CN112091279A

CN112091279A - Percussion drill with clamping protection structure

Info

Publication number: CN112091279A
Application number: CN202011092691.4A
Authority: CN
Inventors: 孙胜
Original assignee: Yongkang Fulda Tools Co ltd
Current assignee: Yongkang Fulda Tools Co.,Ltd.
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2020-12-18
Anticipated expiration: 2040-10-13
Also published as: CN112091279B

Abstract

The invention discloses a percussion drill with a clamping protection structure, which comprises a percussion drill main body, an auxiliary handle and a main handle, wherein the percussion drill main body is provided with an auxiliary handle rotating shaft, an auxiliary handle rotating shaft limiting ring, a main handle rotating shaft and an auxiliary handle rotating shaft limiting ring, the main handle rotating shaft is provided with a notch, the auxiliary handle is rotatably arranged on the auxiliary handle rotating shaft on the percussion drill main body, and the main handle is rotatably arranged on the main handle rotating shaft on the percussion drill main body. According to the invention, when the percussion drill is suddenly clamped in the operation process, the percussion drill main body continues to rotate, the handle held by a hand does not rotate, and the injury of the person due to the suddenly generated torsion is effectively protected, so that some persons who do not know the operation rules can safely operate the percussion drill.

Description

Percussion drill with clamping protection structure

Technical Field

The invention relates to the technical field of percussion drills, in particular to a percussion drill with a clamping protection structure.

Background

In the present life, many families have a percussion drill to use at ordinary times, but the use of percussion drill has special operating rules, and the people who is not familiar with operating rules generally operate percussion drill and cause the accident very easily, especially when being blocked in percussion drill bit working process, percussion drill self will rotate, and operating personnel both hands are holding percussion drill this moment, and the big moment of torsion that produces suddenly can make operating personnel be injured.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the percussion drill with a clamping protection structure.

In order to solve the technical problems, the invention is solved by the following technical scheme: including percussion drill main part, vice hand (hold) and main handle, there are vice hand (hold) pivot, vice hand (hold) pivot spacing ring, main hand (hold) pivot and vice hand (hold) pivot spacing ring in the percussion drill main part, the notch has been seted up in the main hand (hold) pivot, vice hand (hold) rotate to set up in the vice hand (hold) pivot in the percussion drill main part, the main hand (hold) rotates to set up in the main hand (hold) pivot in the percussion drill main part.

The main handle comprises a main handle ring sleeve, a starting switch, an auxiliary handle linkage plate, a sliding tongue, a first compression spring, an auxiliary handle lock pin and a second compression spring, the auxiliary handle linkage plate and the starting switch are arranged on the main handle ring sleeve, the first ring sleeve on the handle ring sleeve is rotatably arranged on a main handle rotating shaft on the impact drill main body, the main handle ring sleeve is also provided with a sliding tongue hole, a spring hole and a sliding tongue guide post hole, the sliding tongue comprises a sliding tongue pin and a sliding tongue guide post, the sliding tongue guide post is slidably arranged in the sliding tongue guide post hole of the main handle ring sleeve, the sliding tongue pin is slidably arranged in the sliding tongue hole, the first compression spring is slidably arranged on the sliding tongue guide post, the upper end of the first compression spring is in contact with the lower surface of the sliding tongue pin, the lower end of the first compression spring is in contact with the lower end surface of the spring hole, the upper surface of the sliding tongue pin is in contact with a main rotating shaft on the impact drill main handle main body, vice hand (hold) linkage plate front end is provided with the vice hand (hold) lockpin orifice plate of first pair and the vice hand (hold) lockpin orifice plate of second, vice hand (hold) lockpin slides and sets up on the shaft hole of the vice hand (hold) lockpin orifice plate of first pair and the vice hand (hold) lockpin orifice plate of second, just the second compression spring both ends press respectively and touch the vice hand (hold) lockpin orifice plate preceding with the rear end face of the spring limiting plate on the vice hand (hold) lockpin.

The sliding bolt pin is supported and contacted on the notch under the normal state due to the action of the first compression spring, the main handle is fixed on a main handle rotating shaft of the impact drill main body due to the action of the sliding bolt pin, when an impact drill bit is clamped, the impact drill main body can generate larger torque, and the handle is tightly held by an operator and has certain acting force on an impact drill handle, so that the edge of the notch acts on the arc surface of the edge of the sliding bolt pin, and the elastic force of the first compression spring is smaller than the acting force of the operator on the impact drill, so that the sliding bolt pin downwards compresses the first compression spring, finally the sliding bolt pin downwards moves to slide out of the notch, and the operator is protected from being injured.

