CN217867853U - Tower crane with labor-saving climbing function and high safety - Google Patents

Abstract

The utility model belongs to the technical field of the tower crane, especially, for a laborsaving and high tower crane of security of climbing, including the body of the tower, the body of the tower comprises the extension frame at a plurality of body of the tower standard festival and body of the tower standard festival top, the inboard of body of the tower is equipped with the cat ladder, the inboard of body of the tower still is equipped with fixed cross beam, fixed cross beam's front side is equipped with prevents weighing down spacing, prevent weighing down the equal fixed mounting of inside wall around spacing and have the guide rail, the guide rail with prevent weighing down laborsaving dual-purpose auxiliary device roll connection, prevent weighing down laborsaving dual-purpose auxiliary device and include the weight box, the bottom of weight box is equipped with automatic anti-falling device, it has a plurality of jacks of preventing weighing down all to link up on the left and right sides curb plate to prevent weighing down spacing, the top of first weight box is connected with first steel cable through first hoist engine, the end and the safety belt of first steel cable are connected, the workman can be saved greatly and climb the physical power that consumes to upwards climbing, and very big promotion has climbed security when the workman climbed crane.

Description

Tower crane with labor-saving climbing function and high safety

Technical Field

The utility model belongs to the technical field of the tower crane, concretely relates to laborsaving and high tower crane of security of climbing.

Background

Tower cranes, also called tower cranes, are known as tower cranes and originate in western europe. And the movable arm is arranged on the rotary crane at the upper part of the high-rise tower body. The working space is large, and the device is mainly used for vertical and horizontal conveying of materials and installation of building components in building construction. The device consists of a metal structure, a working mechanism and an electrical system. The metal structure comprises a tower body, a movable arm, a base and the like. The working mechanism has four parts of lifting, amplitude variation, rotation and walking. Electric system includes motor, controller, switch board, interconnecting link, signal and lighting device etc. because the tower crane height is higher, and is difficult to install automatic lift and carries the workman, and the workman wants to the driver's cabin at tower crane top, often need use the cat ladder to carry out long distance climbing, climbs the top of tower crane, because the distance is longer, and is great to consumeing of workman's physical power, and because safeguard measure is comparatively crude, has not little potential safety hazard.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model aims to: the utility model provides a climbing laborsaving and high tower crane of security can save the workman greatly and upwards climb the physical power that consumes to can prevent falling the effect, very big promotion the security when the workman scrambles the tower crane.

In order to achieve the above purpose, the utility model provides the following technical scheme: the utility model provides a tower crane that climbing is laborsaving and security is high, includes the body of the tower, the body of the tower comprises the extension frame at a plurality of body of the tower standard festival and body of the tower standard festival top, the inboard of body of the tower is equipped with the cat ladder, the inboard of body of the tower still is equipped with fixed cross beam, fixed cross beam's front side is equipped with prevents weighing down spacing, prevent weighing down the equal fixed mounting of inside wall around spacing, the guide rail with prevent weighing down laborsaving dual-purpose auxiliary device roll connection, prevent weighing down laborsaving dual-purpose auxiliary device and include the weight box, be equipped with a plurality of fixed plates in the inner chamber of weight box, every the below of fixed plate all is equipped with a balancing weight, the bottom of weight box is equipped with automatic anti-falling device, it has a plurality of jacks to prevent weighing down all to link up on the left and right sides curb plate of anti-falling spacing, the guide pulley mounting bracket is all installed to the left and right sides of weight box, install the guide pulley mounting bracket on the guide pulley mounting bracket, roll connection between guide pulley and the guide rail, the top fixedly connected with first winch, first winch and first winch fixed connection, first steel cable and second winch pulley block are equipped with the steel cable control cable ware, the most the first winch control cable of the side of the first body of the control.

