CN215516437U

CN215516437U - Closed-angle square tube for outer cantilever of tower crane

Info

Publication number: CN215516437U
Application number: CN202121884088.XU
Authority: CN
Inventors: 孙兆栋
Original assignee: Jinan Fangyuan Pipe Making Co ltd
Current assignee: Jinan Fangyuan Pipe Making Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-01-14
Anticipated expiration: 2031-08-12

Abstract

The utility model discloses a sharp-angled square tube for an outer cantilever of a tower crane, which comprises a square tube body, wherein two sides of the square tube body in the horizontal direction are respectively provided with a sliding groove along the length direction, the inner wall of one side of the sliding groove is provided with a plurality of positioning holes at equal intervals, a door-shaped frame is arranged on the square tube body in a sliding manner, sliding blocks are respectively fixed on the lower parts of the inner walls of two sides of the vertical part of the door-shaped frame through bolts, the two sliding blocks are respectively arranged in the two sliding grooves in a sliding manner, L-shaped rods are welded on two sides of the upper part of the horizontal end of the door-shaped frame, one end of each of the two L-shaped rods is provided with an auxiliary clamping mechanism, and a positioning and clamping mechanism is arranged between each positioning pin and an L-shaped column. The utility model realizes the pre-fixing function of the connecting piece, has the auxiliary centralizing effect, has the function of automatically searching and positioning the welding position, avoids the staggered welding caused by carelessness of welding personnel, has simple operation and greatly improves the welding efficiency.

Description

Closed-angle square tube for outer cantilever of tower crane

Technical Field

The utility model relates to the technical field of tower crane cantilevers, in particular to a sharp-angled square tube for an outer cantilever of a tower crane.

Background

The tower crane is called tower crane for short, and is originated from western Europe, and the rotating crane with movable arm mounted on the upper portion of tower body is large in working space, and is mainly used for vertical and horizontal conveying of material and installation of building member in building construction.

The cantilever of tower machine plays key role to tower machine jack-up tonnage and balance, and the cantilever is mainly formed by square pipe and connecting piece welding equipment, and current closed angle side pipe is when the welding of connecting piece in advance, often because the welding personnel error causes the skew dislocation of welding position, influences the cantilever quality to do not possess auxiliary positioning fixed establishment during the welding, bring the puzzlement for welding personnel, consequently, now provide a tower machine closed angle side pipe for outer cantilever.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a sharp-angled square tube for an outer cantilever of a tower crane.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a closed angle side pipe for outer cantilever of tower machine, includes square pipe body, square pipe body horizontal direction both sides are all opened along its length direction has the spout, and spout one side inner wall equidistance is opened and is had a plurality of locating holes, slide on the square pipe body and be equipped with a door-shaped frame, and the equal bolt fastening in door-shaped frame vertical part both sides inner wall lower part has a slider, two the slider slides respectively and locates in two spouts, L shape pole, two have all been welded to door-shaped frame horizontal end upper portion both sides L shape pole one end all is equipped with supplementary clamping mechanism, equal slip is inserted at door-shaped frame horizontal part one side both ends and is equipped with L shape post, and two L shape posts keep away from door-shaped frame one end horizontal welding and have same pull rod, two the slider is close to one side equal horizontal slip relatively and is equipped with the locating pin, and is equipped with location chucking mechanism between locating pin and the L shape post.

Preferably, the auxiliary clamping mechanism comprises two L-shaped rods, one end of each L-shaped rod, which is far away from the door-shaped frame, penetrates through sliding columns arranged on the outer walls of the two sides of the door-shaped frame in a sliding mode, and arc-shaped clamping plates are fixed on the sliding columns, which are relatively close to one ends of the sliding columns, through bolts.

Preferably, two the traveller is kept away from one end relatively and all is welded spacing dish, it is equipped with first spring, two all to overlap between arc splint and L shape pole one side inner wall to be located on the traveller the arc splint upside is along being arc surface structure.

