CN2192416Y - Louver apparatus - Google Patents

Abstract

The utility model provides an opening apparatus, which is suitable for the opening of the thin plates. The opening apparatus comprises screw bolts which are provided with the convex and the concave grooves of the opening which can correspondingly move; the axial direction of the convex and the concave dies of the opening is positioned by screw nuts; the screw bolts are also provided with the driving sleeve of the ratchet wheel which is matched with the screw bolts and can rotate in the clockwise direction and the anticlockwise direction, and the screw bolts are provided with a passive spiral sleeve which is connected with the driving sleeve of the ratchet wheel through transmission and is matched with the screw bolts; the ratchet wheel is actively sheathed in the ratchet wheel seat and is supported by a bearing which is arranged on the screw bolts; the rotating direction of the driving sleeve of the ratchet wheel is controlled by a reversing pin which is arranged in a reversing pin seat which is fixedly connected with the ratchet wheel seat; the reversing pin is downwards connected with a reversing handle, and the ratchet wheel seat is provided with a fixed handle.

Description

Louver apparatus

The utility model relates to a kind of specific purpose tool of processing slim sheet material, particularly a kind of hole making drill of processing slim plate hole.

In building construction or electric installation process, often need pass in and out line aperture or position etc. as changing distribution box (cabinet) at present to the bigger hole of slim sheet material processing.Usually all be to file with file to repair processing, efficient is low, and is of poor quality, or adopt the electronic hole making drill of import to process, and this is a kind of rotary cut processing of supporting special cutlery, and noise is big during operation, and the aperture edge of leaving is jagged.Above-mentioned two kinds of tool processes all have a common disadvantage, add to produce that many metals are useless to be cut this and cause many troubles for electric installation man-hour.

The purpose of this utility model is the processing to slim plate hole, and particularly the processing in hole, large aperture provides a kind of easy, practical manual drilling tool.

The utility model provides a kind of hole making drill, comprise bolt, bolt be provided with can relative motion the perforate punch-die, axially locating of perforate punch-die by nut, also be provided with matching can initiatively overlapping on the bolt along the ratchet that rotates counterclockwise, initiatively overlap the passive screw-casing that is in transmission connection and match with ratchet with bolt, ratchet initiatively is sleeved in the pawl seat, and by the bearing supporting that is arranged on the bolt, the rotation direction that ratchet initiatively overlaps is by the control of commutation pin, the commutation pin is arranged in the commutation key seat that is connected with pawl seat, connects reversing handle under the commutation pin, and pawl seat is provided with fixed handle.The internal diameter of the external diameter of perforate punch and perforate die treats that with sheet material the perforate aperture is identical, size according to sheet material institute perforate aperture, can produce the perforate punch-die that a series of sizes are coincide with it, select for use for specifically adding man-hour, it between the perforate punch-die specific size movingly, take off nut, the slim sheet material that is drilled with its aperture aperture identical with the bolt external diameter is contained between the perforate punch-die, tighten up with nut, hold reversing handle and fixed handle shakes, commutation pin drive ratchet initiatively overlaps and clockwise rotates, the passive screw-casing that is in transmission connection is with it rotated counterclockwise, and bolt obtains climbing power thus and passes to the perforate punch, when external force progressively increases, the perforate punch cooperates the cutting force that becomes sheet material with the perforate die, up to the plate hole excision forming.Ratchet initiatively overlap and passive screw-casing between motion pay transmission by spiral.

Above-mentioned pawl seat is with the pawl seat lid outward, and the commutation key seat is fixedlyed connected with the ratchet flap, is welded to connect between the two, and commutation pin bottom is sleeved in the reversing handle, is set with reversing cover between commutation key seat and the reversing handle, and reversing cover is connected by pin and commutation pin.The inside and outside reversing cover that rotates makes it can to drive the commutation pin for 180 ° along key seat and the reversing handle rotation that commutates and also rotates 180 °, thereby changes the rotation direction that ratchet initiatively overlaps.

Be provided with spring between above-mentioned commutation pin and the commutation key seat, spring is spacing by step on the commutation pin and commutation key seat.Reversing cover moved down just can make it to rotate 180 °, rotate thereby drive the commutation pin, after reversing cover stopped operating, reversing cover can self-return under the effect of spring.

Above-mentioned bearing is installed in the bearing block, has been welded to connect connector at the outer surface of bearing block and ratchet flap, has the hole on the connector, is fixed with fixed handle in the hole.So that hand grips hole making drill.

The working face of above-mentioned perforate punch inwardly is recessed into the hemispherical cambered surface, and along round-formed three the equilateral axial circular arc blades of external diameter, the junction of wherein per two circular arc blades forms cut point, and the remainder of circular arc blade is the extension of cut point.

There is an angle α intersection of above-mentioned nut and perforate punch, α=45 °.Thereby the concentricity in the time of can adjusting perforate punch and the perforate of perforate die automatically.

During hole making drill work, two hand branches are held hole making drill reversing handle and fixed handle and are shaken, thereby drive commutation pin promotion ratchet initiatively overlaps to be rotated in the forward and drives passive screw-casing reverse rotation rising thus, bolt obtains climbing power thus and passes to the perforate punch, because the given shape of the circular arc blade of perforate punch makes itself and sheet material form dotted line and contacts, when external force progressively increases, cooperate the cutting force that becomes sheet material with the perforate die, up to the plate hole excision forming.After perforate finishes, therefore reversing cover on the reversing handle moved down inwardly or outward rotate 180 ° again and drive commutation and sell also Rotate 180 °, reversing cover automatically resets under the effect of spring, shake fixed handle or reversing handle again, the work in the other direction of commutation this moment pin, the promotion ratchet initiatively overlaps and is rotated counterclockwise, thereby passive screw-casing is turned clockwise and descend, make the perforate punch withdraw from the perforate die, take off nut and perforate punch from bolt, take out the sheet material that perforate die inscribe is cut off, perforate work finishes.

