CN202379555U

CN202379555U - Centrifugal triggering type safety lock

Info

Publication number: CN202379555U
Application number: CN2011205169681U
Authority: CN
Inventors: 邱志鹏
Original assignee: JIANGYIN CITY LUDA MACHINERY MANUFACTURING Co Ltd
Current assignee: JIANGYIN CITY LUDA MACHINERY MANUFACTURING Co Ltd
Priority date: 2011-12-10
Filing date: 2011-12-10
Publication date: 2012-08-15
Anticipated expiration: 2021-12-10

Abstract

The utility model relates to a centrifugal triggering type safety lock. The safety lock comprises a housing (1), a centrifugal triggering mechanism (2) and a clamping mechanism (3), wherein the centrifugal triggering mechanism (2) comprises a pressure rope pulley (2.1) and a flail block rope pulley (2.2), a connecting plate (2.4) and a position-limiting plate (2.5) are sheathed and connected at one end of a rope pulley rotating shaft (2.3), which is positioned outside the housing (1), two flail blocks (2.8) are arranged between the connecting plate (2.4) and the position-limiting plate (2.5), rabbets are arranged on the outer sides of the flail blocks (2.8), a shifting fork rod (2.10) is articulated on the outer wall of a front plate of the housing (1) through a shifting shaft (2.14), a clamping rod (2.11) is articulated at one end of the shifting shaft (2.14), which is positioned in the housing (1), the free end of the clamping rod (2.11) is clamped on a sleeve plate (3.1) of the clamping mechanism (3), the free end of the shifting fork rod (2.10) is dead against the rabbets of the flail blocks (2.8). The centrifugal triggering type safety lock disclosed by the utility model has the advantages of sensitivity in triggering and high loading capacity.

Description

Centrifugal trigger-type safety lock

Technical field

The utility model relates to a kind of safety lock, especially relates to utilizing centnifugal force to carry out the safety lock that initiatively triggers.

Background technology

At present, on high-altitude preparation of construction such as hanging basket, all need install the anti-fall equipment of safety additional,, prevent unexpected tenesmus accident to increase safety performance.Like a kind of " the swing arm type safety lock " that Chinese patent 02217699.3 is announced, it adopts cage plate, rope clamp to realize clamping function, and is simple and practical; But its triggering mode underaction is easy to generate maloperation; For example when cooperating between safe steel rope and the load cable when not enough, the load cable fracture takes place easily and dangerous situation that clamping mechanism still is not triggered; The safe steel rope of extra interpolation simultaneously also can't provide enough load-carrying capacitys.

Summary of the invention

The purpose of the utility model is to overcome above-mentioned deficiency, and a kind of sensitivity, centrifugal trigger-type safety lock that load-carrying capacity is high of triggering is provided.

The purpose of the utility model is achieved in that a kind of centrifugal trigger-type safety lock, and said safety lock includes housing, centrifugal trigger mechanism and clamping mechanism, and said clamping mechanism includes two cage plates, two rope clamps and spring; One end of two cage plates all is articulated between the header board and back plate of housing; The other end all offers through hole, this through hole by about two semi-circular through hole are staggered up and down combines, be provided with semicircle projection on two rope clamps; And should insert in the semi-circular through hole of cage plate by the semicircle projection; Load cable is between two rope clamps, and said spring one end links to each other with housing, and the other end links to each other with cage plate;

Said centrifugal trigger mechanism includes press rope wheel and gets rid of the piece rope sheave, said press rope wheel and getting rid of between the header board and back plate that the piece rope sheave all is arranged at housing, and load cable is at press rope wheel with get rid of between the piece rope sheave; The header board of housing is passed in said rope sheave rotating shaft of getting rid of the piece rope sheave; This rope sheave rotating shaft is positioned to be set with to be connected with on the outer end of housing wins in succession and positioning plate, and the two ends of said positioning plate are provided with sliding tray, win in succession and positioning plate between be provided with two and get rid of piece; Said arranged outside of getting rid of piece has seam; Get rid of piece one end and be hinged with winning in succession, the other end is inserted in sliding tray through pin, and continuous through extension spring between two pins; Be hinged with a shifting fork bar through dial axis on the header board outer wall of said housing; And this dial axis is positioned on the end of housing and is hinged with a screens bar, and the free end of said screens bar is placed on the cage plate of clamping mechanism, and the free end of said shifting fork bar is over against the seam that gets rid of piece.

