CN1461688A - Wrench with lightweight and reinforced structure - Google Patents

Abstract

A wrench with light weight and reinforced structure comprises: a body made of nonferrous metal, having an elongated shank, at least one clamping end at one end of the shank for driving the screw element; at least one reinforcing member, having a hardness higher than that of the body, disposed in the clamping end; at least one reinforcing rod with hardness higher than that of the main body is axially arranged in the handle body. In addition, the wrench can also drive a sleeve, the sleeve is also made of nonferrous metal, and the top end of the sleeve is provided with a connecting hole for being sleeved on the wrench; a reinforcing member having a higher hardness than the sleeve and having a hole portion at the center thereof, the reinforcing member being disposed in the hole. Therefore, the wrench and the sleeve have the advantages of light weight, high strength and non-magnetic conductivity, and are suitable for operation in a narrow space.

Description

Wrench with lightweight and reinforced structure

technical field

The invention relates to a hand tool, in particular to a wrench with lightweight and reinforced structure, and a socket with the same effect.

Background technique

A wrench is a hand tool widely used in many fields to drive screwed items such as nuts or bolts.

Known wrenches are made of iron metal, and the applicant found that the wrench made of iron metal has many defects:

One is: the density of iron is high, the weight of the wrench made is heavy, and it is more laborious to use.

Furthermore, iron has a magnetic conduction effect, therefore, an iron wrench will magnetize the object, and its magnetic phenomenon will affect the performance of precision instruments.

Third, known iron wrenches all have relatively large volume and thickness, and are difficult to hold in use, and meanwhile, are also difficult to use in a narrow space.

The known sleeves are also all made of iron metal, and have defects such as heavy weight and magnetic conduction phenomenon.

Contents of the invention

The main technical problem to be solved by the present invention is to overcome the defects of the existing wrench and socket structure, and provide a wrench and socket with a lightweight and reinforced structure, which are made of non-ferrous metals , and has high torque and high strength.

Another technical problem to be solved by the present invention is to provide a wrench with a lightweight and reinforced structure, so that the wrench and socket have a lightweight and reinforced structure.

Another technical problem to be solved by the present invention is to provide a wrench with a lightweight and reinforced structure, so that it has antimagnetic effect.

Another technical problem to be solved by the present invention is to provide a wrench with a lightweight and reinforced structure, which is easy to hold and operate, and easy to use in a narrow space.

The present invention solves its main technical problems by adopting the following technical solutions. A wrench with a lightweight and reinforced structure proposed according to the present invention, which includes: a body, a long handle with at least one clamping end, and the clamping end is used to drive and rotate a screwed element; wherein the body Made of non-ferrous metal; at least one reinforcing piece and at least one reinforcing rod, both of which are harder than the body, the reinforcing piece is arranged in the clamping end, and the reinforcing rod is arranged along the The handle body is axially arranged in the handle body.

The technical solution for solving the technical problems of the present invention can also be further realized by adopting the following technical measures.

The aforementioned wrench with a lightweight and reinforced structure, wherein the clamping end is closed and provided with a through hole to form a part for socketing screwed components; the reinforcing member is ring-shaped and located on described in the through hole.

A chamber communicating with the through hole is provided in the body; a hollow portion corresponding to the chamber is provided on the periphery of the reinforcing member; a ratchet mechanism has a ratchet and a ratchet member, and the ratchet is provided The ratchet member is installed in the reinforcement part and can rotate; the ratchet member is arranged in the chamber, passes through the hollow part, and is elastically clamped to the ratchet wheel.

The clamping end is open and has a U-shaped inner wall; the reinforcing piece is also U-shaped and arranged in the inner wall.

A slot is recessed on the inner wall of the clamping end; the reinforcing piece is arranged in the slot.

One end of the reinforcing rod is provided with an inserting portion, and the inserting portion is fixedly connected to the inner wall of the shaft hole.

It also includes a sleeve that can be rotated by the wrench. The top end of the sleeve is provided with a first connecting hole for being connected to the wrench, and the bottom end is provided with a second connecting hole for connecting the threaded components. ; wherein the sleeve is made of non-ferrous metal; it also has at least one reinforcement, its shape is a predetermined geometric shape, its hardness is higher than the sleeve, a hole is provided in the center, and the reinforcement is fixed on the in a hole.

A stepped portion with a larger outer diameter is recessed around the periphery of the connection hole of the reinforcing member, and the reinforcing member is in the shape of a sheet and is arranged in the stepped portion.

