SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the screwdriver aims at solving the problems that the types of screw heads on the existing compressor are more, various screwdrivers need to be prepared during dismounting, and the dismounting efficiency is influenced.
In order to solve the technical problem, an embodiment of the present invention provides a screwdriver, including a base and a plurality of tool bit assemblies, wherein the plurality of tool bit assemblies are radially arranged along an outer edge of the base;
the tool bit assembly comprises a tool bit, a tool bit connecting piece and a push-pull assembly, one end of the tool bit connecting piece is connected to the base, the other end of the tool bit connecting piece is provided with an accommodating cavity, the tool bit is arranged in the accommodating cavity, the push-pull assembly can drive the tool bit to move outwards along the accommodating cavity, and the tool bit of at least two tool bit assemblies is different in flower type.
Optionally, the cutter head comprises a cutter head body and a cutter head part connected to the cutter head body, and the cutter head body and at least part of the cutter head part are arranged in the accommodating cavity.
Optionally, the cross-sectional shape of the tool bit body is the same as that of the accommodating cavity, and the cross-sectional shape of the tool bit body is an ellipse or a polygon.
Optionally, the tool bit portion is a cross tool bit, a straight tool bit, a hexagonal tool bit, a triangular tool bit or a hexagonal tool bit.
Optionally, the push-pull assembly includes a push-pull button, the push-pull button includes a pressing portion and a connecting portion connected to the pressing portion, the pressing portion abuts against the tool bit connecting member, a sliding groove communicated with the accommodating cavity is formed in the tool bit connecting member, a connecting groove is formed in the tool bit, the connecting portion penetrates through the sliding groove and is connected to the connecting groove, the pressing portion is pushed, the connecting portion can move along the sliding groove, and the tool bit is driven to move in the accommodating cavity.
Optionally, the cutter head assembly further comprises a spring and a positioning ball, the cutter head is provided with an accommodating cavity, the spring and the positioning ball are arranged in the accommodating cavity, and the positioning ball can protrude out of the accommodating cavity and extend into the chute;
the tool bit connecting piece is provided with a stop block, the stop block is arranged at one end, far away from the base, of the sliding groove, a positioning hole is formed in the stop block, the connecting portion moves outwards along the sliding groove, and the positioning ball can enter the positioning hole.
Optionally, a side of the stopper facing the base has a guide surface capable of guiding the positioning ball to move toward the inside of the accommodating chamber.
Optionally, the push-pull assembly further comprises an unlocking button, and the unlocking button is fixedly or integrally connected to the push-pull button.
Optionally, the unlocking button comprises an unlocking portion and a butting portion, the unlocking portion butts against the tool bit connecting piece, the butting portion extends into the sliding groove, the unlocking portion can drive the butting portion to move towards the positioning ball, and therefore the positioning ball is pushed out of the positioning hole and enters the accommodating cavity.
Optionally, the base is pentagonal in cross-sectional shape, the number of the cutter head assemblies is five, and each cutter head assembly is correspondingly connected to one side surface of the base.
The embodiment of the utility model provides a screwdriver, through with a plurality of the tool bit subassembly is connected on the base, with the tool bit integration of multiple difference on an instrument, need not prepare various screwdriver instruments because the screw head is of many kinds, improve dismouting efficiency and degree of accuracy greatly, solved when dismantling multiple screw head prepare the work load in earlier stage big and frequently change the problem that work efficiency is low that the screwdriver caused at the dismouting in-process, in addition, through the push-and-pull subassembly can be with needs the tool bit is followed release in acceping the chamber, solved and carried the too big problem of in-process screwdriver volume, and can prevent at the dismouting in-process with other tool bits between mutual interference.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 6, an embodiment of the present invention provides a screwdriver, which includes a base 1 and a plurality of tool bit assemblies 2, and the tool bit assemblies 2 are radially arranged along the outer edge of the base 1. The cutter head assembly 2 comprises a cutter head 21, a cutter head connecting piece 22 and a push-pull assembly, one end of the cutter head connecting piece 22 is connected to the base 1, the other end of the cutter head connecting piece 22 is provided with an accommodating cavity 221 with an opening at one end, the cutter head 21 is arranged in the accommodating cavity 221, the push-pull assembly can drive the cutter head 21 to move outwards along the accommodating cavity 221, so that the cutter head 21 can extend out of or retract back from the accommodating cavity 221, the cutter heads 21 of at least two cutter head assemblies 2 are different in flower type, and screws of corresponding types can be detached or installed after the cutter head 21 extends out.
