CN201761989U

CN201761989U - Anti-falling device of lifting equipment

Info

Publication number: CN201761989U
Application number: CN2010205112852U
Authority: CN
Inventors: 苏茂兵; 辛业勤; 彭学敏; 彭飞
Original assignee: Sichuan Huashan Construction Co Ltd
Current assignee: Sichuan Huashan Construction Co Ltd
Priority date: 2010-08-31
Filing date: 2010-08-31
Publication date: 2011-03-16
Anticipated expiration: 2020-08-31

Abstract

An anti-falling device of lifting equipment comprises an anti-falling trigger mechanism and a falling stop mechanism, which are adjacent, matched with each other and arranged on a lifting body capable of being lifted. A trigger body is arranged in the anti-falling trigger mechanism and matched with a lifting body in an up-and-down displacement manner through a guiding and positioning structure on the lifting body; a pulling structure connected with lifting pull equipment is arranged on the trigger body; the trigger body and the lifting body are equipped with trigger springs having an interval, as well as a transmission arm and a falling stop pushing arm which can be matched with the falling stop mechanism after hinged in sequence; a base with a through cavity, and a falling stop supporting structure which penetrates the through cavity of the base and the lifting body at the same time and is supported firmly, are arranged in the falling stop mechanism; a taper reducing structure is arranged above the through cavity of the base; and a movable wedge-shaped body, which can be in contact with the falling stop pushing arm in the anti-falling trigger mechanism and can be pushed to move up to wedge and lock the base and the supporting structure tightly, is arranged between the taper reducing structure and the supporting structure in a clearance fit manner. The device can effectively prevent the lifting body form falling by accident, and ensures the safety in construction, production, or operation and use.

Description

The falling proof device of jacking equipment

Technical field

The utility model relates to a kind of falling proof device that prevents the jacking equipment accidental falling.

Background technology

Prevent elevator machinery, jacking equipment (as the attached lifting scaffold in the building operation etc.) accidental falling, guarantee that construction operation safety and operation are used to give birth to safety, be elevator machinery industry research and the important topic of wishing to break through solution always.

In Chinese patent CN2316303Y, the utility model people had once proposed a kind of disconnected rope anti-fall device of vertical lift machinery, its basic structure and principle are to adopt in the moment that meets accident and fall, and hook the bracing frame that closes on by the anti-fall hook that discharges, and reach to stop the purpose of falling.Because when falling in elevator machinery and the jacking equipment, the running orbit of this anti-fall hook is determined inadequately, and lifting body all has very big quality usually, the impact energy that moment produces when falling is quite huge, in the anti-fall process to the hook and bracing frame all be destructive, not only hook and/or bracing frame are difficult to repeated usage, in case and the shock of a fall energy surpassed the limit of bearing of this anti-fall hook, still be difficult to avoid the generation of falling accident.

Summary of the invention

At above-mentioned situation, the utility model provides the falling proof device of all higher jacking equipment of a kind of safety and reliability.

The falling proof device of jacking equipment of the present utility model, its structure include under by the pulling down operation of equipment and can do on the lifting body of dipping and heaving, the anti-fall trigger mechanism and the falling stop body that are provided with and cooperate in adjacent mode, wherein:

In the anti-fall trigger mechanism, have one to trigger body through being fixed in guide-localization structure on the lifting body matching with lifting body along the mode of direction of improvement upper and lower displacement, lifting body is used for being arranged on the triggering body with pulling down equipment bonded assembly stretching structure, triggering between body and lifting body and be provided with the triggering spring, be connected with a transmission arm at the triggering body region that can match through first hinge with falling stop body, its free end is connected in the middle part of falling stop pushing arm through second hinge, lower end the 3rd hinge of falling stop pushing arm is connected with lifting body, and the upper end contacts with movable wedge set in the falling stop body and can make pushing tow and cooperates;

In the falling stop body, the pedestal that inside is provided with the up/down perforation cavity is fixed on the lifting body, be provided with a falling stop supporting construction that is solidly supported in perforation cavity and the lifting body mode that runs through pedestal simultaneously, the top that connects cavity in the pedestal is for being the structure of tapering undergauge to direction suitable for reading, below its conical surface with supporting construction between free-running fit have a opening to contact with the falling stop pushing arm in the above-mentioned anti-fall trigger mechanism by pedestal wall portion and thrusting action under, between the tapering undergauge structure of present intracoelomic cavity body and supporting construction with the movable wedge set of its wedging locking.

