CN112744714A - Shock-proof type platform for tower crane - Google Patents
Shock-proof type platform for tower crane Download PDFInfo
- Publication number
- CN112744714A CN112744714A CN202110018860.8A CN202110018860A CN112744714A CN 112744714 A CN112744714 A CN 112744714A CN 202110018860 A CN202110018860 A CN 202110018860A CN 112744714 A CN112744714 A CN 112744714A
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- Prior art keywords
- shock
- platform
- fixedly connected
- tower crane
- colloid
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- 230000035939 shock Effects 0.000 claims abstract description 48
- 239000000084 colloidal system Substances 0.000 claims abstract description 42
- 238000013016 damping Methods 0.000 claims description 40
- 230000001681 protective effect Effects 0.000 claims description 10
- 229920000742 Cotton Polymers 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims 3
- 238000003780 insertion Methods 0.000 claims 3
- 238000010521 absorption reaction Methods 0.000 abstract description 19
- 238000003466 welding Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/52—Details of compartments for driving engines or motors or of operator's stands or cabins
- B66C13/54—Operator's stands or cabins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/0232—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means with at least one gas spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
- F16F15/085—Use of both rubber and metal springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
- F16F2222/126—Fluid damping using gases
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a shock-absorbing platform for a tower crane, which comprises: the automobile shock absorption device comprises a shock absorption platform, a colloid shock absorption air bag, ear plates and an elastic connecting piece, wherein the tops of the ear plates are fixedly connected with connecting plates through welding, the shock absorption platform is fixedly connected between the connecting plates through welding, the two ends of the connecting plates are fixedly connected with connecting seats through clamping, and a control room is fixedly connected above the shock absorption platform through welding between the connecting seats.
Description
Technical Field
The invention relates to the technical field of tower cranes, in particular to a damping type platform for a tower crane.
Background
The tower crane is the most common hoisting equipment on the construction site, also called tower crane, and is used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction by the extension (height) of one section and one section (called standard section for short). The tower crane is an indispensable device on a construction site. Tower cranes are classified into two major types, an upper slewing tower crane and a lower slewing tower crane. The bearing capacity of the former is higher than that of the latter, and what we see in many construction sites is the tower crane with the upper rotary type and the upper lifting and the joint height. The method is divided into the following steps according to whether the mobile terminal can move or not: walking and stationary. The fixed tower body of the tower crane is fixed and does not rotate, and is arranged on a whole concrete foundation or a strip-shaped X-shaped concrete foundation. In the construction of houses, a fixed type is generally adopted.
1. Among the prior art tower crane's driver control platform passes through bolt fixed mounting on rotary platform, however, in the use, the shock attenuation effect of driver control room platform is not good, influences driver's operation and experiences.
2. In the prior art, a driver control room of a tower crane generally works at a high altitude, and the control room is generally in a sealed state for preventing wind disturbance, so that narrow and small control rooms are easy to cause unsmooth ventilation.
Disclosure of Invention
The invention aims to provide a damping type platform for a tower crane, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a shock-absorbing platform for a tower crane, comprising: shock attenuation platform, colloid shock attenuation gasbag, otic placode and elastic connection spare, welded fixedly connected with connecting plate is passed through at the otic placode top, pass through welded fixedly connected with shock attenuation platform between the connecting plate, joint fixedly connected with connecting seat is passed through at the connecting plate both ends, lie in the shock attenuation platform top between the connecting seat and pass through welded fixedly connected with control room, connecting seat top and connecting plate junction part pass through joint fixed connection elastic connection spare, the control room bottom is through joint fixedly connected with briquetting, the inside briquetting below that is located of shock attenuation platform passes through joint fixedly connected with colloid shock attenuation gasbag, colloid shock attenuation gasbag top one side is through coupling fixedly connected with automatic discharge valve, the control room bottom is located the automatic discharge valve top and is assisted the heater through screw fixedly connected with electricity.
