CN203853971U - Connecting rod for electric hammer and electric drill - Google Patents

Abstract

The utility model discloses a pole that connects that electric hammer and electric drill were used relates to the hardware and tools field, connect the pole and include: the sleeve comprises a sleeve, an elastic extension rod body, an elastic collet chuck, a locking nut and a sleeve adapter sleeve component; elasticity connects pole body one end to be connected through lock nut and elasticity collet chuck cooperation, sleeve pipe one end is connected with screwdriver head, the other end passes through sleeve pipe switching cover part and connects this body coupling with elasticity, this novel design is similar with using traditional drill bit in using, do not need extra installation procedure, only need insert the drill bit in the elasticity collet chuck, put the elasticity collet chuck in the bell mouth of elasticity connects the pole body simultaneously with lock nut locking can again, thereby reach and use lower cost various traditional drill bits to have drilling concurrently and have the purpose of lock screw concurrently, and the elasticity collet chuck that uses independent structure more is favorable to reducing the cost when maintaining this and connect the pole.

Description

Connecting rod for electric hammer and electric drill

technical field

The utility model relates to the field of hardware tools, in particular to an electric hammer and an extension rod for an electric drill. the

Background technique

At present, all walks of life are involved in the installation of fasteners. The common method is to install a drill bit on the power tool first, and then use a manual screwdriver to tighten the screw after drilling the hole on the workpiece with the drill bit. In order to improve work efficiency, builders often carry two electric tools during installation operations, namely, an electric drill for drilling workpieces, and an electric screwdriver for locking screws. It is inconvenient; after some constructors drill holes with electric drills, they unload the drill bit from the chuck of the electric drill and replace it with fastening tools for screwing screws, which not only increases the body weight of the constructor virtually Load, and frequent replacement can easily damage the service life of electric tools and increase operating costs. the

There are also some adapters with the functions of drilling and locking screws, but these tools are limited to a single type of drill bit, and the drill bit needs to have a special shank type. Compared with the traditional drill bit, the The cost is high and the processing is complicated. Therefore, there are certain limitations in the use of the adapter used in conjunction with the drill bit, that is, it cannot be used universally in industries such as woodworking, ironwork, and construction. the

Contents of the invention

(1) Technical problems to be solved

The technical problem to be solved by the utility model is how to provide a low-cost, easy-to-maintain tool that can not only clamp drill bits of different specifications, but also have the function of locking screws, and make it suitable for carpentry, ironwork and Construction and other industries. the

(2) Technical plan

In order to solve the above problems, the utility model provides a connecting rod for an electric hammer and an electric drill, which is used in conjunction with an electric tool. The connecting rod includes: a sleeve, an elastic connecting rod body, an elastic collet and a locking nut ;

The sleeve is a hollow round tube, the inner hole at one end is an inner hexagonal hole, the inner hole at the other end is a first sleeve hole, and a groove is provided on the outer circle of both ends, and there is a groove exposed in the groove. The steel ball in the groove has a shrapnel outside the groove, and the shrapnel is used to press the steel ball into the groove;

One end of the elastic rod body is a connection part that is connected with the elastic collet, and the other end is provided with a handle, and a first socket boss is provided between the handle and the connection part, and the first socket boss There is a first circular arc groove on the table;

The locking nut is used to lock the elastic rod body and the elastic collet;

The connecting rod also includes a sleeve adapter sleeve part, and the sleeve adapter sleeve part is arranged between the sleeve and the elastic rod body;

One end of the sleeve with the inner hexagonal hole is connected to the screwdriver head, and the handle of the elastic post body is connected to the electric tool. the

Wherein, the post includes: an elastic post body with an inner taper hole and an elastic collet with an external taper, the outer wall of the elastic collet is provided with a slot, and the elastic post body and the elastic collet A threaded portion is provided on the outer periphery of the connecting portion, after the elastic collet with an external taper extends into the elastic post body with an internal taper hole, the lock nut locks the elastic post body and the elastic post body through the threaded portion Elastic collet. the

Wherein, the post also includes: an elastic collet with an outer taper and a locking nut with an inner taper, the elastic collet with an outer taper is connected to one end of the elastic post body, through A locking nut with an inner taper locks the elastic post body and the elastic collet with an outer taper. the