Preferably, the positioning and clamping mechanism comprises L-shaped grooves which are formed in the vertical part of the portal frame, the L-shaped grooves are internally provided with L-shaped connecting rods in a sliding mode, the lower ends of the two L-shaped connecting rods are fixedly connected to one side of the two positioning pins respectively, the upper ends of the two L-shaped connecting rods extend into the rectangular grooves, elastic push-out structures are arranged between the L-shaped connecting rods and the L-shaped grooves, and the horizontal part of the portal frame is provided with a release assembly.

Preferably, the release assembly comprises a rectangular groove formed in the horizontal part of the door-shaped frame, the upper ends of the two L-shaped grooves are communicated with the rectangular groove, a trapezoidal plate is arranged in the rectangular groove in a sliding mode, two inclined planes of the trapezoidal plate are respectively contacted with the upper ends of the two L-shaped connecting rods, and one end, far away from the pull rod, of each L-shaped column penetrates through the inner wall on one side of the rectangular groove and is fixedly inserted into one side of the trapezoidal plate.

Preferably, the elastic push-out structure comprises two L-shaped connecting rods, wherein the two L-shaped connecting rods are relatively far away from a second spring fixed by a lower part of one side through a horizontal bolt, and the other end of the second spring is fixed on the inner wall of one side of the L-shaped groove through a bolt.

Preferably, the elastic push-out structure comprises two L-shaped connecting rods, magnets are embedded and fixed in the lower portion of the side, away from the lower portion of the side, of the L-shaped connecting rods, and the lower portions of the inner walls of the two L-shaped grooves are mutually embedded and fixed, and the two magnets repel each other magnetically.

The utility model has the beneficial effects that:

1. through the fixed two L shape poles that set up in door shape frame upper portion and the supplementary clamping mechanism that two L shape pole one ends set up, cooperation slider and spout, make people need with a plurality of connecting pieces welding when square pipe body upper portion, only need stimulate the pull rod and drive the door shape frame and slide on square pipe body, slide behind the welding position, can directly insert the connecting piece and establish between two arc splint, press from both sides tight connecting piece under two first spring effects, and be applicable to the connecting piece of different diameters, and then welding personnel weld it can, realized the pre-fixing function to the connecting piece and played supplementary righting effect.

2. Set up in advance in two spouts when square pipe body production with the corresponding locating hole in welding point position, the locating pin that slides on two sliders of cooperation sets up, cooperates two second springs to support tight effect for when people slide door shaped frame on square pipe body, after arriving appointed welding position, two locating pins pop out the card and advance fixed door shaped frame in the locating hole, realized the function of automatic searching location welding position, avoided the dislocation welding that welding personnel careless caused.

3. Through the inside location chucking mechanism and the release subassembly that set up of door-shaped frame for after people weld and accomplish a connecting piece, only need the pulling pull rod to drive two L shape posts and remove, make trapezoidal plate horizontal migration, extrude two L shape connecting rods and remove, realize that two locating pins shift backward and withdraw from in the locating hole, realize the release effect, easy operation improves welding efficiency greatly.

Drawings

FIG. 1 is a schematic perspective view of a sharp-angled square tube for an outer cantilever of a tower crane according to the present invention;

FIG. 2 is a schematic perspective view of a square tube body of a sharp-angled square tube for an outer cantilever of a tower crane according to the present invention;

FIG. 3 is a schematic diagram of a top view analysis structure of a door-shaped frame of a closed-angle square tube for an external cantilever of a tower crane, which is provided by the utility model;

FIG. 4 is a schematic plan sectional structure view of a gantry of embodiment 1 of a sharp-angled square tube for an outer cantilever of a tower crane according to the present invention;

fig. 5 is a schematic view of a partial plane cross-sectional structure of a portal frame of embodiment 2 of a sharp-angled square tube for an external jib of a tower crane according to the present invention.