The centrifugal trigger-type safety lock of the utility model, the left side of said shifting fork bar is provided with a fixing pin, and the end that said shifting fork bar is articulated in dial axis is provided with a torsion spring to the right.

The centrifugal trigger-type safety lock of the utility model, the cage plate of said clamping mechanism is provided with a gap, and the free end of said screens bar is placed on this gap.

Compared with prior art, the beneficial effect of the utility model is:

The utility model has changed the triggering mode in " swing arm type safety lock " patent, utilizes centrifugation to trigger, and is more simple, and it is also better to trigger effect, helps to improve the safety performance of safety lock; Owing to be not equipped with safe steel rope in addition, utilize load cable can realize triggering, thereby not only strengthened load-carrying capacity, and improved trigger sensitivity simultaneously at needs; And than traditional safety lock, the utility model has strengthened the dimensional structure of cage plate rope clamp in the clamping mechanism, thereby makes the rated load of the utility model increase greatly.

Description of drawings

Fig. 1 is the lateral cross section cutaway view of the centrifugal trigger-type safety lock of the utility model.

Fig. 2 is the longitudinal cross-section cutaway view of the centrifugal trigger-type safety lock of the utility model.

Fig. 3 is the structural representation of the centrifugal trigger mechanism of the centrifugal trigger-type safety lock of the utility model.

Wherein:

Housing 1, centrifugal trigger mechanism 2, clamping mechanism 3;

Press rope wheel 2.1, get rid of piece rope sheave 2.2, rope sheave rotating shaft 2.3, win 2.4 in succession, positioning plate 2.5, sliding tray 2.6, pin 2.7, get rid of piece 2.8, extension spring 2.9, shifting fork bar 2.10, screens bar 2.11, fixing pin 2.12, torsion spring 2.13, dial axis 2.14;

Cage plate 3.1, rope clamp 3.2, spring 3.3.

The specific embodiment

Referring to Fig. 1 ~ 3; A kind of centrifugal trigger-type safety lock that the utility model relates to, said safety lock includes housing 1, centrifugal trigger mechanism 2 and clamping mechanism 3, and said clamping mechanism 3 includes two cage plates 3.1, two rope clamps 3.2 and springs 3.3; One end of two cage plates 3.1 all is articulated between the header board and back plate of housing 1; The other end all offers through hole, this through hole by about two semi-circular through hole are staggered up and down combines, be provided with semicircle projection on two rope clamps 3.2; And should insert in the semi-circular through hole of cage plate 3.1 by the semicircle projection; Load cable is between two rope clamps 3.2, and said spring 3.3 1 ends link to each other with housing 1, and the other end links to each other with cage plate 3.1;

Said centrifugal trigger mechanism 2 includes press rope wheel 2.1 and gets rid of piece rope sheave 2.2; Said press rope wheel 2.1 and get rid of piece rope sheave 2.2 all be arranged at housing 1 header board and the back plate between; And load cable is at press rope wheel 2.1 and get rid of between the piece rope sheave 2.2, and the header board of housing 1 is passed in said rope sheave rotating shaft 2.3 of getting rid of piece rope sheave 2.2, this rope sheave rotating shaft 2.3 be positioned at be set with on the outer end of housing 1 be connected with win in succession 2.4 with positioning plate 2.5; The two ends of said positioning plate 2.5 are provided with sliding tray 2.6; Win in succession 2.4 and positioning plate 2.5 between be provided with two and get rid of piece 2.8, said arranged outside of getting rid of piece 2.8 has seam, gets rid of piece 2.8 1 ends and 2.4 is hinged with winning in succession; The other end is inserted in sliding tray 2.6 through pin 2.7; And link to each other through extension spring 2.9 between two pins 2.7, be hinged with a shifting fork bar 2.10 through dial axis 2.14 on the header board outer wall of said housing 1, and this dial axis 2.14 is positioned on the end of housing 1 and is hinged with a screens bar 2.11; The free end of said screens bar 2.11 is placed on the cage plate 3.1 of clamping mechanism 3; The left side of said shifting fork bar 2.10 is provided with a fixing pin 2.12, and the end that said shifting fork bar 2.10 is articulated in dial axis 2.14 is provided with a torsion spring 2.13 to the right, and the other end is over against the seam that gets rid of piece 2.8.