In the above-mentioned falling proof device, the triggering body in the said anti-fall trigger mechanism can be arranged on the top position of lifting body, also can be arranged on the lower position of lifting body.The top position that wherein is arranged on lifting body is more convenient, is a kind of optimal way.

In the said structure, guide-localization structure in said this anti-fall trigger mechanism, can adopt variety of ways such as the existing at present guide rail that uses, guide groove, wherein a kind of simpler mode can be adopted as one or many pilot bars that be arranged in parallel along the setting of lifting body lifting direction.

Triggering spring in the above-mentioned anti-fall trigger mechanism, purpose are for when normally lifting descending operation, can make to trigger between body and lifting body and can make appropriate separation mutually along this guide frame, and force this triggering spring to be in stressed state.Therefore should trigger spring and both can be the compression spring, also can be drawing spring.Serve as preferred wherein, can make structure more simple to adopt the compression spring.For example, one can be for reference embodiment in, when the guide-localization structure adopted along root pilot bar that lifting body lifting direction is provided with, this triggering spring can be adopted as the compression spring that is nested with on this pilot bar.And, the triggering body in the said anti-fall trigger mechanism no matter be arranged on lifting body above or below, all to adopt the compression spring more simple and convenient.

Falling stop supporting construction in the above-mentioned falling proof device in the said falling stop body is to stop the important structure fall, and is used to organize and supports and carry this lifting body that falls.Said being solidly supported comprises can also can being to be solidly supported in corresponding building or the first-class various ways of building body both by direct firm support on ground.

Further, for improving anti-fall effect, in above-mentioned falling stop body pedestal, structure place at the tapering undergauge of the supporting construction opposite side relative with this activity wedge set, can also connect or be provided with the auxiliary chock of making free-running fit with supporting construction, to cooperate, improve jointly and the wedging latching force of reinforcement and supporting construction with movable wedge set.

Test shows, when the moment that lifting body meets accident and falls, be that triggering body in the above-mentioned falling proof device is when losing the hoisting force of jacking equipment, suffered compressing power when triggering spring and also having lost normal lifting immediately, its elastic-restoring force make former be in immediately to draw close with lifting body downwards with the separated triggering body of lifting body contact, and its this immediately downward motion has also driven the connecting arm that connects thereon simultaneously and has moved downward, and promote its free end institute bonded assembly falling stop pushing arm, make the hinge outwards below swing of the latter around its below, and and then promote to be adjacent movable wedge set in the falling stop body of setting, make it be affixed to the falling stop supporting construction.Because this falling stop supporting construction firmly is held on ground or the building actionless, and pedestal that should activity wedge set place is to be fixed on to glide rapidly on the lifting body that falls, therefore its relative motion just can make movable wedge set immediately the tapering undergauge structure and the mutual wedging of supporting construction of pedestal inner chamber body be locked, thereby also immediately stop effectively and avoided lifting body to continue, avoid accident to take place, guaranteed the safety that construction, production or operation is used.When particularly the whole attached lifting scaffold that manipulation synchronously is provided with in flakes in the diverse location Heave Here respectively by some jacking equipments in as building operation descends operation, when accidental falling appears in a certain Heave Here, the above-mentioned falling proof device of the utility model not only can stop falling of this accident lifting body rapidly, can also make the normal lifting body of other each Heave Here also start falling proof device rapidly in succession and stop action, realize synchro control, avoid the generation or the continuity of more serious accident, further guaranteed safety.

Below in conjunction with the specific embodiment, foregoing of the present utility model is described in further detail again by the accompanying drawing illustrated embodiment.But this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following example.Do not breaking away under the above-mentioned technological thought situation of the utility model, various replacements or change according to ordinary skill knowledge and customary means are made all should be included in the scope of the present utility model.

Description of drawings

Fig. 1 is the structural representation of the stereoscopic-state of the utility model falling proof device.

Fig. 2 is the structural representation of the longitudinal profile of Fig. 1 device.

