CN2401642Y

CN2401642Y - Safety positioning quick clamping fastener

Info

Publication number: CN2401642Y
Application number: CN 99255862
Authority: CN
Inventors: 赵典福
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-12-10
Filing date: 1999-12-10
Publication date: 2000-10-18
Anticipated expiration: 2009-12-10

Abstract

The utility model relates to a safety positioning quick clamping fastener, comprising a seat body and a cover plate. One end of the cover plate is movably connected with the seat body through a pin, the other end is provided with a T-shaped draw rod, and a concave wheel shaft which is provided with a semicircular concave wheel at the middle part passes through a hole at the bottom part of the draw rod, so that a tightening structure between the draw rod and the concave wheel shaft can be formed. A positioning dummy club which is arranged at one end of the concave wheel shaft is matched with a positioning dummy club which is arranged on the seat body, so that the utility model can have very reliable self-locking and positioning functions, and accordingly, the fastener and an entire frame body can be ensured to be safe and durable. The cover plate is matched with a reinforcing rib which is as wide as the cover plate, so that the mechanical performance and the strength of the cover plate can be enhanced. The utility model has a right-angled form, a rotary form and a butt-joint form, and is suitable for mounting and dismounting a scaffold for construction.

Description

The fast clamp jaws in safety location

The utility model relates to a kind of fastener for building, especially a kind of fastener that the pipe fitting of building scaffold is locked safely and fast or dismantled.

At present, the fastening clip of steel pipe scaffold mainly is to utilize the screw bolt and nut securing member in the building trade, and its installation and removal are time-consuming, effort, and not only labour intensity is big, and fastening uniformity coefficient is inhomogeneous between the steel pipe of scaffold, and safety factor is lower.Because the workman is wrenched inhomogeneous that nut exerts oneself, often cause fastening clip damage or landing, even the accident that meets accident.The rate of reusing of existing its old fastener of fastening structure is low, the maintenance cost height.

The purpose of this utility model is: provides a kind of safety location fast clamp jaws, but makes its lock-bit simple in structure, and safe and reliable, the installation and removal convenient power-saving, reusable, long service life.

The technical scheme that realizes the utility model purpose is as follows: locate in the fast clamp jaws in a kind of safety with pedestal and cover plate, one end of cover plate flexibly connects by pin and pedestal, the other end of cover plate is JiongZi Xing, on Jiong type shape end dual-side, all have some lid teeth, the centre of dual-side is provided with a pull bar, the inner face of pull bar is the V-type inclined-plane, and the head of pull bar is in the horizontal lid tooth that hangs over dual-side of T type.The bottom of the pull bar master identical with T connector portion wears a recessed wheel shaft to having a hole in the hole, form recessed wheel shaft and pull bar fastening structure.Be equipped with latch fitting on two end faces of recessed wheel shaft, an end of recessed wheel shaft has spring flange, and the other end has positioning boss.To be that semicircle is recessed take turns in the position that the centre of recessed wheel shaft is positioned at tie rod hole, and the recessed width of taking turns of semicircle is greater than the width of pull bar.

Have safe positioning boss on pedestal, when the position of this positioning boss should make recessed wheel shaft Rotate 180 °, the boss on the recessed wheel shaft just withstood the safe positioning boss on the pedestal.

The utility model safety is located fast clamp jaws and is comprised two right-angle couplers that are the pipe fitting of square crossing of connection, connect two be positioned at same the pipe fitting on the axis to clasp and connect two three kinds of patterns of rotary buckle that are the pipe fitting of any intersection, for right angle, butt joint and three kinds of fasteners of rotation, have the recessed wheel shaft and the pull bar fastening structure of relevant position and quantity separately respectively.

Because adopt technique scheme, the utility model safety is located fast clamp jaws and is had following advantage and positive effect:

1, compared with prior art, the utility model is not with securing members such as bolt and nut locking pipe fitting, but comes fastening with the recessed wheel shaft and the Tiebar structure that are installed on the pedestal.When cover plate is depressed, T type pull bar hangs on the lid tooth of cover plate one end, when making recessed wheel shaft rotate 180 ° by pulling latch fitting on the recessed wheel axle end surface, the T connector portion that the recessed concave surface facing of taking turns of semicircle in the middle of the recessed wheel shaft pull bar, and the complete axial length that recessed wheel shaft does not fall in is partly withstood the hole wall of T type pull bar bottom, pull bar can not be moved, the locking cover plate.Otherwise if opposite spin latch fitting, when making 180 ° of recessed wheel shaft counter-rotation, semicircle concave surface in the middle of the recessed wheel shaft is back to the T connector portion of pull bar, at this moment, do not contact between the hole wall of T type pull bar bottom and semicircle concave surface, one spacing is arranged, because recessed width of taking turns greater than the width of pull bar, makes pull bar be able to outwards move in concave surface, pulls out from the lid tooth, thereby cover plate is lifted, and fastener is removed.Recessed wheel shaft of the present utility model and Tiebar structure are simply compact, install and remove only to need latch fitting pulled to get final product every pair of fastening speed of fastener≤6 seconds, dismounting speed≤3 second, need about 1 minute speed to compare with bolt nut structure, much quick, much also laborsaving.Simultaneously the utility model structure does not have separation member, can not lose by production part in the use, and the proportion of goods damageds are extremely low, parts repeat usage height, and the long service life of fastener is equivalent to life-span of steel pipe.

