CN220999027U

CN220999027U - Lower limit structure of tower drum lifter

Info

Publication number: CN220999027U
Application number: CN202322634734.2U
Authority: CN
Inventors: 王伟; 杨英; 邱春雷
Original assignee: Cgn Beijing New Energy Technology Co ltd
Current assignee: Cgn Beijing New Energy Technology Co ltd
Priority date: 2023-09-27
Filing date: 2023-09-27
Publication date: 2024-05-24
Anticipated expiration: 2033-09-27

Abstract

The application discloses a lower limit structure of a tower drum lifter, which relates to the technical field of tower drum lifters and comprises a lifter bottom plate, a limit trigger assembly, a lower profile assembly and a sealing plate, wherein a plurality of groups of mounting groove groups are formed in the lifter bottom plate; one end of the limit trigger component is rotationally connected with a connecting bracket, and the connecting bracket is detachably connected with the bottom plate of the lifter through a mounting groove; the lower profile assembly comprises a moving plate which can move towards the direction approaching or far away from the bottom plate of the lifter, and the moving plate is provided with abdicating holes with the same number as that of the mounting groove groups; when the limit trigger component is connected with the bottom plate of the lifter, the bottom part penetrates out of the abdication hole; the closing plate is provided with a plurality of, and one-to-one corresponds to open and close a hole of stepping down. The application has the effects of being convenient for adjusting the position of the limit trigger assembly and increasing and decreasing the number of the limit trigger assemblies, thereby improving the applicability.

Description

Lower limit structure of tower drum lifter

Technical Field

The application relates to the technical field of tower barrel elevators, in particular to a lower limit structure of a tower barrel elevator.

Background

In some constructional engineering, a tower crane is often required, and the tower crane can be used for carrying workers or tools and materials to a high place, and is similar to an elevator structure, and generally adopts a steel wire rope to lift and cooperate with a rail to realize the function of running a car body. In order to improve the security performance, a limit structure is usually arranged on the lifter, and the limit structure generally comprises an upper limit structure and a lower limit structure, and the operation of the lifter is timely closed through the limit structure, so that the security performance of the lifter is improved.

The Chinese patent document with the publication number CN209127829U in the related art discloses a limiting device of a tower drum lifter, and aims at a lower limiting structure of the lifter, and the limiting device comprises a limiting trigger assembly which is rotationally connected to a bottom plate of the lifter and a lower profile assembly which is slidingly connected to the bottom of the lifter, wherein the limiting assembly comprises a rotating bracket rotationally connected with a connecting bracket, a first travel switch and a second travel switch are arranged on the rotating bracket, and a limiting trigger plate is rotationally connected with the rotating bracket, and a pulley is rotationally connected to the limiting trigger plate. The double-layer protection effect of the limit function of the elevator is realized through the first travel switch and the second travel switch.

However, in the above scheme, the position of the rotating bracket and the position of the yielding hole formed in the lower profile assembly are limited, so that the limiting trigger assemblies with different specifications are inconvenient to replace, and the positions of the limiting trigger assemblies are inconvenient to increase, decrease and adjust, so that the applicability is low.

Disclosure of utility model

In order to facilitate adjustment of the positions of limit trigger components and increase and decrease of the number of limit trigger components, and accordingly improve applicability, the application provides a lower limit structure of a tower crane.

The application provides a lower limit structure of a tower drum lifter, which adopts the following technical scheme:

a lower limit structure of a tower drum lifter, which comprises

The elevator comprises an elevator bottom plate, wherein a plurality of mounting groove groups are formed in the elevator bottom plate;

The device comprises a limiting trigger assembly, a connecting bracket and a lifting device, wherein one end of the limiting trigger assembly is rotationally connected with the connecting bracket, and the connecting bracket is detachably connected with the lifting device bottom plate through a mounting groove;

The lower profile assembly comprises a moving plate which can move towards the direction close to or far away from the bottom plate of the lifter, and the moving plate is provided with abdicating holes with the same number as that of the mounting groove groups; when the limit trigger component is connected with the bottom plate of the lifter, the bottom part penetrates out of the abdication hole;

The sealing plates are provided with a plurality of sealing holes and are in one-to-one correspondence with the opening and closing holes.

