CN208961713U - A kind of angle grinder with universal joint - Google Patents

Abstract

The utility model relates to a kind of angle grinders with universal joint, belong to power tools technology field.Including handle (1), built-in power (2), motor (3), transmission shaft (4), angle grinding (5)；The built-in power (2) is set in handle (1)；The motor (3) is electrically connected with built-in power (2)；Described transmission shaft (4) one end is fixedly connected with motor output shaft (32), and the other end is detachably connected with angle grinding (5)；The motor (3) is connect by universal joint with handle (1).The universal joint is ball head universal (6), the hollow ball cover (62) including hollow ball (61) and matched installation；The motor (3) is fixedly mounted in hollow ball (61).The device structure is simple, for concrete polishing operation under various working conditions, the problems such as solving existing structure top plate and eminence walls concrete surface polished construction difficulty and can not change angle grinding (5) tilt angle.

Description

A kind of angle grinder with universal joint

Technical field

The utility model belongs to power tools technology field, be related to it is a kind of grinding, cutting, grinding apparatus more particularly to one Kind has the angle grinder of universal joint.

Background technique

Angle grinder, also known as grinder or disc mill are one for cutting and polishing for components such as metal, stone material, glass reinforced plastics Kind electric tool is mainly used for cutting, grinding and brushing metal and stone material etc..It is divided into pneumatic and electronic two major classes.Electric angle mill Machine is exactly to be carried out using high-speed rotating disc wheel and elastic grinding wheel, wire wheel etc. to metal component, stone material, glass reinforced plastic etc. Grinding, cutting, derusting, polishing processing.Suitable attachment is installed on such machine, grinding and polishing operation can also be carried out.

In construction projects, usually using plank sheathing production concrete masonry or component.Thus the problem of bringing is: demoulding Back stay needs to cut off；Concrete surface is inevitably present rough defect, and need to polish repairing.Ordinary circumstance Under, ordinary residence layer height is about 2.8 meters, and public building is different depending on the application, and layer height is often higher, therefore, to its top plate Gate-type frame need to be set up when carrying out pull rod excision and polishing operation with eminence wall, worker, which places oneself in the midst of, carries out operation on gate-type frame.Though Right gate-type frame bottom has that wheel is easy to remove, but its layer high fixed, and it is inadequate often to will appear a layer height, and two layers of height is spent Height interferes the case where worker operation.

The solution of the prior art is that worker places oneself in the midst of on gate-type frame, while angle grinder being bundled on rod and is beaten Grind operation.Thus the problem of bringing is: 1, worker need to constantly move gate-type frame or the different suitable length rods of replacement when operation, It is unfavorable for working continuously；2, angle grinder is bundled on rod using rope merely, and dust is larger when use, is unfavorable for seeing whether There is the case where loosening and wire intertwist, there are security risks；3, cable can not be adjusted the angle freely, and cable joint-box is easy broken Damage；4, under some operating conditions, since operating space is limited, and the grinding of the angle of angle grinder can not change tilt angle, to influence Polishing operation.

The utility model of CN201621379597.6 discloses a kind of angle grinder with universal joint cable joint-box, is related to electronic work Tool field.Including angle grinder ontology, angle grinder ontology rear end is connected with cable, and the cable is externally provided with cable joint-box, the electricity Cable covers one end equipped with universal joint, and the universal joint includes hollow ball and hollow ball cover, hollow ball a part and angle grinder Ontology is fixedly connected, and another part is nested in inside hollow ball cover, and the cable joint-box connect and communicates with the hollow ball cover, institute Hollow ball is stated to communicate with the hollow ball cover.The utility model solves cable in the prior art can not free adjusting angle Degree, cable joint-box are easy damaged problem.But top plate and eminence wall construction difficulty can not be still solved, angle grinding can not change Tilt angle, it is difficult to the problem of adapting to specific operation environmental demand.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of angle grinder with universal joint, this sets Standby structure is simple, easy-to-use, is suitable for concrete polishing operation under various working conditions.Solve building top plate and eminence Walls concrete surface is due to highly too high difficult using existing angle grinder polished construction；Existing angle grinder makes with rod binding With easy loose or dislocation is caused danger；Existing angle grinder using when easily occur wire intertwist interference operation；The angle of existing angle grinder Grinding can not change tilt angle, it is difficult to the problems such as adapting to specific operation environmental demand.Construction efficiency is improved, ensure that construction Quality meets the requirement of job specfication.

