CN102313499A

CN102313499A - Explosion-proof ball

Info

Publication number: CN102313499A
Application number: CN201110254854A
Authority: CN
Inventors: 魏渤祥; 栗玉斌
Original assignee: YINGKOU LIAOHE MACHINERY PIPE FITTINGS CO Ltd; YINGKOU LIAOJI TECHNOLOGY EQUIPMENT Co Ltd
Current assignee: YINGKOU LIAOHE MACHINERY PIPE FITTINGS CO Ltd; YINGKOU LIAOJI TECHNOLOGY EQUIPMENT Co Ltd
Priority date: 2011-08-31
Filing date: 2011-08-31
Publication date: 2012-01-11
Anticipated expiration: 2031-08-31
Also published as: CN102313499B

Abstract

The invention discloses an explosion-proof ball, which comprises a ball body, a ball cover, a ball cover positioning control arm, a supporting plate and a worm reduction gear. The ball cover positioning control arm is fixedly connected with the supporting plate, and the supporting plate is fixedly connected with the ball cover. The explosion-proof ball is characterized in that an arc-shaped groove at the lower end of a vertical rod of the ball cover positioning control arm is movably connected with central shafts at two ends of the ball body; a swinging rod and a torsion spring are sleeved on a swinging rod shaft hinged with the supporting plate; a chain hinged with the upper end of the swinging rod is sequentially in wrapped connection with a second guide wheel hinged on the ball body, a sprocket wheel fixedly connected onto an output shaft of the worm reduction gear, a first guide wheel hinged on the ball body, and a third guide wheel; the tail end of the chain is hinged with the ball cover; an input shaft of the worm reduction gear is fixedly connected with an output shaft of a speed increaser; an input shaft of the speed increaser is fixedly connected with a hand wheel or a motor; and a supporting wheel hinged with the lower end of the supporting plate is in contact with and matched with a bracket of the ball body. The explosion-proof ball has the advantages that the structure is simple, the ball cover is convenient to be lifted, opened and closed, the action is reliable, the self-locking of the ball cover is firm, the marching bumpiness in various road conditions is not worried, and the like.

Description

Explosion-proof ball

Technical field

The present invention relates to the anti-terror explosive removing field, is a kind of explosion-proof ball.

Background technology

Existing explosion-proof ball all is to adopt spherical cap to place within the spheroid usually, by the switching mechanism of spherical cap handle that spherical cap goes up and down in spheroid and around the upset of ball centre axle with realization spherical cap Push And Release, but the structure of the switching mechanism of spherical cap has nothing in common with each other.China utility model Granted publication CN201331310Y discloses more advanced " a kind of explosion-proof ball "; The spherical cap switching mechanism of this explosion-proof ball is an external switch mechanism; Its structure is; The output shaft of worm gear reducer drives two cover swing arms and last connecting rod driving draw back plate swings back and forth around the ball centre axle; And through the lifting arm that the connecting rod push-and-pull links to each other with U type crossbeam on the spherical cap, make it slide and swing back and forth along the axis of guide and realize the spherical cap Push And Release around the ball centre axle, its weak point is: 1. when spherical cap is closed tight and the contact pressure between the spheroid opening part end face and spherical cap weight to very big moment of torsion and the moment of flexure effect of U type crossbeam generation; U type crossbeam is easy to generate distortion, influences spherical cap and closes effect; 2. prop the length of connecting rod of lifting arm and fix, can not compensate the plastic deformation that explosion-proof ball uses U type crossbeam to produce for a long time, also influence spherical cap and close effect; During 3 spherical cap tumbler switches, for preventing the upper and lower relatively slippage of the lifting arm and the axis of guide by alignment pin location, spherical cap upper and lower when mobile alignment pin must open again, the position often occurred alignment pin do not acted on, influence the spherical cap switch; 4. structure more complicated, because the swing arm corner is bigger, two limit positions is nearer from the dead point, to go up connecting rod during near the dead point stressed bigger when the swing arm swing, is prone to produce big distortion, also is prone to produce operate and damage mechanism; 5. the linkage of both sides takes up room bigger.