The auxiliary handle comprises a handle, a locking hole and a second ring sleeve, the second ring sleeve is rotatably arranged on an auxiliary handle rotating shaft on the percussion drill main body, and the front end of an auxiliary handle lock pin on the main handle is slidably arranged in the locking hole.

The auxiliary handle has the advantages that the auxiliary handle can rotate to different positions so as to be suitable for different operating environments, the auxiliary handle is fixedly rotated on the main handle, and when the main handle rotates, the auxiliary handle also rotates along with the main handle, so that both hands can be effectively protected from being injured.

In the above technical scheme, preferably, the bottom of the notch in the percussion drill main body and the sliding tongue on the main handle are both made of conductive materials, the rest are made of non-conductive materials, and the switch wire of the starting switch is connected with the sliding tongue.

The novel impact drill has the beneficial effects that the starting switch can effectively control the rotation of the rotor in the impact drill main body, the phenomenon that the rotor in the impact drill main body is controlled and controlled to rotate by using a lead is avoided, the lead is twisted off to enable the rotor not to work normally under the action of a protection rotating mechanism, and meanwhile, the power can be cut off at the moment that the sliding tongue is separated from the bottom of the notch, so that double-layer protection is carried out on the rotor.

In the above technical scheme, preferably, both sides of the auxiliary handle rotating shaft and the main handle rotating shaft on the percussion drill main body are provided with limiting rings, and the outer diameters of the limiting rings are larger than the inner diameters of the first ring sleeve and the second ring sleeve.

The auxiliary handle and the main handle are fixed on the percussion drill main body in a rotating mode, so that the percussion drill main body can only do rotating motion, and therefore an operator can operate the percussion drill better.

In the above technical solution, preferably, a plurality of locking holes are uniformly distributed on the auxiliary handle. The auxiliary handle has the beneficial effects that the auxiliary handle can be adjusted at different positions, so that an operator can find a most labor-saving handle mode during operation.

Among the above-mentioned technical scheme, it is preferred, evenly distributed has 3 notches in the main handle pivot, just the notch bottom surface is the arc surface, and two side cuts have all fallen great arc angle, the tongue pin upper surface on the tongue is wear-resisting metal material, and is arc, and four sides are the fillet design, and the radius is greater than the notch degree of depth.

The sliding tongue pin has the beneficial effects that the bottom surface arc surface design enables the sliding tongue pin to effectively fix the impact drill main body in normal work, and the large arc angle design is respectively inverted on the four-side arc surface of the sliding tongue pin and two trimming edges of the notch, so that the sliding tongue pin can effectively enter and be separated from the drill bit when the impact drill bit is clamped, and operators are protected.

The invention has the beneficial effects that: the invention provides a percussion drill with a clamping protection structure, which can ensure that when the percussion drill is suddenly clamped in the running process, a main body of the percussion drill continues to rotate, a handle held by a hand does not rotate, so that the injury of the person due to the suddenly generated torsion is effectively protected, and the person who does not know the operation rules can safely operate the percussion drill.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a sectional view of the overall structure of the present invention.

FIG. 3 is a schematic view of a hammer drill body according to the present invention.

Fig. 4 is a sectional view of the main handle shaft of the present invention.

Fig. 5 is a schematic view of the main handle of the present invention.

Fig. 6 is a sectional view of the main handle of the present invention.

Fig. 7 is a schematic view of the locking tongue of the present invention.

Fig. 8 is a schematic view of the secondary handle of the present invention.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1-8, an impact drill with a clamping protection structure comprises an impact drill main body 1, an auxiliary handle 2 and a main handle 3, wherein the impact drill main body 1 is provided with an auxiliary handle rotating shaft 11, an auxiliary handle rotating shaft limiting ring 15, a main handle rotating shaft 12 and an auxiliary handle rotating shaft limiting ring 14, the main handle rotating shaft 12 is provided with a notch 13, the main handle rotating shaft 12 on the impact drill main body 1 is rotatably provided with the main handle 3, and the auxiliary handle rotating shaft 11 on the impact drill main body 1 is rotatably provided with the auxiliary handle 2.