A kind of angle grinder with universal joint that in order to achieve the above purposes, the technical solution adopted by the utility model is:, including Handle, built-in power, motor, transmission shaft, angle grinding；The built-in power is set in handle；The motor and built-in power Electrical connection, is provided with motor output shaft；It is characterized by: described transmission shaft one end is fixedly connected with motor output shaft, the other end It is detachably connected with angle grinding；The motor is connect by universal joint with handle.

Further, the molding that is connected to one of described transmission shaft one end and motor output shaft.

Further, the angle grinding and transmission shaft are detachably connected by screw, and screw top surface is lower than angle grinding for beating The side of mill.

Further, the universal joint is ball head universal, the hollow ball cover including hollow ball and matched installation；Institute It states hollow ball a part to be nested in inside hollow ball cover, constitutes hollow ball built-in part, another part is outside hollow ball Reveal part；The motor is fixedly mounted in hollow ball；The hollow ball emerged part is provided with axis hole, motor output shaft It is fixedly connected across axis hole with transmission shaft；The hollow ball built-in part offers the string holes that power supply machine power transmission cable passes through； The handle connect and communicates with the hollow ball cover, and the hollow ball is communicated with the hollow ball cover.

Further preferably, the axis hole center and the string holes center are respectively positioned on the axial line of motor output shaft.

Further, inside the hollow ball cover, the hollow ball surrounding is provided with rubber pad, to ensure that angle grinder exists There can be enough frictional force when work, not rotate easily.

Further, the hollow ball built-in part periphery is provided with the limit vertical with the axial line of motor output shaft Piece guarantees that angle grinder does not go out at work for limiting rotation position and tilt angle of the hollow ball relative to hollow ball cover The excessive situation in existing inclination angle.

Further preferably, the limit film is circular ring plate, and fixed nesting is mounted on hollow ball.

Further, the handle or hollow sphere, which are put on, is provided with motor switch, is connected between built-in power and motor On circuit, for controlling motor switch operation.

Further, the built-in power is rechargeable battery, can satisfy electric wire and falls short of or be not easy to use when wiring.

Further preferably, the handle or hollow sphere, which are put on, is provided with charging hole, is electrically connected with the rechargeable battery, uses It charges in being connect by external charger with external power supply to rechargeable battery.

Further, the built-in power surrounding is provided with insulation foams.

Further preferably, anti-skid chequer is provided on the lateral wall of the handle.

Further, several LED lamp beads are provided on the hollow sphere set of the hollow ball surrounding, with the built-in power Electrical connection.For providing illumination in operation after being powered, meet dark place and the demand that carries on construction work at night.

Further preferably, the handle or hollow sphere, which are put on, is provided with LED light switch, is connected to built-in power and LED light On circuit between pearl, the switch for controlling LED lamp bead is operated.

Further, the handle is in the shape of a rod, it is external also it is mating outer telescopic tube is installed and handle collectively form it is flexible Bar, outer telescopic tube are used for linear regulation length of telescopic bar along handle axial direction linear slide；Lead between the handle and outer telescopic tube Cross fastener locked and fixed.

Further preferably, the fastener is jackscrew, is screwed in by the way that the threaded hole being coupled on outer telescopic tube is arranged in, Locked and fixed is held out against with handle.

Further preferably, the outer telescopic tube is internally provided with weight body far from universal joint one end, for balancing entire angle The distribution of weight of grinding machine is easy to use.

Further preferably, the handle buffers when for using far from Rubber shock-absorbing pad is provided with outside universal joint one end Impact force between handle and outer telescopic tube when contractile motion.

On this basis, further technical solution is the user of the angle grinder with universal joint of the utility model Method operates as follows.