Summary of the invention

Problem to be solved by this invention is, prior art is carried out substantial improvements and innovation, provides a kind of simple in structure; Up-down and switch spherical cap are convenient, flexible movements, and the spherical cap self-locking is firm; Easy to operate, reliable effect is not afraid of the explosion-proof ball that various road conditions are advanced and jolted.

Solving the technical scheme that its technical problem adopts is; A kind of explosion-proof ball; It comprises spheroid 1, spherical cap 4, spherical cap positioning control arm 15, gripper shoe 20, worm reduction gear 5; Said spherical cap positioning control arm 15 is connected with gripper shoe 20, and gripper shoe 20 is connected with spherical cap 4, it is characterized in that: the deep-slotted chip breaker 24 of said spherical cap positioning control arm 15 montant lower ends flexibly connects with the central shaft at spheroid 1 two ends 2; On the hinged fork axle 16 of said gripper shoe 20, be nested with fork 17 and torsion spring 18; One end of torsion spring 18 contacts with fork 17, and the other end of torsion spring 18 contacts with gripper shoe 20, and the hinged chain 10 in fork 17 upper ends is cross-over connection hinged first guide wheel 11 and the 3rd guide wheel 13 on the sprocket wheel 7 that is connected on hinged second guide wheel 12, the worm reduction gear output shaft 6 on the spheroid 1, spheroid 1 successively; It is terminal hinged with spherical cap 4, the output shaft fixed connection of the power shaft of said worm reduction gear 5 and speed increaser 8.

The power shaft of said speed increaser 8 and handwheel 9 or motor are connected.

The support wheel 22 that said gripper shoe 20 lower ends are hinged and carriage 23 contact matching of spheroid 1.

Beneficial effect of the present invention is embodied in: owing to adopt chain drive, the deep-slotted chip breaker of spherical cap positioning control arm montant lower end and the central shaft at spheroid two ends flexibly connect, and support wheel cooperates with the carriage of spheroid; The spherical cap location is opened and closed; Its reliable effect, simple in structure, transmission efficiency is high; Because chain, support wheel promote the opening part lower surface of spherical cap to spheroid jointly; And close tight and lock with spheroid; Under the spherical cap closing state; The gravity of its coupling mechanism force and spherical cap acts on gripper shoe and the chain, is not afraid of jolting that various road conditions advance, and each parts of explosion-proof ball can not be out of shape or damage; Its compact conformation, it is little to take up room, go up and down and switch spherical cap convenience, reliable in action, spherical cap self-locking firm.

Description of drawings

Fig. 1 looks sketch map for explosion-proof ball structure master.

Fig. 2 is the schematic top plan view of Fig. 1.

Fig. 3 looks sketch map for the left side of Fig. 1.

Fig. 4 is spherical cap 4 decline view.

Fig. 5 is spherical cap 4 opening sketch mapes.

Among the figure: 1 spheroid, 2 central shafts, 4 spherical caps, 5 worm reduction gears, 6 output shafts; 7 sprocket wheels, 8 speed increasers, 9 handwheels, 10 chains, 11 first guide wheels; 12 second guide wheels, 13 the 3rd guide wheels, 15 spherical cap positioning control arms, 16 fork axles, 17 forks; 18 torsion springs, 20 gripper shoes, 22 support wheels, 23 carriages, 24 deep-slotted chip breakers.

The specific embodiment

Utilize accompanying drawing and embodiment that the present invention is described further below.

