CN113586094A - Support-free suspension type slip form construction device and method - Google Patents
Support-free suspension type slip form construction device and method Download PDFInfo
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- CN113586094A CN113586094A CN202111007823.3A CN202111007823A CN113586094A CN 113586094 A CN113586094 A CN 113586094A CN 202111007823 A CN202111007823 A CN 202111007823A CN 113586094 A CN113586094 A CN 113586094A
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- 238000009751 slip forming Methods 0.000 title claims abstract description 23
- 239000000725 suspension Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 111
- 239000010959 steel Substances 0.000 claims abstract description 111
- 238000010276 construction Methods 0.000 claims abstract description 52
- 238000005096 rolling process Methods 0.000 claims abstract description 30
- 238000000465 moulding Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000007796 conventional method Methods 0.000 abstract description 3
- 230000008520 organization Effects 0.000 abstract description 3
- 238000009415 formwork Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 235000008565 Pinus banksiana Nutrition 0.000 description 1
- 241000218680 Pinus banksiana Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000010665 pine oil Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/102—Removable shuttering; Bearing or supporting devices therefor
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Abstract
The invention discloses a support-free suspension type slip form construction device and a support-free suspension type slip form construction method, wherein a rail can be connected with a station middle plate, a support platform system is L-shaped, one side of the support platform system is connected with the rail through a traveling mechanism capable of driving the support platform system to move along the rail, a rolling support can be connected with a station side wall, the other side of the support platform system is arranged on the rolling support, a first steel template and a second steel template are arranged on the inner side of the support platform system, the first steel template is connected with one side of the support platform system through a first telescopic device, and the second steel template is connected with the other side of the support platform system through a second telescopic device. The method can solve the problem that horizontal and vertical cross construction cannot be carried out on the shield, the platform plate, the track laying and the like in the conventional method, can avoid complex construction organization, can reduce safety risk in cross construction, and can also reduce the risk of construction period delay and labor saving.
Description
Technical Field
The invention relates to the technical field of subway station construction, in particular to a support-free suspension type slip form construction device and method.
Background
In the construction process of the main structure of the subway station, the construction is influenced by factors such as time lag issued by construction drawings, a plurality of restriction factors of primary pouring construction with a middle plate structure, complex process and the like, and a subway station rail top air channel is often constructed as an in-station secondary structure by adopting a post-pouring method, namely the middle plate structure is poured and joint reinforcing steel bars are reserved firstly, and construction of a specified air channel is carried out after the main structure is finished. The construction of the current rail top air channel post-pouring method generally adopts a full-hall type support method, and because the space of the lower area of the rail top air channel is narrow, the rail top air channel construction cannot form cross construction with shield construction, platform plate construction and track laying construction, so that the delay risk of subsequent major nodes is greatly increased. Although the construction optimization process adopting the formwork hanging method is adopted at present, the construction of the formwork hanging method for the templates, the transverse and longitudinal beams, the primary and secondary ridges and the like still needs to build temporary construction scaffolds, and the temporary construction scaffolds, the shield, the platform plate and the track laying still have certain influence.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a support-free suspension type sliding form construction device and a support-free suspension type sliding form construction method.
The technical scheme adopted by the invention is as follows:
the utility model provides a no support suspension type slipform construction equipment, includes support platform system, first steel form, second steel form, rolling support and track, the track can be connected with the station medium plate, and support platform system's shape is the L type, support platform system one side with be connected through the advancing mechanism that can drive support platform system along rail movement between the track, rolling support can be connected with the station side wall, and support platform system's another side sets up on rolling support, and first steel form and second steel form set up in support platform system's inboard, and first steel form is connected through one side of first telescoping device with support platform system, and the second steel form is connected through the another side of second telescoping device with support platform system.
Preferably, the track is detachably connected with an embedded steel plate, and the embedded steel plate is embedded in the middle plate of the station in advance.
Preferably, the support platform system comprises two planar steel frames, and the two planar steel frames are vertically connected.
