CN203156716U

CN203156716U - Quick-disassembling structure between machine head and machine body of electric tool

Info

Publication number: CN203156716U
Application number: CN 201320196904
Authority: CN
Inventors: 陈会甫
Original assignee: NINGBO HANPU TOOLS CO Ltd
Current assignee: NINGBO HANPU TOOLS CO Ltd
Priority date: 2013-04-17
Filing date: 2013-04-17
Publication date: 2013-08-28
Anticipated expiration: 2023-04-17

Abstract

The utility model discloses a quick-disassembling structure between a machine head and a machine body of an electric tool, with high connecting strength and simple structure. The quick-disassembling structure is characterized in that an operating ring (1), a first connector (4) and a second connector (6) are coaxially sheathed and connected in sequence from outside to inside; the first connector (4) is provided with openings (7) which are horizontally arranged and are equal to connecting rods (2) in quantity; the openings (7) are used for enabling the parts between the two ends of the connecting rods (2) to enter and exit the inner part of the first connector (4); the inner wall of the operating ring (1) is provided with two grooves (8) which are inclined relative to the axis and are used for driving the parts between the two ends of the connecting rods to do horizontal and translational movement along the openings (7) in the process of relative axial movement between the operating ring (1) and the first connector (4); the two grooves (8) are respectively in sliding matching with one end of each connecting rod (2); and the outer wall of the second connector (6) is provided with a groove (9) which is horizontally arranged.

Description

Fast assembling disassembling structure between the head of electric tool and fuselage

Technical field

The utility model relates to the electric tool technical field, specifically is fast assembling disassembling structure between a kind of head of electric tool and fuselage.

Background technology

A kind of electric tool is arranged at present, it comprises fuselage and head, fuselage is connected with head is removable, has drive motors in the fuselage, drive motors is delivered to power by transmission component the work package of head, and then make work package produce rotation or shake, by connecting different heads, electric tool can be realized different functions, for example: polishing, polishing, sanding, curvilinear cut, boring, root out etc., therefore, fast assembling disassembling structure is one of design focal point between the head of electric tool and fuselage, these structural design main points are for realizing that fuselage is connected and dismounting with the quick of head, fuselage is with after head is connected, and in use, this structure should guarantee effectively to be connected reliably between fuselage and head, be that bonding strength should be high, simultaneously, structure should be simple as far as possible, though prior art provides fast assembling disassembling structure between the head of multiple electric tool and fuselage, when but bonding strength improved, structure was complicated.

The utility model content

The technical problems to be solved in the utility model is to provide a kind of bonding strength height, fast assembling disassembling structure between the head of electric tool simple in structure and fuselage.

The technical solution of the utility model is, fast assembling disassembling structure between the head of the utility model electric tool and fuselage, it comprises operation ring, at least one connecting rod, be located at first connector of head, be located at second connector of fuselage, operation ring, first connector, second connector are operated between ring, first connector, second connector and all can be moved to axial from socket in regular turn and coaxial line outside to inside; First connector is provided with the opening of the horizontally set that equates with connecting rod quantity, inside and outside open communication first connector, part between two of connecting rod is slidingly matched with opening, opening is used for passing in and out the first connector inside for the part between two of connecting rod, the inwall of operation ring be provided with two that operation ring and first connector be used for driving connecting rod to axial in the motion process along the opening translational sideways movement with two grooves that with respect to described axis are obliquely installed of realization connecting rod integral body along the opening translational sideways movement, two grooves are slidingly matched with of connecting rod respectively; The second connector outer wall is provided with the groove of horizontally set, and groove is used for being dynamically connected two of bar during to the first connector inner transverse translational thrust when troughed belt, the part of the part between two of final connecting rod or all will snap in groove.

The utility model operation principle is, promote the operation ring, operation ring and first connector are moved to axial, thereby make troughed belt be dynamically connected part between two of bar along the opening transverse translation to progress into the first connector inside, part between two of final connecting rod local or all will snap in groove, at this moment, connecting rod is realized axial limiting to groove, head is realized being connected with fuselage, namely first connector and second connector can't move to axial, when needs during with the dismounting of head and fuselage, only need to promote the operation ring in the other direction, make troughed belt be dynamically connected part between two of bar along the translation of opening reverse landscape to withdraw from the first connector inside gradually, part and groove between two of final connecting rod are separated, and at this moment, connecting rod is removed axial limiting to groove, head and fuselage can be taken apart mutually, i.e. first connector and the relative freely-movable vertically of second connector.