2, be provided with automatic locking positioning device in the utility model structure, play safe positioning action, can guarantee the moving accurate Rotate 180 of latch fitting of plate °, to guarantee locking or dismounting fastener at set boss on the pedestal and on the recessed wheel shaft.Otherwise only according to the moving latch fitting of workman's sensory plate, be difficult to guarantee to rotate 180 °, then can cause the not enough or dismounting difficulty of locking, need centering again, thereby can not guarantee whole safety.The lock-bit function that the utility model structure is had is guaranteed fastener and whole 's security reliability.

3, the utility model fastener in use be not afraid of expose to the sun and rain, mud solidifies and corrosion, need not maintenance in the repeated use process, pull down and to use, make the dismounting repeat usage reach 100%, and existing bolt and nut fastener needs could use repeat usage＜70% after maintenance.

The utility model fastener is compatible strong in addition, can mix use with existing fastener.In a word since the utility model be by recessed wheel shaft and T type V surface pull rod constitute have safe positioning function multistage, spacing, decide the power locking device, each node is stressed even, integral rigidity is good, safe and reliable.

Below involutory drawings and Examples the utility model is further specified

Fig. 1 is the front view of the utility model safety location fast folder right-angle coupler

Fig. 2 is the left view of Fig. 1

Fig. 3 is the front view of the fast folder in the utility model safety location to clasp

Fig. 4 is the left view of Fig. 3

Among the figure, 1. pedestal 2. cover plates 3. pins 4. pull bars 5. recessed wheel shaft 6. latch fittings 7. check rings 8. recessed wheel shaft positioning boss 9. pedestal positioning boss 10 reinforcing ribs 11. cover teeth

The utility model safety is located fast clamp jaws and is comprised three kinds of forms, promptly right-angle coupler (also claiming cruciform fastening for falsework), to clasp (also claiming the sleeve fastener) and rotary buckle (also claiming universal fastener).Illustrated in figures 1 and 2 is the structure embodiment of right-angle coupler, be used for two locking or dismountings that are the square crossing pipe fitting, the pedestal 1 of its fastener is a Crux, and a recessed wheel shaft and a Tiebar structure that is contained on the same Crux is respectively arranged on two pipe fittings of square crossing.

Fig. 3 and the structure embodiment that Figure 4 shows that clasp, be used for two locking or dismountings that are positioned at same the pipe fitting on the axis, the pedestal 1 of its fastener is to joint chair, with respect to the opposite side of cover plate pin 3 to joint chair on a recessed wheel shaft and Tiebar structure are installed.

Rotary buckle is used for two lockings that are the pipe fitting of any angle intersection, and its pedestal 1 is a rotating seat, and the structure and the right-angle coupler of rotary buckle are similar, and in fact right-angle coupler is a special case of rotary buckle.

