CN2293646Y

CN2293646Y - Hydraulic prop antifalling locking device

Info

Publication number: CN2293646Y
Application number: CN 97214524
Authority: CN
Inventors: 祖书良
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-04-17
Filing date: 1997-04-17
Publication date: 1998-10-07
Anticipated expiration: 2007-04-17

Abstract

The utility model belongs to an assorted device for a hydraulic prop in the mine of the coal mine. A base of the utility model is symmetrically provided with two d-shaped lock hooks use for being connected with a hinged bar, and the lower part is provided with two slots; a lock tongue matched with the slot of the d-shaped lock hook to cause the lock hook to be locked on the upper position and the lower position is arranged in the base; the arrangement of the base causes the d-shaped lock hook to be positioned in a hidden slot of the lock hook. While in use, the lower part of the utility model is connected with the hydraulic prop into integration, and the upper part lock hook is connected with the hinged bar. When not used, the lock hook is laid down to be positioned in the hidden slot. The utility model has the advantages of rational simple structure design, reliable falling-prevention effect, convenient transportation and easy installation.

Description

The hydraulic prop antifalling locking device

The utility model belongs to the corollary apparatus of coal mine with hydraulic prop, mainly proposes a kind of hydraulic prop antifalling locking device.

At present, the hydraulic prop protection is used in most of coal mine under the unified-allocation system, and in various degree existence problems of falling the post all, not only influences the coal mining progress, and post falls casualty accident and also caused very big loss and harm for country and miner's life security; Hydraulic prop is connected with the binding of top H shaped steel shack in employing or metal connecting rod ways of connecting has been wasted a large amount of manpowers and material, still can't resolve root problem.

The purpose of this utility model promptly is to propose a kind of improved hydraulic prop antifalling locking device, and it is anti-down reliable for effect and have the characteristics that convenient in carrying is installed simultaneously that it is had.

The utility model is finished the technological approaches that its invention task takes: symmetry is provided with two d type latch hooks in order to be connected with articulated roof beam on the dead lock pedestal, d type latch hook can be around 180 ° of rotations of bearing pin, its underpart has the short slot of joining with dead bolt kiss, be provided with in the pedestal cooperate with the short slot of d type latch hook make d type latch hook about the dead bolt of two locking positions; And the hidden groove of latch hook that is positioned at it downwards when d type latch hook was fallen is set on pedestal.

The short slot of the d type latch hook bottom of dead lock can be 90 ° of short slots.

Dead bolt in the pedestal can be the type dead bolt.

The switch that dead bolt top in the dead lock pedestal falls dead bolt when one rotation is set, the outside of switch is positioned at the pedestal outer wall.

The switch on dead bolt top can be semicircle, and it is outside to be interior hexahedron and the groove that is positioned at the pedestal outer wall.

Dead lock pedestal bottom for circular cavity with it is interior and closely cooperate so that the hydraulic prop top enters, fasten as one by uniform pin.

Dead lock pedestal center upper portion is provided with a parallel bowl, join with the arc bowl seat kiss of pedestal, by about can be in the gap after the screw, swing.

The utility model is placed in the hydraulic prop top in use in the circular cavity of dead lock bottom and with pin and connects as one, 90 ° of short slots of d type latch hook combine with type dead bolt right angle and make latch hook be lock-out state, the top latch hook is connected with the tunnel articulated roof beam, but the level bowl left-right and front-back of pedestal center upper portion swing keeps plane contact to be kissed with the steel plate of ceiling i iron thus always and joins support; When the carrying entrucking, can semicircle switch (lock core) be rotated by the hexagon key ring, switch rotates at present, and the die mould dead bolt falls and the disengagement of d type latch hook it, d type latch hook can be put down, make whole latch hook be positioned at the hidden groove of pedestal, at this moment 90 ° of short slots of another of latch hook combine with type dead bolt right angle face and are similarly lock-out state, can avoid breaking the loss that causes thus when entrucking, carrying.