An occlusal portion is provided on the outer peripheral edge of the reinforcing member, and the occlusal portion occludes the peripheral surface of the connecting hole.

Compared with the prior art, the present invention has obvious advantages and beneficial effects. It can be seen from the above technical solutions that, firstly, the present invention makes the wrench and the socket with light-weight materials, so it has a lightweight effect, and is easy to hold and operate without labor.

2. Both the wrench and the sleeve of the present invention are equipped with metal reinforcements, which produce a structural strength comparable to that of iron and metal hand tools, and can withstand high torque.

3. The wrench body of the present invention is made of non-ferrous metal and does not contain magnetic induction phenomenon, so it will not affect the performance of precision instruments.

4. Compared with the wrench of the same size, the structure of the present invention can make the wrench have smaller volume and thickness, so it is beneficial to use in a narrow space.

To sum up, the wrench of the present invention has a lightweight and reinforced structure. In the field with limited technological development space, it has great improvements in both structure and function, and has made great progress in technology. , and produced easy-to-use and practical effects, and indeed has enhanced efficacy, so that it is more suitable for practical use. It is a novel, progressive and practical invention.

The specific embodiment of the present invention is given in detail by the following examples and accompanying drawings.

Description of drawings

Fig. 1 is a perspective view of a wrench according to a preferred embodiment of the present invention.

FIG. 2 is an exploded perspective view of FIG. 1 .

Fig. 3 is a sectional view taken along line 3-3 in Fig. 1 .

Fig. 4 is a sectional view taken along line 4-4 in Fig. 1 .

Fig. 5 is an exploded perspective view of a wrench according to another preferred embodiment of the present invention.

FIG. 6 is a combined longitudinal sectional view of FIG. 5 .

Fig. 7 is a perspective view of a wrench in another preferred embodiment of the present invention.

FIG. 8 is a partially exploded perspective view of FIG. 7 .

Fig. 9 is a perspective view of a sleeve in another preferred embodiment of the present invention.

FIG. 10 is a top exploded perspective view of FIG. 9 .

FIG. 11 is a bottom exploded perspective view of FIG. 9 .

Fig. 12 is an exploded perspective view of a sleeve slip according to another preferred embodiment of the present invention.

Description of figure number:

Wrench 10 Body 20 Handle Body 22

Clamping end 24 Through hole 25 Housing chamber 26

Shaft Hole 28 Reinforcement 30 Bite 32

ratchet wheel 40 pawl member 42 reinforcement rod 50

Wrench 60 Body 62 Clamping end 65

Embedded Groove 66 Reinforcement 68 Sleeve 70, 90

Connecting hole 2 Step part 73, 93 Set hole 74

Reinforcement 75, 78 Hole 76, 79, 96

Detailed ways

The specific implementation, structure, features and functions of the wrench with lightweight and reinforced structure according to the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

Referring first to Fig. 1 and Fig. 2, a wrench 10 provided for a preferred embodiment of the present invention includes:

A body 20 is made of aluminum alloy and has light weight effect. The body 20 has an elongated handle 2, one end of which forms a clamping end 24 for driving a nut or bolt. The clamping end shown in this embodiment is closed and has a ratchet function. The clamping end has a through hole 25 through the top and bottom. A chamber 26 is located in the main body 20 and communicates with the through hole 25, and a shaft hole 28 is penetrated inward from the other end of the main body 20 in the main body;

A reinforcing piece 30 is an annular body made of iron metal, and has a rib-shaped biting portion 34 on its outer peripheral surface and a radial hollow portion 32 . The reinforcing member 30 is accommodated in the through hole 25 and is closely attached to the surrounding wall of the through hole. The hollow portion 32 corresponds to the chamber 26 . Since the hardness of the reinforcing piece is higher than that of the main body, the rib-shaped engaging portion 34 on the outer peripheral surface engages with the inner wall of the through hole 25 to further enhance the stabilizing effect;

A ratchet mechanism has a ratchet wheel 40 and a ratchet member 42 . The ratchet 40 is accommodated in the reinforcing member 30; the ratchet member 42 is accommodated in the chamber 26, and passes through the hollow portion 32 to be elastically clamped to the ratchet 40, as shown in FIG. 3 , To form a ratchet effect. The top and bottom edges of the reinforcing member 30 and the ratchet 40 are respectively positioned by a flange 27 on the edge of the through hole 25 and a C-shaped buckle 29 , as shown in FIG. 4 .