Principle of work:

When the centrifugal trigger-type safety lock of the utility model during along the load cable upward movement; Rope sheave rotating shaft 2.3 drives gets rid of piece 2.8 and does and rotate counterclockwise (being the visual angle with Fig. 3); At this moment; Outwards throw away with shifting fork bar 2.10 and bump even if get rid of piece 2.8, because the existence of fixing pin 2.12, shifting fork bar 2.10 can not be triggered yet;

When the centrifugal trigger-type safety lock of utility model when load cable moves downward, rope sheave rotating shaft 2.3 drives gets rid of piece 2.8 and does and clockwise rotate, rope sheave rotating shaft 2.3 drives gets rid of piece 2.8 and thinks outer throwing away; When the speed of fall degree is lower than design speed; Get rid of piece 2.8 and can not bump with shifting fork bar 2.10, when meeting or exceeding design speed, the seam and the shifting fork bar 2.10 that get rid of piece 2.8 bump; Make shifting fork bar 2.10 do the conter clockwise motion; Break away from cage plate 3.1 thereby drive screens bar 2.11, at this moment, clamping mechanism 3 is triggered immediately; The cw upward movement is (simultaneously immediately for cage plate 3.1; Under the effect of spring 3.3, quicken upward movement), thus drive two rope clamp 3.2 move toward one another in suit and its semi-circular through hole; To be arranged between two rope clamps 3.2 load cable and hold tightly firmly, thereby stop decline.

Claims

1. centrifugal trigger-type safety lock; Said safety lock includes housing (1), centrifugal trigger mechanism (2) and clamping mechanism (3); Said clamping mechanism (3) includes two cage plates (3.1), two rope clamps (3.2) and spring (3.3), and an end of two cage plates (3.1) all is articulated between the header board and back plate of housing (1), and the other end all offers through hole; This through hole by about two semi-circular through hole are staggered up and down combines; Be provided with semicircle projection on two rope clamps (3.2), and should insert in the semi-circular through hole of cage plate (3.1) by the semicircle projection, load cable is positioned between two rope clamps (3.2); Said spring (3.3) one ends link to each other with housing (1), and the other end links to each other with cage plate (3.1); It is characterized in that:

Said centrifugal trigger mechanism (2) includes press rope wheel (2.1) and gets rid of piece rope sheave (2.2); Said press rope wheel (2.1) and get rid of piece rope sheave (2.2) all be arranged at housing (1) header board and the back plate between; And load cable is positioned at press rope wheel (2.1) and gets rid of between the piece rope sheave (2.2); The header board of housing (1) is passed in said rope sheave rotating shaft (2.3) of getting rid of piece rope sheave (2.2); This rope sheave rotating shaft (2.3) is positioned to be set with to be connected with on the outer end of housing (1) wins in succession (2.4) and positioning plate (2.5), and the two ends of said positioning plate (2.5) are provided with sliding tray (2.6), wins in succession to be provided with two between (2.4) and the positioning plate (2.5) and to get rid of piece (2.8); Said arranged outside of getting rid of piece (2.8) has seam; Get rid of piece (2.8) one ends and be hinged with win in succession (2.4), the other end is inserted in sliding tray (2.6) through pin (2.7), and links to each other through extension spring (2.9) between two pins (2.7); Be hinged with a shifting fork bar (2.10) through dial axis (2.14) on the header board outer wall of said housing (1); And this dial axis (2.14) is positioned on the end of housing (1) and is hinged with a screens bar (2.11), and the free end of said screens bar (2.11) is placed on the cage plate (3.1) of clamping mechanism (3), and the free end of said shifting fork bar (2.10) is over against the seam that gets rid of piece (2.8).

2. a kind of according to claim 1 centrifugal trigger-type safety lock; It is characterized in that: the left side of said shifting fork bar (2.10) is provided with a fixing pin (2.12), and the end that said shifting fork bar (2.10) is articulated in dial axis (2.14) is provided with a torsion spring (2.13) to the right.

3. a kind of according to claim 1 or claim 2 centrifugal trigger-type safety lock is characterized in that: the cage plate (3.1) of said clamping mechanism (3) is provided with a gap, and the free end of said screens bar (2.11) is placed on this gap.