CN210509019U - Combined safety ladder stand and pier column connecting and fixing device - Google Patents

Abstract

A connecting and fixing device for a combined safety ladder stand and a pier stud comprises a channel steel hoop I, a channel steel hoop II and a channel steel hoop III, wherein one ends of the channel steel hoop I and the channel steel hoop II are hinged through a door shaft, and the other ends of the channel steel hoop I and the channel steel hoop II are respectively provided with a connecting lug plate; connecting lug plates are respectively arranged at two ends of the channel steel hoop III; the connecting ear plate is provided with a fixing hole, and a nut is welded and fixed at the fixing hole of the connecting ear plate of the channel steel hoop I and the channel steel hoop II; connecting ear plates at two ends of the channel steel hoop III are respectively connected with the connecting ear plates on the channel steel hoop I and the channel steel hoop II through a disassembling screw; the outer sides of the channel steel anchor ear I and the channel steel anchor ear II, which are close to the ends of the connecting ear plates, are respectively fixed with a side socket ear plate, the side socket ear plate is provided with a socket hole, the middle of the outer side of the channel steel anchor ear III is fixed with a front socket ear plate, and the front socket ear plate is provided with two socket holes; a steel pipe which can be connected and fixed with the safety ladder stand is inserted in the socket hole through a fixed pin bearing. This device is easily dismouting, and the joint support is firm.

Description

Combined safety ladder stand and pier column connecting and fixing device

Technical Field

The utility model relates to a bridge construction equipment's technical field specifically is a combined safe cat ladder and pier's connection fixing device.

Background

With the continuous development of infrastructure in China, the safety ladder stand adopted in bridge engineering circular pier column, bent cap construction and the like basically replaces the traditional scaffold erecting mode, but the connection of the safety ladder stand and the pier column has no standard connecting piece, the pier column reserved part is generally connected or surrounded into a well shape by a steel pipe on site, the safety ladder stand has the defects of complex installation, poor stability, large operation risk when the steel pipe is removed, and serious threat to the life and property safety of constructors, and the reserved part needs to be processed in the later period, which wastes manpower and material resources. For this reason, people design the connecting device of the safety ladder and the pier stud. The publication also reports some means of attachment of safety ladders to piers, such as:

1. chinese patent: a combined safety ladder connecting and fixing device has the following application numbers: 201720819103.X, filing date: 2017.07.07, patentee: zhongjian four offices third building engineering limited company, address: 563003 Beijing Lou No. 57 Honghua Bao of Guizhou Zunyi city, inventor: plum brave, grandson flood, plum golden ditch and great ambition, abstract: the utility model discloses a fixing device is connected to combined safe cat ladder, including overlapping staple bolt, connection steel pipe and safe cat ladder on the pier stud, the both ends of staple bolt are provided with the otic placode, have seted up first through-hole and second through-hole on the otic placode respectively, fasten the staple bolt on the pier stud after the stay bolt passes the first through-hole on the staple bolt both ends, with staple bolt and L type connecting plate fixed connection after the bolt passes the third through-hole on second through-hole on the staple bolt and the L type connecting plate. The utility model can be connected with the pier stud well through the hoop, and the connection is firm and reliable, thereby ensuring the stability of the safety ladder; and simultaneously, the utility model discloses an each part is can dismantle the connection, and the ann tears the convenience open, can have enough to meet the need the use, and the size of staple bolt can be makeed according to the pier stud size moreover, and is very nimble.