The embodiment of the utility model provides a screwdriver, through with a plurality of tool bit subassembly 2 is connected on base 1, with the tool bit 21 integration of multiple difference on a tool, need not prepare various screwdriver instruments because the screw head is of many kinds, improve dismouting efficiency and degree of accuracy greatly, solved when dismantling multiple screw head prepare the work load in earlier stage big and frequently change the problem that work efficiency is low that the screwdriver caused in the dismouting in-process, in addition, through the push-and-pull subassembly can be with needs the tool bit 21 is followed it releases to accept in the chamber 221, has solved and has carried the bulky problem of in-process screwdriver, and can prevent at the dismouting in-process with other mutual interference between the tool bit 21.
In an embodiment, as shown in fig. 2 and 3, the tool bit 21 includes a tool bit body 211 and a tool bit portion 212 connected to the tool bit body 211, the tool bit body 211 and at least a portion of the tool bit portion 212 are disposed in the receiving cavity 221, and the tool bit portion 212 is connected to the receiving cavity 221 of the tool bit connector 22 through the tool bit body 211.
In an embodiment, as shown in fig. 2 and 3, the cross-sectional shape of the bit body 211 is the same as the cross-sectional shape of the receiving cavity 221, the cross-sectional shape of the bit body 211 is an ellipse or a polygon, and the polygon may be, but is not limited to, a triangle, a quadrangle, a pentagon and a hexagon, and by providing the same cross-sectional shapes of the bit body 211 and the receiving cavity 221, the rotation of the bit 21 relative to the bit connector 22 can be limited, and the removal of screws by the bit 21 is not affected.
In one embodiment, the tool head 212 is a cross tool, a straight tool, a hexagonal tool, a triangular tool, or a hexagonal-pattern tool. The plurality of tool heads 212 may be provided in different patterns, or the plurality of tool heads 212 may have the same pattern with the same type and different sizes.
In an embodiment, as shown in fig. 2 and 5, the push-pull assembly includes a push-pull button 23, the push-pull button 23 includes a pressing portion 231 and a connecting portion 232 connected to the pressing portion 231, the pressing portion 231 abuts against the tool bit connector 22, the tool bit connector 22 is provided with a sliding slot 222 communicated with the receiving cavity 221, the sliding slot 222 is arranged along an extending direction of the tool bit connector 22, a width of the pressing portion 231 is greater than a width of the sliding slot 222, the pressing portion 231 cannot enter the sliding slot 222, the tool bit body 211 of the tool bit 21 is provided with a connecting slot 213, a profile of the connecting slot 213 is adapted to a profile of the connecting portion 232, the connecting portion 232 can pass through the sliding slot 222 and be connected to the connecting slot 213, the pressing portion 231 is pushed, the connecting portion 232 can move along the sliding slot 222, and the tool bit 21 is further moved in the receiving cavity 221.
In an embodiment, as shown in fig. 3 and 5, the push-pull assembly further includes a connection bolt 24, a first connection hole penetrating through the pressing portion 231 and the connection portion 232 is formed on the push-pull button 23, a second connection hole is formed on the tool bit 21, the second connection hole is communicated with the connection groove 213, the second connection hole penetrates through the tool bit 21 from the bottom of the connection groove 213, and after the connection portion 232 is inserted into the connection groove 213, the connection bolt 24 penetrates through the first connection hole and is screwed into the second connection hole, so as to fixedly connect the push-pull button 23 to the tool bit 21.