Fig. 3 is the view before the anti-fall startup of Fig. 2 device.

Fig. 4 is the structure for amplifying scheme drawing of the local A in Fig. 3 device.

Fig. 5 is the view after the anti-fall startup of Fig. 2 device.

Fig. 6 is the structure for amplifying scheme drawing of the local A in Fig. 5 device.

The specific embodiment

The falling proof device of the utility model jacking equipment illustrated in figures 1 and 2 includes anti-fall trigger mechanism A and the falling stop body B two parts of adjacent setting and cooperation on the lifting body 1 that can do dipping and heaving under by the pulling down operation of equipment.Wherein:

Anti-fall trigger mechanism A: have guide-localization structure 3, the one metal frame postures of many (among the figure being four) guide-localization rod-pulling types to trigger body 2 in lifting body 1 upper fixed and match with lifting body 1 making suitable mode along direction of improvement apart from upper and lower displacement through this guide-localization structure 3.The stretching structure 7 that pulling down equipment (electric block etc.) is used to drive the appropriate forms such as suspension ring of lifting body 1 lifting is arranged on and triggers body 2 tops.At the top 6 of each the guide-localization structure 3 that is fixed in lifting body 1 and trigger between the body 2, be equipped with compression respectively and trigger spring 4, and be nested with the position at this spring 4 of guide-localization structure 3 and be provided with corresponding outer tube 5.Match with falling stop body B and unify the position of side triggering body 2, be connected through the end of first hinge 8 with a transmission arm 9, its another free end then is connected in the middle part of a falling stop pushing arm 16 through second hinge 10; Lower end the 3rd hinge 15 of this falling stop pushing arm 16 is located by connecting with lifting body 1, and the upper end then contact with movable wedge set 11 among the falling stop body B and can do the pushing tow cooperation;

Among the falling stop body B, the pedestal 13 that has an inside to be provided with the up/down perforation cavity is arranged on the lifting body 1 with above-mentioned triggering body 2 adjacent fixed, wherein has perforation cavity once pedestal 13 to run through this pedestal 13 and lifting body 1 simultaneously and the supporting construction 12 of forms such as the falling stop strut bar of be solidly supported (or being supported on adjacent firm building or the building body) on the ground, post.Connect the top of cavity in this pedestal 13, for be the structure 14 of tapering undergauge to direction suitable for reading, below its conical surface and between this supporting construction 12, be combined with a movable wedge set 11 that can contact with this falling stop pushing arm 16 among the anti-fall trigger mechanism A in the gap mode by the opening of pedestal 13 corresponding side wall portions, at structure 14 places of the supporting construction relative 12 opposite side tapering undergauges, also be connected with one and make the auxiliary chock 18 of free-running fit with supporting construction 12 in modes such as welding with it.In anti-fall process, this activity wedge set 11 can be adjacent to supporting construction 12 by these falling stop pushing arm 16 pushing tows and under the tapering undergauge structure 14 of these pedestal 13 inner chamber body and auxiliary chock 18 cooperate, and with its mutual wedging locking, the continuation that reaches prevention lifting body 1 is fallen downwards between the supporting construction 12.

Fig. 3 and Fig. 4 are the normal conditions when above-mentioned falling proof device does not start in normal lifting process.When jacking equipment rises by the 7 pulling lifting bodies 1 of the stretching structure on the triggering body 2 among the anti-fall trigger mechanism A, triggering body 2 is also upwards moved along guide-localization structure 3, trigger between body 2 and the lifting body 1 and maintain space 17 (as shown in Figure 3), also compression triggers spring 4 and makes it to be in compressed state simultaneously.Move on the triggering body 2 and drive transmission arm 9 simultaneously, reclaim by second hinge, 10 pulling falling stop pushing arms 16, make movable wedge set 11 contact matching among its pushing end disengaging and the falling stop body B, this activity wedge set 11 does not also contact with supporting construction 12, does not influence the normal vertical motion of lifting body.

