CN1140706C - Safety quick assembled and disassembled fastener and producing method - Google Patents

Abstract

The present invention relates to a universal workpiece locking device, which particularly to provides a safe fastener quickly assembled and disassembled and a producing method thereof. The present invention is characterized in that an integral shaft head (2) extending toward one end is arranged on a base (1). The shaft head (2) is changed from large to small in an arc shape, and passes through an end hole (9) on an arc-shaped pressing cover (3) for connecting two thick solid line ribs (5) arranged on the surface of the pressing cover (3) and a U-shaped integral opening (6) at the other end. A spiral surface (7) with a small Q angle is arranged on the surface of the pressing cover, a multi-side T-shaped screw bolt (8) orderly passes through the end hole (9) on the base (1) and a screw washer (10) with a thread-less inner hole to form a whole with a free locking boss. The fastener solves the problem that the screw is difficult to be assembled and disassembled because the threads are rusted, and has the advantages of low cost and easy production and popularization.

Description

Knock-down fitting safely and fast

The present invention relates to general parts quick-locking device, a kind of knock-down fitting safely and fast is provided especially.It comprises the three kinds of quick assembling and disassembling device of right angle, rotation, butt joint in the construction engineering.

Known machinery, the general parts locking device of construction industry generally use the bolt attaching nut to form.When installing/dismounting, usually with just tightening or loosening behind the some circles of spanner swivel nut, particularly fasteningly in the construction engineering unclamp one pair of fastener and need 2-3 minute, and labor intensity is big tired easily, so fastening degree is with feel, the excessive thread stripping that makes easily of exerting oneself causes gland and rivet to damage, the mud that exposes to the sun and rain in the open in construction especially spills, solidifying rust after death can't dismantle, by the dismounting of methods such as manual breakage sawing, also need full-time staff's maintenance clean filling machine oil, cause damaging and lose seriously, it is low to reclaim repeat usage.Event is safe and reliable easy to use because of this locking device also relates to, and cost must be low.Announced in the patent document that all there was multiple not mature enough factor in some scaffold clasps, thus operating method and ripe pedestal geometrical shape be accustomed to because of having changed known user, and help in the construction and the old fastener transformation of stock's tradition.Self-locking and latch performance are good, the knock-down fitting safely and fast that cost is low, safe and reliable.

The present invention's knock-down fitting purpose safely and fast is achieved by the following technical solution.Keeping the conventional fastener pedestal is prerequisite, referring to Fig. 1, Fig. 3, its feature comprises a pedestal (1) and a gland (3), being shaped on Xiang Yiduan on the described pedestal (1) stretches out, the spindle nose (2) of the curve that is circular shape from diminishing greatly, described spindle nose (2) is integral with pedestal (1), and a stomidium (4) that passes on the described gland (3) that is circular shape connects with described gland (3) combination, the outer surface of described gland (3) is shaped on two heavy line stiffening ribs (5), be shaped on U-shaped opening (6) with the other end of the outer surface of its one, connecting screw rod (8) passes pedestal (1) successively and goes up to be connected with a joggle with a stomidium (9) the endoporus threadless double helix pad cap (10) of the relative side of spindle nose (2) and the nut (11) that is equipped with and comprising on the double helix face (7) of locking boss K, connect screw rod (8) and can be made into polygon T shape or worker's shape, it is characterized in that: U-shaped opening (6) outer surface is the helical initial point with the center hole, the Q angle is paramountly launched around circumference from inside to outside from low, and Q angle wherein is 360-500 °.Realized the fastening mold release function of quick mounting or dismounting.

Describe embodiments of the invention in detail below in conjunction with accompanying drawing:

Fig. 1: be right-angle coupler assembly structure schematic representation of the present invention.

Fig. 2: be rotary buckle assembly structure schematic representation of the present invention.

Fig. 3: for the present invention to clasp assembly structure schematic representation.

Fig. 4: for assembling schematic representation with helicoid after the present invention and the base-separation.

Assembly structure that the present invention describes and working principle are to realize like this, when gland (3) when being in opening state, workpiece steel pipe D is contained on the pedestal (1), then gland (3) is rotated workpiece or steel pipe D obvolvent around spindle nose (2), operating polygon T shape screw rod (8) snaps in to double helix face (7) to the U-shaped opening (6) on the gland (3) around the rotation of the hole (9) of pedestal (1) one end, use tool wrench rotating screw pad cap (10) or nut (11) to rotate then, when being shaped on the double helix face (7) from the low paramount locking boss K that turns to terminal point, promptly produced axial pressure and be delivered on the gland (3), up to worker's shape part steel pipe D is clamped fast.When needs get loose workpiece steel pipe D dismounting, if it is dead that rust takes place the locking parts, the easy removal with the instrument counter-rotating, removed the axial pressure of and workpiece steel pipe D last so that reached the state that initially gets loose gland (3), the operator can pull down in company with T shape screw rod (8) is outwards rotated from the U-shaped opening (6) on the gland (3), behind the unlatching gland (3) workpiece steel pipe D is withdrawed from separates, goes round and begins again with pedestal (1).Referring to accompanying drawing 1, Fig. 3