The utility model has the advantages that: when a worker climbs upwards by using the ladder stand, the safety belt is fixed between the waist, the second winch can be controlled to unwind by the first controller, the second steel cable is released, the weight box is placed, and under the action of gravity of the weight box, the pulling of the first steel cable can be controlled by the first controller, so that the pulling force can be provided for the worker to climb upwards, the physical force consumed by the worker to climb upwards can be greatly saved, in the climbing process of the worker, if accidents such as stepping off and falling occur, the worker can timely stop falling by the aid of the anti-falling labor-saving dual-purpose auxiliary device, the worker can be effectively prevented from falling to the ground, under the action of gravity of the weight box, the falling speed of the worker can be greatly reduced, enough reaction time can be provided for the worker, the worker can emergently control the operation of the motor in the automatic anti-falling device through the first controller, the motor drives the gear to rotate, the first rack and the second rack are driven by the gear to move to jacks on the limiting frame along guide blocks and guide grooves on the left side and right side of the automatic anti-falling device, so that the worker can continuously grab the falling rack by the anti-falling rack, and the anti-falling safety box, thereby the anti-falling worker can be greatly lifted by the anti-falling rack.

For convenient installation and the change of balancing weight:

as a further improvement of the above technical solution: the pin holes penetrate through the top surface and the bottom surface of the balancing weight and the top surface and the bottom surface of the fixing plate, and the balancing weight and the fixing plate are connected and fixed through the fixing pins inserted into the pin holes.

The beneficial effect of this improvement does: insert the pinhole through the fixed pin and can fix between balancing weight and the fixed plate, extract the fixed pin and can take out the balancing weight, easy to assemble and change the balancing weight.

In order to improve the safety:

as a further improvement of the above technical solution: the steel cable clamping fixing seat is installed at the top of the weight box, two left and right supporting plates are installed at the top of the steel cable clamping fixing seat, a hydraulic cylinder is fixedly installed on one side face of each supporting plate, and a piston rod of each hydraulic cylinder penetrates through the supporting plates and is fixed with the clamping plates.

The beneficial effect of this improvement does: after first steel cable regulation finishes, the control pneumatic cylinder promotes splint and is the motion in opposite directions, carries out the centre gripping to first steel cable fixed, plays the reinforcing effect, avoids first winch to break down and leads to unable fixed first steel cable to cause the dangerous condition.

To facilitate belt raising or lowering for use by additional personnel and to provide traction for the weight box:

as a further improvement of the above technical solution: and a second winch is installed at the bottom of the extension frame and connected with a second steel cable, and the tail end of the second steel cable is connected with a steel cable connecting ring at the top of the weight box.

The beneficial effect of this improvement does: in the use of tower crane, when extra personnel such as security personnel also need go up the tower crane top or get off from the tower crane top, all can control the operation of second hoist engine through the second controller, drive the safety belt and rise or descend, make things convenient for other personnel to use, and the second hoist engine can drive the weight box and rise and descend, provide for the weight box and pull, avoid it to fall when not using to carry out the helping hand for the workman when using.

In order to prevent workers who accidentally fall down from falling:

as a further improvement of the above technical solution: install the motor mount in automatic anti-falling device's the inner chamber, the spiro union has the motor on the motor mount, the output shaft and the gear connection of motor, gear and first rack and second rack meshing, the homogeneous shaping in both sides has the conducting bar around first rack and the second rack, automatic anti-falling device's internally mounted has the guide block, all run through the guide slot between the left and right sides side of guide block and automatic anti-falling device, guide slot and first rack and second rack and conducting bar sliding connection.

The beneficial effect of this improvement does: when accidents such as stepping on the air and falling occur, a worker can emergently control the operation of a motor in the automatic anti-falling device through the first controller, the motor drives the gear to rotate, the gear is utilized to drive the first rack and the second rack to move towards the anti-falling jacks on the anti-falling limiting frame respectively along the guide blocks and the guide grooves on the left side and the right side of the automatic anti-falling device, so that the first rack and the second rack can be inserted into the anti-falling jacks, the weight box is prevented from continuously moving upwards under the driving of the gravity of the worker falling, the weight box is fixed, the falling of the worker is stopped, the worker can grasp the ladder stand again, and the safety of the worker in climbing the tower crane is greatly improved.

In order to protect the counterweight inside the weight box:

as a further improvement of the above technical solution: and the front side of the weight box is provided with a box door.