2. Chinese patent: the utility model provides a fixing device of circular pier stud safety cat ladder interface channel, application number: 201720777398.9, filing date: 2017.06.29, patentee: yunnan construction a second construction limited company, address: 650203 suburb dam kunming city, Yunnan province, inventor: chendinghua, luoxing, chenqiang, huang 25035, zhou mao, wujie, xuming ear, abstract: the utility model discloses a fixing device of a circular pier stud safety ladder connecting channel, which comprises a safety ladder and a pier stud, wherein a semicircular fixing ring is annularly arranged on the outer wall of the upper part of the pier stud, a rubber belt matched with the fixing ring is arranged on the inner ring of the fixing ring, and the rubber belt is tightly attached and fixedly connected with the outer wall of the pier stud; the two ends of the fixing ring are respectively extended with a fixing connecting rod of a connected structure, the fixing connecting rods at the two ends are respectively connected with a supporting connecting rod arranged on the safety ladder stand through respective connecting pieces to penetrate through bolts, the middle part of the outer wall of the upper part of the pier stud is also provided with at least one supporting rod, one end of the supporting rod is connected with the pier stud, and the other end of the supporting rod is connected with a passing pedal at the top of the safety ladder stand. The utility model discloses but cyclic utilization, ann tear open simply, because the existence of rubber tape is unlikely to again to cause wearing and tearing to the pier stud, has also increased the frictional force of rubber with the pier stud when guaranteeing that the passageway is effectively fixed, effectual assurance construction operation personnel's safety.

3. Chinese patent: high pier stud construction pedestrian's cat ladder counterfort is fixed with strutting arrangement, application number: 201720943667.4, filing date: 2017.07.31, patentee: china-metallurgical group ltd, address: 430081 Qingshan area industrial road No. 3, Wuhan city, Hubei province, inventor: yangdzhi, Yang Doujiao, Xia Chun, Guo Zuo and Li Shao Xiang, abstract: the utility model provides a fixed strutting arrangement that uses of high pier stud construction pedestrian's cat ladder counterfort, include supporting baseplate, eyelidretractor, fast-assembling anchor clamps or fixture be connected with the built-in fitting, supporting baseplate package rubbing board body, round pin axle bed and round pin axle, be equipped with the bolt hole in the middle of the plate body, two round pin axle beds about the plate body both sides are provided with, all install the eyelidretractor through the round pin axle in the round pin axle bed, the eyelidretractor is including the nut sleeve pipe that is provided with positive and negative silk, and nut sleeve pipe middle part is provided with the handle hole, and nut sleeve pipe both ends are connected with the lead screw, are provided with the sleeve pipe of being connected with round pin. The utility model discloses strutting arrangement can install two eyelidretractors simultaneously, is connected with the safe cat ladder of people's bank of china, forms triangle-shaped's stable structure, and overall structure is simple, easily realizes installing fast, and the practicality is strong.

4. Chinese patent: circular high pier stud construction pedestrian ladder assembly type buttress fixing device and construction method, application number: 201710643154.6, filing date: 2017.07.31, Applicant: china-metallurgical group ltd, address: 430081 Qingshan area industrial road No. 3, Wuhan city, Hubei province, inventor: yanderzhi, quiet, summer spring, gouo boat, li xiao xiang, abstract: the invention discloses a circular high pier stud construction pedestrian ladder assembly type buttress fixing device and a construction method, wherein a conical nut is improved and is matched with a dismantling tool, and a cover body is arranged outside the conical nut and comprises a shrinkage cover capable of being dismantled integrally and a corrugated cover capable of being dismantled partially; the invention also designs an assembled supporting device for fixing the buttress, which is used for quickly connecting the conical nut and the stand column of the pedestrian ladder and is also designed with a connector of a supporting device extension rod pipe, which can be combined with a building steel pipe for use and is beneficial to the standardized management of the supporting device; the invention has high construction efficiency, strong adhesive force, small repairing wound surface and repeated use and the construction method.

Research shows that the connecting and fixing device used at present has the defects of inconvenient disassembly and assembly or unstable connection and support.

Disclosure of Invention

The utility model aims at providing a combined safe cat ladder is connected fixing device with pier stud aims at guaranteeing the stability of construction safe cat ladder, and the joint support is firm, effectively reduces the risk of construction operation, ensures the safety of construction operation, easily installs and demolishs simultaneously again.