Wherein, the casing adapter sleeve part includes: an adapter sleeve body and a clutch unit, and one end of the adapter sleeve body is provided with a second sleeve boss, and the outer surface shape of the second sleeve boss is the same as that of the The shape of the inner surface of the first socket hole is the same, the second socket boss is provided with a second arc groove corresponding to the sleeve groove, and the other end of the adapter sleeve body is provided with a The second socket hole corresponding to the first socket boss, the other end of the adapter sleeve body is provided with a connecting surface, the connecting surface is provided with a through hole, and the clutch unit is arranged on the outside of the connecting surface, The clutch unit includes: an outer ring sleeve, two springs with the same coefficient and positioning steel balls, the shape of the inner surface of the outer ring sleeve is the same as that of the connecting surface, and two arc-shaped grooves are arranged on the inner surface of the outer ring sleeve , the outer ring sleeve is sleeved on the outer side of the connecting surface, two springs are respectively arranged on both sides of the outer ring sleeve, and the positioning steel ball is arranged in the through hole and offset against the inner surface of the outer ring sleeve. the

Wherein, the surface shape of the connecting surface includes: a circle and an equilateral polygon. the

Wherein, the shape of the handle includes: circle, triangle, quadrangular and hexagonal. the

Wherein, the outer surface of the handle is evenly provided with grooves, and the number of the grooves is at least three. the

Wherein, the shapes of the first socket hole and the second socket hole both include: triangle, quadrangle, hexagon or equilateral polygon. the

Wherein, there are at least two slots, and all the slots are evenly distributed on the wall of the elastic collet, and the elastic collet is made of high-elastic alloy steel. the

Wherein, the drill bit connected with the connecting rod is a carpentry, ironworker or construction cement drill bit. the

(3) Beneficial effects

The use of this new design is similar to the use of traditional drill bits, no additional installation procedures are required, only the drill bit needs to be inserted into the elastic collet, and then the elastic collet is placed in the tapered hole of the elastic post body and locked with a lock The nut can only be locked, so as to achieve the purpose of using various traditional drill bits with lower cost to both drill holes and lock screws, and the use of an independent elastic collet is more conducive to reducing the maintenance time of the post. cost. the

Description of drawings

Fig. 1 is the overall structure schematic diagram of the utility model connecting rod;

Fig. 2 is the schematic diagram of bushing in Fig. 1;

Fig. 3 is a schematic diagram of the body of the elastic rod in Fig. 1;

Fig. 4 is the schematic diagram of elastic collet in Fig. 1;

Fig. 5 is the schematic diagram of locking nut among Fig. 1;

Fig. 6 is a structural schematic diagram of an elastic collet with an external taper and a handle and a lock nut with an internal taper;

Fig. 7 is a schematic structural view of the bushing adapter sleeve part in Fig. 1;

Fig. 8 is a schematic diagram of locking the fastener with post after drilling. the

Note: Sleeve 100, inner hexagonal hole 101, first socket hole 102, groove 103, steel ball 12, shrapnel 13, drill bit 14, elastic post body 200, connecting part 2000, tapered hole 2001, threaded part 2002, The first sleeve boss 203, the first arc groove 204, the handle 205, the groove 2051, the elastic collet 300, the elastic collet 300a with an outer taper, the missing groove 301, the locking nut 400, the belt Lock nut 400a with internal taper, sleeve adapter sleeve part 500, adapter sleeve body 501, second socket boss 5011, second arc groove 5012, second socket hole 5013, connecting surface 5014 , through hole 5015, clutch unit 520, outer ring sleeve 521, spring 522, positioning steel ball 523, left arc groove 5211, right arc groove 5212. the

Detailed ways

Below in conjunction with accompanying drawing, the specific embodiment of the utility model is described in further detail, the following examples are used to illustrate the utility model, but are not used to limit the scope of the utility model. the

As shown in Figures 1 to 5, the post includes: a casing 100, an elastic post body 200, an elastic collet 300 and a locking nut 400;