The beneficial effect of this improvement does: the box door can be used for protecting the counterweight block inside the counterweight box, and the effects of shielding, falling prevention and theft prevention are achieved.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

Fig. 1 is a schematic view of a left front axial measurement structure of the present invention;

fig. 2 is a left side view structure diagram of the present invention;

FIG. 3 is a sectional view of the present invention;

fig. 4 is a schematic view of the partial bottom structure of the present invention;

FIG. 5 is an enlarged schematic view of part A of the present invention;

FIG. 6 is a rear sectional view of the automatic anti-falling device of the present invention;

FIG. 7 is a left side sectional view of a part of the present invention;

FIG. 8 is a schematic view of a partial front sectional structure of the present invention;

FIG. 9 is an enlarged view of the part B of the present invention;

FIG. 10 is an enlarged schematic view of the part C of the present invention;

in the figure: 1. a tower body standard section; 2. an extension frame; 3. climbing a ladder; 4. fixing the cross beam; 5. an anti-falling limiting frame; 6. a guide rail; 7. a weight box; 8. a fixing plate; 9. a balancing weight; 10. an automatic fall preventing device; 11. an anti-falling jack; 12. a guide wheel mounting frame; 13. a guide wheel; 14. a first winch; 15. a first wire rope; 16. a first pulley block; 17. a second pulley block; 18. a safety belt; 19. a first controller; 20. a second controller; 21. a steel cable clamping fixing seat; 22. a support plate; 23. a hydraulic cylinder; 24. a splint; 25. a second hoist; 26. a second wire rope; 27. a motor fixing frame; 28. a motor; 29. a gear; 30. a first rack; 31. a second rack; 32. conducting bars; 33. a guide block; 34. a guide groove; 35. and (4) a box door.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

Example 1:

as shown in fig. 1, 2, 3, 4, 6, 7, 8 and 10, the tower crane with labor saving and high safety comprises a tower body, wherein the tower body consists of a plurality of tower body standard sections 1 and an extension frame 2 at the top of the tower body standard sections 1, a ladder stand 3 is arranged on the inner side of the tower body, a fixed cross beam 4 is further arranged on the inner side of the tower body, an anti-falling limiting frame 5 is arranged on the front side of the fixed cross beam 4, guide rails 6 are fixedly arranged on the front inner side wall and the rear inner side wall of the anti-falling limiting frame 5, the guide rails 6 are in rolling connection with an anti-falling and labor saving dual-purpose auxiliary device, the anti-falling and labor saving dual-purpose auxiliary device comprises a weight box 7, a plurality of fixed plates 8 are arranged in the inner cavity of the weight box 7, a weight block 9 is arranged below each fixed plate 8, an automatic anti-falling device 10 is arranged at the bottom of the weight box 7, all link up on the left and right sides curb plate of preventing weighing down spacing 5 and have a plurality of jacks 11 of preventing weighing down, guide wheel mounting bracket 12 is all installed to the left and right sides of weight box 7, install guide wheel 13 on the guide wheel mounting bracket 12, roll connection between guide wheel 13 and the guide rail 6, the first hoist engine 14 of top fixedly connected with of weight box 7, first hoist engine 14 and first wire rope 15 fixed connection, first assembly pulley 16 and second assembly pulley 17 are installed to the bottom of extension frame 2, first assembly pulley 16 and second assembly pulley 17 are walked around to first wire rope 15, the end and the safety belt 18 of first wire rope 15 are connected, install first controller 19 on the safety belt 18, the below of body of the tower standard festival 1 and a section side of the top all are equipped with second controller 20.

Example 2:

as shown in figure 3, as a further optimization of the above embodiment, the tower crane with labor saving and high safety in climbing comprises a tower body, wherein the tower body is composed of a plurality of tower body standard sections 1 and an extension frame 2 at the top of the tower body standard sections 1, a ladder stand 3 is arranged on the inner side of the tower body, a fixed cross beam 4 is further arranged on the inner side of the tower body, a falling-preventing limiting frame 5 is arranged on the front side of the fixed cross beam 4, guide rails 6 are fixedly arranged on the front inner side wall and the rear inner side wall of the falling-preventing limiting frame 5, the guide rails 6 are in rolling connection with a falling-preventing labor-saving dual-purpose auxiliary device, the falling-preventing labor-saving dual-purpose auxiliary device comprises a weight box 7, a plurality of fixing plates 8 are arranged in an inner cavity of the weight box 7, a weight block 9 is arranged below each fixing plate 8, and an automatic falling-preventing device 10 is arranged at the bottom of the weight box 7, prevent weighing down all to link up on the left and right sides curb plate of spacing 5 and have a plurality of jacks 11 of preventing weighing down, guide pulley mounting bracket 12 is all installed to the left and right sides of weight box 7, install guide pulley 13 on the guide pulley mounting bracket 12, roll connection between guide pulley 13 and the guide rail 6, the first hoist engine 14 of top fixedly connected with of weight box 7, first hoist engine 14 and 15 fixed connection of first wire rope, first assembly pulley 16 and second assembly pulley 17 are installed to the bottom of extension frame 2, first assembly pulley 16 and second assembly pulley 17 have been walked around to first wire rope 15, the end and the safety belt 18 of first wire rope 15 are connected, install first controller 19 on the safety belt 18, the bottom of body of the tower standard festival 1 and a lesson side of the top all are equipped with second controller 20. Pinholes are penetrated between the top surface and the bottom surface of the balancing weight 9 and between the top surface and the bottom surface of the fixing plate 8, and the balancing weight 9 and the fixing plate 8 are connected and fixed by inserting fixing pins into the pinholes.

Example 3:

as shown in figure 2, as further optimization of the above embodiment, the tower crane with labor saving climbing and high safety comprises a tower body, wherein the tower body consists of a plurality of tower body standard sections 1 and an extension frame 2 at the top of the tower body standard sections 1, a ladder stand 3 is arranged on the inner side of the tower body, a fixed cross beam 4 is further arranged on the inner side of the tower body, an anti-falling limiting frame 5 is arranged on the front side of the fixed cross beam 4, guide rails 6 are fixedly arranged on the front inner side wall and the rear inner side wall of the anti-falling limiting frame 5, the guide rails 6 are in rolling connection with an anti-falling labor-saving dual-purpose auxiliary device, the anti-falling labor-saving dual-purpose auxiliary device comprises a weight box 7, a plurality of fixed plates 8 are arranged in an inner cavity of the weight box 7, a weight 9 is arranged below each fixed plate 8, an automatic anti-falling device 10 is arranged at the bottom of the weight box 7, prevent weighing down all to link up on the left and right sides curb plate of spacing 5 and have a plurality of jacks 11 of preventing weighing down, guide pulley mounting bracket 12 is all installed to the left and right sides of weight box 7, install guide pulley 13 on the guide pulley mounting bracket 12, roll connection between guide pulley 13 and the guide rail 6, the first hoist engine 14 of top fixedly connected with of weight box 7, first hoist engine 14 and 15 fixed connection of first wire rope, first assembly pulley 16 and second assembly pulley 17 are installed to the bottom of extension frame 2, first assembly pulley 16 and second assembly pulley 17 have been walked around to first wire rope 15, the end and the safety belt 18 of first wire rope 15 are connected, install first controller 19 on the safety belt 18, the bottom of body of the tower standard festival 1 and a lesson side of the top all are equipped with second controller 20. Wire rope centre gripping fixing base 21 is installed at the top of weight box 7, two backup pads 22 about, two are installed at the top of wire rope centre gripping fixing base 21 about the equal fixed mounting in one side of backup pad 22 has pneumatic cylinder 23, it is fixed with splint 24 that the piston rod of pneumatic cylinder 23 runs through backup pad 22.