Preferably, the advancing mechanism comprises a pulley block and a motor, the pulley block comprises a pulley and a pulley mounting seat, the pulley is mounted on the pulley mounting seat, the pulley is arranged on the track, and an output shaft of the motor is connected with a rotating shaft of the pulley.
Preferably, the track adopts the rail, and the pulley mount pad is a U-shaped mount pad, and the pulley sets up in the inboard of pulley mount pad wing limit, and the distance between the pulley mount pad wing limit is greater than the width on rail bottom flange, and inside the bottom flange of rail stretched into pulley mount pad opening, the pulley set up in the upper portion on rail bottom flange, the bottom surface on pulley mount pad was connected with the top on one side of support platform system.
Preferably, the rolling support comprises a support frame and a roller, the support frame can be connected with a side wall of the station, and the roller is arranged at the top of the support frame and is in contact with the support platform system.
Preferably, the shape of the first steel template is matched with the shape of the bottom surface of the outer surface of the rail top air duct contour line, and the shape of the second steel template is matched with the shape of the side surface of the outer surface of the rail top air duct contour line.
Preferably, the first telescopic device and the second telescopic device both adopt jacks.
The invention also provides a construction method of the support-free suspension type slip form, which is carried out by accidentally damaging the support-free suspension type slip form construction device and comprises the following steps:
connecting a track with a station middle plate, connecting a rolling support with a station side wall, connecting one side of a support platform system with the track through a traveling mechanism, and arranging the other side of the support platform system on the rolling support;
the first steel template and the second steel template are respectively controlled to move through the first telescopic device and the second telescopic device, so that the first steel template moves to a position corresponding to the bottom surface of the outer surface of the top track air duct contour line, the second steel template moves to a position on the side surface of the outer surface of the top track air duct contour line, and the first steel template and the second steel template are respectively used as outer templates of the bottom surface and the side surface of the outer surface of the top track air duct contour line;
constructing and molding the rail top air duct, removing an end template and an inner template of the rail top air duct after the maintenance of the rail top air duct is finished, and respectively controlling the first steel template and the second steel template to be separated from the surface of the rail top air duct through the first telescopic device and the second telescopic device;
and driving the support platform system to move to the next construction position through the advancing mechanism, and constructing the next section of rail top air channel.
Preferably, at the reinforcement stage of station medium plate, connect pre-buried steel sheet on the reinforcing bar of station medium plate, pre-buried steel sheet exposes in the surface of station medium plate, when being connected track and station medium plate, can dismantle track and pre-buried steel sheet and be connected.
The invention has the following beneficial effects:
in the support-free suspension type sliding formwork construction device, one side of the support platform system is connected with the track through the advancing mechanism capable of driving the support platform system to move along the track, so that the support platform system moves, and the continuous construction of a rail top air channel is ensured; the support platform system can be supported by arranging the rolling support, so that the position of the support platform system is ensured, the support platform system can roll forward when moving, the moving resistance of the support platform system is reduced, and the smooth moving of the support platform system is ensured; by arranging the first steel template, the second steel template and the first and second expansion devices, the first steel template and the second steel template can be respectively controlled to move through the first expansion device and the second expansion device, so that the first steel template is moved to a position corresponding to the bottom surface of the outer surface of the top track air duct contour line, the second steel template is moved to a position on the side surface of the outer surface of the top track air duct contour line, and the first steel template and the second steel template are respectively used as outer templates of the bottom surface and the side surface of the outer surface of the top track air duct contour line; when the support-free suspension type sliding form construction device is used, the whole device can be arranged at the whole vertex angle position of a station by utilizing the track and the rolling support, the occupied space is small, the problem that the horizontal and vertical cross construction cannot be carried out on the track top air duct construction, the shield, the station bedplate, the track laying and the like in the conventional method is solved, the complex construction organization can be avoided, the safety risk in the cross construction can be reduced, and the risk of construction period delay and labor nesting can be reduced. Drawings
