AU2021103893A4 - A protective device for crane - Google Patents
A protective device for crane Download PDFInfo
- Publication number
- AU2021103893A4 AU2021103893A4 AU2021103893A AU2021103893A AU2021103893A4 AU 2021103893 A4 AU2021103893 A4 AU 2021103893A4 AU 2021103893 A AU2021103893 A AU 2021103893A AU 2021103893 A AU2021103893 A AU 2021103893A AU 2021103893 A4 AU2021103893 A4 AU 2021103893A4
- Authority
- AU
- Australia
- Prior art keywords
- falling
- lifting seat
- support
- crane
- protective device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- B66C23/88—Safety gear
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
A protective device for crane, comprising a ladder column (1) and a lifting seat (4); there is a support
channel (15) on the said lifting seat (4), the said ladder column (1) is slidably arranged in the said
support channel (15), and the height of the said lifting seat (4) relative to the said ladder column (1)
can be adjusted by adjusting the height adjustment component; an anti-falling component is provided
on the other side of the said lifting seat (4), a number of anti-falling support slots (2) are evenly
distributed on the surface of the said ladder column (1) on the same side of the said anti-falling
component, a containing cavity (17) is opened on the other side of the said lifting seat (4), the said
anti-falling component comprises a rotating cylinder (16) rotationally arranged in the said containing
cavity (17), a first rectangular slider (21) is arranged in the said rotating cylinder (16 by the support of a
lateral spring (20), an anti-falling rod (19) is fixedly installed on the said first rectangular slider (21), the
other end of the said anti-falling rod (19) is fixedly provided with an anti-falling support block (5)
adapted to the said anti-falling support slots (2), the anti-falling support block (5) is an edge block
structure with an inclined surface; the anti-falling component is provided on the other side of the said
lifting seat (4).
-1/4
22
Fi 4
13
Figure 1
Description
-1/4
22
13 Fi 4
Figure 1
[0001] The present invention relates to a protective device for crane.
[0002] Crane refers to a multi-action hoisting machinery that vertically lifts and horizontally transports heavy objects within a certain range, also known as derrick, crab, freight elevator. The main features of tire crane are as follows: Its driving cab and lifting control cab are integrated into one; It is evolved from a crawler crane, of which the crawler track and walking support part of the walking mechanism are turned into a chassis with tires; It overcomes the defect that the caterpilar belt of crawler crane damages the road surface; It is transport machinery for handling heavy objects. The bridge crane is a lifting equipment that is horizontally framed over the workshop, warehouse and stockyard for lifting heavy objects, the bridge frame of which runs longitudinally along the tracks laid on both sides of the elevated track, which can make full use of the space under the bridge frame to lift heavy objects without being hindered by ground equipment. The tower crane ladder consists of two ladder columns and several ladder crossbars. The two ladder columns are placed vertically, the ladder crossbars are located between the two ladder columns and both of the two ends of the ladder crossbars are fixedly connected with the ladder columns. The tower crane with good protective performance is equipped with protective devices, the protective device uses No.1 elastic belt, No.2 elastic belt, female buckle and male buckle to fix the waistline at the user's waist. Although the device can be used for protection, users still need to climb the tower crane manually, which is easy to cause fatigue and is not conducive to better safety protection.
[0003] Any discussion of the prior art throughout the specification should in no way be considered as an admission that such prior art is widely known or forms part of common general knowledge in the field.
[0004] PROBLEMS TO BE SOLVED
[0005] It is an object of the present invention to overcome or ameliorate at least one of the disadvantages of the prior art, or to provide a useful alternative.
[0006] MEANS FOR SOLVING THE PROBLEM
[0007] A protective device for a crane, comprises a ladder column and a lifting seat;
[0008] There is a support channel on the said lifting seat, the said ladder column is slidably arranged in the said support channel, and the height of the said lifting seat relative to the said ladder column can be adjusted by adjusting the height adjustment component;
[0009] An anti-falling component is provided on the other side of the said lifting seat,
after adjusting the height of the said lifting seat relative to the said ladder column, it is supported and fixed by the anti-falling component to avoid the falling of the said lifting seat after adjusting the height;
[0010] A number of anti-falling support slots are evenly distributed on the surface of the said ladder column on the same side of the said anti-falling component, a containing cavity is opened on the other side of the said lifting seat, the said anti-falling component comprises a rotating cylinder rotationally arranged in the said containing cavity, a first rectangular slider is arranged in the said rotating cylinder by the support of a lateral spring, an anti-falling rod is fixedly installed on the said first rectangular slider, the other end of the said anti-falling rod is fixedly provided with an anti-falling support block adapted to the said anti-falling support slots, the anti-falling support block is an edge block structure with an inclined surface;
[0011] A limit component is also arranged on the said lifting seat on the same side of the said anti-falling component.
