CN213569278U

CN213569278U - Hydraulic spring type backward tilting prevention device of movable arm tower crane

Info

Publication number: CN213569278U
Application number: CN202022707891.8U
Authority: CN
Inventors: 陈萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-21
Filing date: 2020-11-21
Publication date: 2021-06-29
Anticipated expiration: 2030-11-21

Abstract

The utility model discloses a movable arm tower crane's hydraulic spring prevents hypsokinesis device, protection machanism is including supporting flat board, first fixed plate, first contact, bee calling organ and knee, support dull and stereotyped bottom fixedly connected with spacing spring, one side fixedly connected with push rod of first fixed plate, the utility model relates to a hoist technical field. This hypsokinesis device is prevented to movable arm tower crane's hydraulic spring, second contact and first contact each other when the hydraulic spring body receives the limit, make bee calling organ send the warning and remind the user, and simultaneously, the effect of dragging of push down effect and pulling spring at spacing spring, can alleviate the fracture degree between hydraulic spring body and the fixed part, solved current crane swing arm and can exert slant ascending thrust to preventing the hypsokinesis device, lead to preventing that the junction between hypsokinesis device and the hoist from taking place the fracture easily, the problem of threat is caused to the safe handling of hoist.

Description

Hydraulic spring type backward tilting prevention device of movable arm tower crane

Technical Field

The utility model relates to a hoist technical field specifically is a movable arm tower crane's hydraulic spring prevents hypsokinesis device.

Background

The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. Also known as crown blocks, navigation cranes and cranes. The tyre crane has the main characteristics that the driving cab and the hoisting control cab are integrated into a whole and are formed by evolving a crawler crane (crawler crane), the crawler and the walking bracket of the walking mechanism are changed into a chassis with tyres, the defect that a crawler plate of the crawler crane (crawler crane) damages the road surface is overcome, and the tyre crane belongs to material handling machinery. The bridge crane is a hoisting device which is transversely arranged above workshops, warehouses and stockyards to hoist materials. Since its two ends are seated on a tall concrete column or a metal bracket, it is shaped like a bridge. The bridge frame of the bridge crane runs longitudinally along the rails laid on the elevated frames at two sides, so that the space below the bridge frame can be fully utilized to hoist materials without being hindered by ground equipment. The lifting machine has the widest application range and the largest quantity.

Present luffing jib tower crane prevents hypsokinesis device mainly has two effects, one of which prevents that the jib loading boom from toppling over backward at the amplitude of fluctuation in-process, and its two, solve the rigidity or the great impact problem of rigidity that exist between jib loading boom and the top of the tower, when carrying out interact between current hypsokinesis device of preventing and the crane swing arm, the crane swing arm can exert oblique ascending thrust to preventing hypsokinesis device, lead to preventing that the junction between hypsokinesis device and the crane takes place the fracture easily, cause the threat to the safe handling of crane, consequently, the utility model provides a hypsokinesis device is prevented to luffing jib tower crane's hydraulic spring to solve the problem mentioned above.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a hypsokinesis device is prevented to movable arm tower crane's hydraulic spring has solved current crane swing arm and can exert oblique ascending thrust to preventing the hypsokinesis device, leads to preventing that the junction between hypsokinesis device and the crane from taking place the fracture easily, leads to the problem that causes the threat to the safe handling of crane.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a back-tipping prevention device of hydraulic spring of luffing jib tower crane, includes fixed part and hydraulic spring body, one side of hydraulic spring body is provided with the buffer, be provided with protection machanism on the hydraulic spring body.

Protection machanism is including supporting dull and stereotyped, first fixed plate, first contact, bee calling organ and knee, support dull and stereotyped bottom fixedly connected with spacing spring, one side fixedly connected with push rod of first fixed plate, the one end fixedly connected with second contact of push rod, the one end fixedly connected with recess board of knee, the top fixedly connected with pulling spring of recess board inner chamber.

Preferably, one side of the supporting plate is fixedly connected with one side of the fixing part, and the bottom end of the limiting spring is fixedly connected with the top of the hydraulic spring body.

Preferably, one side of the fixing portion and the position below the hydraulic spring body are provided with a groove, the first contact piece is fixedly connected to the inside of the groove, the bottom of the hydraulic spring body is fixedly connected with a second fixing plate, and one end of the push rod penetrates through the second fixing plate and extends to the outside of the second fixing plate.

Preferably, the buzzer is fixedly connected to the top of the hydraulic spring body, and the top of the first fixing plate is fixedly connected to the bottom of the hydraulic spring body.