Fig. 1(a) is a schematic perspective view of a stentless suspended slipform construction apparatus of the present invention; fig. 1(b) is a side view of the present invention, without a cradle, suspended slipform construction device;
FIG. 2 is an exploded view of the present invention, shown in the form of a suspensory slipform construction device;
FIG. 3 is a schematic view of a rack platform system of the present invention;
FIG. 4 is a detail view of the pulley block and motor employed in the present invention;
FIG. 5 is a schematic view of the template system of the present invention;
FIG. 6 is a plan view of a track system unit of the present invention;
FIG. 7 is an exploded view of a track system unit of the present invention;
FIG. 8(a) is a first detail view of a rail system unit member of the present invention; FIG. 8(b) is a second detail view of a rail system unit member of the present invention;
FIG. 9 is a schematic view of the rolling shoe of the present invention;
fig. 10(a) is a diagram showing the relative position relationship between the stentless suspended slipform construction apparatus of the present invention and the rail head duct type 1; fig. 10(b) is a diagram showing the relative position of the stentless suspended slipform construction apparatus of the present invention and the rail head duct type 2; (ii) a
FIG. 11 is a flow chart of a method of the present invention for a stentless suspended slip form construction;
fig. 12 is a schematic view of the present invention, when the construction apparatus starts moving during construction;
fig. 13 is a schematic view of the present invention, without a cradle, suspended slipform construction device, during movement during construction;
fig. 14 is a schematic view of the present invention of a stentless suspended slipform construction apparatus at the completion of its movement during construction.
Wherein: the system comprises a support platform system 1, a main body support 1-1, a pulley block 1-2, a motor 1-3, a template system 2, a first steel template 2-1, a jack 2-2, a second steel template 2-3, a track system unit 3, a pre-buried steel plate 3-1, a steel backing plate 3-2, an elastic strip 3-3, a bolt 3-4, a steel rail 3-5, a rolling support 4-1, a support frame 4-1, an idler wheel 4-2, a transverse longitudinal beam 5, a station middle plate 6, a station side wall 7 and a rail top air duct contour line 8.
Detailed Description
The invention is further described below with reference to the figures and examples.
Referring to fig. 1(a), 1(b), 2, 3, 10(a), 10(b) and 12 to 14, the support-free suspended slipform construction device of the present invention includes a support platform system, a first steel form 2-1, a second steel form 2-3, a rolling support 4 and a track, wherein the track can be connected to a station middle plate 6, the support platform system is L-shaped, one side of the support platform system is connected to the track through a traveling mechanism capable of driving the support platform system to move along the track, the rolling support 4 can be connected to a station side wall 7, the other side of the support platform system is disposed on the rolling support 4, the first steel form 2-1 and the second steel form 2-3 are disposed inside the support platform system, the first steel form 2-1 is connected to one side of the support platform system through a first telescoping device, the second steel moulding plate 2-3 is connected with the other side of the bracket platform system through a second telescopic device.
Referring to fig. 1(a), 1(b), 2, 3, 6, 7, 8(a), 8(b), 10(a), 10(b) and 12 to 14, as a preferred embodiment of the present invention, an embedded steel plate 3-1 is detachably connected to the track, and the embedded steel plate 3-1 is embedded in the station middle plate 6.
Referring to fig. 1(a), 1(b), 2, 3, 10(a) and 10(b), the support platform system includes two planar steel frames vertically connected.
As a preferred embodiment of the invention, referring to fig. 3 and 4, the travelling mechanism comprises a pulley block 1-2 and a motor 1-3, the pulley block 1-2 comprises a pulley and a pulley mounting seat, the pulley is mounted on the pulley mounting seat, the pulley is arranged on a track, and an output shaft of the motor 1-3 is connected with a rotating shaft of the pulley.
Referring to fig. 1(a), 1(b), 2, 3, 4, 6, 7, 8(a), 10(b) and 12 to 14, as a preferred embodiment of the present invention, a rail 5 is used as the track, the pulley mount is a U-shaped mount, the pulleys are disposed inside the flanges of the pulley mount, the distance between the flanges of the pulley mount is greater than the width of the lower flange of the rail 5, the lower flange of the rail 5 extends into the opening of the pulley mount, the pulleys are disposed above the lower flange of the rail 5, and the bottom surface of the pulley mount is connected to the top of the side of the support platform system.