In the utility model embodiment, no matter be the fastener of which kind of form, all have pedestal 1 and cover plate 2, an end of cover plate 2 is connected with pedestal 1 by pin 3, and cover plate 2 can turn round around pin, and the other end of cover plate 2 can be started or cover down.Cover plate 2 is a JiongZi Xing with respect to the other end of pin 3, on the dual-side of JiongZi Xing end, all have some lid teeth 11, be provided with a head in the centre of JiongZi Xing end two sides and be the T type, inner face is the pull bar 4 on V-type inclined-plane, the T connector portion of pull bar 4 hangs in the lid tooth 11 of JiongZi Xing cover plate dual-side, because lid tooth 11 diagonally distributes along cover plate 2,, can regulate the degree of tightness of T type pull bar 4 by making T type pull bar inwards or to plug-in tooth.The direction identical with T connector portion in the bottom of pull bar 4 has a hole, wears a recessed wheel shaft 5 in the hole, and the two ends of recessed wheel shaft 5 are passed the pair of holes on the pedestal 1 and linked to each other with pedestal 1.On two end faces of recessed wheel shaft 5, be equipped with latch fitting 6, use special spanner to be inserted in the promptly rotatable recessed wheel shaft 5 of latch fitting 6, because the utility model is equipped with latch fitting 6 on two end faces of recessed wheel shaft, can be from about two directions locking.Latch fitting 6 is a triangle in the present embodiment, is not limited to this a kind of shape certainly.End at recessed wheel shaft 5 has check ring 7, break away from pedestal 1 to prevent recessed wheel shaft from from the pedestal hole, dropping out, the other end has positioning boss 8, on pedestal 1, also be provided with simultaneously safe positioning boss 9, the position setting principle of this positioning boss is: during with recessed wheel shaft 5 Rotate 180s °, the boss 8 on the recessed wheel shaft just withstands the safe positioning boss 9 on the pedestal 1.The workman can such feel to weigh whether rotate 180 when operation like this, and structure of the present utility model has guaranteed the realization of safe location.To be that semicircle is recessed take turns in the position that is positioned at tie rod hole in the centre of recessed wheel shaft 5, and the recessed width of taking turns of semicircle is greater than the width of pull bar 4, to guarantee that when the dismounting, pull bar 5 can outwards move a segment distance from recessed concave surface of taking turns, and makes it to throw off and covers tooth, and cover plate 2 is started.

Cover plate 2 in the utility model is wide cover plate, and there is reinforcing rib 10 inboard, and the mechanical property of this cover plate is better than existing semicircle cover plate, has more strengthened the rigidity and the intensity of cover plate.

The utility model is earlier put into fastener with steel pipe in use, and pull bar 4 hung over covers on the tooth 11, and one jiao of the triangle latch fitting 6 of at this moment recessed wheel shaft 5 end faces down, is inserted in the triangle latch fitting 6 with special spanner then, clockwise rotates 180 °, fastener can be locked.During dismounting,, the fastener cover plate can be unclamped as long as special spanner is inserted in the triangle latch fitting rotates counterclockwise 180 °.

The utility model is applicable to the loading and unloading of scaffold pipe fitting for building.

Claims

1, the fast clamp jaws in a kind of safety location, have pedestal (1) and cover plate (2), one end of cover plate (2) flexibly connects by pin (3) and pedestal (1), it is characterized in that: the other end of cover plate (2) is JiongZi Xing, be provided with a pull bar (4) in the centre of JiongZi Xing dual-side, the inner face of pull bar is the T type for the V-type beveled head, on the horizontal dual-side that hangs over the cover plate JiongZi Xing, the direction identical with T connector portion in the bottom of pull bar has a hole, wear a recessed wheel shaft (5) in the hole, on two end faces of recessed wheel shaft (5), be equipped with latch fitting (6), one end of recessed wheel shaft (5) has check ring (7), the other end has positioning boss (8), and to be that semicircle is recessed take turns in the position that the centre of recessed wheel shaft (5) is positioned at tie rod hole, and the recessed width of taking turns of semicircle is greater than the width of pull bar (4); Have safe positioning boss (9) on pedestal (1), when the position of this positioning boss should make recessed wheel shaft (5) Rotate 180 °, the boss on the recessed wheel shaft (8) just withstood the safe positioning boss (9) on the pedestal (1).

2, the fast clamp jaws in safety location according to claim 1, it is characterized in that: all have some lid teeth (11) on the JiongZi Xing dual-side of cover plate (2), horizontal the hanging over of T connector portion of pull bar (4) covered in the tooth.

3, the fast clamp jaws in safety location according to claim 1, it is characterized in that: described cover plate (2) is wide cover plate, and there is reinforcing rib (10) inboard.

4, the fast clamp jaws in safety location according to claim 1, it is characterized in that: for two right angle connection fasteners that are the square crossing pipe fitting, described pedestal (1) is a Crux, on two pipe fittings of square crossing a recessed wheel shaft and Tiebar structure are arranged respectively, they are installed on the same Crux.

5, the fast clamp jaws in safety location according to claim 1, it is characterized in that: for two be positioned at same the pipe fitting on the axis to clasp, described pedestal (1) is to joint chair, with respect to the opposite side of cover plate pin (3) to joint chair on, a recessed wheel shaft and Tiebar structure are installed.

6, the fast clamp jaws in safety location according to claim 1, it is characterized in that: for two rotary buckles that are any angle intersection pipe fitting, described pedestal (1) is a rotating seat, on two pipe fittings that intersect a recessed wheel shaft and Tiebar structure is arranged respectively, and they are installed on the same rotating seat.