The sleeve 100 is a hollow round tube, the inner hole at one end is an inner hexagonal hole 101, the inner hole at the other end is a first sleeve hole 102, and a groove 103 is provided on the outer circle of both ends, and the groove 103 There is a steel ball 12 exposed in the groove 103 inside, and a shrapnel 13 is placed outside the groove 103, and the shrapnel 13 is used to press the steel ball 12 into the groove 103;

One end of the elastic rod body 200 is a connection part 2000 that is matched with the elastic collet 300, and the other end is provided with a handle 205, and a first sleeve boss 203 is provided between the handle 205 and the connection part 2000. The first socket boss 203 is provided with a first arc groove 204;

The locking nut 400 is used to lock the elastic post body 200 and the elastic collet 300;

The connecting rod also includes a sleeve adapter sleeve part 500, and the sleeve adapter sleeve part 500 is arranged between the sleeve pipe 100 and the elastic rod body 200;

One end of the sleeve 100 with the inner hexagonal hole is connected to the screwdriver bit, and the handle 205 of the elastic post body 200 is connected to the electric tool. the

Preferably, the post includes: an elastic post body 200 with an inner tapered hole 2001 and an elastic collet 300 with an external taper, the outer wall of the elastic collet 300 is provided with a slot 301, and the elastic post The connecting part 2000 of the main body 200 and the elastic collet 300 is provided with a threaded part 2002 on the outer periphery. After the elastic collet 300 with an outer taper extends into the elastic post body 200 with an inner taper hole, the locking nut 400 passes through The threaded portion 2002 locks the elastic post body 200 and the elastic collet 300 . the

Preferably, as shown in FIG. 6 , the connecting rod further includes: an elastic collet 300a with an external taper and a locking nut 400a with an internal taper, and the elastic collet 300a with an external taper is connected to At one end of the elastic rod body 200, the elastic rod body 200 and the elastic collet 300a with an outer taper are locked by a locking nut 400a with an inner taper. the

Preferably, as shown in FIG. 7, the bushing adapter part 500 includes: an adapter body 501 and a clutch unit 520, and one end of the adapter body 501 is provided with a second sleeve boss 5011, so that The shape of the outer surface of the second socket boss 5011 is the same as the shape of the inner surface of the first socket hole 102, and the second socket boss 5011 is provided with a second groove corresponding to the sleeve groove 103 Arc groove 5012, the other end of the adapter sleeve body 501 is provided with a second sleeve hole 5013 corresponding to the first sleeve boss 203, and the other end of the adapter sleeve body 501 is provided with a connecting surface 5014, the connecting surface 5014 is provided with a through hole 5015, and the clutch unit 520 is arranged on the outside of the connecting surface 5014, and the clutch unit 520 includes: an outer ring sleeve 521, two springs 522 with the same coefficient and a positioning steel ball 523, The shape of the inner surface of the outer ring sleeve 521 is the same as that of the connecting surface 5014, and two arc-shaped grooves (left 5211 and right 5212) are provided on the inner surface of the outer ring sleeve 521, and the outer ring sleeve 521 is sleeved on the On the outside of the connection surface 5014, two springs 522 are respectively arranged on both sides of the outer ring sleeve 521, and the positioning steel ball 523 is arranged in the through hole 5015 and abuts against the inner surface of the outer ring sleeve 521. the

One end of the sleeve 100 with the inner hexagonal hole is connected to the screwdriver head, and the other end is connected to the second socket boss 5011, and the first socket boss 203 of the elastic post body 200 is connected to the second socket boss. The hole 5013 is connected, and the handle 205 of the elastic post body is connected with the electric tool. When the sleeve 100 is inserted into the second sleeve boss 5011 of the adapter sleeve body 501, the groove 103 of the sleeve 100 is set The inner exposed steel ball 12 is located at the second arc groove 5012 on the second socket boss 5011 of the adapter sleeve body 501, and the external shrapnel 13 can force the steel ball 12 to sink into the second socket boss 5011. The sleeve 100 is fixed on the adapter sleeve body 501 of the sleeve adapter sleeve part 500 in the two arc grooves 5012, and then the adapter sleeve body 501 is connected to the elastic joint by the clutch unit 520 on the sleeve adapter sleeve part 500. The post body 200 is connected or separated;