After adopting said structure, the utility model compared with prior art has the following advantages: connecting rod and the groove realization axial limiting that matches, and bonding strength height not only, and also simple in structure, in addition, realize that fuselage is connected and dismounting with the quick of head.

As improvement, the part between two grooves of the inwall of operation ring is the inclined-plane, and this inclined-plane is used for the motion of guide connecting rod, and like this, the connecting rod motion steadily, accurately.

As improvement, connecting rod is two, circumferentially evenly distributes along first connector, and like this, two connecting rods are stressed evenly, and structure is still comparatively simple simultaneously further having improved bonding strength.

As improvement, operation ring inwall is provided with radial protrusion, the first connector outer wall is provided with the axial groove that is slidingly matched with radial protrusion, like this, can prevent that operation ring and first connector from relatively rotating, and then avoid operating ring and first connector and relatively rotate and to cause connecting rod to depart from the situation generation of opening.

As improvement, connecting rod is steel pole, like this, can further improve bonding strength.

As improvement, first connector is arranged with spring, in the space of this spring between operation ring and first connector, spring one end and head offset, the spring other end offsets with the operation ring, like this, the part of utilizing on the one hand spring that the operation environmental protection is held between two of connecting rod enters the position of the end-state of the first connector inside along the opening transverse translation, purpose is to make connecting rod and groove fit tight, thereby raising bonding strength, utilize spring that the operation ring is automatically reset on the other hand, the part of operating between two that the state that encircles after automatically reseting is exactly connecting rod enters the position of the end-state of the first connector inside along the opening transverse translation, can produce automatically reset situation when dismounting.

Description of drawings

Fig. 1 is the structural representation during being connected of fast assembling disassembling structure between head and the fuselage of the utility model electric tool.

Fig. 2 is the structural representation after the dismounting of fast assembling disassembling structure between the head of the utility model electric tool and fuselage.

Fig. 3 is the explosive view of fast assembling disassembling structure between the head of the utility model electric tool and fuselage.

Fig. 4 is one of partial structurtes view of fast assembling disassembling structure between the head of the utility model electric tool and fuselage.

Fig. 5 be fast assembling disassembling structure between the head of the utility model electric tool and fuselage the partial structurtes view two.

Fig. 6 is the axial cutaway view of the operation ring of fast assembling disassembling structure between the head of the utility model electric tool and fuselage.

Fig. 7 is the axial cutaway view of first connector of fast assembling disassembling structure between the head of the utility model electric tool and fuselage.

Shown in the figure, 1, operation ring, 2, connecting rod, 3, head, 4, first connector, 5, fuselage, 6, second connector, 7, opening, 8, groove, 9, groove, 10, the inclined-plane, 11, radial protrusion, 12, axial groove, 13, spring.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Fast assembling disassembling structure between the head of the utility model electric tool and fuselage, it comprises operation ring 1, at least one connecting rod 2, be located at first connector 4 of head 3, be located at second connector 6 of fuselage 5, operation ring 1, first connector 4, second connector 6 all can move between operation ring 1, first connector 4, second connector 6 to axial from socket in regular turn and coaxial line outside to inside; First connector 4 is provided with the opening 7 of the horizontally set that equates with connecting rod 2 quantity, inside and outside opening 7 connections first connector 4, part between two of connecting rod 2 is slidingly matched with opening 7, opening 7 is used for passing in and out first connector, 4 inside for the part between two of connecting rod 2, in other words, opening 7 is exactly laterally to have cut a through hole that connects the inside and outside wall of first connector 4 on the cylindrical side wall of first connector 4, for connecting rod 2 along with 1 axially-movable of operation ring moves to the inside of first connector 4 from the excircle of first connector 4; The inwall of operation ring 1 be provided with two that operation ring 1 and first connector 4 is used for driving connecting rod 2 to axial in the motion process along opening 7 translational sideways movement to realize that connecting rod 2 integral body are along two grooves 8 that are obliquely installed with respect to described axis of opening 7 translational sideways movement, two grooves 8 are slidingly matched with of connecting rod 2 respectively, an i.e. stature of groove 8 corresponding connecting rods 2, because each connecting rod 2 has two, so need two grooves 8 to match with a connecting rod 2; Second connector, 6 outer walls are provided with the groove 9 of horizontally set, groove 9 is used for when the part between two of groove 8 drive connecting rods 2 during to first connector, 4 inner transverse translational thrust, part between two of final connecting rod 2 local or all will snap in groove 9, the groove 9 that namely supplies the parts transversely between two of connecting rod 2 to embed, for convenient for production, be cannelure shown in the figure, but only a section of cannelure just can play effect, need not the full annular groove.