[0012] Further solution of the present invention is:
[0013] A driving cavity is opened on one side of the said lifting seat, the said height adjustment component comprises a forward and reverse servo motor fixedly arranged in the said driving cavity; a driving shaft is connected with the output shaft of the said forward and reverse servo motor, the said driving shaft extends into the said support channel, a drive gear is fixedly installed at the end of the said driving shaft which extends into the said support channel, the said height adjustment component also comprises a toothed plate which is fixedly arranged on the said ladder column and meshed with the said drive gear.
[0014] Further solution is:
[0015] The open end of the said driving cavity is detachably installed with a cover plate through mounting screw or screws.
[0016] Further solution is:
[0017] Vents are opened at both the top plate and the bottom plate of the said driving cavity, an induced draft fan is arranged on the top plate of the said driving cavity, a ventilator is arranged on the bottom plate of the said driving cavity.
[0018] Further solution is:
[0019] An operating handle is fixedly installed on the other end of the said rotating cylinder.
[0020] Further solution is:
[0021] The outer ring of the said rotating cylinder is evenly distributed with a number of limit slots, the said limiting component comprises a fixed cylinder fixedly arranged on the said lifting seat, and a second rectangular slider is arranged in the said fixed cylinder to be slidably supported by two sets of vertical support springs.
[0022] Further solution is:
[0023] A limit block adapted to the said limit slots is fixedly installed on the said second rectangular slider, a lifting rod is also fixedly installed on the said second rectangular slider, and a lifting handle is fixedly provided at the bottom end of the said lifting rod.
[0024] Compared with the prior art, the beneficial effects of the present invention are: In the present invention, the said rotating cylinder is driven to rotate by operating the said operating handle, so that the orientation of the said inclined surface on the said anti falling support block can be adjusted. When the said inclined surface of the said anti falling support block is adjusted upward, the said height adjustment component can be used to smoothly adjust the height position of the said lifting seat relative to the said ladder column. When the height of the said lifting seat is adjusted to the specified position, since the bottom surface of the said anti-falling support block is flat, the said anti-falling support block resting in the said anti-falling support slots can have a good supporting effect on the said lifting seat and avoid the accidental fall of the said lifting seat. By pulling the said lifting handle, the said second rectangular slider can move downward in the said fixed cylinder, at this time, the said limit block can be separated from the said limit slot, and then the operating handle drives the said rotating cylinder to rotate, and then the said inclined surface of the said anti-falling support block can be adjusted. After the said inclined surface of the said anti-fall support block is adjusted, releasing the said lifting handle, and the said limit block can be embedded in the said limit slot which is matched to the said limit block under the elastic support of the vertical support spring to achieve the effect of restricting the rotation of the said rotating cylinder, so as to further ensure the stability of the said anti-falling component.]
[0025] In order to explain the technical solution in the embodiment of the invention more clearly, the following paragraphs will briefly introduce the drawings used in the embodiments or the descriptions of the prior arts, obviously, the drawings in the following description are only some embodiments of the invention.
[0026] Fig.1 is the schematic diagram of the protective device for crane provided by the embodiment of the present invention.
[0027] Fig.2 is a schematic diagram of an enlarged structure of part A in Fig.1.
[0028] Fig. 3 is stereogram of the anti-falling component in the protective device for crane provided by the embodiment of the present invention.
[0029] Fig. 4 is stereogram of schematic diagram of the limit component in the protection device for crane provided by the embodiment of the present invention.