The angle grinder with universal joint of the utility model is in place, length of telescopic bar is adjusted to suitable position, and angle is ground Piece is adjacent to the building top plate or eminence surface of wall for needing to polish, and starts motor switch, completes polishing operation.

Further, it in the case where dark during polishing operation at the construction field (site), is opened by opening LED light Lightening LED lamp pearl is closed, illumination is provided, meets dark place and the demand that carries on construction work at night.

The beneficial effects of the utility model.

1, the angle grinder with universal joint of the utility model has structure simple, easy-to-use, is suitable for various operating conditions Under Concrete polishing operation.Construction efficiency is improved, ensure that construction quality, meets the requirement of job specfication.

2, there are angle grindings cannot change tilt angle for existing angle grinder, it is difficult to adapt to asking for specific operation environmental condition Topic.The angle grinder with universal joint of the utility model, transmission shaft one end are fixedly connected with motor output shaft, and the other end and angle are ground Piece connection together constitutes head section, and motor is connect by ball head universal with handle, and freely becoming for heading is passed through Change realizes angle grinding tilt angle and freely converts according to the appropriateness of working condition, greatly facilitates polishing operation operation, improves Working efficiency.

3, the angle grinder with universal joint of the utility model, by the telescopic rod of linear adjustable length as handle, Building top plate and eminence walls concrete surface are efficiently solved due to highly too high tired using existing angle grinder polished construction The problem of hardly possible fundamentally solves worker and needs constantly gate-type frame, and the inconvenience of binding angle grinder bring and safety up and down Hidden danger.Being used cooperatively for extendable handle and ball head universal, may be implemented remote, multi-faceted polishing operation, operating efficiency Height, risk is small, is very suitable to the concrete polished construction operation of various complex working conditions.

4, the angle grinder with universal joint of the utility model, by the way that rechargeable battery is arranged in handle as in-built electrical Source solves the problems, such as wire intertwist and moving distance by circumscripted power line length limitation；Simultaneously overcome existing angle grinder with Rod binding uses, and is easy loose or dislocation, and using when easily there is wire intertwist interference operation, be easy to happen dangerous lack It falls into.

5, the angle grinder with universal joint of the utility model solves dark place construction sight difference by the way that LED lamp bead is arranged Problem.

6, the angle grinder with universal joint of the utility model, the transmission shaft and motor output shaft are integrally formed, angle mill Piece is directly installed on transmission shaft free end, and realize that motor is diagonally ground directly drives, and structure is simple, and utilization rate of electrical is high, Greatly reduce failure risk.

7, the angle grinder with universal joint of the utility model eliminates angle grinding protective cover, and angle grinding is for polishing Side is integrally located at one end of angle grinder, without any protrusion, in use, the side of angle grinding polishing is generally in Sanding Area It polishes on domain, significantly improves grinding efficiency.

Detailed description of the invention

Fig. 1 is the schematic cross-sectional view of angle grinder of the utility model embodiment 1 with universal joint.

Fig. 2 is the schematic cross-sectional view of 1 universal ball joint of the utility model embodiment.

Fig. 3 is the top view of angle grinder of the utility model embodiment 1 with universal joint.

Fig. 4 is the schematic cross-sectional view of angle grinder of the utility model embodiment 2 with universal joint.

Fig. 5 is the sectional structure signal of angle grinder telescopic rod tensional state of the utility model embodiment 3 with universal joint Figure.

Fig. 6 is the main view of angle grinder telescopic rod contraction state of the utility model embodiment 3 with universal joint.

Fig. 7 is the bottom view of angle grinder of the utility model embodiment 3 with universal joint.

Components, position and number in figure: 1- handle, 11- fastener, 12- Rubber shock-absorbing pad, 1A- telescopic rod；Built in 2- Power supply, 21- insulation foams, 22- charging hole；3- motor, 31- motor switch, 32- motor output shaft；4- transmission shaft；The angle 5- Grinding；The hollow ball of 6- ball head universal, 61-, the hollow ball emerged part of 611-, 6111- axis hole, the hollow ball of 612- are embedded Partially, the hollow ball cover of 6121- string holes, 62-, 63- rubber pad, 64- limit film；7-LED lamp bead, 71-LED lamp switch；8- is flexible Outer cylinder, 81- weight body.