In the figure: 1. a square tube body; 2. a chute; 3. positioning holes; 4. a door-shaped frame; 5. an L-shaped rod; 6. an arc-shaped splint; 7. a pull rod; 8. an L-shaped column; 9. a first spring; 10. a traveler; 11. a limiting disc; 12. a slider; 13. positioning pins; 14. an L-shaped slot; 15. an L-shaped connecting rod; 16. a trapezoidal plate; 17. a rectangular groove; 18. a second spring; 19. and a magnet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1

Referring to fig. 1-4, a sharp-angled square tube for an outer cantilever of a tower crane comprises a square tube body 1, wherein sliding grooves 2 are respectively arranged on two sides of the square tube body 1 in the horizontal direction along the length direction, a plurality of positioning holes 3 are equidistantly arranged on the inner wall of one side of the sliding chute 2, a door-shaped frame 4 is slidably arranged on the square tube body 1, and the lower parts of the inner walls of the two sides of the vertical part of the door-shaped frame 4 are all fixed with sliding blocks 12 by bolts, the two sliding blocks 12 are respectively arranged in the two sliding chutes 2 in a sliding way, the two sides of the upper part of the horizontal end of the door-shaped frame 4 are all welded with L-shaped rods 5, one end of each of the two L-shaped rods 5 is provided with an auxiliary clamping mechanism, the two ends of one side of the horizontal part of the door-shaped frame 4 are all inserted with L-shaped columns 8 in a sliding way, and one end of each L-shaped column 8, which is far away from the door-shaped frame 4, is horizontally welded with the same pull rod 7, two sliding blocks 12 are horizontally arranged on one side, which is relatively close to the door-shaped frame, in a sliding manner, and a positioning pin 13 is arranged, and a positioning clamping mechanism is arranged between the positioning pin 13 and the L-shaped column 8.

In the utility model, the auxiliary clamping mechanism comprises two sliding columns 10 which are arranged at one end of the L-shaped rod 5 far away from the door-shaped frame 4 and penetrate through the outer walls of the two sides of the door-shaped frame in a sliding way, arc-shaped clamping plates 6 are fixed at the ends of the two sliding columns 10 which are relatively close to each other, limiting discs 11 are welded at the ends of the two sliding columns 10 which are relatively far away from each other, a first spring 9 is sleeved on each sliding column 10 between each arc-shaped clamping plate 6 and the inner wall of one side of the L-shaped rod 5, the upper side edges of the two arc-shaped clamping plates 6 are of arc-shaped structures, the positioning and clamping mechanism comprises L-shaped grooves 14 which are arranged in the vertical part of the door-shaped frame 4, L-shaped connecting rods 15 are arranged in the two L-shaped grooves 14 in a sliding way, the lower ends of the two L-shaped connecting rods 15 are respectively and fixedly connected to one sides of two positioning pins 13, the upper ends of the two L-shaped connecting rods 15 extend into a rectangular groove 17, an elastic push-out structure is arranged between each L-shaped connecting rod 15 and the L-shaped groove 14, and the horizontal part of the door-shaped frame 4 is provided with a release component, the release subassembly includes rectangular channel 17 of seting up in 4 horizontal parts of door-shaped frame, and two 14 upper ends in L shape groove all are linked together with rectangular channel 17, it is equipped with trapezoidal plate 16 to slide in the

rectangular channel

17, and 16 two inclined planes of trapezoidal plate respectively with two 15 upper end contacts of L shape connecting rod, two L shape posts 8 are kept away from 7 one ends of pull rod and are all passed rectangular channel 17 one side inner wall fixed insertion and locate trapezoidal plate 16 one side, elasticity ejecting structure includes that two L shape connecting rods 15 keep away from the equal horizontal bolt fixed second spring 18 in one side lower part relatively, and the equal bolt fastening of the 18 other ends of second spring is in 14 one side inner walls in L shape groove.