Example 4:

as shown in fig. 4, fig. 5 and fig. 9, as further optimization of the above embodiment, a tower crane with labor saving and high safety for climbing comprises a tower body, the tower body is composed of a plurality of tower body standard joints 1 and an extension frame 2 at the top of the tower body standard joint 1, a ladder stand 3 is arranged on the inner side of the tower body, a fixed cross beam 4 is further arranged on the inner side of the tower body, an anti-falling limiting frame 5 is arranged on the front side of the fixed cross beam 4, guide rails 6 are fixedly arranged on the front inner side wall and the rear inner side wall of the anti-falling limiting frame 5, the guide rails 6 are in rolling connection with an anti-falling labor-saving dual-purpose auxiliary device, the anti-falling labor-saving dual-purpose auxiliary device comprises a weight box 7, a plurality of fixed plates 8 are arranged in an inner cavity of the weight box 7, a counter weight 9 is arranged below each fixed plate 8, and an automatic anti-falling device 10 is arranged at the bottom of the weight box 7, all link up on the left and right sides curb plate of preventing weighing down spacing 5 and have a plurality of jacks 11 of preventing weighing down, guide wheel mounting bracket 12 is all installed to the left and right sides of weight box 7, install guide wheel 13 on the guide wheel mounting bracket 12, roll connection between guide wheel 13 and the guide rail 6, the first hoist engine 14 of top fixedly connected with of weight box 7, first hoist engine 14 and first wire rope 15 fixed connection, first assembly pulley 16 and second assembly pulley 17 are installed to the bottom of extension frame 2, first assembly pulley 16 and second assembly pulley 17 are walked around to first wire rope 15, the end and the safety belt 18 of first wire rope 15 are connected, install first controller 19 on the safety belt 18, the below of body of the tower standard festival 1 and a section side of the top all are equipped with second controller 20. And a second winch 25 is installed at the bottom of the extension frame 2, the second winch 25 is connected with a second steel cable 26, and the tail end of the second steel cable 26 is connected with a cable connecting ring at the top of the weight box 7.

Example 5:

as shown in the figures 6 and 10, as further optimization of the above embodiment, the tower crane with labor saving climbing and high safety comprises a tower body, wherein the tower body consists of a plurality of tower body standard sections 1 and an extension frame 2 at the top of the tower body standard section 1, a ladder stand 3 is arranged on the inner side of the tower body, a fixed cross beam 4 is further arranged on the inner side of the tower body, an anti-falling limiting frame 5 is arranged on the front side of the fixed cross beam 4, guide rails 6 are fixedly arranged on the front inner side wall and the rear inner side wall of the anti-falling limiting frame 5, the guide rails 6 are in rolling connection with an anti-falling labor-saving dual-purpose auxiliary device, the anti-falling labor-saving dual-purpose auxiliary device comprises a weight box 7, a plurality of fixing plates 8 are arranged in an inner cavity of the weight box 7, a weight 9 is arranged below each fixing plate 8, an automatic anti-falling device 10 is arranged at the bottom of the weight box 7, prevent weighing down all to link up on the left and right sides curb plate of spacing 5 and have a plurality of jacks 11 of preventing weighing down, guide pulley mounting bracket 12 is all installed to the left and right sides of weight box 7, install guide pulley 13 on the guide pulley mounting bracket 12, roll connection between guide pulley 13 and the guide rail 6, the first hoist engine 14 of top fixedly connected with of weight box 7, first hoist engine 14 and 15 fixed connection of first wire rope, first assembly pulley 16 and second assembly pulley 17 are installed to the bottom of extension frame 2, first assembly pulley 16 and second assembly pulley 17 have been walked around to first wire rope 15, the end and the safety belt 18 of first wire rope 15 are connected, install first controller 19 on the safety belt 18, the bottom of body of the tower standard festival 1 and a lesson side of the top all are equipped with second controller 20. Install motor mount 27 in automatic anti-falling device 10's the inner chamber, the spiro union has motor 28 on motor mount 27, motor 28's output shaft is connected with gear 29, gear 29 and first rack 30 and the meshing of second rack 31, both sides homogeneous body shaping has guide bar 32 around first rack 30 and the second rack 31, automatic anti-falling device 10's internally mounted has guide block 33, guide block 33 and automatic anti-falling device 10's the left and right sides side all run through between have guide slot 34, guide slot 34 and first rack 30 and second rack 31 and guide bar 32 sliding connection.