In order to realize the purpose of the utility model, the technical scheme who takes is:

a connecting and fixing device for a combined type safety ladder stand and a pier stud comprises a channel steel hoop I, a channel steel hoop II and a channel steel hoop III, wherein one ends of the channel steel hoop I and the channel steel hoop II are hinged through a door shaft, and connecting lug plates are respectively arranged at the other ends of the channel steel hoop I and the channel steel hoop II; connecting lug plates are respectively arranged at two ends of the channel steel hoop III; the connecting ear plate is provided with a fixing hole, and a nut is welded and fixed at the fixing hole of the connecting ear plate of the channel steel hoop I and the channel steel hoop II; connecting ear plates at two ends of the channel steel hoop III are respectively connected with the connecting ear plates on the channel steel hoop I and the channel steel hoop II through a disassembling screw; the channel steel anchor ear III, the channel steel anchor ear I and the channel steel anchor ear II are connected through a dismounting screw to form an annular anchor ear which can be anchored on the pier stud; the outer sides of the channel steel hoop I and the channel steel hoop II, which are close to the ends of the connecting lug plates, are respectively fixed with a side socket lug plate, the side socket lug plate is provided with a socket hole, the middle of the outer side of the channel steel hoop III is fixed with a front socket lug plate, and the front socket lug plate is provided with two socket holes, one on the left and one on the right; and a steel pipe which can be fixedly connected with the safety ladder stand is inserted into the socket hole through a fixed pin bearing. The steel pipe passes through cross fastener and safe cat ladder inboard pole setting firm in connection, and the bell and spigot otic placode has all been welded in the flange board outside about the channel-section steel staple bolt, and the bell and spigot otic placode passes through the steel pipe to be connected with safe cat ladder and becomes stable triangle-shaped structure. The blanking sizes of the channel steel hoop I, the channel steel hoop II and the channel steel hoop III are the diameter d of the cylindrical pier, blanking is convenient to manufacture, and the material models used by the three channel steel hoops are all consistent and are connected on the same plane.

Preferably: the screw head of the disassembling screw is provided with a steel ring. The steel ring provides the impetus for using extracting tool, can let operating personnel use the instrument to demolish the dismantlement screw rod on safe cat ladder, makes channel-section steel staple bolt III and channel-section steel staple bolt I and II separation of channel-section steel staple bolt.

Preferably: the end department of the installation door axle head of channel-section steel staple bolt I and channel-section steel staple bolt II be provided with the hypotenuse, two hypotenuses form the V-arrangement mouth, the door-hinge installation is fixed in V-arrangement mouth department for channel-section steel staple bolt I and channel-section steel staple bolt II can rotate certain angle outward around the door-hinge. The door-hinge select for use the height to be close with the channel-section steel staple bolt height, V-arrangement mouth is seted up to door-hinge department channel-section steel staple bolt and is made things convenient for opening and shutting of channel-section steel staple bolt, but the good active nature of door-hinge easy to assemble and dismantlement.

Preferably: channel-section steel staple bolt I or channel-section steel staple bolt II on be fixed with rings, make things convenient for the crane to catch on rings and realize the installation and demolish.

This combined safe cat ladder and pier's connection fixing device's work progress does:

step one, a crane is adopted to lift the channel steel hoop and accessories thereof to the top end of the template to be dismantled.

And step two, manually installing the hoop at the position of about 50cm from the top end of the template on the constructed pier body according to the calculated installation position of the hoop, wherein the installation direction of the hoop is determined according to the position of the safety ladder. Annular staple bolt hoop is constituteed to channel-section steel staple bolt I, channel-section steel staple bolt II and channel-section steel staple bolt III on the pier stud, dismantles the screw rod and passes behind the fixed orifices of connecting the otic placode and the nut cooperation, and the tightening is dismantled the screw rod and can be cramped the staple bolt on the pier stud, from the pier top down installed the pier stud staple bolt in proper order.

And step three, sequentially installing the safety ladder stand from bottom to top according to the standard requirements, when the safety ladder stand is installed to the height of the hoop, buckling one end of the steel pipe with the fixed pin shaft into a socket hole of the socket lug plate by a constructor, firmly connecting the other free end of the steel pipe with the vertical rod on the inner side of the safety ladder stand by adopting a cross fastener, and sequentially installing four connecting steel pipes from left to right. And installing the residual attaching devices from bottom to top in sequence.