The working principle of the embodiment is as follows: when the square tube body 1 is used, when people slide the door-shaped frame 4 on the square tube body 1, after the specified welding position is reached, the two positioning pins 13 are popped out and clamped into the positioning holes 3 under the action of the second springs 18 to fix the door-shaped frame 4, the function of automatically searching the positioning welding position is realized, the malposition welding caused by the carelessness of welding personnel is avoided, after the welding position is reached, the connecting piece can be directly inserted between the two arc-shaped clamping plates 6, the connecting piece is clamped under the action of the two first springs 9 and is suitable for connecting pieces with different diameters, then the welding personnel can weld the connecting piece, the pre-fixing function of the connecting piece is realized, the auxiliary centering effect is realized, after one connecting piece is welded, only the pull rod 7 is pulled to drive the two L-shaped columns 8 to move, the trapezoidal plate 16 horizontally moves, the two L-shaped connecting rods 15 are extruded, the two positioning pins 13 move backwards and exit from the positioning holes 3, realizes the releasing action, has simple operation and greatly improves the welding efficiency.

Example 2

Referring to fig. 1-3 and 5, a sharp-angled square tube for an outer cantilever of a tower crane comprises a square tube body 1, wherein sliding grooves 2 are respectively arranged on two sides of the square tube body 1 in the horizontal direction along the length direction, a plurality of positioning holes 3 are equidistantly arranged on the inner wall of one side of the sliding chute 2, a door-shaped frame 4 is slidably arranged on the square tube body 1, and the lower parts of the inner walls of the two sides of the vertical part of the door-shaped frame 4 are all fixed with sliding blocks 12 by bolts, the two sliding blocks 12 are respectively arranged in the two sliding chutes 2 in a sliding way, the two sides of the upper part of the horizontal end of the door-shaped frame 4 are all welded with L-shaped rods 5, one end of each of the two L-shaped rods 5 is provided with an auxiliary clamping mechanism, the two ends of one side of the horizontal part of the door-shaped frame 4 are all inserted with L-shaped columns 8 in a sliding way, and one end of each L-shaped column 8, which is far away from the door-shaped frame 4, is horizontally welded with the same pull rod 7, two sliding blocks 12 are horizontally arranged on one side, which is relatively close to the door-shaped frame, in a sliding manner, and a positioning pin 13 is arranged, and a positioning clamping mechanism is arranged between the positioning pin 13 and the L-shaped column 8.

rectangular channel

17, and 16 two inclined planes of trapezoidal plate respectively with two 15 upper end contacts of L shape connecting rod, two L shape posts 8 are kept away from 7 one ends of pull rod and all are passed rectangular channel 17 one side inner wall fixed insertion and locate trapezoidal plate 16 one side, elasticity ejecting structure includes that two L shape connecting rods 15 keep away from one side lower part relatively and two equal embedded fixed magnet 19 in 14 one side inner wall lower parts in L shape groove, and two 19 magnetism of magnet repel each other.

The working principle of the embodiment is as follows: when the square tube body 1 is used, when people slide the door-shaped frame 4 on the square tube body 1, after the specified welding position is reached, the two positioning pins 13 are popped out and clamped into the positioning holes 3 under the action of the repulsive magnets 19 to fix the door-shaped frame 4, the function of automatically searching the positioning welding position is realized, the malposition welding caused by the carelessness of welding personnel is avoided, after the welding position is reached, the connecting piece can be directly inserted between the two arc-shaped clamping plates 6, the connecting piece is clamped under the action of the two first springs 9 and is suitable for connecting pieces with different diameters, then the welding personnel can weld the connecting piece, the pre-fixing function of the connecting piece is realized, the auxiliary centering effect is realized, after one connecting piece is welded, only the pull rod 7 is pulled to drive the two L-shaped columns 8 to move, the trapezoidal plate 16 moves horizontally, the two L-shaped connecting rods 15 are extruded, the two positioning pins 13 move backwards and exit from the positioning holes 3, realizes the releasing action, has simple operation and greatly improves the welding efficiency.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A closed-angle square tube for an outer cantilever of a tower crane comprises a square tube body (1) and is characterized in that sliding grooves (2) are formed in two sides of the square tube body (1) in the horizontal direction along the length direction, a plurality of positioning holes (3) are formed in the inner wall of one side of each sliding groove (2) in an equidistance mode, an L-shaped frame (4) is arranged on the square tube body (1) in a sliding mode, sliding blocks (12) are fixed to the lower portions of the inner walls of two sides of the vertical portion of the door-shaped frame (4) in a bolt mode, the two sliding blocks (12) are arranged in the two sliding grooves (2) in a sliding mode respectively, L-shaped rods (5) are welded to two sides of the upper portion of the horizontal end of the door-shaped frame (4), auxiliary clamping mechanisms are arranged at one ends of the two L-shaped rods (5), L-shaped columns (8) are inserted into two ends of one side of the horizontal portion of the door-shaped frame (4) in a sliding mode, one end, far away from the door-shaped frame (4), is welded with the same pull rod (7) horizontally, two the equal horizontal slip of slider (12) one side of being close to relatively is equipped with locating pin (13), and is equipped with the location chucking mechanism between locating pin (13) and L shape post (8).