Specific embodiment

The technical solution of the utility model is described in detail with reference to the accompanying drawing, but the content of the utility model is not It is confined to this.

Embodiment 1:

As shown in Figure 1, Figure 2, Figure 3 shows, a kind of angle grinder with universal joint of the utility model, including handle 1, in-built electrical Source 2, motor 3, transmission shaft 4, angle grinding 5；The built-in power 2 is set in handle 1；The motor 3 is electrically connected with built-in power 2 It connects, is provided with motor output shaft 32；Described 4 one end of transmission shaft is fixedly connected with motor output shaft 32, and the other end and angle grinding 5 can Dismantling connection；The motor 3 is connect by universal joint with handle 1.

The angle grinding 5 and transmission shaft 4 are detachably connected by screw, and screw top surface is lower than angle grinding 5 for polishing Side.

The universal joint is ball head universal 6, the hollow ball cover 62 including hollow ball 61 and matched installation；It is described Hollow 61 a part of ball is nested in inside hollow ball cover 62, constitutes hollow ball built-in part 612, and another part is hollow rolling Pearl exposed parts 611；The motor 3 is fixedly mounted in hollow ball 61；The hollow ball emerged part 611 is provided with axis Hole 6111, motor output shaft 32 pass through axis hole 6111 and are fixedly connected with transmission shaft 4；The hollow ball built-in part 612 opens up The string holes 6121 for thering is 3 power transmission cable of power supply machine to pass through；The handle 1 connect and communicates with the hollow ball cover 62, described hollow Ball 61 is communicated with the hollow ball cover 62；6111 center of axis hole and 6121 center of string holes are respectively positioned on motor output shaft On 32 axial line；Inside the hollow ball cover 62, hollow 61 surrounding of ball is provided with rubber pad 63, to ensure that angle is ground Machine can have enough frictional force at work, not rotate easily.

Hollow 612 periphery of ball built-in part is provided with the limit film vertical with the axial line of motor output shaft 32 64, the limit film 64 is circular ring plate, and fixed nesting is mounted on hollow ball 61, for limiting hollow ball 61 relative to sky The rotation position of bulbus cordis set 62 and tilt angle guarantee that angle grinder does not occur the excessive situation in inclination angle at work.

It is provided with motor switch 31 on the handle 1, is connected on the circuit between built-in power 2 and motor 3.

The built-in power 2 is rechargeable battery, and surrounding is provided with insulation foams 21, is provided on the handle 1 Charging hole 22 is electrically connected with the rechargeable battery, for being connect with external power supply to rechargeable battery by external charger Charging.

Embodiment 2:

As shown in figure 4, a kind of angle grinder with universal joint of the utility model, is on the basis of embodiment 1, in institute It states and is provided with several LED lamp beads 7 on the hollow ball cover 62 of hollow 61 surrounding of ball, be electrically connected with the built-in power 2.For leading to Illumination is provided in operation after electricity, meets dark place and the demand that carries on construction work at night；It is provided with LED light switch 71 on the handle 1, connects On circuit between built-in power 2 and LED lamp bead 7, the switch for controlling LED lamp bead 7 is operated.

Embodiment 3:

As shown in Fig. 5, Fig. 6, Fig. 7, a kind of angle grinder with universal joint of the utility model, is the base in embodiment 2 On plinth, the handle 1 is in the shape of a rod, it is external it is also mating outer telescopic tube 8 is installed and handle 1 collectively forms telescopic rod 1A, it is flexible Outer cylinder 8 is used for linear regulation telescopic rod 1A length along the axial linear sliding of handle 1；Lead between the handle 1 and outer telescopic tube 8 Cross 11 locked and fixed of fastener.

The outer telescopic tube 8 is internally provided with weight body 81 far from universal joint one end, for balancing the weight of entire angle grinder Amount distribution, is easy to use.