Referring to fig. 1(a), 1(b), 2, 9, 10(a), 10(b) and 12 to 14, the rolling support 4 comprises a support frame 4-1 and a roller 4-2, the support frame 4-1 can be connected with the station side wall 7, and the roller 4-2 is arranged on the top of the support frame 4-1 and contacts with the support platform system.
Referring to fig. 10(a) and 10(b), the shape of the first steel molding plate 2-1 is matched with the shape of the bottom surface of the outer surface of the rail top air duct contour line 8, and the shape of the second steel molding plate 2-3 is matched with the shape of the side surface of the outer surface of the rail top air duct contour line 8.
Referring to fig. 10(a) and 10(b), as a preferred embodiment of the present invention, a jack 2-2 is used for each of the first and second telescopic devices.
Referring to fig. 11 to 14, the method for constructing the rail head duct by using the bracket-free suspended slipform construction device of the present invention includes the following steps:
connecting a track with a station middle plate 6, connecting a rolling support 4 with a station side wall 7, connecting one side of a support platform system with the track through a traveling mechanism, and arranging the other side of the support platform system on the rolling support 4;
respectively controlling a first steel template 2-1 and a second steel template 2-3 to move through a first telescopic device and a second telescopic device, so that the first steel template 2-1 is moved to a position corresponding to the bottom surface of the outer surface of the rail top air duct contour line 8, the second steel template 2-3 is moved to a position on the side surface of the outer surface of the rail top air duct contour line 8, and the first steel template 2-1 and the second steel template 2-3 are respectively used as outer templates of the bottom surface and the side surface of the outer surface of the rail top air duct contour line 8;
constructing and molding the rail top air duct, removing an end template and an inner template of the rail top air duct after the maintenance of the rail top air duct is finished, and respectively controlling the first steel template 2-1 and the second steel template 2-3 to be separated from the surface of the rail top air duct through the first telescopic device and the second telescopic device;
and driving the support platform system to move to the next construction position through the advancing mechanism, and constructing the next section of rail top air channel.
As a preferred embodiment of the present invention, referring to fig. 1(a), 1(b), 2, 6, 7, 8(a), 8(b), 10(a), 10(b), and 12 to 14, in the stage of binding the reinforcing bars of the station intermediate plate 6, the embedded steel plates 3-1 are connected to the reinforcing bars of the station intermediate plate 6, the embedded steel plates 3-1 are exposed on the surface of the station intermediate plate 6, and when the track and the station intermediate plate 6 are connected, the track and the embedded steel plates 3-1 are detachably connected.
Examples
As shown in fig. 1(a), 1(b), and 2, the support-less suspended slipform construction apparatus of this embodiment includes a support platform system 1, a formwork system 2, a rail system unit 3, and a rolling support 4. As shown in fig. 3 and 4, the support platform system 1 includes a main body support 1-1, a pulley block 1-2, and a motor 1-3, the pulley block 1-2 is bolted to the main body support 1-1, so that the main body support 1-1 can be suspended below the rail system unit 3 and slide, and the motor 1-3 is located at the foremost end of the pulley block 1-2, so that the support platform system 1 and the template system 2 can travel. As shown in fig. 5, the formwork system 2 includes a steel formwork and a jack 2-2, wherein a base of the jack 2-2 is fixed at a corresponding position of the main body bracket 1-1, a head of the jack 2-2 is welded to the steel formwork, and the spacing lifting and adjusting of the formwork can be realized by jacking and contracting the jack. As shown in fig. 6, 7, 8(a) and 8(b), the rail system unit 3 includes an embedded steel plate 3-1, a steel plate 3-2, an elastic strip 3-3, a bolt 3-4 and a steel rail 3-5, wherein the embedded steel plate 3-1 is embedded in advance when the middle plate steel bar is bound, the steel rail 3-5 is fixed by force by tightening the steel plate 3-2 and the elastic strip 3-3, and the steel rail is connected with the embedded steel plate 3-1 by the bolt 3-4. As shown in fig. 9, the rolling support 4 is effectively connected with the structural side wall through an expansion bolt, and the rigid roller above the support can rotate to realize forward rolling of the slip form system. As shown in fig. 10(a) and 10(b), which are diagrams of relative positions of the suspended sliding form device and the rail-jacking air duct, when the structural form of the rail-jacking air duct is as shown in fig. 10(b), the main body bracket 1-1 needs to be additionally provided with the transverse and longitudinal beams 5, the base of the jack 2-2 is fixed at the corresponding position of the transverse and longitudinal beams 5, and the head of the jack 2-2 is welded with the steel formwork.