Specifically, when the outer ring sleeve 521 is pushed to the left, the right arc groove of the outer ring sleeve 521 can be placed at the position of the positioning steel ball 523, and the space in the right arc groove 5212 can allow the positioning steel ball 523 to float upward and break away from the elasticity. The first arc groove 204 of the post body, so that the sleeve adapter sleeve part 500 can be taken out; when the outer ring sleeve 521 is pulled to the right, the arc groove on the left side of the outer ring sleeve 521 can be placed in the positioning steel ball 523 Position, the space of the left arc-shaped groove 5211 can allow the positioning steel ball 523 to float upward, so that the second socket hole 5013 of the sleeve adapter sleeve part 500 can be set on the first socket boss 203 of the elastic post body , when the tension of the outer ring sleeve 521 is released, because the springs 522 with the same coefficient are used on both sides, the position of the outer ring sleeve 521 is in the middle of the connection surface, so that the inner surface between the arc grooves on the inner surface of the outer ring sleeve 521 At the position of the positioning steel ball 523, the inner surface between the two arc-shaped grooves can force the positioning steel ball 523 to sink into the first circular arc groove 204 of the elastic post body 200, so that the casing adapter sleeve part 500 can be fixed on the The function of the elastic post body 200 is such that the rotational energy of the electric tool can be transmitted to the bushing 100 as a driving screw for fastening. the

Preferably, the surface shape of the connecting surface 5014 includes: a circle and an equilateral polygon. (the surface shape of the connecting surface is circular in this embodiment)

Preferably, the shape of the handle 205 includes: circle, triangle, quadrangle and hexagon. (The shape of handle is circular in this embodiment)

Preferably, the outer surface of the handle 205 is evenly provided with grooves 2051, and the number of grooves 2051 is at least three. (the number of grooves in this embodiment is 4)

Preferably, the shapes of the first socket hole 102 and the second socket hole 5013 both include: triangle, quadrangle, hexagon or equilateral polygon. (The shapes of the first socket hole and the second socket hole in this embodiment are all hexagonal)

Preferably, the number of the slots 301 is at least two (the number of slots in this embodiment is 4), and all the slots are evenly distributed on the wall of the elastic collet 300 . the

Preferably, the elastic collet 300 is made of high elastic alloy steel, which is highly compressible and resilient, and the compression range depends on the diameter of the shank of the drill bit. When the locking nut 400 is loosened, the elastic collet 300 rebounds to the original position, so that the commonality of various drill bits applicable to diameter differences within a certain range can be realized. It can also solve the problem that drill bits of the same specification produced by various manufacturers have different shank diameters. the

Preferably, the drill bit connected with the connecting rod may be a carpentry, ironwork or construction cement drill bit. the

How to use: (as shown in Figure 8)

1. Insert the drill bit 14 into the inner hole of the elastic collet 300, and then use the lock nut 400 to lock the elastic collet 300 and the drill bit 14 together at the tapered hole end of the elastic post body 200, and use the clamp of the electric tool The holding part clamps the handle 205 of the elastic post body. the

2. Turn on the power of the electric tool and drill the required holes on the workpiece. the

3. Insert one end of the casing 100 into the drill bit and the second sleeve boss 5011 on one end of the adapter sleeve body 501, and then sleeve the other end of the adapter sleeve body 501 on the elastic rod through the second sleeve hole 5013 The first socket boss 203 of the body 200 is connected to the sleeve adapter sleeve part 500 on the elastic post body 200 through the clutch unit 520 on the sleeve adapter sleeve part 500 . the

4. The other end of the casing 100 is inserted into the hexagonal hole 101 corresponding to the screwdriver head. the

5. Turn on the electric tool and lock the screw into the workpiece at a low speed. the

6. The work of drilling holes and fastening screws can be repeated by taking off or inserting the casing 100 or the casing adapter sleeve part 500 . the

The above embodiments are only used to illustrate the utility model, but not to limit the utility model. Those of ordinary skill in the relevant technical fields can also make various changes and modifications without departing from the spirit and scope of the utility model. , so all equivalent technical solutions also belong to the category of the utility model, and the patent protection scope of the utility model should be limited by the claims. the