And step four, after the pier stud capping beam construction is finished, sequentially dismantling the safety crawling ladder according to the standard requirement, dismantling the cross fastener for connecting the steel pipe and the safety crawling ladder when dismantling the position to the anchor ear, and then manually removing the steel pipe.

Step five, the crane hooks the lifting ring, meanwhile, the inner side hoop manually hooks the socket lug plate hole by adopting a steel bar hook, a constructor loosens a connecting screw on the safety ladder by adopting a lengthening dismounting device, and the outer side hoops (the channel steel hoop I and the channel steel hoop II) are dragged in the direction far away from the pier stud by the crane to realize dismounting and are slowly lifted to the ground; and an inner hoop (a channel steel hoop III) is hooked to the safety ladder stand by a steel bar hook.

Compared with the prior art, the connecting and fixing device has prominent substantive characteristics and remarkable progress:

1. the utility model provides a connecting and fixing device of a safety ladder stand and a pier stud, which is made of section steel, the pier stud can be tightly encircled by the hoop after the screw is disassembled and tightened, side socket lug plates are welded on the outer sides of the upper flange plate and the lower flange plate of the channel steel hoop I and the channel steel hoop II which are close to the end of the connecting lug plate, socket holes are formed in the side socket lug plates, a front socket lug plate is welded in the middle of the outer sides of the upper flange plate and the lower flange plate of the channel steel hoop III, two socket holes are formed in the front socket lug plate, and the socket lug plates are connected with the safety ladder stand through steel pipes to form a stable triangular structure, namely, the left side socket ear plate is connected with the left inner side vertical rod of the safety ladder stand through a steel pipe, the left side hole of the front socket ear plate is also connected with the left inner side vertical rod of the safety ladder stand through a steel pipe, the right side socket ear plate is connected with the right inner side vertical rod of the safety ladder stand through a steel pipe, and the right side hole of the front socket ear plate is also connected with the right inner side vertical rod of the safety ladder stand through a steel pipe; the connection between the safety ladder and the pier stud is safer and more reliable, and a reserved part is not required to be arranged.

2. This connect fixing device installation to demolish more safe convenient, operating personnel carries out the installation work on pier stud template safety work platform, can accomplish the dismantlement work on safe cat ladder, has avoided the means of taking dangerous operation at present to demolish attachment means, has guaranteed operating personnel's the security of the lives and property conscientiously.

3. The connecting and fixing device can be repeatedly utilized, and a safe, economic and environment-friendly connecting and fixing device for the safe ladder stand and the pier is created.

Drawings

FIG. 1 is a schematic structural diagram of a combined safety ladder and pier column connecting and fixing device;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic view of the attachment of the knockout screw of FIG. 1;

FIG. 4 is a schematic view of the connection between the steel pipe and the hoop in FIG. 1;

FIG. 5 is a schematic view of the connection of the present attachment and securement device to a combination safety ladder;

the part names of the sequence numbers in the figure are:

1. channel-section steel staple bolt I, 2, rings, 3, the door-hinge, 4, channel-section steel staple bolt II, 5, side socket joint otic placode, 6, nut, 7, connect the otic placode, 8, dismantle the screw rod, 9, steel ring, 10, channel-section steel staple bolt III, 11, preceding socket joint otic placode, 12, pier stud, 13, steel pipe, 14, safe cat ladder, 15, fixed pin axle.

Detailed Description

In order to more clearly describe the connection and fixing device of the combined safety ladder stand and the pier, the technology is further described in detail by combining the attached drawings and the embodiment.