Referring to fig. 11-14, the specific operation steps of the present embodiment of the stentless suspended slipform construction apparatus in use include:
(1) pre-burying a steel plate: and in the middle plate steel bar binding stage, the embedded steel plates are arranged at corresponding positions, and the steel plate bolt holes are prevented from being polluted during concrete pouring.
(2) Hoisting the suspended sliding form device in place and assembling: and after the working surface of the station rail top air duct construction area is provided, the suspension type slip form device is hoisted into the construction working surface through the shield hoisting well, and the assembly and the forming of each system are completed.
(3) Installing a rail system unit and a rolling support: and when the device is assembled, a temporary support is erected, the track system unit is in place, and the rolling support is punched and installed at the corresponding position of the side wall.
(4) The suspension type sliding form device is suspended in place: the device is suspended in place by the cooperation of a plurality of people through the chain block.
(5) The template of the suspension type sliding form device is in place, the reinforcing steel bars are bound, and concrete is poured: and adjusting the steel template and positioning after the suspended sliding form device is positioned, installing a grout stopping strip, beginning binding steel bars, installing an inner mold and an end template after finishing the binding, pouring concrete and maintaining.
(6) Removing the mold: and (4) after the concrete reaches the strength condition, successively removing the end template and the inner template, and returning the jack pine oil and the steel template.
(7) The suspension type sliding form device walks: as shown in fig. 11 to 13, the suspended sliding form device travels slowly, after the rear rail system unit is completely separated from the pulley block, the suspended sliding form device stops moving, the rear rail system unit is removed synchronously, the unit is installed on the pre-buried steel plate in front of the device manually, the rear rolling support is removed and installed at the corresponding position in front of the device, and the operation is repeated to realize the traveling in place of the device.
(8) And (3) completing and dismantling the construction of the suspension type slip form device: and (5) completing the construction of the rail top air duct after repeated circulation according to the steps (5) to (7). And at the moment, a chain block is adopted to hoist the device to the position below the rail top air channel, and the device is hoisted out of the shield hoisting well after being dismantled.
The method can solve the problem that horizontal and vertical cross construction cannot be carried out on the shield, the platform plate, the track laying and the like in the conventional method, avoid complex construction organization, reduce safety risk in cross construction, and reduce the risk of construction period delay and work nest.
Claims (10)
1. A support-free suspension type slip form construction device is characterized by comprising a support platform system, a first steel template (2-1), a second steel template (2-3), a rolling support (4) and a track, the rail can be connected with a station middle plate (6), the support platform system is L-shaped, one side of the support platform system is connected with the rail through a travelling mechanism capable of driving the support platform system to move along the rail, a rolling support (4) can be connected with a station side wall (7), the other side of the support platform system is arranged on the rolling support (4), a first steel template (2-1) and a second steel template (2-3) are arranged on the inner side of the support platform system, the first steel template (2-1) is connected with one side of the support platform system through a first telescopic device, and the second steel template (2-3) is connected with the other side of the support platform system through a second telescopic device.
2. The construction device of the support-free suspension type slip form as claimed in claim 1, wherein the track is detachably connected with an embedded steel plate (3-1), and the embedded steel plate (3-1) is embedded in the station middle plate (6).
3. The stentless suspension slip form construction apparatus of claim 1, wherein the stent platform system comprises two planar steel frames, the two planar steel frames being connected vertically.
4. The construction device of a suspensory slipform without a support according to claim 1, characterized in that the travelling mechanism comprises a pulley block (1-2) and a motor (1-3), the pulley block (1-2) comprises a pulley and a pulley mounting seat, the pulley is mounted on the pulley mounting seat, the pulley is arranged on the track, and the output shaft of the motor (1-3) is connected with the rotating shaft of the pulley.
