2020-02-07 | 海风电气(江苏)有限公司 | Wind-powered electricity generation blade detecting system |
| CN111021742A (en) * | 2019-12-20 | 2020-04-17 | 中冶天工集团有限公司 | Device and method for paving row bricks |
| CN111021751A (en) * | 2019-12-20 | 2020-04-17 | 中冶天工集团有限公司 | Wire arranging device for pavement construction |
| CN111422680A (en) * | 2020-04-09 | 2020-07-17 | 李小朝 | House construction site pay-off rack for civil engineering and use method |
-
2018
- 2018-05-05 CN CN201820663450.2U patent/CN208378053U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763691A (en) * | 2019-10-22 | 2020-02-07 | 海风电气(江苏)有限公司 | Wind-powered electricity generation blade detecting system |
| CN111021742A (en) * | 2019-12-20 | 2020-04-17 | 中冶天工集团有限公司 | Device and method for paving row bricks |
| CN111021751A (en) * | 2019-12-20 | 2020-04-17 | 中冶天工集团有限公司 | Wire arranging device for pavement construction |
| CN111422680A (en) * | 2020-04-09 | 2020-07-17 | 李小朝 | House construction site pay-off rack for civil engineering and use method |
| CN111422680B (en) * | 2020-04-09 | 2022-03-08 | 李小朝 | House construction site pay-off rack for civil engineering and use method |
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