CN2083632U - Mineral three-purpose valve protector - Google Patents

Abstract

The utility model relates to a protecting device of a three-purpose valve for mine, which belongs to the protecting device of a support device for mine. The utility model is mainly characterized in that the utility model can be formed by that the right end of a left-end U-shaped clamp 1 at the left end is ordinally sheathed with a right-end straight-shaped clamp 2 and a screw-up butterfly nut, and the left end of the left-end U-shaped clamp 1 has an inverted U-shaped structure; the utility model can adopts an integrative protecting device which is formed by that the left end of an L-shaped 4 is welded with a lateral U-shaped clamp 5. When the utility model is used, the three-purpose valve and a hydraulic supporting column are not needed to be modified, and the utility model has low prepare cost, convenient loading and unloading, and safety.

Description

Mineral three-purpose valve protector

The utility model belongs to the safety guard of mining support apparatus.

Hydraulic prop is the important support apparatus in the downhole production of colliery, and its functional performance directly influences the safety problem of colliery downhole production.Employed triple-use valve is owing to design reasons on the hydraulic prop, and it destroys safety factor and does not reach code requirement.Therefore often cause breaking property to destroy, thereby cause great human casualty accident.Always give birth to twice circular of No. 153 literary composition according to coal in total living No. 173 literary composition of coal in (89) and (89), only in national coal mine under the unified-allocation system, just cause two people's death in March, 89 to November because of triple-use valve ruptures to fly out.In fact, comprise local mine, the personnel casualty accidents that causes because of the triple-use valve fracture occurs repeatedly, and this has become operator's trouble and worry, and these leaders at different levels have been caused great attention.The triple-use valve use amount in the whole nation is about more than 2,000,000 at present, and annual input amount is about about 40～500,000.Also have many realistic problems owing to thoroughly improve design, technology and the manufacturing etc. of triple-use valve, still can not realize in a short time, therefore setting up safety guard for triple-use valve is the current effectively precautionary measures.Also there is not this safety guard to come out at present at home.

The purpose of this utility model is to design a kind of passive type safety guard at present in the rupture failure problem that causes with the mechanical strength deficiency of triple-use valve, prevents the serious human casualty accident that flies out and brought after the triple-use valve fracture.

Advantage of the present utility model: (1) can not do any change to triple-use valve and hydraulic prop in use; (2) processing cost is low, and is easy to loading and unloading, do not need special maintenance; (3), has very high safety factor by the mechanical model analysis.

Implementer's case of the present utility model: this triple-use valve safety guard is when triple-use valve generation fracture flies out, and utilizes mechanical system to limit post-rift triple-use valve part and outwards flies out.According to the design feature of triple-use valve, can adopt Fig. 1 or scheme shown in Figure 3, the left and right sides valve cylinder from the triple-use valve outside with triple-use valve gives commissure.When triple-use valve ruptured, this device can be effectively be connected as a single entity the left and right sides valve cylinder of triple-use valve, thereby guarantees that the post-rift component of triple-use valve can not fly out.

Description of drawings:

Fig. 1: one of triple-use valve safety guard embodiment schematic diagram

Fig. 2: for the A of Fig. 1 to view

Fig. 3: two schematic diagrams of triple-use valve safety guard embodiment

Fig. 4: for the B of Fig. 3 to view

In the accompanying drawing: 1--left end U type card; The straight type card of 2--right-hand member;

The 3--wing nut; 4--L type card;

5--side U type card.

Embodiment:

(1). one of mining triple-use valve safety guard embodiment (see figure 1) is the fastening-type protection philosophy; it is that right-hand member at left end U type card 1 puts the straight type card 2 of right-hand member successively and screws on wing nut 3 and forms, and is inverted U card shape structure at the left end of left end U type card 1.In use left end U type card 1 is inserted in the peripheral groove of triple-use valve fluid injection end, the straight type card 2 of right-hand member inserts in the triple-use valve unloading hole, by wing nut 3 left end U type card 1 and the straight type card 2 of right-hand member is clamped on the triple-use valve then, to reach the purpose of protection.When giving the triple-use valve fluid injection, can not need take off this protective device.

(2). two (see figure 3)s of mining triple-use valve safety guard embodiment are to adopt integrated protection philosophy, and it is to form at a left end side U type card 5 of welding of L type card 4.In use, two right-hand member of mining triple-use valve safety guard is inserted in the triple-use valve unloading hole, the side U type groove of its left end snaps in the peripheral groove of triple-use valve fluid injection end.This structure need be taken off this protective device when giving triple-use valve fluid injection and off-load.

Claims (2)

1, a kind of mining triple-use valve safety guard, the right-hand member that it is characterized in that left end U-shaped card 1 put the straight shape card 2 of right-hand member successively and screw on wing nut 3 to be formed, and wherein the left end of left end U-shaped card 1 is inverted U-shaped card structure.

2, a kind of mining triple-use valve safety guard is characterized in that at the left end of L shaped card 4 a side U-shaped card 5 of welding and forms.

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