CN104192740A - Engineering machine and safety protection method and device for high-altitude operation - Google Patents
Engineering machine and safety protection method and device for high-altitude operation Download PDFInfo
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- CN104192740A CN104192740A CN201410364884.9A CN201410364884A CN104192740A CN 104192740 A CN104192740 A CN 104192740A CN 201410364884 A CN201410364884 A CN 201410364884A CN 104192740 A CN104192740 A CN 104192740A
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- screw rod
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- mounting structure
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Abstract
The invention discloses an engineering machine and a safety protection method and device for high-altitude operation. The safety protection method is characterized in that firstly, a mounting structure which is mounted on a boom frame is preprocessed, connecting parts and pin shafts, required by a locking assembly, are assembled, a mounting hole is formed in the mounting structure, and a pin shaft hole matched with the mounting hole through a pin shaft is formed in the connecting part; secondly, the mounting structure is fixed on the boom frame, the connecting parts are assembled at two end parts of a safety rope; and finally, the mounting hole of the mounting structure and the pin shaft hole of each connecting part are connected by the corresponding pin shaft; and after use, the pin shafts are disassembled so that the mounting structure and the connecting parts are disconnected. The method can achieve the effects of zero welding, detachability, expandability, strong universality and repeated use by adopting a simple retracting and expanding structure mode under a condition that a crane structural part is not damaged, and has the relatively high using flexibility and using safety.
Description
Technical field
The present invention relates to crane job safety method field, particularly a kind of construction machinery and equipment, for safety protecting method and the device of aloft work.
Background technology
Construction machinery industry ascend operation needs safety prevention measure at present, is attended operation personnel's safety, uses the safety protecting method of weld fixture apparatus more.
At present, the safety precaution of crane products ascend operation conventionally adopts fixedly safety precaution method of direct welded type, and what this protective device comprised arm both sides is welded and fixed support, sleeve pipe link, locating bush, safety line etc. everywhere.Every safety precaution steel wire rope two ends are all fixedly welded on the fixed support of arm both sides, and protection steel rope is first protected by sleeve pipe link, and centre is provided with locating bush and supports, to keep the horizontally tracting direction of safety rope.
When operating personal carries out ascend operation; the joint hasp using of seat belts will oneself be fixed on the safety precaution steel wire rope of arm both sides; in work progress, along with the activity of operating personal, drive joint to snap on safety rope and move freely, thereby play safety guard-safeguard effect.
This protective device is fixedly installed on the ad-hoc location of hoisting crane, irremovable, alerting ability is poor, make the construction operation region of operating personal be subject to significant limitation, and these welders are as carried out operation in a plurality of places, to weld a plurality of devices, affect the attractive in appearance and performance of product structure part body.Meanwhile, after aloft work construction, also will process these protective devices, can cause framing member surface damage like this, high-altitude working safety hidden danger is larger, time-consuming.
In addition, field practice finds that on crane products jib, ascend operation adopts fixation type safety means of defence, and because of the variation of product type, the needed safety rope length of each crane products is different, causes design complicated; Especially outside the medium-term and long-term exposure chamber of this protective device fixation type safety rope work progress, stand to be exposed to the sun, expose to wind and rain and be more easily damaged, be difficult for timely cleaning, reduced its service life, cause unnecessary waste.
Therefore, how to provide a kind of safety protecting method for hoisting crane aloft work and device, this device does not damage crane structure part, use flexibly, and be those skilled in that art's technical matterss urgently to be resolved hurrily.
Summary of the invention
Object of the present invention is for providing a kind of construction machinery and equipment, for safety protecting method and the device of aloft work, the method is not being damaged under the prerequisite of crane structure part, by simple contraction Tensioning structure form realize " zero welding, detachable, can tensioner, highly versatile, and repeated usage ".There is higher use alerting ability and safety in utilization.