Through adopting above-mentioned technical scheme, through setting up multiunit mounting groove group and corresponding hole of stepping down for spacing trigger assembly can install a plurality of and/or install in different positions, thereby improves the suitability, and through setting up the closing plate, when not using the hole of stepping down, can be through the closing plate will step down the hole and seal, thereby reduce the influence that the hole of stepping down caused the original spacing trigger function of movable plate.

Optionally, each group of mounting groove group includes a plurality of mounting grooves, has seted up the locking groove on the mounting groove lateral wall, be provided with the installation pole that is used for pegging graft to the mounting groove on the linking bridge top, sliding connection has the locking strip that is used for pegging graft to in the locking groove on the installation pole, be provided with on the linking bridge and be used for the drive the mounting that the locking strip removed.

Through adopting above-mentioned technical scheme, during the installation, can peg graft the installation pole to the mounting groove in to make the locking strip peg graft to the locking inslot through the operation mounting, thereby realize the installation of installation pole and locking strip, when likewise breaking away from the locking groove through mounting drive locking strip, can carry out corresponding unblock, thereby dismantle the linking bridge.

Optionally, the mounting includes the propelling rod that slides simultaneously in many installation poles, set up the spliced groove that supplies the propelling rod to peg graft in the locking strip, the spliced groove is provided with the guide surface that offsets with the propelling rod, can promote the locking strip and slide to the installation pole when the propelling rod is along being close to the upward removal of linking bridge direction.

Through adopting above-mentioned technical scheme, can promote many locking strips simultaneously when the mounting removes to realize the connection or the separation of many locking strips and locking groove, convenient operation is swift.

Optionally, a sliding groove for the locking bar to move, a reset groove for the pushing bar to slide and a reset groove for the pushing bar to slide are formed in the mounting bar, and a reset spring is arranged between the locking bar and the inner wall of the sliding groove.

By adopting the technical scheme, the reset spring is arranged, and when an operator moves the fixing piece to enable the locking block to shrink into the sliding groove and compress the reset spring, the installation rod can be inserted into the installation groove or taken out from the installation groove; when the mounting rod is inserted into the mounting groove and the fixing piece is released, the locking strip part can be automatically moved into the locking groove through the reset spring, so that quick mounting is realized.

Optionally, the closing plate is rotatably connected to the bottom of the moving plate and detachably connected to the moving plate.

By adopting the technical scheme, the closing plate can realize the opening and closing of the abdicating hole in a rotating mode.

Optionally, a magnetic layer is arranged on the sealing plate, and an actuation block for detachably actuating the sealing plate through the magnetic layer is arranged on the moving plate.

Through adopting above-mentioned technical scheme, realized installation and dismantlement through the mode that magnetic force layer and actuation piece magnetism inhale mutually, convenient and fast.

Optionally, the moving plate is provided with the engaging block at two opposite sides of the abdicating hole.

Through adopting above-mentioned technical scheme, when the hole of stepping down uses or does not use, the movable plate can all be fixed through the actuation piece, is difficult for appearing the movable plate and influences the condition of lift because of free rotation.

Optionally, the side wall of the abdication hole is provided with a moving groove, the sealing plate is slidably connected in the moving groove, and a connecting piece for fixing the sealing plate is arranged on the sealing plate.

Through adopting above-mentioned technical scheme, the closure board can be used for opening and close the hole of stepping down through gliding mode to can lock the position of closure board through the connecting piece, the difficult free removal of closure board influences the use of spacing trigger assembly.