Fig. 5 and Fig. 6 are lifting bodies at the falling stop state that meets accident when falling that moment, above-mentioned falling proof device was activated.When falling, the stretching structure 7 that triggers on the body 2 has lost the power that normally lifts that makes progress, after this triggering spring 4 that is in confined state under the former normal condition also loses compressive force, the elastic acting force of Shi Fanging can immediately promote to trigger body 2 and move down by triggering the space 17 between body 2 and the lifting body 1 immediately.Trigger moving down of body 2 and drive transmission arm 9 simultaneously and move down, and promote falling stop pushing arms 16, make its pushing end enter the cavity in the pedestal 13 among the falling stop body B, contact with this activity wedge set 11 and push supporting construction 12 to, the two is adjacent to mutually by second hinge 10; Pedestal 13 moves down along supporting construction 12 among the falling stop body B and the while of falling of lifting body 1 has also driven, and this tapering undergauge structure 14 of pedestal 13 upper oral parts is also immediately contacted with the cooperation inclined-plane of this activity wedge set 11, and 14 on this tapering undergauge structure of supporting construction 12 and pedestal 13 upper oral parts is locked by these activity wedge set 11 wedgings immediately, can't continue to glide and fall.

Claims

1. the falling proof device of jacking equipment is characterized in that being included in anti-fall trigger mechanism (A) and the falling stop body (B) of being gone up adjacent setting and cooperation by the lifting body (1) that can do dipping and heaving under the pulling down operation of equipment, wherein:

In the anti-fall trigger mechanism (A), have one to trigger body (2) through being fixed in guide-localization structure (3) on the lifting body (1) matching with lifting body (1) along the mode of direction of improvement upper and lower displacement, lifting body (1) is used for being arranged on triggering body (2) with pulling down equipment bonded assembly stretching structure (7), triggering between body (2) and lifting body (1) and be provided with triggering spring (4), be connected with a transmission arm (9) at triggering body (2) position first hinge (8) that can match with falling stop body, its free end is connected in the middle part of falling stop pushing arm (16) through second hinge (10), lower end the 3rd hinge (15) of falling stop pushing arm (16) is connected with lifting body (1), and the upper end contacts with movable wedge set (11) in the falling stop body (B) and can make pushing tow and cooperates;

In the falling stop body (B), the pedestal (13) that inside is provided with the up/down perforation cavity is fixed on the lifting body (1), be provided with a falling stop supporting construction (12) that is solidly supported in perforation cavity and lifting body (1) mode that runs through pedestal (13) simultaneously, the top that connects cavity in the pedestal (13) is for being the structure (14) of tapering undergauge to direction suitable for reading, below its conical surface with supporting construction (12) between free-running fit have a opening to contact with the falling stop pushing arm (16) in the anti-fall trigger mechanism (A) by pedestal (13) wall portion and thrusting action under, the movable wedge set (11) that between the tapering undergauge structure (14) of pedestal (13) inner chamber body and supporting construction (12), its wedging is locked.

2. the falling proof device of jacking equipment as claimed in claim 1 is characterized in that the triggering body (2) in the said anti-fall trigger mechanism (A) is arranged on the top position of lifting body (1).

3. the falling proof device of jacking equipment as claimed in claim 1 is characterized in that at least one piece pilot bar of guide-localization structure (3) for being provided with along lifting body (1) lifting direction in the said anti-fall trigger mechanism (A).

4. the falling proof device of jacking equipment as claimed in claim 1 is characterized in that the triggering spring (4) in the said anti-fall trigger mechanism (A) is the compression spring.

5. the falling proof device of jacking equipment as claimed in claim 3 is characterized in that the triggering spring (4) in the said anti-fall trigger mechanism (A) is the compression spring that is nested with on said pilot bar.

6. as the falling proof device of the described jacking equipment of one of claim 1 to 5, it is characterized in that in the pedestal (13) of said falling stop body (B), locate also to be connected with the auxiliary chock (18) of making free-running fit with supporting construction (12) in the structure (14) of the tapering undergauge of supporting construction (12) opposite side relative with movable wedge set (11).

7. as the falling proof device of the described jacking equipment of one of claim 1 to 5, it is characterized in that falling stop supporting construction (12) in the said falling stop body (B) by firm support on ground.

8. as the falling proof device of the described jacking equipment of one of claim 1 to 5, it is characterized in that falling stop supporting construction (12) in the said falling stop body (B) by firm support on building.