The iron and steel sheet and plate that the utility model suitable thicknesses 2.5mm is following, copper aluminium plate about 5mm and plastic sheet etc., its bore size only needs to change the perforate punch-die of corresponding size between φ 15～φ 60mm.

The utility model volume is little, and is in light weight, easy to carry, and working environment is flexible, both can perforate on big parts, also can be fixed on the pincers platform, and make widget perforate work more convenient laborsaving, can cooperate other means as saw again, the different hole of file machining shape.The utility model rapid operation, perforate precision height, the aperture does not have distortion, and operating rate is fast, work efficiency is high, noiseless does not have useless cutting, and is safe and reliable, safeguards very easy, economic performance is good, and in electrical engineering, field of machining can be extensive use of, and is easy, practical artificial drilling tool.

Describe an embodiment of the present utility model in detail below in conjunction with accompanying drawing.

Fig. 1 assembly structure schematic diagram of the present utility model

Fig. 2 is that the A of Fig. 1 is to view.

With reference to figure 1～Fig. 2, the utility model comprises bolt 1, bolt 1 is a special bolt, there is nut formed integrally therewith the one end, be equipped with on the bolt 1 can relative motion perforate punch-die 2,3, the internal diameter of the external diameter of perforate punch 2 and perforate die 3 treats that with sheet material the perforate aperture is identical, perforate punch-die 2, size relationship between 3 is specific size movingly, perforate punch-die 2,3 axially locate by the nut 4 that is threaded with bolt 1, the working face of perforate punch 2 inwardly is recessed into the hemisphere arcwall face, and form three equilateral axial circular arc blades along the external diameter circumference, the junction of wherein per two circular arc blades forms cut point, the remainder of circular arc blade is the extension of cut point, and nut 4 has an angle α with the intersection of perforate punch 2, α=45 °.On bolt 1, also be provided with the ratchet that can suitable rotate counterclockwise with matching and initiatively overlap 5, initiatively overlap passive screw-casing 6 that 5 worm drive are connected and that match with bolt 1 with ratchet, ratchet initiatively overlaps 5 and is contained in the pawl seat 7, and by bearing 8 supportings that are arranged on the bolt 1, the pawl seat 7 outer pawl seat lids 9 that are with, ratchet initiatively overlaps 6 rotation direction by 10 controls of commutation pin, commutation pin 10 is arranged in the commutation key seat 11 that is welded to connect with ratchet flap 9, commutation pin 10 bottoms are sleeved in the reversing handle 12, be set with reversing cover 13 between commutation key seat 11 and the reversing handle 12, reversing cover 13 is connected by pin 14 and commutation pin 10, be provided with spring 15 between commutation pin 10 and commutation key seat 11, spring 15 is spacing by step on the commutation pin 10 and commutation key seat 11.Bearing 8 places and is sleeved on ratchet and initiatively overlaps in the bearing block 16 on 5, left bearing is located by the step that bearing block 16 bottoms and ratchet initiatively overlap on 5, right bearing is located by step and bearing adjustment lid 17 that ratchet initiatively overlaps on 5, the end play of bearing 8 is regulated by bearing adjustment lid 17, left and right bearing block 16 is respectively by the perforate die 3 and the nut location of making one with bolt 1, on left and right bearing block 16 and ratchet flap 9, be welded to connect connector 18, have the hole on the connector 18, be fixed with fixed handle 19 in the hole.

Claims (6)

1, a kind of hole making drill, it is characterized in that comprising bolt, bolt be provided with can relative motion the perforate punch-die, axially locating of perforate punch-die by nut, also be provided with matching can initiatively overlapping on the bolt along the ratchet that rotates counterclockwise, initiatively overlap the passive screw-casing that is in transmission connection and matches with ratchet with bolt, ratchet initiatively is sleeved in the pawl seat, and by the bearing supporting that is arranged on the bolt, the rotation direction that ratchet initiatively overlaps is by the control of commutation pin, the commutation pin is arranged in the commutation key seat that is connected with pawl seat, connects reversing handle under the king pin, and pawl seat is provided with fixed handle.

2, hole making drill according to claim 1, it is characterized in that described pawl seat is with the pawl seat lid outward, commutation key seat and ratchet flap are connected, and commutation pin bottom is sleeved in the reversing handle, be set with reversing cover between commutation key seat and the reversing handle, reversing cover is connected by pin and commutation pin.

3, hole making drill according to claim 1 is characterized in that being provided with spring between described commutation pin and the commutation key seat, and spring is spacing by step on the commutation pin and commutation key seat.

4, hole making drill according to claim 1 is characterized in that described bearing is installed in the bearing block, has been welded to connect connector at the outer surface of bearing block and ratchet flap, has the hole on the connector, is fixed with fixed handle in the hole.

5, hole making drill according to claim 1, the working face that it is characterized in that the perforate punch inwardly is recessed into the hemispherical cambered surface, and along round-formed three the equilateral axial circular arc blades of external diameter, the junction of wherein per two circular arc blades forms cut point, and the remainder of circular arc blade is the extension of cut point.

6, hole making drill according to claim 1 is characterized in that there is an angle α intersection of described nut and perforate punch, α=45 °.

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