CN2197177Y - Shocked spanner - Google Patents

Abstract

The utility model relates to a dynamic force shocked spanner. The utility model poses the dynamic force shocked spanner which provides the improvement for the stressed state of a transmission shaft and a hollow case and the service performance of the spanner. The dynamic force shocked spanner is composed of a machine body, a motor, the hollow case, two shocked elements, the transmission shaft and two pieces of root cutting pins. A starting knob is arranged on the machine body. The motor is parked in the machine body. A gilled ring which separates the hollow case into two shocked cavities is arranged on the hollow case. A bearing hole which is on the gilled ring contains the abutting end of two fan-like anvil blocks which are on the transmission shaft. The two shocked elements are sheathed at the place of the fan-like anvil block of the transmission shaft, and the two shocked elements are respectively parked in the two shocked cavities. The two root cutting pins pass through the inserting pin hole of the hollow case, and the two root cutting pins are respectively parked in the groove and the displacement groove of the two shocked elements.

Description

Shocked spanner

The utility model belongs to hand tools, particularly a kind of power beating type spanner.

The power beating type spanner of commonly using, as shown in Figure 7, in body 1, be provided with motor 12, and hollow housing 13 is housed on the output shaft of motor 12, during use, press startup button 11, motor 12 drives hollow housings 13 and connected two strike elements 14 rotate, the fan-shaped anvil piece 151,152 of power transmission shaft on 15 with its with hit element 14 and cooperate, and by strike element 14 driven rotary.As shown in Figure 5, this power beating type spanner has body 1, motor 12, the hollow housing 13 of fixedlying connected with motor 12 output shafts, two are hit element 14, power transmission shaft 15 and two latches 16, hollow shell 13 is provided with a cavity 131, two pin holes 132 and output shaft hole 133, be arranged with the fan-shaped anvil piece 151 that is mutual separate state on the power transmission shaft 15,152, two hit element be respectively equipped with power transmission shaft 15 on the fan-shaped anvil piece 151 that is mutual separate state that is arranged with, 152 through hole and latch grooves that coincide, be enclosed within the fan-shaped anvil piece 151 of power transmission shaft 15 respectively, 152 places also place in the cavity 131 of hollow housing 13 simultaneously, two latches 16 insert two pin holes, 132 interior also being stuck in separately in each latch groove that hits element 14 of hollow housing 13, and strike element 14 is located in the cavity 131 of hollow housing 13.Because being separate state and hitting element 14 with two, the fan-shaped anvil piece 151,152 that power transmission shaft 15 is arranged with places in the hollow housing 13 that has only a cavity 131, not only two of power transmission shaft 15 fan-shaped anvil pieces 151,152 adjacent cross sections are weakest link and make hollow housing 13 can't bear powerful torsion, cause after long-time use and very easily be damaged, and owing to two strike elements 14 place in the cavity 131 simultaneously, because of frictional force between two strike elements 14 influences serviceability.

The purpose of this utility model provides a kind of power beating type spanner that improves power transmission shaft and hollow housing stress and spanner serviceability.

The utility model is by body, motor, hollow housing, two are hit element, power transmission shaft and two latches are formed, body is provided with the startup button, motor places in the body, hollow housing is provided with gilled rings and hollow housing is divided into two blow cavities, the back side panel of hollow housing is provided with the axis hole of fixedlying connected with motor output shaft, the front side board and the gilled rings of hollow housing are provided with support holes, and on hollow housing two end side panels and gilled rings, be arranged with the pin hole of coaxial line respectively, be arranged with the fan-shaped anvil piece that is mutual separate state on the power transmission shaft, two are hit elements on either side and are respectively equipped with axial notch and displacement groove, and be provided with power transmission shaft on the through hole that matches of the fan-shaped anvil piece place that is arranged with, the axis hole of hollow housing is fixedlyed connected with motor output shaft, cardan-shaft suspension is in the front side board and the support holes on the gilled rings of hollow housing, and make support holes on the gilled rings contain the abutting end of two fan-shaped anvil pieces, two are hit element and are enclosed within the fan-shaped anvil piece place of power transmission shaft respectively and place respectively in two blow cavities of hollow housing, before two latches pass hollow housing, pin hole on back side panel and the gilled rings also lays respectively at the axial notch that hits element, displacement groove and displacement groove, in the groove.

Because the utility model is made up of body, motor, hollow housing, two strike elements, power transmission shaft and two latches, be provided with the gilled rings that hollow housing is divided into two blow cavities and contains two fan-shaped anvil piece abutting ends on the power transmission shaft on the hollow housing, not only improved the stress condition of power transmission shaft and hollow housing, make it not fragile, and prevent that two hit contact friction between the element, improve serviceability, thereby reached the purpose of this utility model.

Fig. 1 is the utility model decomposition texture schematic isometric;

Fig. 2 is the utility model structural representation stereogram;

Fig. 3 is the utility model action schematic diagram;

Fig. 4 is the utility model action schematic diagram;

Fig. 5 is the utility model action schematic diagram;

Fig. 6 is for commonly using spanner decomposition texture schematic isometric;

Fig. 7 is for commonly using the spanner structure schematic isometric.