Preferably, the shock absorbing platform further comprises: the air filter cotton is arranged inside the damping platform and located on one side of the colloid damping air bag, and the air filter cotton is fixedly connected with the damping platform through a clamping connection.
Preferably, the gel shock-absorbing airbag further comprises: the rubber damping air bag comprises an air inlet pipe and a self-suction valve, wherein one side of the rubber damping air bag is fixedly connected with the air inlet pipe through a pipe joint, and one end, far away from the rubber damping air bag, of the air inlet pipe is fixedly connected with the self-suction valve through a pipe joint.
Preferably, the connection plate further includes: and the two ends of the connecting plate are fixedly connected with the connecting seat clamping part through welding.
Preferably, the elastic connection member further comprises: rubber gasket, helmet, nut and spring, the connecting seat top surface has the rubber gasket through pegging graft, there is the helmet rubber gasket top through pegging graft, the helmet top is pegged graft and is had the double-shim, double-shim top threaded connection has the nut, there is the spring through the joint between helmet bottom and the rubber gasket top.
Preferably, the bottom of the control room is positioned above the electric auxiliary heating wire and is fixedly connected with a protective net through a clamping joint.
Preferably, the electric auxiliary heating wire is electrically connected with a temperature control switch.
Preferably, the contact part of the top of the colloid damping air bag and the pressing block is glued with wear-resistant rubber.
Preferably, the damping platform is internally provided with a damping groove on the outer side of the pressing block.
Preferably, the pressing block is clamped with the outer wall of the automatic exhaust valve.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the damping platform for the tower crane, the lug plate of the rotary platform and the damping platform are integrally formed by welding when the damping platform for the tower crane is used, when the rotary platform vibrates, the vibration is absorbed through the elasticity of the rubber damping air bag in the damping platform, and the vibration is absorbed through the protective cap in the elastic connecting piece and the restorable deformation of the spring, so that the vibration of a control room is reduced, and the working experience of a driver is ensured.
2. The invention realizes the shock absorption of the control chamber by the colloid shock absorption air bag when the shock absorption type platform for the tower crane is used by the arranged shock absorption platform, the colloid shock absorption air bag can be repeatedly compressed and restored in the shock absorption process, when the colloid shock absorption air bag is compressed, the air in the colloid shock absorption air bag is discharged by the automatic exhaust valve and enters the control chamber through the protective net at the bottom of the control chamber to supplement the air in the control chamber, when the colloid shock absorption air bag is gradually restored by the self elasticity, because the air pressure in the colloid shock absorption air bag is less than the external air pressure, the automatic exhaust valve is closed, the self-absorption valve is automatically opened, the external air is filtered by the air filter cotton under the pressure effect and enters the colloid shock absorption air bag through the self-absorption valve and the air inlet pipe, and the restoration of the colloid shock absorption air bag is ensured, through repeated compression and recovery in the damping process of the colloid damping air bag, automatic ventilation in the control room is realized, the ventilation process is mild, and wind disturbance is prevented.
Drawings
FIG. 1 is a schematic cross-sectional view of the overall front view structure of the present invention;
FIG. 2 is a schematic cross-sectional side view of the overall left-hand side view of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is an enlarged view of the connection structure of the rubber shock-absorbing airbag of the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 2 according to the present invention.