5. The construction device of a suspensory slipform without a support according to claim 4, wherein the rail is a steel rail (5), the pulley mounting seat is a U-shaped mounting seat, the pulley is arranged at the inner side of the wing edges of the pulley mounting seat, the distance between the wing edges of the pulley mounting seat is larger than the width of the lower flange of the steel rail (5), the lower flange of the steel rail (5) extends into the opening of the pulley mounting seat, the pulley is arranged at the upper part of the lower flange of the steel rail (5), and the bottom surface of the pulley mounting seat is connected with the top of one side of the support platform system.
6. The construction device of a support-free suspended slipform according to claim 1, characterized in that the rolling support (4) comprises a support frame (4-1) and rollers (4-2), the support frame (4-1) can be connected with the station side wall (7), and the rollers (4-2) are arranged on top of the support frame (4-1) and contact with the support platform system.
7. The construction device of a bracket-free suspension sliding form according to claim 1, characterized in that the shape of the first steel form (2-1) is adapted to the shape of the bottom surface of the outer surface of the rail top air duct contour line (8), and the shape of the second steel form (2-3) is adapted to the shape of the side surface of the outer surface of the rail top air duct contour line (8).
8. A suspensionless slipform construction device according to claim 1, wherein the first and second telescopic devices each employ a jack (2-2).
9. A method for constructing a supportless suspended slipform, which is performed by using the supportless suspended slipform construction apparatus of any one of claims 1 to 8, comprising the steps of:
connecting a track with a station middle plate (6), connecting a rolling support (4) with a station side wall (7), connecting one side of a support platform system with the track through a traveling mechanism, and arranging the other side of the support platform system on the rolling support (4);
the first steel template (2-1) and the second steel template (2-3) are respectively controlled to move through the first telescopic device and the second telescopic device, so that the first steel template (2-1) moves to a position corresponding to the bottom surface of the outer surface of the rail top air duct contour line (8), the second steel template (2-3) moves to a position on the side surface of the outer surface of the rail top air duct contour line (8), and the first steel template (2-1) and the second steel template (2-3) are respectively used as outer templates of the bottom surface and the side surface of the outer surface of the rail top air duct contour line (8);
constructing and molding the rail top air duct, dismantling an end template and an inner template of the rail top air duct after the maintenance of the rail top air duct is finished, and respectively controlling a first steel template (2-1) and a second steel template (2-3) to be separated from the surface of the rail top air duct through a first telescopic device and a second telescopic device;
and driving the support platform system to move to the next construction position through the advancing mechanism, and constructing the next section of rail top air channel.
10. The construction method of the support-free suspension sliding form according to claim 9, wherein in a steel bar binding stage of the station middle plate (6), the embedded steel plate (3-1) is connected to the steel bar of the station middle plate (6), the embedded steel plate (3-1) is exposed out of the surface of the station middle plate (6), and when the rail is connected with the station middle plate (6), the rail is detachably connected with the embedded steel plate (3-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111007823.3A CN113586094A (en) | 2021-08-30 | 2021-08-30 | Support-free suspension type slip form construction device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111007823.3A CN113586094A (en) | 2021-08-30 | 2021-08-30 | Support-free suspension type slip form construction device and method |
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| CN113586094A true CN113586094A (en) | 2021-11-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044130A (en) * | 2022-11-16 | 2023-05-02 | 广东省建筑机械厂有限公司 | Special equipment for mounting subway assembly type components and mounting method of assembly type air duct |
-
2021
- 2021-08-30 CN CN202111007823.3A patent/CN113586094A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044130A (en) * | 2022-11-16 | 2023-05-02 | 广东省建筑机械厂有限公司 | Special equipment for mounting subway assembly type components and mounting method of assembly type air duct |
| CN116044130B (en) * | 2022-11-16 | 2023-10-27 | 广东省建筑机械厂有限公司 | Special equipment for mounting subway assembly type components and mounting method of assembly type air duct |
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