Below in conjunction with accompanying drawing the utility model is further elaborated.

As shown in Figure 1 and Figure 2, the utility model by body 2, motor 22, hollow housing 23, two hit element 24, power transmission shaft 25 and two latches 26 and form, body 2 is provided with startup button 21, motor 22 places in the body 2; Hollow housing 23 is provided with gilled rings 231, and hollow housing 23 is divided into two blow cavities 232, the pin hole 2331,2341 and 2311 that the forward and backward side plate 233,234 of hollow housing 23 and gilled rings 231 are provided with two coaxial lines, and on back side panel 234, be provided with axis hole 2342, on front side board 233 and gilled rings 231, be provided with support holes 2332,2312; Be arranged with the fan-shaped anvil piece 251,252 that is separate state on the power transmission shaft 25 respectively; Two are hit element 24 both sides and are respectively equipped with axial notch 241 and displacement groove 242, and be provided with respectively with power transmission shaft 25 on the fan-shaped anvil piece 251 that is arranged with, the through hole 243 that 252 places match, the axis hole 2342 of hollow housing 23 is fixedlyed connected with the output shaft of motor 22, power transmission shaft 25 is bearing in the support holes 2332 and 2312 of hollow housing front side board 233 and gilled rings 231, and the two fan-shaped anvil pieces 251 that make the support holes 2312 on the gilled rings 231 contain on the power transmission shaft 25,252 abutting end, two are hit the fan-shaped anvil piece 251 that element 24 is enclosed within power transmission shaft 25 respectively, 252 places also place respectively in two blow cavities 232 of hollow housing 23, and two latches 26 pass the back side panel 234 of hollow housing 23 successively, pin hole 2341 on gilled rings 231 and the front side board 233,2311 and 2331 and lay respectively at two grooves that hit elements 24, displacement groove and displacement groove, in the groove.

During use, press and start button 21, motor 22 drives hollow housing 23 and rotates, as shown in Figure 3, two hit elements 24 is positioned at respectively with two latches 26 in two blow cavities 232 of hollow housing 23, and two hit elements 24, latch 26 with hollow housing 23 rotations, when hitting a little 2431 when hitting the fan-shaped anvil piece 251 of power transmission shaft 25 on the through hole 243 that hits element 24, hit power transmission shaft 25 and rotate thereupon, operation element (as screw, bolt etc.) is screwed; When operation element rotation is obstructed when having screwed (as meet with obstruction or) as shown in Figure 4, the fan-shaped anvil piece 251 of power transmission shaft 25 compresses with reaction force and hits element 24, hit element 24 and bear an eccentric force, making and hitting element 24 is fulcrum to place the latch 26 in the groove 241, the displacement groove 242 that makes its opposite side is along placing the latch 26 in it to move right, what fan-shaped anvil piece 251 is broken away from hit elements 24 hits a little 2431, and power transmission shaft 25 no longer rotates; As shown in Figure 5, rotate on it and to hit a little 2432 when hitting the opposite side of fan-shaped anvil piece 251 of power transmission shaft 25 on through hole 243 when hitting element 24, fan-shaped anvil piece 251 compress hit element 24 hit a little 2432, making and hitting element 24 is fulcrum to place the latch 26 in the groove 24, the displacement groove 242 that makes its opposite side is along placing its interior latch 26 to moving to left, what fan-shaped anvil piece 251 is broken away from hit elements 24 hits a little 2432, power transmission shaft 25 does not still rotate, when the resistance of operation element is eliminated, hit element 24 once more with its hit a little 2431 hit on the power transmission shaft 25 fan-shaped anvil piece 251 time, power transmission shaft 25 rotates once more to screw operation element.

Claims (1)

1, power beating type spanner, it is made up of body, motor, hollow housing, two strike elements, power transmission shaft and two latches, and body is provided with the startup button; Motor places in the body; Be arranged with the fan-shaped anvil piece that is mutual separate state on the power transmission shaft; Two are hit elements on either side and are respectively equipped with axial notch and displacement groove, and be provided with power transmission shaft on the through hole that matches of the fan-shaped anvil piece place that is arranged with; Two latches pass the pin hole on the hollow housing and lay respectively in the axial notch, displacement groove and the displacement groove that hit element, the groove, it is characterized in that described hollow housing is provided with gilled rings, and hollow housing is divided into two blow cavities, the hollow housing back side panel is provided with axis hole, hollow housing gilled rings and front side board are provided with support holes, hollow housing is fixedly mounted on the motor output shaft through axis hole, cardan-shaft suspension and makes support holes on the gilled rings contain the abutting end of two fan-shaped anvil pieces in the support holes of hollow housing gilled rings and front side board; Two strike elements are enclosed within the fan-shaped anvil piece place of power transmission shaft respectively, and place respectively in two blow cavities of hollow housing.

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