2. The sharp-angled square tube for the outer cantilever of the tower crane according to claim 1, wherein the auxiliary clamping mechanism comprises two sliding columns (10) which are arranged in a sliding manner by penetrating through the outer walls of two sides of the door-shaped frame (4) at one ends of the two L-shaped rods (5) far away from the door-shaped frame, and arc-shaped clamping plates (6) are fixed on the two sliding columns (10) relatively close to one ends of the two sliding columns by bolts.

3. The sharp-angled square tube for the outer cantilever of the tower crane according to claim 2, wherein a limiting disc (11) is welded at one end, away from the other end, of each of the two sliding columns (10), a first spring (9) is sleeved between the arc-shaped clamping plate (6) and the inner wall of one side of the L-shaped rod (5) on each of the two sliding columns (10), and the upper side edge of each of the two arc-shaped clamping plates (6) is of an arc-shaped structure.

4. The sharp-angled square tube for the outer cantilever of the tower crane according to claim 1, wherein the positioning and clamping mechanism comprises L-shaped grooves (14) formed in the vertical part of the portal frame (4), L-shaped connecting rods (15) are arranged in the two L-shaped grooves (14) in a sliding manner, the lower ends of the two L-shaped connecting rods (15) are fixedly connected to one sides of the two positioning pins (13) respectively, the upper ends of the two L-shaped connecting rods (15) extend into the rectangular groove (17), an elastic push-out structure is arranged between the L-shaped connecting rods (15) and the L-shaped grooves (14), and a release assembly is arranged on the horizontal part of the portal frame (4).

5. The sharp-angled square tube for the outer cantilever of the tower crane according to claim 4, wherein the releasing assembly comprises a rectangular groove (17) formed in the horizontal part of the door-shaped frame (4), the upper ends of the two L-shaped grooves (14) are communicated with the rectangular groove (17), a trapezoidal plate (16) is arranged in the rectangular groove (17) in a sliding manner, two inclined planes of the trapezoidal plate (16) are respectively contacted with the upper ends of the two L-shaped connecting rods (15), and one ends of the two L-shaped columns (8) far away from the pull rod (7) penetrate through the inner wall of one side of the rectangular groove (17) and are fixedly inserted into one side of the trapezoidal plate (16).

6. The sharp-angled square tube for the outer cantilever of the tower crane according to claim 4, wherein the elastic push-out structure comprises two L-shaped connecting rods (15), a second spring (18) is horizontally fixed by bolts at the lower part of one side of the L-shaped connecting rods, and the other end of the second spring (18) is fixed by bolts at the inner wall of one side of the L-shaped groove (14).

7. The sharp-angled square tube for the outer cantilever of the tower crane according to claim 4, wherein the elastic pushing structure comprises two L-shaped connecting rods (15) which are relatively far away from the lower part of one side and two magnets (19) which are embedded and fixed in the lower part of the inner wall of one side of the two L-shaped grooves (14), and the two magnets (19) are magnetically repelled.