Example 1

A connecting and fixing device for a combined type safety ladder stand and a pier stud comprises a channel steel hoop I1, a channel steel hoop II 4 and a channel steel hoop III 10, wherein one ends of the channel steel hoop I1 and the channel steel hoop II 4 are hinged through a door shaft 3, and the other ends of the channel steel hoop I1 and the channel steel hoop II 4 are respectively provided with a connecting ear plate 7; the end department of the 3 ends of installation door-hinge of channel-section steel staple bolt I1 and channel-section steel staple bolt II 4 be provided with the hypotenuse, two hypotenuses form the V-arrangement mouth, door-hinge 3 installs and fixes in V-arrangement mouth department for channel-section steel staple bolt I1 and channel-section steel staple bolt II 4 can be around 3 outward certain angles of rotation of door-hinge. Door-hinge 3 choose for use the height to be close with the channel-section steel staple bolt height, 3 channel-section steel staple bolts of door-hinge department set up V-arrangement mouthful and make things convenient for opening and shutting of channel-section steel staple bolt, but the good active nature of door-hinge 3 easy to assemble and dismantlement. Connecting ear plates 7 are also respectively arranged at two ends of the channel steel hoop III 10; the connecting ear plate 7 is provided with a fixing hole, and a nut 6 is welded and fixed at the fixing hole of the connecting ear plate 7 of the channel steel hoop I1 and the channel steel hoop II 4; connecting ear plates 7 at two ends of the channel steel hoop III 10 are respectively connected with the connecting ear plates 7 on the channel steel hoop I1 and the channel steel hoop II 4 through a dismounting screw 8; the channel steel anchor ear III 10, the channel steel anchor ear I1 and the channel steel anchor ear II 4 are connected by the disassembling screw 8 to form an annular anchor ear which can be anchored on the pier column 12; the outer sides of the ends, close to the connecting lug plates 7, of the channel steel hoop I1 and the channel steel hoop II 4 are respectively fixed with side socket lug plates 5, each side socket lug plate 5 is provided with a socket hole, the middle of the outer side of the channel steel hoop III 10 is fixed with a front socket lug plate 11, and the front socket lug plate 11 is provided with two socket holes; and a steel pipe 13 which can be connected and fixed with the safety ladder 14 is inserted in the socket hole through a fixed pin shaft 15. Steel pipe 13 passes through cross fastener and safe cat ladder inboard pole setting firm in connection, and the socket joint otic placode has all been welded in the flange plate outside about the channel-section steel staple bolt, and the socket joint otic placode passes through the steel pipe to be connected with safe cat ladder and becomes stable triangle-shaped structure. The blanking sizes of the channel steel hoop I1, the channel steel hoop II 4 and the channel steel hoop III 10 are the diameter d of the cylindrical pier, blanking is convenient to manufacture, and the material models used by the three channel steel hoops are all consistent and are connected on the same plane.