Part between two grooves 8 of the inwall of operation ring 1 is inclined-plane 10, and this inclined-plane 10 is used for the motion of guide connecting rod 2.

Connecting rod 2 is two, circumferentially evenly distributes along first connector 4.

Operation ring 1 inwall is provided with radial protrusion 11, the first connectors 4 outer walls and is provided with the axial groove 12 that is slidingly matched with radial protrusion 11.For simplifying view, radial protrusion 11 and axial groove 12 are not all drawn among Fig. 1, at the visible radial protrusion 11 of Fig. 5 and axial groove 12.

Connecting rod 2 is steel pole.

First connector 4 is arranged with spring 13, and in the space of this spring 13 between operation ring 1 and first connector 4, spring 13 1 ends and head 3 offset, and spring 13 other ends offset with operation ring 1.

Claims

1. fast assembling disassembling structure between the head of an electric tool and fuselage, it is characterized in that, it comprises first connector (4) of operating ring (1), at least one connecting rod (2), being located at head (3), second connector (6) of being located at fuselage (5), operation ring (1), first connector (4), second connector (6) are from socket in regular turn and coaxial line outside to inside, and operation ring (1), first connector (4), second connector all can move between (6) to axial; First connector (4) is provided with the opening (7) of the horizontally set that equates with connecting rod (2) quantity, inside and outside opening (7) connection first connector (4), part between two of connecting rod (2) is slidingly matched with opening (7), opening (7) is used for passing in and out first connector (4) inside for the part between two of connecting rod (2), the inwall of operation ring (1) be provided with two that operation ring (1) and first connector (4) be used for driving connecting rod (2) to axial in the motion process along opening (7) translational sideways movement realizing connecting rod (2) integral body along two grooves that are obliquely installed with respect to described axis (8) of opening (7) translational sideways movement, two grooves (8) are slidingly matched with of connecting rod (2) respectively; Second connector (6) outer wall is provided with the groove (9) of horizontally set, groove (9) is used for when two that groove (8) drives connecting rod (2) during to first connector (4) inner transverse translational thrust, the part of the part between two of final connecting rod (2) or all will snap in groove (9).

2. fast assembling disassembling structure between the head of electric tool according to claim 1 and fuselage is characterized in that, the part between two grooves (8) of the inwall of operation ring (1) is inclined-plane (10), and this inclined-plane (10) are used for the motion of guide connecting rod (2).

3. fast assembling disassembling structure between the head of electric tool according to claim 1 and fuselage is characterized in that, connecting rod (2) is two, circumferentially evenly distributes along first connector (4).

4. fast assembling disassembling structure between the head of electric tool according to claim 1 and fuselage, it is characterized in that, operation ring (1) inwall is provided with radial protrusion (11), and first connector (4) outer wall is provided with the axial groove (12) that is slidingly matched with radial protrusion (11).

5. fast assembling disassembling structure between the head of electric tool according to claim 1 and fuselage is characterized in that, connecting rod (2) is steel pole.

6. fast assembling disassembling structure between the head of electric tool according to claim 1 and fuselage, it is characterized in that, first connector (4) is arranged with spring (13), this spring (13) is arranged in the space between operation ring (1) and first connector (4), spring (13) one ends and head (3) offset, and spring (13) other end offsets with operation ring (1).