Optionally, the connecting piece is threaded connection in the locking bolt of closure board, set up the slot hole that supplies locking bolt to remove on the removal inslot wall, locking bolt's nut is used for supporting tightly the movable plate.

Through adopting above-mentioned technical scheme, when the closure plate removes along the spout, locking bolt can remove along the slot hole, after the closure plate removes the assigned position, can support tightly thereby restrict the position of closure plate through nut and movable plate through rotating locking bolt.

In summary, the present application includes at least one of the following beneficial effects:

1. The limit trigger assembly can be installed in a plurality of positions and/or at different positions through the installation groove groups and the corresponding abdication holes, so that the applicability is improved;

2. By arranging the sealing plate, when the abdication hole is not used, the abdication hole can be sealed through the sealing plate, so that the influence of the abdication hole on the original function of the movable plate is reduced;

3. after the installation rod and the installation groove are inserted, the plurality of locking blocks are simultaneously controlled to enter or leave the locking groove through the control fixing piece, so that the installation and the disassembly can be realized rapidly.

Drawings

FIG. 1 is a schematic view showing a partial sectional structure of embodiment 1 of the present application;

FIG. 2 is a schematic view showing the structure of a floor of an elevator according to embodiment 1 of the present application;

FIG. 3 is a schematic diagram of a moving plate structure according to an embodiment 1 of the present application;

FIG. 4 is a schematic view showing a connection structure of a connection bracket and a bottom plate of an elevator according to embodiment 1 of the present application;

FIG. 5 is an enlarged schematic view at A in FIG. 1;

Fig. 6 is a schematic partial sectional view showing a connection manner of a closing plate according to embodiment 2 of the present application.

Reference numerals illustrate: 1. a lifter floor; 11. a mounting groove; 111. a locking groove; 2. a limit trigger assembly; 21. a roller; 22. a limit trigger plate; 3. a connecting bracket; 31. a mounting rod; 311. a chute; 312. a reset groove; 313. a return spring; 32. a limiting plate; 33. a locking bar; 331. a plug-in groove; 332. a guide surface; 34. a fixing member; 341. pushing the strip; 4. a lower profile assembly; 41. a moving plate; 411. a relief hole; 412. a moving groove; 413. a suction block; 414. a locking bolt; 415. a long hole; 5. a closing plate; 51. and a magnetic layer.

Detailed Description

The application is described in further detail below with reference to fig. 1-6.

Example 1:

Referring to fig. 1 and 2, a lower limit structure of a tower crane disclosed in an embodiment of the application comprises a crane base plate 1 fixed at the bottom of the crane, a limit trigger assembly 2 and a lower profile assembly 4. The limit trigger assembly 2 comprises a limit trigger plate 22, a roller 21, a first limit switch and a second limit switch, wherein the first limit switch and the second limit switch can be used for closing the operation of the elevator in time, and the limit trigger plate 22 and the roller 21 can drive the limit trigger assembly 2 to rotate integrally, so that the first limit switch and the second limit switch are closed with the elevator bottom plate 1.

The lower profile assembly 4 comprises a moving plate 41 slidably connected to the bottom of the elevator, and a telescopic guide rod can be fixed on the bottom plate 1 of the elevator, and the moving plate 41 is slidably connected to the guide rod to realize a moving function. The moving plate 41 is provided with a yielding hole 411 for the limit trigger plate 22 and the roller 21 to pass through, the top of the lower profile component 4 is rotationally connected with a connecting bracket 3, and the lower profile component 4 can be installed on the lifter bottom plate 1 through the connecting bracket 3.

Referring to fig. 2 and 3, two parallel mounting groove groups are formed on the elevator base plate 1, and each row is provided with a plurality of mounting groove groups, for example, four groups are taken as an example, and each mounting groove group comprises a plurality of mounting grooves 11, for example, two mounting groove groups are taken as an example. The plurality of the relief holes 411 are correspondingly formed in the movable plate 41, and the number of the relief holes corresponds to the number of the mounting groove groups. The limit trigger assembly 2 can be provided with a plurality of groups and can be arranged at different positions, so long as the requirement of simultaneously matching with one mounting groove group and the yielding hole 411 is met, and the applicability of the lower limit structure is improved.