In the figure: 1-a shock absorbing platform; 101-air filter cotton; 2-a colloid damping air bag; 201-air inlet pipe; 202-a self-priming valve; 3-a control room; 4-briquetting; 5-automatic exhaust valve; 6-electric auxiliary heating wire; 7-ear plate; 8-connecting plates; 801-screw; 9-a connecting seat; 10-an elastic connector; 1001-rubber gasket; 1002-protective cap; 1003-double gasket; 1004-nut; 1005-spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a shock-absorbing platform for a tower crane, comprising: a damping platform 1 and a colloid damping air bag 2, 7 otic placodes and elastic connection spare 10, 7 tops of otic placode are through welded fixedly connected with connecting plate 8, through welded fixedly connected with shock attenuation platform 1 between the connecting plate 8, joint fixedly connected with connecting seat 9 is passed through at 8 both ends of connecting plate, it passes through welded fixedly connected with control room 3 to lie in 1 tops of shock attenuation platform between the connecting seat 9, connecting seat 9 tops and connecting plate 8 are connected the position and pass through joint fixedly connected with elastic connection spare 10, 3 bottoms in the control room are through joint fixedly connected with briquetting 4, 1 inside of shock attenuation platform lies in briquetting 4 below through joint fixedly connected with colloid shock attenuation gasbag 2, 2 tops of colloid shock attenuation gasbag are through coupling fixedly connected with automatic exhaust valve 5 in one side, 3 bottoms in automatic exhaust valve 5 tops in the automatic exhaust valve 6 through screw fixedly connected with electricity auxiliary heating wire, shock attenuation platform: air filter 101, 1 inside colloid shock attenuation gasbag one side of being located of shock attenuation platform is through joint fixedly connected with air filter 101, and colloid shock attenuation gasbag 2 still includes: intake pipe 201 and from inhaling valve 202, colloid shock attenuation gasbag 2 one side is through coupling fixedly connected with intake pipe 201, and intake pipe 201 is kept away from 2 one end of colloid shock attenuation gasbag and is passed through coupling fixedly connected with from inhaling valve 202, and connecting plate 8 still includes: screw rod 801, 8 both ends of connecting plate and 9 joint positions of connecting seat are connected with screw rod 801 through welded fastening, and elastic connecting piece 10 still includes: rubber gasket 1001, helmet 1002, nut 1004 and spring 1005, there is rubber gasket 1001 connecting seat 9 top surface through pegging graft, there is helmet 1002 rubber gasket 1001 top through pegging graft, there is double-disk 1003 top peg graft, double-disk 1003 top threaded connection has nut 1004, there is spring 1005 through the joint between helmet 1002 bottom and the rubber gasket 1001 top, 3 bottoms in the control room are located 6 tops of electricity auxiliary heater and are passed through joint fixedly connected with protection network, 6 electrically connected with temperature detect switch of electricity auxiliary heater, 2 tops of colloid shock attenuation gasbag and 4 contact site of briquetting have wear-resisting rubber through the glue, the damping tank has been seted up in the 4 outsides of briquetting to damping platform 1 inside being located, 5 outer wall joints of briquetting 4 and automatic exhaust valve.
The working principle is as follows: when the shock-absorbing type platform for the tower crane is used, the lug plate 7 of the rotary platform and the shock-absorbing platform 1 form a whole by welding, when the rotary platform moves to generate vibration, the vibration is absorbed by the elasticity of the colloid shock-absorbing air bag 2 in the shock-absorbing platform 1, the vibration is absorbed by the protective cap 1002 in the elastic connecting piece 10 and the restorable deformation of the spring 1005, the vibration of the control room 3 is reduced, and the working experience of a driver is ensured.
When the damping type platform for the tower crane is used, the control chamber 3 is damped through the colloid damping air bag 2, the colloid damping air bag 2 can be repeatedly compressed and restored in the damping process, when the colloid damping air bag 2 is compressed, air in the colloid damping air bag 2 is discharged through the automatic exhaust valve 5 at the moment, enters the control chamber 3 through the protective net at the bottom of the control chamber 3, air is supplemented into the control chamber 3, when the colloid damping air bag 2 is gradually restored through self elasticity, because the air pressure in the colloid damping air bag 2 is smaller than the external air pressure, the automatic exhaust valve 5 is closed at the moment, the self-suction valve 202 is automatically opened, the external air is filtered through the air filter cotton 101 under the pressure effect, enters the colloid damping air bag 2 through the self-suction valve 202 and the air inlet pipe 201, the restoration of the colloid damping air bag 2 is ensured, and the repeated compression and restoration in the damping process of the colloid damping air bag 2 are carried out, automatic ventilation in the control room 3 is realized, the ventilation process is mild, and wind disturbance is prevented.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a shock-proof type platform for tower crane which characterized in that includes:
a damping platform (1);
a colloid damping air bag (2);
an ear plate (7);
an elastic connecting piece (10),
wherein, welded fixedly connected with connecting plate (8) is passed through at otic placode (7) top, be connected with shock attenuation platform (1) through welded fixedly between connecting plate (8), joint fixedly connected with connecting seat (9) are passed through at connecting plate (8) both ends, lie in shock attenuation platform (1) top between connecting seat (9) and pass through welded fixedly connected with control room (3), connecting seat (9) top is connected the position with connecting plate (8) and is passed through joint fixedly connected with elastic connecting piece (10), joint fixedly connected with briquetting (4) are passed through to control room (3) bottom, shock attenuation platform (1) inside is located briquetting (4) below and is passed through joint fixedly connected with colloid shock attenuation gasbag (2), colloid shock attenuation gasbag (2) top one side is through coupling fixedly connected with automatic exhaust valve (5), control room (3) bottom is located automatic exhaust valve (5) top and is passed through screw fixedly connected with electricity and is assisted with heat and is A filament (6).