For solving the problems of the technologies described above, the invention provides a kind of safety protecting method for aloft work,
S1, preparative treatment, for being installed on mounting structure and required attaching parts, the bearing pin of assembling latch assembly on jib, are processed with mounting hole on described mounting structure, are processed with the pin shaft hole coordinating by bearing pin with described mounting hole on described attaching parts;
S2, described mounting structure is fixed on described jib, and assembles described attaching parts in the both ends of safety rope;
When S3, use, by described bearing pin, connect the mounting hole of described mounting structure and the pin shaft hole of described attaching parts; Finish using, dismantle described bearing pin, remove the connection between described mounting structure and described attaching parts.
Preferably, in described step S1, go back preparative treatment for regulating the control apparatus of the use length of described safety device;
In step S2, also control apparatus is connected between described attaching parts and described safety rope;
After mounting structure described in step S3 is connected by described bearing pin with described attaching parts, then the length of adjusting described safety rope is to the suitable use length of working.
Preferably, described control apparatus is the threaded components with screw thread fit, and this threaded components can relatively shorten or extend along rope length direction under the effect of its matching thread; Described safety rope and described attaching parts are connected to the two ends of described threaded components.
Preferably, described threaded components comprises coaxially arranged and has the first screw rod, second screw rod of preset space length and a sleeve that is nested in described the first screw rod and described the second screw rod, described the first screw rod and described the second screw rod are provided with external thread part, and the relevant position of described sleeve is provided with the internal thread part coordinating with threaded portion described in two respectively; Described attaching parts is connected respectively described the first screw rod with described safety rope) and described the second screw rod.
Preferably, described threaded components also comprises U-shaped and the alignment pin that is arranged at respectively described the first screw rod and the second non-nested end of screw rod, in two armstands of described U-shaped, be provided with coaxial pin-and-hole, described alignment pin be positioned two described in pin-and-hole, described attaching parts and described safety rope are connected to described in corresponding side on the bearing pin between two armstands of U-shaped.
In addition, the present invention also provides a kind of safety device for aloft work, comprise safety rope and the latch assembly of being located at the end of described safety rope, the mounting structure of described latch assembly and construction machinery and equipment removably connects, described latch assembly comprises attaching parts and bearing pin, described safety rope connects an end of described attaching parts, and the other end of described attaching parts is provided with for the mounting structure with on construction machinery and equipment and coordinates the pin shaft hole of installing, and described bearing pin plugs in described pin shaft hole.
Preferably, also comprise that described control apparatus is located between described attaching parts and described safety rope for regulating the control apparatus of the use length of described safety device, the end of described safety rope connects described attaching parts by described rope length regulating device.
Preferably, described control apparatus is the threaded components with screw thread fit, and this threaded components can relatively shorten or extend along rope length direction under the effect of its matching thread; Described safety rope and described attaching parts are connected to the two ends of described threaded components.
Preferably, described threaded components comprises coaxially arranged and has the first screw rod, second screw rod of preset space length and a sleeve that is nested in described the first screw rod and described the second screw rod, described the first screw rod and described the second screw rod are provided with external thread part, and the relevant position of described sleeve is provided with the internal thread part coordinating with threaded portion described in two respectively; Described attaching parts is connected respectively described the first screw rod and described the second screw rod with described safety rope.
Preferably, described threaded components also comprises U-shaped and the alignment pin that is arranged at respectively described the first screw rod and the second non-nested end of screw rod, in two armstands of described U-shaped, be provided with coaxial pin-and-hole, described alignment pin be positioned two described in pin-and-hole, described attaching parts and described safety rope are connected to described in corresponding side on the bearing pin between two armstands of U-shaped.
Preferably, be also respectively equipped with the first nut and the second nut on the external thread part of described the first screw rod and described the second screw rod, described the first nut and described the second nut are placed in respectively the outer end of described sleeve.
Safety rope in the present invention is removably connected on hoisting crane by bearing pin, when operating personal aloft work, in advance safety device is connected to by bearing pin on the mounting structure of hoisting crane, under the effect of safety device, operating personal can carry out safe operation; When operating personal completes after aloft work, only need, by the connection dismounting hinge pin between safety device and hoisting crane, can complete safety device and disassemble from hoisting crane.
Be fixed on hoisting crane and compare with safety rope in prior art, in present embodiment, safety rope and hoisting crane removably connect, it is more flexible that safety device uses, and be conducive to do not damaging under the prerequisite of crane structure part, realizes fixing and then carry out aloft work.