In an embodiment, as shown in fig. 2, 3 and 5, the cutter head assembly 2 further includes a spring 26 and a positioning ball 27, the cutter head body 211 of the cutter head 21 is provided with a receiving cavity 214, the receiving cavity 214 is located at one side of the connecting groove 213, the spring 26 and the positioning ball 27 are disposed in the receiving cavity 214, and the positioning ball 27 can protrude out of the receiving cavity 214 and extend into the sliding groove 222. Specifically, the lower half portion of the positioning ball 27 is disposed in the accommodating cavity 214, the upper half portion of the positioning ball 27 protrudes into the sliding groove 222, and the positioning ball 27 can move along the sliding groove 222 when the connecting portion 232 drives the cutter head 21 to move outwards along the accommodating cavity 221.
As shown in fig. 2 and 6, the tool bit connector 22 is provided with a stopper 3, the stopper 3 is disposed at an end of the sliding groove 222 away from the base 1, the stopper 3 can block the push-pull button 23 to prevent the push-pull button 23 from being separated from the tool bit connector 22, the stopper 3 is provided with a positioning hole 31, the connecting portion 232 moves outwards along the sliding groove 222, the positioning ball 27 can enter the positioning hole 31, at this time, the moving distance of the tool bit 21 in the housing cavity 221 is maximized, the position of the tool bit 21 can be positioned by the cooperation of the positioning ball 27 and the positioning hole 31, the tool bit 21 is prevented from being separated from the housing cavity 221, and the tool bit 21 can be prevented from retracting into the housing cavity 221 when the screw is removed from the tool bit 21.
In an embodiment, as shown in fig. 6, the stopper 3 has a guide surface 32, the guide surface 32 is used for guiding the positioning ball 27 to move towards the inside of the accommodating cavity 214, when the push-pull button 23 drives the cutter head 21 to move outwards, the positioning ball 27 first contacts the guide surface 32, the guide surface 32 is an inclined surface, an included angle between the guide surface 32 and a central axis of the cutter head 21 is an acute angle, the positioning ball 27 can move along the guide surface 32 along with the movement of the cutter head 21, and is simultaneously pressed by the guide surface 32, the positioning ball 27 gradually presses the spring 26 until the positioning ball 27 is completely accommodated in the accommodating cavity 214, when the positioning ball 27 moves to the positioning hole 31 along with the movement of the cutter head 21, under the elastic force of the spring 26, the spring 26 can push the positioning ball 27 to move upwards and enter the positioning hole 31, and the positioning ball 27 is clamped by the positioning hole 31, the cutter head 21 moves outwards, so as to position the cutter head 21.
In one embodiment, as shown in fig. 2, the push-pull assembly further includes an unlocking button 25, the unlocking button 25 is fixed or integrally connected to the push-pull button 23, and pressing the unlocking button 25 can push the positioning ball 27 out of the positioning hole 31 and be accommodated in the accommodating cavity 214, so that the connecting portion 232 can move inwards along the sliding groove 222.
In an embodiment, as shown in fig. 5, the unlocking button 25 includes an unlocking portion 251 and an abutting portion 252, the width of the unlocking portion 251 is greater than the width of the sliding slot 222, the unlocking portion 251 is disposed above the sliding slot 222, the abutting portion 252 is disposed in the sliding slot 222, and the abutting portion 252 is located above the positioning ball 27, when the tool bit 21 is retracted, the unlocking portion 251 is pressed to drive the abutting portion 252 to move toward the positioning ball 27, the abutting portion 252 pushes the positioning ball 27 to press the spring 26, so that the positioning ball 27 is pushed out from the positioning hole 31, the clamping of the positioning hole 31 to the positioning ball 27 is released, and the push-pull button 23 is pulled to pull the tool bit 21 into the receiving cavity 221.
In one embodiment, as shown in fig. 1, the base 1 has a pentagonal cross-sectional shape, five cutter head assemblies 2 are provided, and each cutter head assembly 2 is correspondingly connected to one side surface of the base 1, so that various effects of integrating the cutter head 21 on the base 1 can be achieved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.