Claims (10)

1. the extension bar that electric hammer and electric drill are used, itself and electric tool are used in conjunction with, and it is characterized in that, and described extension bar comprises: sleeve pipe, elasticity extension bar body, elastic collet chuck and lock nut;

Described sleeve pipe is the pipe of a hollow, and its one end endoporus is inner hexagonal hole, and other end endoporus is the first sleeve joint hole, two ends cylindrical is respectively provided with a groove, in described groove, be provided with the steel ball that is exposed to groove, the external shell fragment of groove, described shell fragment is for pressing steel ball in groove;

Described elasticity extension bar body one end is the connecting portion being connected with elastic collet chuck, and the other end is provided with and connects handle, described in connect and between handle and connecting portion, be provided with the first socket boss, described the first socket boss is provided with the first arc groove;

Described lock nut is used for locking described elasticity extension bar body and elastic collet chuck;

Extension bar also comprises sleeve pipe reducing sleeve parts, and described sleeve pipe reducing sleeve parts are located between described sleeve pipe and described elasticity extension bar body;

Described sleeve pipe is connected with screwdriver bit with one end of inner hexagonal hole, and the handle that connects of described elasticity extension bar body is connected with electric tool.

2. extension bar as claimed in claim 1, it is characterized in that, described extension bar comprises: with the elasticity extension bar body in internal taper hole with the elastic collet chuck of external taper, described elastic collet chuck outer wall is provided with short slot, the connecting portion periphery of described elasticity extension bar body and elastic collet chuck is provided with threaded portion, stretch into after the elasticity extension bar body with internal taper hole with the elastic collet chuck of external taper, described lock nut is locked described elasticity extension bar body and elastic collet chuck by described threaded portion.

3. extension bar as claimed in claim 1, it is characterized in that, described extension bar also comprises: with the elastic collet chuck of external taper with the lock nut of internal taper, the described elastic collet chuck with external taper is connected to one end of described elasticity extension bar body, by lock described elasticity extension bar body and the elastic collet chuck with external taper with the lock nut of internal taper.

4. extension bar as claimed in claim 1, it is characterized in that, described sleeve pipe reducing sleeve parts comprise: reducing sleeve body and clutch unit, described reducing sleeve body one end is provided with the second socket boss, described the second socket boss external surface shape is identical with described the first socket internal surface of hole shape, described the second socket boss is provided with second arc groove corresponding with described sleeve grooves, described reducing sleeve body other end inside is provided with second sleeve joint hole corresponding with the first socket boss, described reducing sleeve body other end outside is provided with joint face, described joint face is provided with through hole, described clutch unit is located at joint face outside, described clutch unit comprises: exterior ring cap, two spring and positioning balls that coefficient is identical, described exterior ring cap inner surface shape is identical with the surface configuration of joint face, and exterior ring cap inner surface is provided with two deep-slotted chip breakers, described exterior ring cap is socketed on joint face outside, two springs are located at respectively exterior ring cap both sides, described positioning ball be located in through hole and with exterior ring cap contacted inner surfaces.

5. extension bar as claimed in claim 4, is characterized in that, the surface configuration of described joint face comprises: circular, equilateral polygon shape.

6. extension bar as claimed in claim 1, is characterized in that, described in connect handle shape comprise: circle, triangle, quadrangle and hexagon.

7. extension bar as claimed in claim 6, is characterized in that, described in connect on the outer surface of handle and be provided with uniformly groove, and the quantity of described groove is at least three.

8. extension bar as claimed in claim 4, is characterized in that, the shape of described the first sleeve joint hole and the second sleeve joint hole includes: triangle, quadrangle, hexagon or equilateral polygon shape.

9. extension bar as claimed in claim 2, is characterized in that, the quantity of described short slot is at least two, and all short slots are all evenly distributed on the barrel of elastic collet chuck, and described elastic collet chuck is made up of high elastic modulus alloy steel.

10. the extension bar as described in claim 1～9 any one, is characterized in that, the drill bit being connected with described extension bar is carpenter, ironworker or build work cement drill bit.