In addition, the safety rope of this safety device, can dismantle flexibly according to operational requirements, outdoor without long term exposure in work progress, has avoided standing to be exposed to the sun, exposing to wind and rain, and easily cleaning in time, has improved its service life, saves cost.
In addition, the present invention also provides a kind of construction machinery and equipment, comprise jib and be located at the safety protecting method on described jib, described safety device is the safety device described in above-mentioned any one, on described boom device, be provided with mounting structure, on described mounting structure, be provided with mounting hole, the bearing pin of described safety device is located in the pin shaft hole and mounting hole of described attaching parts.
Preferably, described mounting structure is the hanger on described boom device, and the pin shaft hole of described attaching parts connects the hanger hole of described hanger by bearing pin.
Preferably, described construction machinery and equipment is hoisting crane.
Accompanying drawing explanation
Fig. 1 is for the structural representation of the safety device of aloft work in a kind of specific embodiment of the present invention;
Fig. 2 is the structural representation of crane arm support in a kind of specific embodiment of the present invention;
Fig. 3 is the A place partial enlarged drawing of jib shown in Fig. 2;
Fig. 4 is the B place partial enlarged drawing of jib shown in Fig. 2;
Fig. 5 is for the diagram of circuit of the safety protecting method of aloft work in a kind of specific embodiment of the present invention.
Wherein, in Fig. 1-4, the one-to-one relationship between component names and Reference numeral is as follows:
Safety rope 1, attaching parts 2, bearing pin 3, the first screw rod 41, the second screw rod 42, external thread part 4a, sleeve 5, U-shaped 6, alignment pin 7, the first nut 81, the second nut 82, jib 60, hanger 61.
The specific embodiment
Core of the present invention is for providing a kind of construction machinery and equipment, for safety protecting method and the device of aloft work, the method is not being damaged under the prerequisite of crane structure part, by simple contraction Tensioning structure form realize " zero welding, detachable, can tensioner; highly versatile; and repeated usage ", there is higher use alerting ability and safety in utilization.
Without loss of generality; with safety protecting method, the example that is applied as on crane arm support is introduced technical scheme and technique effect herein; it will be understood by those skilled in the art that safety protecting method provided in this article is applied in Other Engineering machinery also in protection domain herein.
In order to make those skilled in the art understand better technical scheme of the present invention, below in conjunction with device, method, the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1, Fig. 5, Fig. 1 is for the structural representation of the safety device of aloft work in a kind of specific embodiment of the present invention; Fig. 5 is for the diagram of circuit of the safety protecting method of aloft work in a kind of specific embodiment of the present invention.
The invention provides a kind of safety device for aloft work, comprise safety rope 1 and the latch assembly of being located at the end of safety rope 1, safety rope 1 can be steel rope, also can be for thering is the rope of the other materials that uses rigidity, material for rope can specifically arrange according to environment for use, at this, do not do concrete introduction, can be with reference to prior art, as long as can meet user demand.
The mounting structure of latch assembly and construction machinery and equipment removably connects, latch assembly comprises attaching parts 2 and bearing pin 3, safety rope 1 connects an end of attaching parts 2, the other end of attaching parts 2 is provided with for the mounting structure with on construction machinery and equipment and coordinates the pin shaft hole of installing, and bearing pin 3 plugs in pin shaft hole.
Attaching parts 2 can arrange flexibly, for example, can be U-shaped 6 or similar structures part.
Please refer to Fig. 5, on the basis of above safety device, the present invention also provides a kind of safety protecting method for aloft work, and concrete operation step is as follows:
S1, preparative treatment, for being installed on mounting structure and required attaching parts, the bearing pin of assembling latch assembly on jib, are processed with mounting hole on described mounting structure, are processed with the pin shaft hole coordinating by bearing pin with described mounting hole on described attaching parts;
S2, described mounting structure is fixed on described jib, and assembles described attaching parts in the both ends of safety rope;
When S3, use, by described bearing pin, connect the mounting hole of described mounting structure and the pin shaft hole of described attaching parts; Finish using, dismantle described bearing pin, remove the connection between described mounting structure and described attaching parts.