[0030] In the figures: 1. ladder column; 2. anti-falling support slot; 3. toothed plate; 4. Lifting seat; 5. Anti-falling support block; 6. Cover plate; 7. driving cavity; 8. Vent; 9. induced draft fan 10. Ventilator; 11. mounting screw; 12. forward and reverse servo motor; 13. driving shaft; 14. drive gear; 15. support channel; 16. rotating cylinder; 17. containing cavity; 18. limit slot; 19. anti-falling rod; 20. lateral support spring; 21. the first rectangular slider; 22. fixed cylinder; 23. limit block; 24. vertical support spring; 25. lifting rod; 26. the second rectangular slider; 27. lifting handle; 28. operating handle]
[0031]
[0032] Preferred embodiments of the invention will now be described with reference to the accompanying drawings and non-limiting examples.
[0033] [In order to make the technical problems to be solved by this invention, technical solutions and beneficial effects more clear, the following describes the present invention in further detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.
[0034] Embodiment 1:
[0035] As shown in Fig.1- Fig.4, in this embodiment provided by this invention, a protective device for crane, comprises a ladder column 1 and a lifting seat 4; There is a support channel 15 on the said lifting seat4, the said ladder column 1 is slidably arranged in the said support channel 15, and the height of the said lifting seat 4 relative to the said ladder column 1 can be adjusted by adjusting the height adjustment component; A driving cavity 7 is opened on one side of the said lifting seat 4, the open end of the said driving cavity 7 is detachably installed with a cover plate 6 through mounting screw 11 or screws, the said height adjustment component comprises a forward and reverse servo motor 12 fixedly arranged in the said driving cavity 7; a driving shaft 13 is connected with the output shaft of the said forward and reverse servo motor 12, the said driving shaft 13 extends into the said support channel 15, a drive gear 14 is fixedly installed at the end of the said driving shaft 13 which extends into the said support channel 15, the said height adjustment component also comprises a toothed plate 3 which is fixedly arranged on the said ladder column 1 and meshed with the said drive gear 14. Therefore, the embodiment of this present invention can use the said activated forward and reverse servo motor 12 to drive the said drive gear 14 to rotate, and according to the rotation direction of the said drive gear 14, the height position of the said lift base 4 relative to the said ladder column 1 can be adjusted.
[0036] Please continue to refer to Fig.1- Fig.4, in this embodiment provided by this invention, An anti-falling component is provided on the one side of the said lifting seat 4 , after adjusting the height of the said lifting seat 4 relative to the said ladder column 1, it is supported and fixed by the anti-falling component to avoid the falling of the said lifting seat 4 after adjusting the height.
[0037] Specifically, in this embodiment provided by this invention ,a number of anti falling support slots 2 are evenly distributed on the surface of the said ladder column 1 on the same side of the said anti-falling component, a containing cavity 17 is opened on the other side of the said lifting seat 4 , the said anti-falling component comprises a rotating cylinder 16 rotationally arranged in the said containing cavity 17, a first rectangular slider 21 is arranged in the said rotating cylinder 16 by the support of a lateral spring 20, an anti-falling rod 19 is fixedly installed on the said first rectangular slider 21, the other end of the said anti-falling rod 19 is fixedly provided with an anti-falling support block 5 adapted to the said anti-falling support slots 2, the anti-falling support block 5 is an edge block structure with an inclined surface.
[0038] Furthermore, in this embodiment provided by this invention, an operating handle 28 is fixedly installed on the other end of the said rotating cylinder 16. In the present invention, the said rotating cylinder 16 is driven to rotate by operating the said operating handle 28, so that the orientation of the said inclined surface on the said anti-falling support block 5 can be adjusted. When the said inclined surface of the said anti-falling support block 5 is adjusted upward, the said height adjustment component can be used to smoothly adjust the height position of the said lifting seat 4 relative to the said ladder column 1. When the height of the said lifting seat 4 is adjusted to the specified position, since the bottom surface of the said anti-falling support block 5 is flat, the said anti falling support block 5 resting in the said anti-falling support slot 2 can have a good supporting effect on the said lifting seat 4 and avoid the accidental fall of the said lifting seat 4.