The main handle 3 comprises a main handle ring sleeve 31, a starting switch 32, an auxiliary handle linkage plate 33, a sliding tongue 34, a first compression spring 35, an auxiliary handle lock pin 36 and a second compression spring 37, the auxiliary handle linkage plate 33 and the starting switch 32 are arranged on the main handle ring sleeve 31, the first ring sleeve 314 is rotatably arranged on a main handle rotating shaft 12 on the percussion drill main body 1, a sliding tongue hole 313, a spring hole 312 and a sliding tongue guide post hole 311 are further formed on the main handle ring sleeve 31, the sliding tongue 34 comprises a sliding tongue pin 342 and a sliding tongue guide post 341, the sliding tongue pin 342 is slidably arranged in the sliding tongue hole 313, the sliding tongue guide post 341 is slidably arranged in the sliding tongue guide post hole 311 of the main handle ring sleeve 31, the first compression spring 35 is slidably arranged on the sliding tongue guide post 341, and two ends of the first compression spring respectively contact the lower surface of the sliding tongue pin 342 and the lower end surface of the spring hole 312, the top of the upper surface of the sliding tongue pin 342 is contacted on the main handle rotating shaft 12 on the percussion drill main body 1, the first auxiliary handle lock pin pore plate 331 and the second auxiliary handle lock pin pore plate 332 are arranged at the front end of the auxiliary handle linkage plate 33, the auxiliary handle lock pin 36 is arranged on the shaft holes of the first auxiliary handle lock pin pore plate 331 and the second auxiliary handle lock pin pore plate 332 in a sliding manner, and the two ends of the second compression spring 37 are respectively pressed and contacted on the front end surface of the second auxiliary handle lock pin pore plate 332 and the rear end surface of the spring limiting plate 361 on the auxiliary handle lock pin 36.

The auxiliary handle 2 comprises a handle 21, a locking hole 23 and a second ring sleeve 22, the second ring sleeve 22 is rotatably arranged on an auxiliary handle rotating shaft 11 on the percussion drill body 1, and the front end of an auxiliary handle lock pin 36 on the main handle 3 is slidably arranged in the locking hole 23.

Wherein in the ordinary state, under the action of the first compression spring 35, the tongue-sliding pin 342 is abutted against the notch, and under the action of the tongue-sliding pin 342, the main handle 3 is fixed on the main handle rotating shaft 12 of the percussion drill body 1, so that the percussion drill can normally operate, when the percussion drill bit is blocked, as the rotor in the percussion drill body continues to rotate, the percussion drill body 1 can generate a larger torque, at the moment, as the handle is tightly held by an operator, a certain acting force is exerted on the percussion drill handle, the elastic force of the first compression spring is designed to be smaller than the acting force of the operator on the percussion drill, so that the tongue-sliding pin 342 can compress the first compression spring downwards to enable the first compression spring to move downwards, and finally, the whole tongue-sliding pin 342 slides out of the notch 13, so that the operator can hold the handle to rotate the percussion drill body 1 in the main handle 3, and as the front end of the auxiliary handle lock pin 36 on the main handle 3 is arranged in the locking hole 23 in a sliding manner, the main handle 3 and the auxiliary handle 2 are fixed into a whole, so that the percussion drill body 1 can also rotate in the auxiliary handle 2, and thus, an operator can be effectively protected from being injured.

Preferably, the switch wire of the starting switch 32 is connected with the sliding tongue 34, the notch 13 on the percussion drill body 1 and the sliding tongue 34 on the main handle 3 are both made of conductive materials, and the rest are made of non-conductive materials.

The design can ensure that the power-off protection is carried out at the moment that the sliding tongue 34 is separated from the bottom of the notch 13, and the phenomenon of wire twist-off can be avoided when the percussion drill body 1 is started for protection because no wire is connected.

Preferably, both sides of the auxiliary handle rotating shaft 11 and the main handle rotating shaft 12 on the percussion drill body 1 are provided with limiting rings, and the outer diameters of the limiting rings are larger than the inner diameters of the first ring sleeve 314 and the second ring sleeve 22.

Preferably, a plurality of locking holes 23 are uniformly distributed on the auxiliary handle 2.

Preferably, the upper surface of the sliding tongue pin 342 on the sliding tongue 34 is made of a wear-resistant metal material and is arc-shaped, four sides of the sliding tongue pin are designed to be round corners, the radius of the sliding tongue pin is larger than the depth of the notch, 3 notches 13 are uniformly distributed on the main handle rotating shaft 12, the bottom surfaces of the notches 13 are arc surfaces, and two trimming chamfers are large arc angles.