Preferably, the other end of the bent rod is fixedly connected with one side of the fixing part, and the top of the pulling spring is fixedly connected with the bottom of the hydraulic spring body.

Preferably, the outer surface of the second contact piece is matched with the inside of the groove, and the top of the groove plate is in contact with the bottom of the hydraulic spring body.

Advantageous effects

The utility model provides a hypsokinesis device is prevented to luffing jib tower crane's hydraulic spring. Compared with the prior art, the method has the following beneficial effects:

(1) the hydraulic spring type anti-backward tilting device of the movable arm tower crane comprises a support flat plate, a first fixing plate, a first contact piece, a buzzer and a bent rod, wherein the bottom of the support flat plate is fixedly connected with a limiting spring, one side of the first fixing plate is fixedly connected with a push rod, one end of the push rod is fixedly connected with a second contact piece, one end of the bent rod is fixedly connected with a groove plate, the top of the inner cavity of the groove plate is fixedly connected with a pulling spring, and the second contact piece is in contact with the first contact piece when the hydraulic spring body is limited, so that the buzzer gives an alarm to remind a user, and simultaneously, the cracking degree between the hydraulic spring body and the fixing part can be relieved under the pushing action of the limiting spring and the pulling action of the pulling spring, the problem of current crane swing arm can exert oblique ascending thrust to preventing hypsokinesis device, lead to preventing that the junction between hypsokinesis device and the crane from taking place the fracture easily, cause the threat to the safe handling of crane is solved.

(2) This movable arm tower crane's hydraulic spring prevents hypsokinesis device, set up flutedly through the below that just is located the hydraulic spring body in one side of fixed part, first contact fixed connection is in the inside of recess, the bottom fixedly connected with second fixed plate of hydraulic spring body, the one end of push rod runs through the second fixed plate and extends to the outside of second fixed plate, through setting up the second fixed plate, can effectually carry out the supporting role to the push rod, set up the recess, can conveniently install first contact, prevent external collision with its damage.

Drawings

Fig. 1 is a front view of the external structure of the present invention;

fig. 2 is a partial cross-sectional view taken at a in fig. 1 according to the present invention;

fig. 3 is a bottom view of the external structure of the hydraulic spring body of the present invention;

fig. 4 is a side view of the external structure of the groove plate of the present invention.

In the figure: the hydraulic buffer comprises a fixed part 1, a hydraulic spring body 2, a buffer 3, a protection mechanism 4, a supporting flat plate 401, a first fixing plate 402, a first contact piece 403, a buzzer 404, a bent rod 405, a limiting spring 406, a push rod 407, a second contact piece 408, a groove plate 409, a pulling spring 410, a groove 5 and a second fixing plate 6.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a hydraulic spring type anti-backward-tilting device of a movable arm tower crane comprises a fixing part 1 and a hydraulic spring body 2, wherein a groove 5 is formed in one side of the fixing part 1 and located below the hydraulic spring body 2, a first contact piece 403 is fixedly connected inside the groove 5, a second fixing plate 6 is fixedly connected to the bottom of the hydraulic spring body 2, one end of a push rod 407 penetrates through the second fixing plate 6 and extends to the outside of the second fixing plate 6, the push rod 407 can be effectively supported by the arrangement of the second fixing plate 6, the groove 5 is formed, the first contact piece 403 can be conveniently installed and prevented from being damaged by external collision, a buffer 3 is arranged on one side of the hydraulic spring body 2, and a protection mechanism 4 is arranged on the hydraulic spring body 2; the protection mechanism 4 comprises a support flat plate 401, a first fixing plate 402, a first contact piece 403, a buzzer 404 and a bent rod 405, the other end of the bent rod 405 is fixedly connected with one side of a fixing part 1, the top of a pulling spring 410 is fixedly connected with the bottom of a hydraulic spring body 2, the buzzer 404 is fixedly connected with the top of the hydraulic spring body 2, the top of the first fixing plate 402 is fixedly connected with the bottom of the hydraulic spring body 2, one side of the support flat plate 401 is fixedly connected with one side of the fixing part 1, the bottom end of a limiting spring 406 is fixedly connected with the top of the hydraulic spring body 2, the bottom of the support flat plate 401 is fixedly connected with a limiting spring 406, one side of the first fixing plate 402 is fixedly connected with a push rod 407, one end of the push rod 407 is fixedly connected with a second contact piece 408, the outer surface of the second contact piece 408 is matched with the inside of a groove 5, and the, one end of the bent rod 405 is fixedly connected with a groove plate 409, the top of the inner cavity of the groove plate 409 is fixedly connected with a pulling spring 410, through the cooperation of the flat supporting plate 401, the first fixing plate 402, the first contact 403, the buzzer 404, the bent rod 405, the limit spring 406, the push rod 407, the second contact 408, the groove plate 409 and the pull spring 410, when the hydraulic spring body 2 is limited, the second contact piece 408 and the first contact piece 403 contact with each other, so that the buzzer 404 gives an alarm to remind the user, and at the same time, the effect of pulling at spacing spring 406's under push effect and pulling spring 410 can alleviate the fracture degree between hydraulic spring body 2 and the fixed part 1, has solved current crane swing arm and can exert oblique ascending thrust to preventing the hypsokinesis device, leads to preventing the easy emergence fracture of junction between hypsokinesis device and the hoist, leads to the problem that causes the threat to the safe handling of hoist.