[0039] Embodiment 2:
[0040] As shown in Fig.1- Fig.4, in this embodiment provided by this invention, a protective device for a crane, comprises a ladder column 1 and a lifting seat 4; There is a support channel 15 on the said lifting seat4, the said ladder column 1 is slidably arranged in the said support channel 15, and the height of the said lifting seat 4 relative to the said ladder column 1 can be adjusted by adjusting the height adjustment component; A driving cavity 7 is opened on one side of the said lifting seat 4, the open end of the said driving cavity 7 is detachably installed with a cover plate 6 through mounting screw 11 or screws, the said height adjustment component comprises a forward and reverse servo motor 12 fixedly arranged in the said driving cavity 7; a driving shaft 13 is connected with the output shaft of the said forward and reverse servo motor 12, the said driving shaft 13 extends into the said support channel 15, a drive gear 14 is fixedly installed at the end of the said driving shaft 13 which extends into the said support channel 15, the said height adjustment component also comprises a toothed plate 3 which is fixedly arranged on the said ladder column 1 and meshed with the said drive gear 14. Therefore, the embodiment of this present invention can use the said activated forward and reverse servo motor 12 to drive the said drive gear 14 to rotate, and according to the rotation direction of the said drive gear 14, the height position of the said lift base 4 relative to the said ladder column 1 can be adjusted.
[0041] Please continue to refer to Fig.1- Fig.4, in this embodiment provided by this invention, An anti-falling component is provided on the one side of the said lifting seat 4
, after adjusting the height of the said lifting seat 4 relative to the said ladder column 1,
it is supported and fixed by the anti-falling component to avoid the falling of the said lifting seat 4 after adjusting the height.
[0042] Specifically, in this embodiment provided by this invention, a number of anti falling support slots 2 are evenly distributed on the surface of the said ladder column 1 on the same side of the said anti-falling component, a containing cavity 17 is opened on the other side of the said lifting seat 4 , the said anti-falling component comprises a rotating cylinder 16 rotationally arranged in the said containing cavity 17, a first rectangular slider 21 is arranged in the said rotating cylinder 16 by the support of a lateral spring 20, an anti-falling rod 19 is fixedly installed on the said first rectangular slider 21, the other end of the said anti-falling rod 19 is fixedly provided with an anti-falling support block 5 adapted to the said anti-falling support slots 2, the anti-falling support block 5 is an edge block structure with an inclined surface.
[0043] Furthermore, in this embodiment provided by this invention, an operating handle 28 is fixedly installed on the other end of the said rotating cylinder 16. In the present invention, the said rotating cylinder 16 is driven to rotate by operating the said operating handle 28, so that the orientation of the said inclined surface on the said anti-falling support block 5 can be adjusted. When the said inclined surface of the said anti-falling support block 5 is adjusted upward, the said height adjustment component can be used to smoothly adjust the height position of the said lifting seat 4 relative to the said ladder column 1. When the height of the said lifting seat 4 is adjusted to the specified position, since the bottom surface of the said anti-falling support block 5 is flat, the said anti falling support block 5 resting in the said anti-falling support slot 2 can have a good supporting effect on the said lifting seat 4 and avoid the accidental fall of the said lifting seat 4.
[0044] Please continue to refer to Fig.1- Fig.4, in this embodiment provided by this invention, vents 8 are opened at both the top plate and the bottom plate of the said driving cavity 7, an induced draft fan 9 is arranged on the top plate of the said driving cavity 7, a ventilator 10 is arranged on the bottom plate of the said driving cavity 7, by setting the said induced draft fan 9 and the said ventilator 10, the flowing air flow can be formed in the said driving cavity 7, and a pair of running forward and reverse servo motors 12 can play the role of blowing and heat dissipation
[0045] Furthermore, in this embodiment provided by this invention, a limit component is also arranged on the said lifting seat 4 on the same side of the said anti-falling component.