The handle 1 buffers handle 1 and stretches far from Rubber shock-absorbing pad 12 is provided with outside universal joint one end when for using Impact force between contracting outer cylinder 8 when contractile motion.

The application method of the angle grinder with universal joint of the present embodiment: the angle with universal joint of the utility model is ground Machine is in place, adjusts telescopic rod 1A length to suitable position, angle grinding 5 is adjacent to the building top plate or eminence wall for needing to polish Surface starts motor switch 31, completes polishing operation.During polishing operation, the feelings of the dark of construction site are encountered When condition, by opening 71 lightening LED lamp pearl 7 of LED light switch, illumination is provided, meets dark place and the demand that carries on construction work at night.

The above is only the preferred embodiment of the utility model, not to limit the interest field of the utility model. Any interest field covered with the application the scope of the patents and the technical solution or any technology for being familiar with this field implemented Personnel are made the scheme of many possible changes and modifications using the method content of the disclosure above, belong to the utility model Protection scope.

Claims (10)

1. a kind of angle grinder with universal joint, including handle (1), built-in power (2), motor (3), transmission shaft (4), angle grinding (5)；The built-in power (2) is set in handle (1)；The motor (3) is electrically connected with built-in power (2), is provided with motor Output shaft (32)；It is characterized by: described transmission shaft (4) one end is fixedly connected with motor output shaft (32), the other end and angle are ground Piece (5) is detachably connected；The motor (3) is connect by universal joint with handle (1).

2. a kind of angle grinder with universal joint as described in claim 1, it is characterised in that: the universal joint is that bulb is universal It saves (6), the hollow ball cover (62) including hollow ball (61) and matched installation；Described hollow ball (61) a part is nested It is internal in hollow ball cover (62), hollow ball built-in part (612) is constituted, another part is hollow ball emerged part (611)； The motor (3) is fixedly mounted in hollow ball (61)；The hollow ball emerged part (611) is provided with axis hole (6111), motor output shaft (32) passes through axis hole (6111) and is fixedly connected with transmission shaft (4)；The hollow ball built-in part (612) string holes (6121) that power supply machine (3) power transmission cable passes through is offered；The handle (1) and the hollow ball cover (62) are even It connects and communicates, the hollow ball (61) communicates with the hollow ball cover (62).

3. a kind of angle grinder with universal joint as claimed in claim 2, it is characterised in that: axis hole (6111) center with String holes (6121) center is respectively positioned on the axial line of motor output shaft (32).

4. a kind of angle grinder with universal joint as claimed in claim 2, it is characterised in that: the hollow ball built-in part (612) periphery is provided with the limit film (64) vertical with the axial line of motor output shaft (32).

5. a kind of angle grinder with universal joint as claimed in claim 2, it is characterised in that: the handle (1) or hollow sphere Motor switch (31) are provided on set (62), are connected on the circuit between built-in power (2) and motor (3).

6. a kind of angle grinder with universal joint as described in claim 1, it is characterised in that: the built-in power (2) is can Rechargeable battery.

7. a kind of angle grinder with universal joint as claimed in claim 6, it is characterised in that: the handle (1) or hollow sphere Charging hole (22) are provided on set (62), are electrically connected with the rechargeable battery.

8. a kind of angle grinder with universal joint as claimed in claim 2, it is characterised in that: in the hollow ball (61) four Several LED lamp beads (7) are provided on the hollow ball cover (62) in week, are electrically connected with the built-in power (2)；The handle (1) or It is provided with LED light switch (71) on hollow ball cover (62), is connected on the circuit between built-in power (2) and LED lamp bead (7).

9. a kind of angle grinder with universal joint as described in claim 1, it is characterised in that: the handle (1) is in the shape of a rod, It is external it is also mating outer telescopic tube (8) is installed and handle (1) collectively forms telescopic rod (1A), outer telescopic tube (8) is along handle (1) Axial linear sliding；Pass through fastener (11) locked and fixed between the handle (1) and outer telescopic tube (8).

10. a kind of angle grinder with universal joint as claimed in claim 9, it is characterised in that: the outer telescopic tube (8) is separate Universal joint one end is internally provided with weight body (81).