Structure design of the present utility model is comparatively reasonable and simple, has anti-down reliable for effect and carrying, characteristics easy for installation.

The accompanying drawing that the utility model embodiment provides is:

Accompanying drawing 1 is the utility model structural representation.

Accompanying drawing 2 is the external structure schematic diagram.

Accompanying drawing 3 is Fig. 2 lateral view.

The embodiment that provides is in conjunction with the accompanying drawings further specified its structure:

As shown in drawings: symmetry is provided with two d type latch hooks 1 on the utility model pedestal 5, can be around bearing pin i.e. 180 ° of rotations up and down, have two 90 ° of short slots 3 on the round sleeve of its underpart, one type dead bolt 6 is set in the pedestal, when d type latch hook upwards uprightly or downwards fell, two 90 ° of short slot was combined into lock-out state with type dead bolt 6 right angle faces respectively; One semicircle switch 4 is arranged at type dead bolt 6 tops, and the outside of switch is interior hexahedron shape and the groove that is positioned at the pedestal outer wall.By hexahedron pin key switch 4 is rotated, it is fallen following die mould dead bolt 6 and d type latch hook 1 is thrown off, and latch hook rotated put down, and its another 90 ° of short slots combine with type dead bolt 6 right angle faces and make the latch hook locking simultaneously.(torsion spring is connected between semicircle switch 4 and pedestal, and torsion makes the switch type lock dead bolt 6 that automatically resets also rise under spring 7 effects and combine with the latch hook short slot.

The pedestal center upper portion is provided with level bowl 9, and it is joined with the arc bowl seat of pedestal kiss and combines and leave certain interval, after with bolt (leaving the gap equally) can be in the gap about, swing.

Pedestal 5 bottoms are circular chamber 8, and are evenly equipped with the pin hole, with so that hydraulic prop top enters combines closely in it and firmly be connected as a single entity with pin.

As shown in Figure 2, semicircle switch 4 is positioned at pedestal outer wall section 10 and is the hexahedron structure.Pedestal top has the cylinder 2 that uniform top is arc.

As shown in Figure 3, be provided with hidden groove 11 corresponding to d type latch hook 1 on the pedestal, make on the d type latch hook 1 immediately that its underpart (axle sleeve) is positioned at groove, its integral body is positioned at groove when putting down, and prevents entrucking, during carrying, and damages when not installing in the down-hole.

The utility model can be designed to and the hydraulic prop integrative-structure, is about to bottom and hydraulic prop one and gets final product.

Claims

1, a kind of hydraulic prop antifalling locking device, feature of the present utility model is: dead lock pedestal (5) is gone up two the d type latch hooks (1) in order to be connected with articulated roof beam that are provided with of symmetry, and d type latch hook (1) is connected by bearing pin also can be around 180 ° of rotations of bearing pin on the pedestal; D type latch hook (1) bottom has two short slots (3) of joining with dead bolt (6) kiss; Be provided with in the pedestal cooperate with the short slot of d type latch hook (1) make d type latch hook about the dead bolt (6) of two locking positions, the pedestal wall is provided with and makes d type latch hook (1) be positioned at its hidden groove of latch hook (11) downwards when falling.

2, hydraulic prop antifalling locking device according to claim 1 is characterized in that d type latch hook (1) bottom can have two 90 ° of short slots.

3, hydraulic prop antifalling locking device according to claim 1 is characterized in that the dead bolt (6) in the pedestal (5) can be the type dead bolt.

4, hydraulic prop antifalling locking device according to claim 1 is characterized in that the switch (4) that dead bolt (6) top falls dead bolt (6) when one rotation is set, and the outside of switch is positioned at the pedestal outer wall.

5, according to claim 1 or 4 described hydraulic prop antifalling locking devices, the switch (4) that it is characterized in that dead bolt (6) top can be semi-circular, and it is outside for interior hexahedron and be positioned at the groove of pedestal outer wall.