CN213202175U - Connecting suspension arm for tower crane - Google Patents

Abstract

The utility model discloses a tower crane is with connecting davit relates to building site technical field. The splicing type multi-layer plastic pipe comprises an ejector rod, two bottom rods, a connecting rod and a cross rod, wherein the ejector rod is connected with the bottom rods through the connecting rod, the two bottom rods are connected with each other through the cross rod, splicing rods are fixedly connected to one sides of the bottom rods and one sides of the ejector rod, and inserting grooves and splicing grooves are formed in the other sides of the bottom rods and the ejector rod respectively. Through setting up the concatenation mechanism, through pressing the drive plate, make the leading wheel slide along the drive plate direction, make the diaphragm drive the locating lever and use the locating wheel to deflect as the centre of a circle, make the locating lever fix a position the concatenation pole, make accomplish the concatenation between two davits, and whole concatenation process, only need remove the drive plate can, make the dismouting between two davits comparatively quick and high-efficient, when the construction range of tower crane needs to be changed, a plurality of these davits of accessible combination, thereby enlarge the scope of construction, compare in current regulative mode, time saving and labor saving more.

Description

Connecting suspension arm for tower crane

Technical Field

The utility model relates to a building site technical field specifically is a tower crane is with connecting davit.

Background

The tower crane is the most common hoisting equipment on the construction site, also known as tower crane, and is lengthened section by section for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like. The tower crane is an indispensable device on a construction site.

Among the prior art, traditional connection davit length is fixed basically for the coverage of tower crane also receives fixedly, when the construction scope of building site is greater than the coverage of tower crane, then need to change longer davit, but change the davit this moment, it is hard and time-consuming, moreover delayed the progress of hanging high work.

SUMMERY OF THE UTILITY MODEL

The utility model provides a tower crane is with connecting davit possesses the advantage of concatenation formula to solve the problem of changing the davit.

For the purpose that realizes the concatenation formula, the utility model provides a following technical scheme: a connecting suspension arm for a tower crane comprises an ejector rod, two bottom rods, a connecting rod and a cross rod, wherein the ejector rod is connected with the bottom rods through the connecting rod, the two bottom rods are connected through the cross rod, splicing rods are fixedly connected to one sides of the bottom rods and the ejector rod, splicing grooves and splicing grooves are respectively formed in the other sides of the bottom rods and the ejector rod, and a splicing mechanism is arranged inside each splicing groove;

splicing mechanism includes the drive plate, the drive chamber has been seted up to splicing groove's inner wall, the drive chamber is linked together with splicing groove, the inside in drive chamber is provided with the drive plate, the outside overlap joint of drive plate has the leading wheel, the other end fixedly connected with diaphragm of leading wheel, the diaphragm be located splicing groove's inside and with splicing groove's inner wall sliding connection, the other end of diaphragm articulates there is the locating lever, the location mouth has been seted up to the inside of locating lever, splicing groove's inner wall fixedly connected with locating wheel, the other end of locating wheel extend to the inside of location mouth and with the inside sliding connection of location mouth.

As an optimal technical scheme of the utility model, the bottom fixed mounting of drive intracavity wall has places the piece, place the bottom fixed connection of piece and drive plate, the outside fixedly connected with baffle of drive plate, baffle and leading wheel overlap joint.

As an optimal technical scheme of the utility model, the spout has been seted up at the top of ejector pin, the inner wall fixedly connected with folded piece of spout, the top fixedly connected with apron of folded piece, the apron is located the top in drive chamber to with the top overlap joint of drive plate.

As a preferred technical scheme of the utility model, the inner wall fixed mounting of splice groove has the gyro wheel, the round mouth has been seted up to the inside of diaphragm, the bottom of gyro wheel extend to the inside of round mouth and with the inner wall sliding connection of round mouth.

As an optimized technical scheme of the utility model, the constant head tank with locating lever looks adaptation is seted up at the top of concatenation pole.