Safety interlocking substantive distinguishing features of the present invention: when being double helix cap (10) with instrument rotation when worker's shape pull bar rotates locking boss K up to terminal point, both realized stopping fastening locking, can prevent from again to exert oneself excessive and the effect of getting loose, because double helix pad cap (10) is minimum with the Q angle that helicoid (7) cooperates, because of spiral rising initial point from center hole (referring to Fig. 5), from low paramount around circumference also expansion from inside to outside, helicoid greater than 360-500 ° or more than, the minimum self-locking property of Q angle upstroke slope is good, can realize steel pipe D is clamped fast, get loose otherwise counter-rotating can realize fast quick-detach.Be that this structure is from low paramount double helix face F referring to the sectional view among Fig. 5 ₁, F ₂, can symmetry reach balance when any position of the circumference when locking state is stressed, so increased clamping force.Substantial improvements is perfect repeatedly so the present invention is by several times, and succeeds through national quality inspection conformance test.

Fig. 2 of the present invention has described rotary buckle embodiment, and its working principle and structure are identical with Fig. 1, and its difference is passed the pedestal center hole by two half-dome bases by rivet and integrally combined.

Fig. 3 of the present invention has described clasp embodiment, and it and Fig. 1, Fig. 2 difference can be installed in pedestal simultaneously with two workpiece steel pipe D, respectively by two gland obvolvents, is suitable for the occasion of two pipe fittings butt joint.

Fig. 4 of the present invention described with T shape screw rod assembling and base-separation after assemble schematic representation.Though screw thread is arranged on the screw rod among the figure, do not have thread helix pad cap and both can realize quick clamping because of passing endoporus, nut both can keep rotating at a slow speed clamping, can prevent the effect of getting rusty again, can be used as the fixed block that prevents that screw-cap from coming off again.

Fig. 5 of the present invention has described and worker's shape pull bar assembling schematic representation.Its difference be its double helix face and separately the standard piece manufacturing be embedded on the gland, establish structure be applicable to and construct in reach stock's standard fastener transformation.

The present invention compared with prior art has following advantage: because of the self-locking angle breakthrough of spiral upstroke slope 360 ° of theorems of public domain, although T shape screw rod connect, rationally adopted greater than 360-500 ° or above Q angle value, basic identical with standard thread Q angle, its safety certainly The lock performance is good, has realized the reducing model because the threadless double helix pad of endoporus cap cooperates with the double helix face Enclose greatly, it is dead not to be afraid of rust, and pedestal is connected the no rivet of punching and is connected with gland, improved pedestal and steel pipe The assembling concentricity has also increased clamping force, so kept again user habit in gland operation side Method does not change GB and user and has recognized ripenable pedestal geometry, and energy when stressed Enough reach balance, compact conformation, extensively be suitable for machinery, the rapid-assembling/disassembling locking dress of architectural engineering Put.

Claims (3)

1, a kind of general parts quick-locking device, its feature comprises a pedestal (1) and a gland (3), being shaped on Xiang Yiduan on the described pedestal (1) stretches out, the spindle nose (2) of the curve that is circular shape from diminishing greatly, described spindle nose (2) is integral with pedestal (1), and a stomidium (4) that passes on the described gland (3) that is circular shape connects with described gland (3) combination, the outer surface of described gland (3) is shaped on two heavy line stiffening ribs (5), be shaped on U-shaped opening (6) with the other end of the outer surface of its one, connecting screw rod (8) passes pedestal (1) successively and goes up to be connected with a joggle with a stomidium (9) the endoporus threadless double helix pad cap (10) of the relative side of spindle nose (2) and the nut (11) that is equipped with and comprising on the double helix face (7) of locking boss K, connect screw rod (8) and can be made into polygon T shape or worker's shape, it is characterized in that; U-shaped opening (6) outer surface is the helical initial point with the center hole, and the Q angle is paramountly launched around circumference from inside to outside from low, and Q angle wherein is 360-500 °.

2, quick-locking device according to claim 1, it is characterized in that: the threadless double helix pad of endoporus cap (10), can make one with the sealing of nut (11) head, its head configuration can be made into polygonal or quincunx, the outer surface of gland (3) can be made into no stiffening rib shape, and its spindle nose (2) can be made one with gland (3).

3, according to claim 1 and 2 described quick-locking devices, it is characterized in that, can remove the double helix face (7) of nut (11) and the last end of gland (3), the connection screw rod of making no screw thread worker shape pull bar is passed a stomidium (9) on the pedestal to an end of gland (3).

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