Safety rope 1 in the present invention is removably connected on hoisting crane by bearing pin 3, when operating personal aloft work, in advance safety device is connected to by bearing pin 3 on the mounting structure of hoisting crane, under the effect of safety device, operating personal can carry out safe operation; When operating personal completes after aloft work, only need, by 3 dismountings of the connection bearing pin between safety device and hoisting crane, can complete safety device and disassemble from hoisting crane.
Be fixed on hoisting crane and compare with safety rope in prior art 1, the method is not being damaged under the prerequisite of crane structure part, by simple contraction Tensioning structure form realize " zero welding, detachable, can tensioner, highly versatile, and repeated usage ".There is higher use alerting ability and safety in utilization.
In addition, in safety rope 1 work progress of this safety device, without outside exposure chamber, avoided standing to be exposed to the sun, exposing to wind and rain, easily cleaning in time, has improved its service life, saves cost.
A kind of preferred embodiment in, safety device can also comprise for regulating the control apparatus of the use length of safety device, control apparatus is located between attaching parts 2 and safety rope 1, and the end of safety rope 1 connects attaching parts 2 by rope length regulating device.
That is to say, in step S1, go back preparative treatment for regulating the control apparatus of the use length of described safety device; In step S2, also control apparatus is connected between described attaching parts and described safety rope; After mounting structure described in step S3 is connected by described bearing pin with described attaching parts, then the length of adjusting described safety rope is to the suitable use length of working.
This embodiment can regulate the use length of safety device to appropriate length according to the hoisting crane of different size or different environments for use, or tensioner safety rope 1, has further increased use alerting ability.
Concrete structure for safety device can adopt various ways, has below introduced a kind of structure of comparative optimization, refers to following description.
In a kind of preferred embodiment, control apparatus can be for having the threaded components of screw thread fit, and this threaded components can relatively shorten or extend along rope length direction under the effect of its matching thread; Safety rope 1 and attaching parts 2 are connected to the two ends of threaded components.
Screw thread fit can be realized the minor adjustments of length, can tensioner safety rope 1, guarantee the safety of using.
Particularly, threaded components can comprise coaxially arranged and have the first screw rod 41, second screw rod 42 of preset space length and a sleeve 5 that is nested in the first screw rod 41 and the second screw rod 42, the first screw rod 41 and the second screw rod 42 are provided with external thread part 4a, and the relevant position of sleeve 5 is provided with the internal thread part coordinating with two threaded portions respectively; Attaching parts 2 is connected respectively the first screw rod 41 and the second screw rod 42 with safety rope 1.
Distance in this embodiment between the first screw rod 41 and the second screw rod 42 can guarantee to use under safe prerequisite in which according to actual service condition setting, regulates surplus larger.
In the above-described embodiments, threaded components can further include U-shaped 6 and the alignment pin 7 that is arranged at respectively the first screw rod 41 and the second screw rod 42 non-nested ends, in two armstands of U-shaped 6, be provided with coaxial pin-and-hole, alignment pin 7 is positioned in two pin-and-holes, bearing pin 3 can be positioned in pin-and-hole by nut, and attaching parts 2 and safety rope 1 are connected on the bearing pin 3 between two armstands of U-shaped 6 of corresponding side.
A kind of preferred embodiment in, on the external thread part 4a of the first screw rod 41 and the second screw rod 42, be also respectively equipped with the outer end that the first nut 81 and the second nut 82, the first nuts 81 and the second nut 82 are placed in respectively sleeve 5; The first nut 81 and the second nut 82 play spacing effect to sleeve 5 to a certain extent.
On the basis of above-mentioned safety device, the present invention also provides a kind of construction machinery and equipment, comprise jib 60 and be located at the safety device on jib 60, safety device is the safety device described in above-mentioned arbitrary embodiment, on boom device, be provided with mounting structure, on mounting structure, be provided with mounting hole, the bearing pin 3 of safety device is located in the pin shaft hole and mounting hole of attaching parts 2.