Example 2

A connecting and fixing device for a combined type safety ladder stand and a pier stud comprises a channel steel hoop I1, a channel steel hoop II 4 and a channel steel hoop III 10, wherein one ends of the channel steel hoop I1 and the channel steel hoop II 4 are hinged through a door shaft 3, and the other ends of the channel steel hoop I1 and the channel steel hoop II 4 are respectively provided with a connecting ear plate 7; the end department of the 3 ends of installation door-hinge of channel-section steel staple bolt I1 and channel-section steel staple bolt II 4 be provided with the hypotenuse, two hypotenuses form the V-arrangement mouth, door-hinge 3 installs and fixes in V-arrangement mouth department for channel-section steel staple bolt I1 and channel-section steel staple bolt II 4 can be around 3 outward certain angles of rotation of door-hinge. Door-hinge 3 choose for use the height to be close with the channel-section steel staple bolt height, 3 channel-section steel staple bolts of door-hinge department set up V-arrangement mouthful and make things convenient for opening and shutting of channel-section steel staple bolt, but the good active nature of door-hinge 3 easy to assemble and dismantlement. Connecting ear plates 7 are also respectively arranged at two ends of the channel steel hoop III 10; the connecting ear plate 7 is provided with a fixing hole, and a nut 6 is welded and fixed at the fixing hole of the connecting ear plate 7 of the channel steel hoop I1 and the channel steel hoop II 4; connecting ear plates 7 at two ends of the channel steel hoop III 10 are respectively connected with the connecting ear plates 7 on the channel steel hoop I1 and the channel steel hoop II 4 through a dismounting screw 8; the channel steel anchor ear III 10, the channel steel anchor ear I1 and the channel steel anchor ear II 4 are connected by the disassembling screw 8 to form an annular anchor ear which can be anchored on the pier column 12; the screw head of the disassembling screw 8 is provided with a steel ring 9. The steel ring 9 provides the impetus for using extracting tool, can let operating personnel use the instrument to demolish dismantlement screw rod 8 on safe cat ladder, makes U-steel staple bolt III 10 and U-steel staple bolt I1 and II 4 separations of U-steel staple bolt. The outer sides of the ends, close to the connecting lug plates 7, of the channel steel hoop I1 and the channel steel hoop II 4 are respectively fixed with side socket lug plates 5, each side socket lug plate 5 is provided with a socket hole, the middle of the outer side of the channel steel hoop III 10 is fixed with a front socket lug plate 11, and the front socket lug plate 11 is provided with two socket holes; and a steel pipe 13 which can be connected and fixed with the safety ladder 14 is inserted in the socket hole through a fixed pin shaft 15. Steel pipe 13 passes through cross fastener and safe cat ladder inboard pole setting firm in connection, and the socket joint otic placode has all been welded in the flange plate outside about the channel-section steel staple bolt, and the socket joint otic placode passes through the steel pipe to be connected with safe cat ladder and becomes stable triangle-shaped structure. The blanking sizes of the channel steel hoop I1, the channel steel hoop II 4 and the channel steel hoop III 10 are the diameter d of the cylindrical pier, blanking is convenient to manufacture, and the material models used by the three channel steel hoops are all consistent and are connected on the same plane.

Example 3

A connecting and fixing device for a combined type safety ladder stand and a pier stud comprises a channel steel hoop I1, a channel steel hoop II 4 and a channel steel hoop III 10, wherein one ends of the channel steel hoop I1 and the channel steel hoop II 4 are hinged through a door shaft 3, and the other ends of the channel steel hoop I1 and the channel steel hoop II 4 are respectively provided with a connecting ear plate 7; the end department of the 3 ends of installation door-hinge of channel-section steel staple bolt I1 and channel-section steel staple bolt II 4 be provided with the hypotenuse, two hypotenuses form the V-arrangement mouth, door-hinge 3 installs and fixes in V-arrangement mouth department for channel-section steel staple bolt I1 and channel-section steel staple bolt II 4 can be around 3 outward certain angles of rotation of door-hinge. Door-hinge 3 choose for use the height to be close with the channel-section steel staple bolt height, 3 channel-section steel staple bolts of door-hinge department set up V-arrangement mouthful and make things convenient for opening and shutting of channel-section steel staple bolt, but the good active nature of door-hinge 3 easy to assemble and dismantlement. Channel-section steel staple bolt I1 or channel-section steel staple bolt II 4 on be fixed with rings 2, make things convenient for the crane to catch on rings and realize the installation and demolish. Connecting ear plates 7 are also respectively arranged at two ends of the channel steel hoop III 10; the connecting ear plate 7 is provided with a fixing hole, and a nut 6 is welded and fixed at the fixing hole of the connecting ear plate 7 of the channel steel hoop I1 and the channel steel hoop II 4; connecting ear plates 7 at two ends of the channel steel hoop III 10 are respectively connected with the connecting ear plates 7 on the channel steel hoop I1 and the channel steel hoop II 4 through a dismounting screw 8; the channel steel anchor ear III 10, the channel steel anchor ear I1 and the channel steel anchor ear II 4 are connected by the disassembling screw 8 to form an annular anchor ear which can be anchored on the pier column 12; the screw head of the disassembling screw 8 is provided with a steel ring 9. The steel ring 9 provides the impetus for using extracting tool, can let operating personnel use the instrument to demolish dismantlement screw rod 8 on safe cat ladder, makes U-steel staple bolt III 10 and U-steel staple bolt I1 and II 4 separations of U-steel staple bolt. The outer sides of the ends, close to the connecting lug plates 7, of the channel steel hoop I1 and the channel steel hoop II 4 are respectively fixed with side socket lug plates 5, each side socket lug plate 5 is provided with a socket hole, the middle of the outer side of the channel steel hoop III 10 is fixed with a front socket lug plate 11, and the front socket lug plate 11 is provided with two socket holes; and a steel pipe 13 which can be connected and fixed with the safety ladder 14 is inserted in the socket hole through a fixed pin shaft 15. Steel pipe 13 passes through cross fastener and safe cat ladder inboard pole setting firm in connection, and the socket joint otic placode has all been welded in the flange plate outside about the channel-section steel staple bolt, and the socket joint otic placode passes through the steel pipe to be connected with safe cat ladder and becomes stable triangle-shaped structure. The blanking sizes of the channel steel hoop I1, the channel steel hoop II 4 and the channel steel hoop III 10 are the diameter d of the cylindrical pier, blanking is convenient to manufacture, and the material models used by the three channel steel hoops are all consistent and are connected on the same plane.

