CN205527329U - Prevent falling safe elevator round pin - Google Patents

Abstract

The utility model discloses a prevent falling safe elevator round pin, the pin rod had several rubber ring grooves with the corresponding section processing of elevator ear pinhole when characterized by put in place in the prevent falling safe elevator round pin installation, place the rubber circle that the external diameter slightly is greater than elevator ear pinhole internal diameter in the rubber ring groove, hand handle grip during tripping operation petroleum string, aim at elevator ear pinhole reeve pin rod drawing the round pin head, rubber on the pin rod encloses applys certain power from the handle downwards to safety elevator round pin when reacing elevator ear pinhole, the rubber circle moves down along with the pin rod under dual the pushing of rubber ring groove and elevator ear pinhole, the rubber circle is advanced in the elevator ear pinhole by the extrusion, the inner wall that elevator ear pinhole was pushed to rubber circle inflation under the effect of self rubber elasticity when the pin rod target in place by the anchoring in elevator ear pinhole, otherwise can take out the elevator round pin easily, anchoring effect because of there being several rubber circle when the elevator overturns for some reason, the prevent falling safe elevator round pin pole does not drop in just can not following elevator ear pinhole, it pounds the secondary accident of emergence down to guarantee that the elevator can not follow to drop in the rings.

Description

Anti-lost safety elevator

Technical field

This utility model relates to injecting when petroleum drilling well workover plays lower tubular column in elevator ear pin-and-hole and other industry in the grappling of pin, prevents from making elevator come off from suspension ring to cause other secondary accident to occur because elevator pin comes off.

Background technology

Up in derrick space at the petroleum drilling well workover hollow tourist bus that makes a trip, the elevator that can touch on the rope being suspended in derrick space and some object because of reasons such as swings in decentralization process or hang in suspension ring when braking suddenly is possible to upset, now on-the-spot conventional conventional straight post elevator pin will drop out from elevator ear pin-and-hole, the hanger of elevator both sides disengages from suspension ring, cause elevator to fall from the air and pound to rig floor, injure personnel or equipment etc., there is great potential safety hazard.

Summary of the invention

The potential safety hazard existed for on-the-spot presently used straight-bar elevator pin, the purpose of this utility model has aimed to provide a kind of anti-lost safety elevator, prevent elevator from coming off from suspension ring, this anti-lost safety elevator uses rubber ring can elastic shrinkage can the principle of elastic return elevator pin being anchored in elevator ear pin-and-hole after dischargeing external force under external force, guarantee that elevator pin does not comes off in the case of elevator overturns yet, it is ensured that elevator is not shed to drilling floor surface from suspension ring and hurts sb.'s feelings.

The purpose of this utility model so completes:

A kind of anti-lost safety elevator is mainly by handle, safe becket bridle, rubber ring, aprons slot, pin rod with draw plunger and form, handle is at a right angle with pin rod to be connected, pin rod lower end to draw plunger tapered, when anti-lost safety elevator is installed and put in place, pin rod is machined with aprons slot with corresponding section of elevator ear pin-and-hole, being placed with the external diameter rubber ring more than elevator ear pin-and-hole internal diameter in aprons slot, the front end of handle is welded with safe becket bridle.

Advantage of the present utility model and generation provide the benefit that:

1, this utility model use conventional part to assemble, simple to operate, can be easily worked according to various elevator sizes, low cost, there is the advantage commonly used.

2, because of the compressible deformation of rubber cushion rubber the principle of energy elastic return, it is ensured that elevator pin is anchored in elevator ear pin-and-hole in the case of elevator overturns and does not comes off, it is ensured that elevator is not shed to drilling floor surface from suspension ring and secondary accident occurs.

Accompanying drawing explanation

Fig. 1 is this utility model front view.

Fig. 2 is this utility model rubber ring 3 and the rubber anchor partial enlarged drawing of aprons slot 4 composition.

Fig. 3 is rubber anchor location drawing of correspondence in elevator ear pin-and-hole that in this utility model, anti-lost safety elevator is installed when putting in place on pin rod 5.

Detailed description of the invention

As shown in Figure 1, a kind of anti-lost safety elevator is mainly by handle 1, safe becket bridle 2, rubber ring 3, aprons slot 4, pin rod 5 with draw plunger 5a and form, handle 1 is at a right angle with pin rod 5 to be connected, pin rod 5 lower end to draw plunger 5a tapered, when anti-lost safety elevator is installed and put in place, pin rod 5 is machined with aprons slot 4 with corresponding section of elevator ear pin-and-hole, being placed with the external diameter rubber ring 3 more than elevator ear pin-and-hole internal diameter in aprons slot 4, the front end of handle 1 is welded with safe becket bridle 2.

Handle 1 is held when playing lower tubular column, pin rod 5 is injected drawing plunger 5a alignment elevator ear pin-and-hole, from handle 1, safety elevator is downwardly applied to certain power when the rubber ring 3 on pin rod 5 arrives elevator ear pin-and-hole, rubber ring 3 moves down with pin rod 5 under the dual pushing of aprons slot 4 and elevator ear pin-and-hole, rubber ring 3 is extruded into elevator ear pin-and-hole, when anti-lost safety elevator is installed and put in place, rubber ring 3 expands the inwall pushing elevator ear pin-and-hole under the effect of self elastic rubber, elevator pin is just anchored in elevator ear pin-and-hole under the elastic force effect of several self rubber of rubber ring 3.Because there being the grappling effect of several rubber ring 3 when elevator overturns for some reason, anti-lost safety elevator bar would not come off from elevator ear pin-and-hole, it is ensured that elevator will not pound the secondary accident of generation under coming off from suspension ring.Otherwise, holding handle 1 when taking elevator pin, upwards exert oneself, rubber ring 3 moves up with pin rod 5 under the dual pushing of elevator ear pin-and-hole and aprons slot 4, again resile under the effect of self elastic rubber of rubber ring 3 after rubber ring 3 goes out elevator ear pin-and-hole, reciprocation cycle successively.Safe becket bridle 2 fastens elevator pin safety rope and has tied up on suspension ring, prevented it from coming off and hurt sb.'s feelings.

Claims (1)

1. an anti-lost safety elevator is mainly by handle (1), safe becket bridle (2), rubber ring (3), aprons slot (4), pin rod (5) with draw plunger (5a) and form, it is characterized in that handle (1) is at a right angle with pin rod (5) to be connected, pin rod (5) lower end to draw plunger (5a) tapered, when anti-lost safety elevator is installed and put in place, pin rod (5) is machined with aprons slot (4) with corresponding section of elevator ear pin-and-hole, being placed with the external diameter rubber ring (3) more than elevator ear pin-and-hole internal diameter in aprons slot (4), the front end of handle (1) is welded with safe becket bridle (2).