A kind of preferred embodiment in, mounting structure is the hanger 61 on boom device, the pin shaft hole of attaching parts 2 connects the hanger hole of hangers 61 by bearing pin 3.Utilize existing hanger 61 on boom device can realize the installation of safety device, without independent mounting structure is set specially.
Above to a kind of construction machinery and equipment provided by the present invention, be described in detail for safety protecting method and the device of aloft work.Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of an above enforcement example is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall within the scope of protection of the present invention.
Claims (12)
1. for a safety protecting method for aloft work, it is characterized in that,
S1, preparative treatment, for being installed on mounting structure and required attaching parts, the bearing pin of assembling latch assembly on jib, are processed with mounting hole on described mounting structure, are processed with the pin shaft hole coordinating by bearing pin with described mounting hole on described attaching parts;
S2, described mounting structure is fixed on described jib, and assembles described attaching parts in the both ends of safety rope;
When S3, use, by described bearing pin, connect the mounting hole of described mounting structure and the pin shaft hole of described attaching parts; Finish using, dismantle described bearing pin, remove the connection between described mounting structure and described attaching parts.
2. safety protecting method as claimed in claim 1, is characterized in that, goes back preparative treatment for regulating the control apparatus of the use length of described safety device in described step S1;
In step S2, also control apparatus is connected between described attaching parts and described safety rope;
After mounting structure described in step S3 is connected by described bearing pin with described attaching parts, then the length of adjusting described safety rope is to the suitable use length of working.
3. safety protecting method as claimed in claim 2, is characterized in that, described control apparatus is the threaded components with screw thread fit, and this threaded components can relatively shorten or extend along rope length direction under the effect of its matching thread; Described safety rope (1) and described attaching parts (2) are connected to the two ends of described threaded components.
4. safety protecting method as claimed in claim 3, it is characterized in that, described threaded components comprises coaxially arranged and has the first screw rod (41), second screw rod (42) of preset space length and be nested in described the first screw rod (41) and the sleeve (5) of described the second screw rod (42), described the first screw rod (41) and described the second screw rod (42) are provided with external thread part (4a), and the relevant position of described sleeve (5) is provided with the internal thread part coordinating with threaded portion described in two respectively; Described attaching parts (2) is connected respectively described the first screw rod (41) and described the second screw rod (42) with described safety rope (1).
5. safety protecting method as claimed in claim 4, it is characterized in that, described threaded components also comprises U-shaped and the alignment pin (7) that is arranged at respectively described the first screw rod and the second non-nested end of screw rod, in two armstands of described U-shaped, be provided with coaxial pin-and-hole, described alignment pin (7) be positioned two described in pin-and-hole, described attaching parts (2) and described safety rope (1) are connected to described in corresponding side on the bearing pin (3) between two armstands of U-shaped.
6. the safety device for aloft work, it is characterized in that, comprise safety rope (1) and be located at the latch assembly of the end of described safety rope (1), the mounting structure of described latch assembly and construction machinery and equipment removably connects, described latch assembly comprises attaching parts (2) and bearing pin (3), described safety rope (1) connects an end of described attaching parts (2), the other end of described attaching parts (2) is provided with for the mounting structure with on construction machinery and equipment and coordinates the pin shaft hole of installing, and described bearing pin (3) plugs in described pin shaft hole.
7. safety device as claimed in claim 6, it is characterized in that, also comprise for regulating the control apparatus of the use length of described safety device, described control apparatus is located between described attaching parts (2) and described safety rope (1), and the end of described safety rope (1) connects described attaching parts (2) by described rope length regulating device.
8. safety device as claimed in claim 7, is characterized in that, described control apparatus is the threaded components with screw thread fit, and this threaded components can relatively shorten or extend along rope length direction under the effect of its matching thread; Described safety rope (1) and described attaching parts (2) are connected to the two ends of described threaded components.
9. safety device as claimed in claim 8, it is characterized in that, described threaded components comprises coaxially arranged and has the first screw rod (41), second screw rod (42) of preset space length and be nested in described the first screw rod (41) and the sleeve (5) of described the second screw rod (42), described the first screw rod (41) and described the second screw rod (42) are provided with external thread part (4a), and the relevant position of described sleeve (5) is provided with the internal thread part coordinating with threaded portion described in two respectively; Described attaching parts (2) is connected respectively described the first screw rod (41) and described the second screw rod (42) with described safety rope (1).