With reference to Fig. 1-3, explosion-proof ball of the present invention comprises spheroid 1, spherical cap 4, spherical cap positioning control arm 15, gripper shoe 20, worm reduction gear 5.Said spherical cap positioning control arm 15 is connected with gripper shoe 20, and gripper shoe 20 is connected with spherical cap 4.The deep-slotted chip breaker 24 of said spherical cap positioning control arm 15 montant lower ends flexibly connects with the central shaft at spheroid 1 two ends 2.On the hinged fork axle 16 of said gripper shoe 20, be nested with fork 17 and torsion spring 18, an end of torsion spring 18 contacts with fork 17, and the other end of torsion spring 18 contacts with gripper shoe 20.The hinged chain 10 in fork 17 upper ends is cross-over connection hinged first guide wheel 11 and the 3rd guide wheel 13 on the sprocket wheel 7 that is connected on hinged second guide wheel 12, the worm reduction gear output shaft 6 on the spheroid 1, spheroid 1 successively, and it is terminal hinged with spherical cap 4.The output shaft fixed connection of the power shaft of said worm reduction gear 5 and speed increaser 8, the power shaft of speed increaser 8 and handwheel 9 are connected and realize manually.But also the power shaft of speed increaser 8 and motor be connected realize electronic.The support wheel 22 that said gripper shoe 20 lower ends are hinged and carriage 23 contact matching of spheroid 1.Worm reduction gear 5, speed increaser 8 are the commercially available prod.

With reference to Fig. 1, Fig. 4 and Fig. 5; Explosion-proof ball of the present invention to opening, rotates handwheel 9 with hand by closed condition, increases rotating speed through speed increaser 8 and drives worm reduction gear 5 driving chains 10; One end pulling fork, the 17 deflection set angles of chain 10; The other end dispensing spherical cap 4 of chain 10 descends, and is rotated further handwheel 9, and spherical cap 4 is flipped open down gradually and puts in place.In like manner, handwheel 9 backward rotation and spherical cap 4 and spheroid 1 close proximity are touched, and spherical cap 4 is closed, realize that by the auto-lock function of worm reduction gear 5 spherical cap 4 is locked in the opening part of spheroid 1.

Explosion-proof ball of the present invention is applicable to that departments such as public security, People's Armed Police, military enterprise store, the special equipment of transport of detonation article.Be widely used in places such as subway, airport, harbour, station, stadiums, showground, square, conference centre, suspected explosive safety inspection, also can be used for the transportation of explosive strange land or in ball, directly suspected explosive is ignited destruction.

The explosion-proof ball of this specific embodiment and non exhaustive to those skilled in the art, anyly duplicating and changing without what creative work had been done, all belongs to the scope of claim protection of the present invention.

Claims

1. explosion-proof ball; It comprises spheroid (1), spherical cap (4), spherical cap positioning control arm (15), gripper shoe (20), worm reduction gear (5); Said spherical cap positioning control arm (15) is connected with gripper shoe (20); Gripper shoe (20) is connected with spherical cap (4); It is characterized in that: the deep-slotted chip breaker (24) of said spherical cap positioning control arm (15) montant lower end flexibly connects with the central shaft (2) at spheroid (1) two ends; On the hinged fork axle (16) of said gripper shoe (20), be nested with fork (17) and torsion spring (18); One end of torsion spring (18) contacts with fork (17), and the other end of torsion spring (18) contacts with gripper shoe (20), and the hinged chain (10) in fork (17) upper end is wire-wrapped in the sprocket wheel (7), the spheroid (1) that are connected on upward hinged second guide wheel (12) of spheroid (1), the worm reduction gear output shaft (6) successively and goes up hinged first guide wheel (11) and the 3rd guide wheel (13); It is terminal hinged with spherical cap (4), the output shaft fixed connection of the power shaft of said worm reduction gear (5) and speed increaser (8).

2. explosion-proof ball according to claim 1 is characterized in that: the power shaft of said speed increaser (8) and handwheel (9) or motor are connected.

3. explosion-proof ball according to claim 1 is characterized in that: the support wheel (22) that said gripper shoe (20) lower end is hinged and carriage (23) contact matching of spherical tank body (10).