2. The shock-absorbing platform for the tower crane according to claim 1, wherein: the shock-absorbing platform (1) further comprises: air filter cotton (101), the inside colloid shock attenuation gasbag (2) that is located of shock attenuation platform (1) one side is through joint fixedly connected with air filter cotton (101).
3. The shock-absorbing platform for the tower crane according to claim 1, wherein: the colloid shock-absorbing air bag (2) further comprises:
an intake pipe (201);
a self-priming valve (202),
wherein, colloid shock attenuation gasbag (2) one side is through coupling fixedly connected with intake pipe (201), intake pipe (201) are kept away from colloid shock attenuation gasbag (2) one end and are passed through coupling fixedly connected with from inhaling valve (202).
4. The shock-absorbing platform for the tower crane according to claim 1, wherein: the connection plate (8) further comprises: the screw rod (801), the screw rod (801) is connected with the joint position of connecting seat (9) through welded fastening in connecting plate (8) both ends.
5. The shock-absorbing platform for the tower crane according to claim 1, wherein: the elastic connection (10) further comprises:
a rubber gasket (1001);
a protective cap (1002);
a nut (1004);
a spring (1005),
the rubber gasket (1001) is arranged on the top surface of the connecting seat (9) through insertion, the protective cap (1002) is arranged above the rubber gasket (1001) through insertion, the double gasket (1003) is arranged on the top of the protective cap (1002) through insertion, the nut (1004) is in threaded connection with the upper side of the double gasket (1003), and the spring (1005) is arranged between the bottom of the protective cap (1002) and the top of the rubber gasket (1001) through clamping.
6. The shock-absorbing platform for the tower crane according to claim 1, wherein: the bottom of the control room (3) is positioned above the electric auxiliary heating wire (6) and is fixedly connected with a protective net through a clamping joint.
7. The shock-absorbing platform for the tower crane according to claim 1, wherein: the electric auxiliary heating wire (6) is electrically connected with a temperature control switch.
8. The shock-absorbing platform for the tower crane according to claim 1, wherein: the contact part of the top of the colloid damping air bag (2) and the pressing block (4) is glued with wear-resistant rubber.
9. The shock-absorbing platform for the tower crane according to claim 1, wherein: the damping platform (1) is internally provided with a damping groove on the outer side of the pressing block (4).
10. The shock-absorbing platform for the tower crane according to claim 1, wherein: the pressing block (4) is clamped with the outer wall of the automatic exhaust valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110018860.8A CN112744714A (en) | 2021-01-07 | 2021-01-07 | Shock-proof type platform for tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110018860.8A CN112744714A (en) | 2021-01-07 | 2021-01-07 | Shock-proof type platform for tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112744714A true CN112744714A (en) | 2021-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110018860.8A Pending CN112744714A (en) | 2021-01-07 | 2021-01-07 | Shock-proof type platform for tower crane |
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| CN (1) | CN112744714A (en) |
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