10. safety device as claimed in claim 9, it is characterized in that, described threaded components also comprises U-shaped and the alignment pin (7) that is arranged at respectively described the first screw rod and the second non-nested end of screw rod, in two armstands of described U-shaped, be provided with coaxial pin-and-hole, described alignment pin (7) be positioned two described in pin-and-hole, described attaching parts (2) and described safety rope (1) are connected to described in corresponding side on the bearing pin (3) between two armstands of U-shaped.
11. safety devices as claimed in claim 9, it is characterized in that, on the external thread part (4a) of described the first screw rod and described the second screw rod, be also respectively equipped with the first nut and the second nut, described the first nut and described the second nut are placed in respectively the outer end of described sleeve (5).
12. 1 kinds of construction machinery and equipments, comprise jib and be located at the safety device on described jib, it is characterized in that, described safety protecting method is the safety device described in claim 6 to 11 any one, on described boom device, be provided with mounting structure, on described mounting structure, be provided with mounting hole, the bearing pin of described safety device (3) is located in the pin shaft hole and mounting hole of described attaching parts (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410364884.9A CN104192740B (en) | 2014-07-28 | 2014-07-28 | Engineering machinery, for the safety protecting method of work high above the ground and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410364884.9A CN104192740B (en) | 2014-07-28 | 2014-07-28 | Engineering machinery, for the safety protecting method of work high above the ground and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104192740A true CN104192740A (en) | 2014-12-10 |
| CN104192740B CN104192740B (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410364884.9A Active CN104192740B (en) | 2014-07-28 | 2014-07-28 | Engineering machinery, for the safety protecting method of work high above the ground and device |
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| CN (1) | CN104192740B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848617A (en) * | 2019-03-18 | 2019-06-07 | 无锡华光锅炉股份有限公司 | A kind of drum welding equipment safety device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0075055A1 (en) * | 1981-09-23 | 1983-03-30 | Perez de Ovanos Oyago, Francisco Jose | Improved safety harness restraining fixture |
| CN201988079U (en) * | 2011-03-01 | 2011-09-28 | 长沙中联重工科技发展股份有限公司 | Safety belt-fixing structure on crane boom and crane with same |
| EP2402282A1 (en) * | 2010-06-29 | 2012-01-04 | Liebherr-Werk Nenzing GmbH | Safety device, boom with safety device and construction machine |
| CN202936125U (en) * | 2012-11-16 | 2013-05-15 | 徐州重型机械有限公司 | Boom frame and steel wire rope protection device thereof |
| CN204038927U (en) * | 2014-07-28 | 2014-12-24 | 徐州重型机械有限公司 | Construction machinery and equipment and the safety device for aloft work thereof |
-
2014
- 2014-07-28 CN CN201410364884.9A patent/CN104192740B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0075055A1 (en) * | 1981-09-23 | 1983-03-30 | Perez de Ovanos Oyago, Francisco Jose | Improved safety harness restraining fixture |
| EP2402282A1 (en) * | 2010-06-29 | 2012-01-04 | Liebherr-Werk Nenzing GmbH | Safety device, boom with safety device and construction machine |
| CN201988079U (en) * | 2011-03-01 | 2011-09-28 | 长沙中联重工科技发展股份有限公司 | Safety belt-fixing structure on crane boom and crane with same |
| CN202936125U (en) * | 2012-11-16 | 2013-05-15 | 徐州重型机械有限公司 | Boom frame and steel wire rope protection device thereof |
| CN204038927U (en) * | 2014-07-28 | 2014-12-24 | 徐州重型机械有限公司 | Construction machinery and equipment and the safety device for aloft work thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848617A (en) * | 2019-03-18 | 2019-06-07 | 无锡华光锅炉股份有限公司 | A kind of drum welding equipment safety device |
| CN109848617B (en) * | 2019-03-18 | 2023-12-01 | 无锡华光环保能源集团股份有限公司 | Safety protection device for steam drum welding |
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|---|---|
| CN104192740B (en) | 2016-12-07 |
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