[0046] Specifically, in this embodiment provided by this invention, the outer ring of the said limit slots 18 is evenly distributed with a number of limit slots 18, the said limiting component comprises a fixed cylinder 22 fixedly arranged on the said lifting seat 4, and a second rectangular slider 26 is arranged in the said fixed cylinder 22 to be slidably supported by two sets of vertical support springs 24. A limit block 23 adapted to the said limit slots 18 is fixedly installed on the said second rectangular slider 26, a lifting rod 25 is also fixedly installed on the said second rectangular slider 26, and a lifting handle 27 is fixedly provided at the bottom end of the said lifting rod 25. By pulling the said lifting handle 27, the said second rectangular slider 26 can move downward in the said fixed cylinder 22, at this time, the said limit block 23 can be separated from the said limit slots 18, and then the said operating handle 28 drives the said rotating cylinder 16 to rotate, and then the said inclined surface of the said anti-falling support block 5 can be adjusted. After the said inclined surface of the said anti-fall support block 5 is adjusted, releasing the said lifting handle 27, and the said limit block 23 can be embedded in the said limit slots 18 which is matched to the said limit block 23 under the elastic support of the vertical support spring 24 to achieve the effect of restricting the rotation of the said rotating cylinder 16, so as to further ensure the stability of the said anti-falling component.
[0047] In the description of the present invention, the terms "install", "connect" and" connection" shall be interpreted broadly unless otherwise clearly defined and limited,
for example, it can be fixed connection, detachable connection or integrated connection; It can be mechanical connection or electrical connection; It can be directly connected, or indirectly connected through intermediate media, or internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above mentioned terms in the present invention can be understood in specific situations.
[0048] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of this invention shall be included in the protection scope of this invention.]
[0049] Although the invention has been described with reference to specific examples, it will be appreciated by those skilled in the art that the invention may be embodied in many other forms, in keeping with the broad principles and the spirit of the invention described herein.
[0050] The present invention and the described preferred embodiments specifically include at least one feature that is industrial applicable.
Claims (7)
1. A protective device for crane, characterized in that, comprises a ladder column (1) and a lifting seat (4); There is a support channel (15) on the said lifting seat (4), the said ladder column (1) is slidably arranged in the said support channel (15), and the height of the said lifting seat (4) relative to the said ladder column (1) can be adjusted by adjusting the height adjustment component; An anti-falling component is provided on the other side of the said lifting seat (4), a number of anti-falling support slots (2) are evenly distributed on the surface of the said ladder column (1) on the same side of the said anti-falling component, a containing cavity (17) is opened on the other side of the said lifting seat (4) , the said anti-falling component comprises a rotating cylinder (16) rotationally arranged in the said containing cavity (17), a first rectangular slider (21) is arranged in the said rotating cylinder (16 by the support of a lateral spring (20), an anti-falling rod (19) is fixedly installed on the said first rectangular slider (21), the other end of the said anti-falling rod (19) is fixedly provided with an anti-falling support block (5) adapted to the said anti-falling support slots (2), the anti-falling support block (5) is an edge block structure with an inclined surface; An anti-falling component is provided on the other side of the said lifting seat
(4).
2. The protective device for crane of claim 1, characterized in that, a driving cavity (7) is opened on one side of the said lifting seat (4), the said height adjustment component comprises a forward and reverse servo motor (12) fixedly arranged in the said driving cavity (7); a driving shaft (13) is connected with the output shaft of the said forward and reverse servo motor (12), the said driving shaft (13) extends into the said support channel (15), a drive gear (14) is fixedly installed at the end of the said driving shaft (13) which extends into the said support channel (15), the said height adjustment component also comprises a toothed plate (3) which is fixedly arranged on the said ladder column (1) and meshed with the said drive gear (14).
3. The protective device for crane of claim 2, characterized in that, the open end of the said driving cavity (7) is detachably installed with a cover plate (6) through mounting screw or screws (11).
4. The protective device for crane of claim 3, characterized in that, vents (8) are opened at both the top plate and the bottom plate of the said driving cavity (7), an induced draft fan (9) is arranged on the top plate of the said driving cavity (7), a ventilator (10) is arranged on the bottom plate of the said driving cavity (7).
5. The protective device for crane of claim 4, characterized in that, an operating handle (28) is fixedly installed on the other end of the said rotating cylinder (16).
6. The protective device for crane of one of the claims 2-5, characterized in that, the outer ring of the said limit slots (18) is evenly distributed with a number of limit slots (18), the said limiting component comprises a fixed cylinder (22) fixedly arranged on the said lifting seat (4), and a second rectangular slider (2)6 is arranged in the said fixed cylinder (22) to be slidably supported by two sets of vertical support springs (24).