Compared with the prior art, the utility model provides a tower crane is with connecting davit possesses following beneficial effect:

this tower crane is with connecting davit, through setting up splicing mechanism, through pressing down the drive plate, make the leading wheel slide along the drive plate direction, make the diaphragm drive the locating lever and use the locating wheel to deflect as the centre of a circle, make the locating lever fix a position the concatenation pole, make and accomplish the concatenation between two davits, and whole concatenation process, only need remove the drive plate can, make the dismouting between two davits comparatively quick and high-efficient, when the construction scope of tower crane needs to be changed, a plurality of these davits of accessible combination, thereby enlarge construction range, compare in current regulative mode, time saving and labor saving more.

Drawings

FIG. 1 is a side view of the structure of the present invention;

fig. 2 is a front view of the structure of the present invention;

fig. 3 is a front sectional view of the splicing mechanism of the present invention.

In the figure: 1. a top rod; 2. a bottom bar; 3. a connecting rod; 4. a cross bar; 5. inserting grooves; 6. a splicing mechanism; 7. splicing grooves; 8. splicing rods; 9. a drive chamber; 10. a drive plate; 11. placing the blocks; 12. a chute; 13. a folding member; 14. a cover plate; 15. a guide wheel; 16. a baffle plate; 17. a transverse plate; 18. rolling the opening; 19. a roller; 20. positioning a rod; 21. positioning the opening; 22. and (5) positioning the wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-3, the utility model discloses a tower crane is with connecting davit, including ejector pin 1, two sill bars 2, connecting rod 3 and horizontal pole 4, ejector pin 1 is connected with sill bar 2 through connecting rod 3, is connected through horizontal pole 4 between two sill bars 2, the equal fixedly connected with splice bar 8 in one side of sill bar 2 and ejector pin 1, the constant head tank with 20 looks adaptations of locating lever is seted up at splice bar 8's top, spliced groove 5 and splice groove 7 have been seted up respectively to sill bar 2 and ejector pin 1's opposite side, splice groove 7's inside is provided with splicing mechanism 6.

The splicing mechanism 6 comprises a driving plate 10, a driving cavity 9 is formed in the inner wall of the splicing groove 7, the driving cavity 9 is communicated with the splicing groove 7, the driving plate 10 is arranged in the driving cavity 9, a guide wheel 15 is lapped on the outer side of the driving plate 10, a transverse plate 17 is fixedly connected to the other end of the guide wheel 15, the transverse plate 17 is located in the splicing groove 7 and is in sliding connection with the inner wall of the splicing groove 7, a roller 19 is fixedly mounted on the inner wall of the splicing groove 7, a rolling opening 18 is formed in the transverse plate 17, the bottom end of the roller 19 extends into the rolling opening 18 and is in sliding connection with the inner wall of the rolling opening 18, a positioning rod 20 is hinged to the other end of the transverse plate 17, a positioning opening 21 is formed in the positioning rod 20, a positioning wheel 22 is fixedly connected to the inner wall of the splicing groove 7, and the other end of the positioning wheel 22 extends into the positioning opening 21 and is in, this tower crane is with connecting davit, through setting up splicing mechanism 6, through pressing down drive plate 10, make leading wheel 15 slide along drive plate 10 direction, make diaphragm 17 drive locating lever 20 deflect with locating wheel 22 as the centre of a circle, make locating lever 20 fix a position concatenation pole 8, make and accomplish the concatenation between two davits, and whole concatenation process, only need to remove drive plate 10 can, make the dismouting between two davits comparatively quick and high-efficient, when the construction range of tower crane needs to be changed, a plurality of these davits of accessible combination, thereby enlarge construction range, compare in current regulative mode, time saving and labor saving more.

Specifically, the bottom fixed mounting of drive chamber 9 inner wall has places piece 11, place the bottom fixed connection of piece 11 and drive plate 10, the outside fixedly connected with baffle 16 of drive plate 10, baffle 16 and leading wheel 15 overlap joint utilize and place piece 11 and can carry out stable the placing to drive plate 10 displacement when to the minimum, utilize baffle 16 to restrict the lowest position of drive plate 10.

Specifically, spout 12 has been seted up at the top of ejector pin 1, the inner wall fixedly connected with folded piece 13 of spout 12, the top fixedly connected with apron 14 of folded piece 13, apron 14 is located the top of drive chamber 9 to with the top overlap joint of drive plate 10, utilize the automatic resilience of spring on the folded piece 13, make apron 14 have automatic effect, make apron 14 can remain throughout in the top of drive chamber 9, thereby contradict the top of drive plate 10.