And those not described in detail in this specification are well within the skill of those in the art.

In operation, when the swing arm of the crane tilts backwards, the hydraulic spring body 2 and the buffer 3 are used for pushing the swing arm of the crane, the thrust of the hydraulic spring body 2 has a limit value, so that the backward tilting angle of the swing arm of the crane has a limit value, when the backward tilting angle of the swing arm of the crane reaches the limit value, at this time, the push rod 407 slides in the second fixing plate 6 under the action of the hydraulic spring body 2 and the first fixing plate 402, so as to drive the second contact 408 to move, so that the second contact 408 is in contact with the first contact 403, so as to enable the buzzer 404 to give an alarm to remind a user, meanwhile, when the backward tilting prevention device interacts with the swing arm of the crane, the swing arm of the crane exerts an upward oblique thrust on the backward tilting prevention device, so that the hydraulic spring body 2 is pressed downwards under the pushing action of the limiting spring 406 and the pulling action of the pulling spring 410, the hydraulic spring body 2 is pulled by the pulling spring 410, and the degree of cracking between the hydraulic spring body 2 and the fixing portion 1 can be alleviated.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "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.

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

1. The utility model provides a luffing jib tower crane's hydraulic spring prevents hypsokinesis device, includes fixed part (1) and hydraulic spring body (2), its characterized in that: a buffer (3) is arranged on one side of the hydraulic spring body (2), and a protection mechanism (4) is arranged on the hydraulic spring body (2);

protection machanism (4) are including supporting dull and stereotyped (401), first fixed plate (402), first contact (403), bee calling organ (404) and curved bar (405), support the spacing spring of bottom fixedly connected with (406) of dull and stereotyped (401), one side fixedly connected with push rod (407) of first fixed plate (402), the one end fixedly connected with second contact (408) of push rod (407), the one end fixedly connected with recess board (409) of curved bar (405), the top fixedly connected with pulling spring (410) of recess board (409) inner chamber.

2. The hydraulic spring type backward tilting prevention device of a luffing tower crane according to claim 1, characterized in that: one side of the support flat plate (401) is fixedly connected with one side of the fixing part (1), and the bottom end of the limiting spring (406) is fixedly connected with the top of the hydraulic spring body (2).

3. The hydraulic spring type backward tilting prevention device of a luffing tower crane according to claim 1, characterized in that: one side of fixed part (1) and the below that is located hydraulic spring body (2) is seted up fluted (5), first contact (403) fixed connection is in the inside of recess (5), the bottom fixedly connected with second fixed plate (6) of hydraulic spring body (2), the one end of push rod (407) runs through second fixed plate (6) and extends to the outside of second fixed plate (6).

4. The hydraulic spring type backward tilting prevention device of a luffing tower crane according to claim 1, characterized in that: the buzzer (404) is fixedly connected to the top of the hydraulic spring body (2), and the top of the first fixing plate (402) is fixedly connected with the bottom of the hydraulic spring body (2).

5. The hydraulic spring type backward tilting prevention device of a luffing tower crane according to claim 1, characterized in that: the other end of the bent rod (405) is fixedly connected with one side of the fixing part (1), and the top of the pulling spring (410) is fixedly connected with the bottom of the hydraulic spring body (2).

6. The hydraulic spring type backward tilting prevention device of a luffing tower crane according to claim 1, characterized in that: the outer surface of the second contact piece (408) is matched with the inside of the groove (5), and the top of the groove plate (409) is contacted with the bottom of the hydraulic spring body (2).