Example 6:

as shown in fig. 4 and 5, as a further optimization of the above embodiment, a tower crane with labor saving and high safety in climbing comprises a tower body, the tower body is composed of a plurality of tower body standard sections 1 and an extension frame 2 at the top of the tower body standard sections 1, a ladder stand 3 is arranged on the inner side of the tower body, a fixed cross beam 4 is further arranged on the inner side of the tower body, an anti-falling limiting frame 5 is arranged on the front side of the fixed cross beam 4, guide rails 6 are fixedly arranged on the front and rear inner side walls of the anti-falling limiting frame 5, the guide rails 6 are in rolling connection with an anti-falling labor-saving dual-purpose auxiliary device, the anti-falling labor-saving dual-purpose auxiliary device comprises a weight box 7, a plurality of fixing plates 8 are arranged in an inner cavity of the weight box 7, a weight block 9 is arranged below each fixing plate 8, and an automatic anti-falling device 10 is arranged at the bottom of the weight box 7, all link up on the left and right sides curb plate of preventing weighing down spacing 5 and have a plurality of jacks 11 of preventing weighing down, guide wheel mounting bracket 12 is all installed to the left and right sides of weight box 7, install guide wheel 13 on the guide wheel mounting bracket 12, roll connection between guide wheel 13 and the guide rail 6, the first hoist engine 14 of top fixedly connected with of weight box 7, first hoist engine 14 and first wire rope 15 fixed connection, first assembly pulley 16 and second assembly pulley 17 are installed to the bottom of extension frame 2, first assembly pulley 16 and second assembly pulley 17 are walked around to first wire rope 15, the end and the safety belt 18 of first wire rope 15 are connected, install first controller 19 on the safety belt 18, the below of body of the tower standard festival 1 and a section side of the top all are equipped with second controller 20. And a box door 35 is arranged on the front surface of the weight box 7.

The utility model discloses a theory of operation and use flow: when the device is used, a proper number of balancing weights 9 are sequentially placed below each fixing plate 8 in the weight box 7 according to needs, the total weight of the balancing weights 9 is lower than the weight of a normal person, the balancing weights 9 and the fixing plates 8 are fixed through fixing pins, the box door 35 is closed, the first winch 14 is controlled by the second controller 20 to wind or release the first steel cable 15, after the length of the first steel cable outside the first winch 14 is adapted to the overall height of the current tower crane, the hydraulic cylinder 23 is controlled to push the clamping plates 24 to move oppositely to clamp and fix the first steel cable 15, the reinforcing effect is achieved, the dangerous condition that the first steel cable 15 cannot be fixed due to the fact that the first winch 14 fails is avoided, the second winch 25 is controlled to drive the anti-falling labor-saving dual-purpose auxiliary device to move upwards through the matching of the guide wheel 13 and the guide rail 6, the safety belt 18 is lowered to the height of the waist of a ground worker, when the worker climbs upwards by using the ladder stand 3, the safety belt 18 is fixed between the waist, the first controller 19 can control the second winch 25 to unreel, the second steel cable 26 is released, the weight box 7 is placed downwards, under the action of gravity of the weight box 7, pulling force can be provided for the worker to climb upwards by pulling the first steel cable 15, physical strength consumed by the worker to climb upwards can be greatly saved, after the worker climbs to the uppermost tower body standard knot 1, the second winch 25 stops running, the worker can move to a platform at the outer side to enter a cab, when the worker needs to descend from the tower, the safety belt 18 is tied to the waist, the second counterweight 25 can be controlled by the first controller 19 to reel, the second steel cable 26 drives the winch box 7 to ascend, therefore, the first steel cable 15 can move through the first pulley block 16 and the second pulley block 17 to enable the safety belt 18 to descend along with downward climbing of a worker until the worker safely descends to the ground, the safety belt 18 can be unfastened, in the using process of the tower crane, when additional personnel such as a security worker also need to ascend to the top of the tower crane or descend from the top of the tower crane, the second controller 20 can control the second winch 25 to operate, the safety belt 18 is driven to ascend or descend, the use of other personnel is facilitated, accidents such as stepping empty and falling occur in the climbing process of the worker, the falling-preventing labor-saving dual-purpose auxiliary device can timely stop falling of the worker, the worker is effectively prevented from falling to the ground, the falling speed of the worker can be greatly reduced under the gravity action of the weight box 7, enough reaction time can be provided for the worker, the worker can emergently control the operation of the motor 28 in the automatic falling-preventing device 10 through the first controller 19, the motor 28 drives the gear 29 to rotate, the gear 29 drives the first rack 30 and the second rack 31 to respectively move along the guide block 33 and the jack 34 of the automatic weight box 10, and the falling-preventing rack 7 can be prevented from continuously from moving upwards along the jack 5, and the jack 34 of the falling-preventing jack of the safety ladder, and the falling-preventing worker can be prevented from continuing to move when the falling-preventing jack 7 under the lifting jack of the lifting rack 7.