7. The protective device for crane of claims 6, characterized in that, a limit block (23) adapted to the said limit slots (18) isfixedly installed on the said second rectangular slider (26), a lifting rod (25) is also fixedly installed on the said second rectangular slider (26), and a lifting handle (27) is fixedly provided at the bottom end of the said lifting rod (25).
-1/4-
Figure 1
-2/4-
Figure 2
-3/4-
Figure 3
-4/4-
Figure 4
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010790061.8A CN111960305A (en) | 2020-08-07 | 2020-08-07 | Protection device of crane |
| CN202010790061.8 | 2020-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2021103893A4 true AU2021103893A4 (en) | 2021-08-26 |
Family
ID=73365214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021103893A Active AU2021103893A4 (en) | 2020-08-07 | 2021-07-06 | A protective device for crane |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111960305A (en) |
| AU (1) | AU2021103893A4 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115944316B (en) * | 2022-12-30 | 2023-10-20 | 北京朗视仪器股份有限公司 | Mandible supporting device for oral cavity CT |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0820492A (en) * | 1994-07-06 | 1996-01-23 | Hitachi Constr Mach Co Ltd | Crane boom |
| CN2339559Y (en) * | 1998-04-17 | 1999-09-22 | 丁振钰 | Safety jack |
| CN201372134Y (en) * | 2009-03-18 | 2009-12-30 | 深圳市中成汇实业有限公司 | Sheet medium anti-overturn device and anti-overturn card box |
| CN104912389A (en) * | 2015-04-22 | 2015-09-16 | 汤学年 | Rotary staggered-hole-unlocking key |
| CN108975182A (en) * | 2018-09-10 | 2018-12-11 | 广西利沛科技有限公司 | A kind of derrick crane pinion and-rack micromainframe climbs system and its protection system |
| CN110626940B (en) * | 2019-08-01 | 2020-08-11 | 中铁十六局集团有限公司 | Special multifunctional rotary adjusting lifting appliance for segmental beam |
| CN111302235A (en) * | 2020-03-25 | 2020-06-19 | 徐州国联建机有限公司 | Tower crane with good protection performance |
-
2020
- 2020-08-07 CN CN202010790061.8A patent/CN111960305A/en active Pending
-
2021
- 2021-07-06 AU AU2021103893A patent/AU2021103893A4/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111960305A (en) | 2020-11-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2021103893A4 (en) | A protective device for crane | |
| CN107089626B (en) | Mutual inductor maintenance vehicle | |
| CN206767536U (en) | A kind of novel elevating chassis | |
| CN107188080A (en) | A kind of lifting trolley | |
| CA2203204A1 (en) | A lift for disabled persons | |
| CN214930183U (en) | Crawler-type foam fire-fighting robot suitable for climbing | |
| CN212863976U (en) | Lifting device convenient to adjust for electromechanical device installation and maintenance | |
| CN210683840U (en) | Movable top lance device | |
| KR101355787B1 (en) | Installating apparatus for ship ventilation unit | |
| CN220485229U (en) | Lifting device with high safety | |
| CN110745667A (en) | Climbing mechanism of elevator | |
| CN115240446B (en) | Intelligent traffic regulation and control device and method based on traffic flow regulation | |
| CN219113990U (en) | Reversible valve maintenance support assembly | |
| CN219994809U (en) | Emergency command dispatching management platform | |
| CN214580148U (en) | Supporting frame structure for large-scale environmental protection equipment | |
| CN215439554U (en) | Building construction elevator | |
| CN215061031U (en) | Movable lifting placing table for computer | |
| CN220283239U (en) | Installation mechanism for elevator entrance | |
| CN220033885U (en) | Boiler strutting arrangement that boiler maintenance was used | |
| CN220637565U (en) | Unmanned aerial vehicle trouble maintenance workstation | |
| CN116513257B (en) | Railway car arrester for stabilizing underground coal mine transport vehicle | |
| CN1506122A (en) | Multifunctional high-story lifesaving fire engine | |
| CN218988522U (en) | Active traction device of elevator | |
| CN215652098U (en) | Medical flat car | |
| CN218056649U (en) | Conference room playing equipment console |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) |