The above description is not intended to limit the present application, and the present application is not limited to the above examples, and those skilled in the art should understand that they can make various changes, modifications, additions or substitutions within the spirit and scope of the present application.

Claims (4)

1. The utility model provides a combined safe cat ladder and pier column's connection fixing device which characterized in that: the steel door lock comprises a channel steel hoop I (1), a channel steel hoop II (4) and a channel steel hoop III (10), wherein one ends of the channel steel hoop I (1) and the channel steel hoop II (4) are hinged through a door shaft (3), and connecting lug plates (7) are respectively arranged at the other ends of the channel steel hoop I (1) and the channel steel hoop II (4); connecting lug plates (7) are respectively arranged at two ends of the U-steel hoop III (10); the connecting ear plate (7) is provided with a fixing hole, and a nut (6) is welded and fixed at the fixing hole of the connecting ear plate (7) of the channel steel hoop I (1) and the channel steel hoop II (4); connecting ear plates (7) at two ends of the channel steel hoop III (10) are respectively connected with the connecting ear plates (7) on the channel steel hoop I (1) and the channel steel hoop II (4) through a disassembling screw (8); a channel steel anchor ear III (10), a channel steel anchor ear I (1) and a channel steel anchor ear II (4) are connected by a disassembling screw rod (8) to form an annular anchor ear which can be anchored on a pier stud (12); side socket ear plates (5) are respectively fixed on the outer sides of the ends, close to the connecting ear plates (7), of the channel steel hoop I (1) and the channel steel hoop II (4), socket holes are formed in the side socket ear plates (5), a front socket ear plate (11) is fixed in the middle of the outer side of the channel steel hoop III (10), and two socket holes are formed in the front socket ear plate (11); and a steel pipe (13) which can be fixedly connected with the safety ladder (14) is inserted in the inserting hole through a fixed pin shaft (15).

2. The combined type safety ladder stand and pier column connecting and fixing device as claimed in claim 1, wherein: the screw head of the disassembling screw (8) is provided with a steel ring (9).

3. The combined type safety ladder stand and pier column connecting and fixing device as claimed in claim 1, wherein: the end department of installation door-hinge (3) end of channel-section steel staple bolt I (1) and channel-section steel staple bolt II (4) be provided with the hypotenuse, two hypotenuses form the V-arrangement mouth, door-hinge (3) installation is fixed in V-arrangement mouth department, channel-section steel staple bolt I (1) and channel-section steel staple bolt II (4) can rotate around door-hinge (3).

4. The combined type safety ladder stand and pier column connecting and fixing device as claimed in claim 1, wherein: and a hoisting ring (2) is fixed on the channel steel anchor ear I (1) or the channel steel anchor ear II (4).

Images