Claims (6)

1. The utility model provides a tower crane that laborsaving and security of climbing is high which characterized in that: including the tower body, the tower body comprises extension frame (2) at a plurality of tower body standard festival (1) and tower body standard festival (1) top, the inboard of tower body is equipped with cat ladder (3), the inboard of tower body still is equipped with fixed cross beam (4), the front side of fixed cross beam (4) is equipped with prevents weighing down spacing (5), the equal fixed mounting of inside wall has guide rail (6) around preventing weighing down spacing (5), guide rail (6) and the dual-purpose auxiliary device roll connection of preventing weighing down laborsaving, prevent weighing down laborsaving dual-purpose auxiliary device include weight box (7), be equipped with a plurality of fixed plates (8) in the inner chamber of weight box (7), every the below of fixed plate (8) all is equipped with one balancing weight (9), the bottom of weight box (7) is equipped with automatic anti-falling device (10), it all has run through on the left and right sides curb plate of anti-falling spacing (5) has a plurality of jacks (11), assembly pulley (12) are all installed to the left and right sides of weight box (7), install guide pulley (13) and first guide rail (6) and second rolling connection first lifting machine (14) top of preventing weighing down and second extension frame (14), first lifting machine (14) are connected with one volume (14) The tower body standard knot comprises a tower body standard knot (1), a first steel cable (15) and a second steel cable assembly (17), wherein the first steel cable (15) bypasses a first pulley assembly (16) and a second pulley assembly (17), the tail end of the first steel cable (15) is connected with a safety belt (18), a first controller (19) is installed on the safety belt (18), and second controllers (20) are arranged on the side surfaces of the lowest part and the highest part of the tower body standard knot (1).

2. The tower crane capable of climbing in a labor-saving manner and having high safety according to claim 1, is characterized in that: the pin holes are formed between the top surface and the bottom surface of the balancing weight (9) and between the top surface and the bottom surface of the fixing plate (8) in a penetrating mode, and the balancing weight (9) and the fixing plate (8) are connected and fixed through the fixing pins inserted into the pin holes.

3. The tower crane capable of climbing in a labor-saving manner and having high safety according to claim 1, is characterized in that: wire rope centre gripping fixing base (21) are installed at the top of weight box (7), two backup pads (22) about installing at the top of wire rope centre gripping fixing base (21), control two the equal fixed mounting in one side of backup pad (22) has pneumatic cylinder (23), the piston rod of pneumatic cylinder (23) runs through backup pad (22) and splint (24) are fixed.

4. The tower crane capable of climbing in a labor-saving manner and having high safety as claimed in claim 1, is characterized in that: and a second winch (25) is installed at the bottom of the extension frame (2), the second winch (25) is connected with a second steel cable (26), and the tail end of the second steel cable (26) is connected with a steel cable connecting ring at the top of the weight box (7).

5. The tower crane capable of climbing in a labor-saving manner and having high safety according to claim 1, is characterized in that: install motor mount (27) in the inner chamber of automatic anti-falling device (10), the spiro union has motor (28) on motor mount (27), the output shaft and gear (29) of motor (28) are connected, gear (29) and first rack (30) and second rack (31) meshing, both sides homogeneous body shaping has conducting bar (32) around first rack (30) and second rack (31), the internally mounted of automatic anti-falling device (10) has guide block (33), all run through between the left and right sides side of guide block (33) and automatic anti-falling device (10) has guide slot (34), guide slot (34) and first rack (30) and second rack (31) and conducting bar (32) sliding connection.

6. The tower crane capable of climbing in a labor-saving manner and having high safety according to claim 1, is characterized in that: and the front surface of the weight box (7) is provided with a box door (35).

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