The utility model discloses a theory of operation and use flow: when the crane jib is used, when the total length of the crane jib needs to be adjusted, two adjacent crane jibs can be connected, the two crane jibs are at the same height firstly, splicing bars 8 of the two crane jibs are inserted into splicing grooves 5 and 7 of the latter, the drive plate 10 is pressed, the drive plate 10 is enabled to move downwards, the drive plate 10 is enabled to be in contact with a placing block 11 finally, the outer side of the drive plate 10 is a slope, guide wheels 15 are enabled to slide gradually in the moving process of the drive plate 10, the guide wheels 15 are enabled to be in lap joint with baffle plates 16 finally, transverse plates 17 are enabled to slide under the driving of the guide wheels 15, the positioning rods 20 are enabled to deflect by taking positioning wheels 22 as circle centers, the positioning rods 20 are enabled to be inserted into the splicing bars 8 finally, at the moment, the splicing bars 8 complete fixing work in the ejector rods.

To sum up, this tower crane is with connecting davit, through setting up splicing mechanism 6, through pressing drive plate 10, make leading wheel 15 slide along drive plate 10 direction, make diaphragm 17 drive locating lever 20 to deflect as the centre of a circle with locating wheel 22, make locating lever 20 fix a position concatenation pole 8, make and accomplish the concatenation between two davits, and whole concatenation process, only need to remove drive plate 10 can, make the dismouting between two davits comparatively quick and high-efficient, when the construction range of tower crane needs to be changed, a plurality of these davits of accessible combination, thereby enlarge the construction scope, compare in current regulative mode, and is more time saving and labor saving.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a tower crane is with connecting davit, includes ejector pin (1), two sill bars (2), connecting rod (3) and horizontal pole (4), its characterized in that: the top rod (1) is connected with the bottom rods (2) through the connecting rod (3), the two bottom rods (2) are connected through the cross rod (4), splicing rods (8) are fixedly connected to one sides of the bottom rods (2) and the top rod (1), splicing grooves (5) and splicing grooves (7) are formed in the other sides of the bottom rods (2) and the top rod (1) respectively, and a splicing mechanism (6) is arranged inside each splicing groove (7);

the splicing mechanism (6) comprises a driving plate (10), a driving cavity (9) is arranged on the inner wall of the splicing groove (7), the driving cavity (9) is communicated with the splicing groove (7), a driving plate (10) is arranged inside the driving cavity (9), a guide wheel (15) is lapped on the outer side of the driving plate (10), the other end of the guide wheel (15) is fixedly connected with a transverse plate (17), the transverse plate (17) is positioned inside the splicing groove (7) and is connected with the inner wall of the splicing groove (7) in a sliding way, the other end of the transverse plate (17) is hinged with a positioning rod (20), a positioning opening (21) is arranged inside the positioning rod (20), the inner wall of the splicing groove (7) is fixedly connected with a positioning wheel (22), and the other end of the positioning wheel (22) extends to the inside of the positioning opening (21) and is in sliding connection with the inside of the positioning opening (21).

2. The connecting boom for the tower crane according to claim 1, wherein: the bottom fixed mounting of drive chamber (9) inner wall places piece (11), place the bottom fixed connection of piece (11) and drive plate (10), the outside fixedly connected with baffle (16) of drive plate (10), baffle (16) and leading wheel (15) overlap joint.

3. The connecting boom for the tower crane according to claim 1, wherein: the top of ejector pin (1) has been seted up spout (12), the inner wall fixedly connected with folded piece (13) of spout (12), the top fixedly connected with apron (14) of folded piece (13), apron (14) are located the top of drive chamber (9) to overlap joint with the top of drive plate (10).

4. The connecting boom for the tower crane according to claim 1, wherein: the inner wall of the splicing groove (7) is fixedly provided with a roller (19), the transverse plate (17) is internally provided with a rolling opening (18), and the bottom end of the roller (19) extends to the inside of the rolling opening (18) and is in sliding connection with the inner wall of the rolling opening (18).

5. The connecting boom for the tower crane according to claim 1, wherein: and the top of the splicing rod (8) is provided with a positioning groove matched with the positioning rod (20).

Images