Referring to fig. 2 and 4, a locking groove 111 is formed on the side wall of the mounting groove 11, two mounting rods 31 which are in plug-in fit with the mounting groove 11 are fixedly connected to the top of the connecting bracket 3, locking strips 33 which are used for being plugged into the locking groove 111 are slidably connected to the mounting rods 31, and fixing pieces 34 which are used for driving the two locking strips 33 to move together are arranged on the connecting bracket 3, so that the connecting bracket 3 and the lifter bottom plate 1 can be quickly installed and detached.

Specifically, the installation rod 31 is provided therein with a sliding slot 311 for moving the locking bar 33, and a reset slot 312 communicated with the sliding slot 311, wherein the reset slot 312 is L-shaped and one end of the reset slot penetrates through the side wall of the installation rod 31. The fixing member 34 includes two pushing strips 341, the two pushing strips 341 can slide in the reset groove 312 of one mounting rod 31 in a one-to-one correspondence manner, the locking strip 33 is provided with a plugging groove 331 for plugging the pushing strips 341, and one inner wall of the plugging groove 331 is an inclined guiding surface 332. When the push bar 341 moves away from the connection bracket 3, the locking bar 33 can be pushed by the guide surface 332 to retract into the slide groove 311, thereby facilitating the mounting and dismounting between the mounting bar 31 and the mounting groove 11.

Referring to fig. 4, a limiting plate 32 is fixedly connected between two mounting rods 31, and when the mounting rods 31 are inserted into the mounting grooves 11, and the limiting plate 32 and the lifter bottom plate 1 are propped against each other, the sliding groove 311 is opposite to the locking groove 111, and the limiting plate 32 can play a role in positioning. A return spring 313 is fixedly connected between the locking bar 33 and the inner wall of the sliding groove 311, and after the mounting rod 31 is inserted into the mounting groove 11, the locking bar 33 can be partially inserted into the locking groove 111 by the elastic force of the return spring 313.

Referring to fig. 3 and 5, a plurality of closing plates 5 are rotatably disposed on the moving plate 41, and the closing plates 5 are in one-to-one correspondence with one of the relief holes 411, thereby reducing the influence of the unused relief holes 411 on the limiting function.

Referring to fig. 5, the closing plate 5 is rotatably connected to the bottom of the moving plate 41 through a rotating shaft, and the moving plate 41 is fixedly connected with a suction block 413 respectively on two opposite sides of a yielding hole 411, one end of the closing plate 5 far away from the rotating end is provided with a magnetic layer 51, the magnetic layer 51 is a magnet, and the suction block 413 is an iron block, after the closing plate 5 is rotated, connection between the closing plate 5 and the moving plate 41 can be achieved through attraction of the magnetic layer 51 and the suction block 413, so that connection between the closing plate 5 and the moving plate 41 can be achieved no matter whether the corresponding yielding hole 411 is closed or not, and influence of the closing plate 5 on a limiting function is reduced.

The implementation principle of the lower limit structure of the tower drum lifter provided by the embodiment of the application is as follows: during installation, the connecting bracket 3 can be installed at different positions of the elevator base plate 1 through the matching of the installation rod 31 and the installation groove 11, or a plurality of limit trigger assemblies 2 are arranged on the elevator base plate 1 at the same time, the sealing plate 5 for opening and closing the corresponding abdication hole 411 can be rotated, and the sealing plate 5 can be fixed in a magnetic attraction mode through the magnetic layer 51 and the attraction block 413.