Wherein under normal operating conditions like this, tongue-sliding pin 342 upper surface and notch 13 bottom surface are closely laminated and both can carry out quick electrically conductive, again can effectual fixed impact drill main part 1, when taking place the drill bit and blocking, the four sides are the fillet design, and the radius is greater than the notch degree of depth, notch 13 bottom surface is the arc surface, and two side cuts the chamfer and be great arc angle, all is favorable to tongue-sliding pin 342 quick separation from notch 13, plays the guard action.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a strike and bore with dead protection architecture of card which characterized in that: the impact drill comprises an impact drill body (1), an auxiliary handle (2) and a main handle (3), wherein the impact drill body (1) is provided with an auxiliary handle rotating shaft (11), an auxiliary handle rotating shaft limiting ring (15), a main handle rotating shaft (12) and an auxiliary handle rotating shaft limiting ring (14), the main handle rotating shaft (12) is provided with a notch (13), the auxiliary handle (2) is rotatably arranged on the auxiliary handle rotating shaft (11) on the impact drill body (1), and the main handle (3) is rotatably arranged on the main handle rotating shaft (12) on the impact drill body (1);

the main handle (3) comprises a main handle ring sleeve (31), a starting switch (32), an auxiliary handle linkage plate (33), a sliding tongue (34), a first compression spring (35), an auxiliary handle lock pin (36) and a second compression spring (37), the auxiliary handle linkage plate (33) and the starting switch (32) are arranged on the main handle ring sleeve (31), a first ring sleeve (314) on the handle ring sleeve (31) is rotatably arranged on a main handle rotating shaft (12) on the impact drill main body (1), the main handle ring sleeve (31) is further provided with a sliding tongue hole (313), a spring hole (312) and a sliding tongue guide post hole (311), the sliding tongue (34) comprises a sliding tongue pin (342) and a sliding tongue guide post (341), the sliding tongue guide post (341) is slidably arranged in a sliding tongue guide post hole (311) of the main handle ring sleeve (31), and the sliding tongue pin (342) is slidably arranged in the sliding tongue hole (313), the first compression spring (35) is arranged on the sliding tongue guide post (341) in a sliding mode, the upper end of the first compression spring is in top contact with the lower surface of the sliding tongue pin (342), the lower end of the first compression spring is in top contact with the lower end surface of the spring hole (312), the upper surface of the sliding tongue pin (342) is in top contact with a main handle rotating shaft (12) on the percussion drill main body (1), a first auxiliary handle lock pin pore plate (331) and a second auxiliary handle lock pin pore plate (332) are arranged at the front end of the auxiliary handle linkage plate (33), the auxiliary handle lock pin (36) is arranged on shaft holes of the first auxiliary handle lock pin pore plate (331) and the second auxiliary handle lock pin pore plate (332) in a sliding mode, and two ends of the second compression spring (37) are in front of the second auxiliary handle lock pin pore plate (332) and the rear end surface of a spring limiting plate (361) on the auxiliary handle lock pin (;

the auxiliary handle (2) comprises a handle (21), a locking hole (23) and a second ring sleeve (22), the second ring sleeve (22) is rotatably arranged on an auxiliary handle rotating shaft (11) on the percussion drill body (1), and the front end of an auxiliary handle lock pin (36) on the main handle (3) is slidably arranged in the locking hole (23).

2. The percussion drill with a jam-safe structure as set forth in claim 1, wherein: notch (13) bottom and the tongue that slides (34) on the main handle (3) on the percussion drill main part (1) are electrically conductive material, and all the other are non-electrically conductive material, notch (13) bottom and percussion drill main part (1) inside rotor have the wire to link, the switch line and the tongue that slides (34) of starting switch (32) are connected.

3. The percussion drill with a jam-safe structure as set forth in claim 1, wherein: limiting rings are arranged on two sides of an auxiliary handle rotating shaft (11) and a main handle rotating shaft (12) on the percussion drill main body (1), and the outer diameters of the limiting rings are larger than the inner diameters of a first ring sleeve (314) and a second ring sleeve (22).

4. The percussion drill with a jam-safe structure as set forth in claim 1, wherein: a plurality of locking holes (23) are uniformly distributed on the auxiliary handle (2).

5. The percussion drill with a jam-safe structure as set forth in claim 1, wherein: evenly distributed has 3 notch (13) on main handle pivot (12), just notch (13) bottom surface is the arc surface, and two side cuts and all fall great arc angle, tongue-sliding pin (342) upper surface on tongue-sliding (34) is wear-resisting metal material, and is arc, and the four sides are the fillet design, and the radius is greater than the notch degree of depth.