Example 2:

The difference between the embodiment of the present application and the embodiment 1 is that, referring to fig. 6, a moving slot 412 is formed on the side wall of the yielding hole 411, the closing plate 5 is slidably connected in the moving slot 412, a long hole 415 is formed on the bottom wall of the moving slot 412, the length direction of the long hole 415 is parallel to the moving direction of the closing plate 5, a connecting piece for locking the position of the closing plate 5 is provided on the closing plate 5, and the specific connecting piece is a locking bolt 414 slidably connected in the long hole 415 and in threaded connection with the closing plate 5. After the closing plate 5 is moved, the position of the closing plate 5 can be locked by turning the locking bolt 414 so that the nut of the locking bolt 414 abuts against the moving plate 41.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. Lower limit structure of tower section of thick bamboo lift, its characterized in that: comprising

A plurality of mounting groove groups are formed in the lifter bottom plate (1);

The device comprises a limiting trigger assembly (2), wherein one end of the limiting trigger assembly (2) is rotationally connected with a connecting bracket (3), and the connecting bracket (3) is detachably connected with a bottom plate (1) of the lifter through a mounting groove group;

The lower profile assembly (4), the lower profile assembly (4) comprises a moving plate (41) which can move towards the direction close to or far away from the bottom plate (1) of the lifter, and the moving plate (41) is provided with abdication holes (411) with the same number as the mounting groove groups; when the limit trigger assembly (2) is connected with the lifter bottom plate (1), the bottom part penetrates out of the abdication hole (411);

the sealing plates (5), the sealing plates (5) are provided with a plurality of holes (411) which are in one-to-one correspondence with each other.

2. The tower elevator lower limit structure of claim 1, wherein: each group of installation groove groups comprises a plurality of installation grooves (11), locking grooves (111) are formed in the side walls of the installation grooves (11), an installation rod (31) used for being inserted into the installation grooves (11) is arranged on the top of the connecting support (3), locking strips (33) used for being inserted into the locking grooves (111) are connected to the installation rod (31) in a sliding mode, and fixing pieces (34) used for driving the locking strips (33) to move are arranged on the connecting support (3).

3. The tower elevator lower limit structure of claim 2, wherein: the fixing piece (34) comprises pushing strips (341) which slide in the plurality of mounting rods (31) simultaneously, inserting grooves (331) for inserting the pushing strips (341) are formed in the locking strips (33), guide surfaces (332) which are propped against the pushing strips (341) are arranged in the inserting grooves (331), and the locking strips (33) can be pushed to slide into the mounting rods (31) when the pushing strips (341) move in the direction close to the connecting support (3).

4. A tower elevator lower limit structure according to claim 3, wherein: a sliding groove (311) for the locking bar (33) to move and a reset groove (312) for the pushing bar (341) to slide are formed in the mounting bar (31), and a reset spring (313) is arranged between the locking bar (33) and the inner wall of the sliding groove (311).

5. The tower elevator lower limit structure of claim 1, wherein: the closing plate (5) is rotatably connected to the bottom of the moving plate (41) and is detachably connected with the moving plate (41).

6. The tower crane lower limit structure according to claim 5, wherein: the sealing plate (5) is provided with a magnetic layer (51), and the moving plate (41) is provided with an attracting block (413) which is detachably attracted through the magnetic layer (51) and the sealing plate (5).

7. The tower crane lower limit structure according to claim 6, wherein: the moving plate (41) is provided with the attraction block (413) on two opposite sides of the abdication hole (411).

8. The tower elevator lower limit structure of claim 1, wherein: the side wall of the abdication hole (411) is provided with a moving groove (412), the sealing plate (5) is slidably connected in the moving groove (412), and the sealing plate (5) is provided with a connecting piece for fixing the sealing plate (5).

9. The tower elevator lower limit structure of claim 8, wherein: the connecting piece is a locking bolt (414) which is connected with the closing plate (5) in a threaded mode, a long hole (415) for the locking bolt (414) to move is formed in the inner wall of the moving groove (412), and a nut of the locking bolt (414) is used for propping against the moving plate (41).