A reinforcing rod 50 has a rib-shaped insertion portion 52 on the periphery of the front end. The reinforcing rod 50 is passed through the shaft hole 28 of the body, and is fixed in the shaft hole by the insertion portion 52 . The reinforcing rod is adjacent to the clamping end. In addition, a magnet 55 is fixed on the free end of the shaft hole 28 .

In this embodiment, a ratchet wrench is formed after installation, and the sleeve hole 44 of the ratchet 40 is sleeved on the nut for use. When not in use, the wrench can be attracted to a predetermined position with a magnet 55 for storage.

Those shown in Figure 5 and Figure 6 are a wrench 10' of another preferred embodiment of the present invention. The structure of the wrench is basically the same as that of the previous embodiment, and it also has a reinforcing piece 30, a ratchet mechanism, and a reinforcing rod 50, etc. The parts with the same structure use the same reference numerals and will not repeat them. Wherein: a post 46 is inserted in the sleeve hole 44 of the ratchet 40, and the post protrudes from the wrench for inserting the sleeve, and the nut is socketed with the sleeve.

In another preferred embodiment shown in Figure 7 and Figure 8, the wrench 60 is also made of aluminum alloy, and the clamping end 64 formed at one end is the same as that of the first preferred embodiment, which is a closed clamping end, and has a ratchet effect. The other end of the wrench body 62 forms an open clamping end 65 , and the clamping end 65 has a U-shaped inner wall for clamping the nut. A U-shaped slot 66 is defined in the inner wall. A second reinforcing piece 68 is made of iron metal and is U-shaped. The reinforcing piece 68 is embedded in the U-shaped slot 66 of the clamping socket 65 .

9 to 11 are a preferred embodiment of the sleeve 70 provided by the present invention, which is used with a wrench. The sleeve 70 is also made of aluminum alloy, and its top end is provided with a first connection hole 72, which is used to be sleeved on the post 46 provided by the wrench shown in Figure 5, while the bottom end is provided with a second connection hole 74, in order to socket nut. Wherein: the periphery of the connection hole 72 is recessed with a step portion 73 with a large outer diameter and a square shape; it also includes a reinforcing member 75, which is a square iron metal sheet, and has a hole portion 76 in the center, and its aperture The inner diameter of the connection hole 72 is the same, the reinforcing member 75 is embedded in the step portion 73, and the rib-shaped biting portion 77 provided on the periphery of the step portion 73 bites and connects with the periphery of the step portion 73, which can strengthen its fixing state.

When the sleeve 70 is sleeved on the post of the wrench through the connecting hole 72 , the reinforcing member 75 is used as the main stress-receiving part.

In addition, as shown in FIG. 11 , a second reinforcing member 78 is also provided in the second connecting hole 74 at the bottom end of the sleeve, which is also an iron metal sheet, and a hexagonal hole 79 is provided in the center. And this reinforcing piece 78 is embedded in this connecting hole 74, then when this connecting hole 74 sleeves the nut, this reinforcing piece 78 is used as the main force receiving part.

Fig. 12 is another preferred embodiment of the sleeve slip provided by the present invention, wherein: the reinforcing member 95 embedded in the step portion 93 of the sleeve 90 has different shapes, such as the figure shown in the figure, or It is polygonal, and a hole 96 is also provided in the central part. The biting portion 97 provided on the periphery of the reinforcement member 95 can bite into the periphery of the step portion 93, so the reinforcement member has a relatively large contact area in the sleeve, forming a stable state sufficient to withstand torsional force.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still belong to The scope of the technical solution of the present invention.

Claims (9)

1, the spanner of a kind of lightweight and reinforced structure, it includes: a body, have the microscler handle body of at least one bare terminal end, this bare terminal end is in order to turn spiro connecting element; It is characterized in that: described body is made by nonferrous metal; At least one stiffener and at least one reinforcing bar, and the hardness of the two is all than this this height, and this stiffener is located in the described bare terminal end, and this reinforcing bar axially is located in this handle body along described handle body.

2, the spanner of tool lightweight according to claim 1 and reinforced structure, it is characterized in that: wherein said bare terminal end is closed, and is provided with a through hole, to form the position of socket spiro connecting element; Described stiffener is located in the described through hole in the form of a ring.

3, the spanner of tool lightweight according to claim 2 and reinforced structure is characterized in that: the room that is provided with the described through hole of a connection in the wherein said body; Described stiffener periphery is provided with a hollow part corresponding to described room; One ratchet mechanism has a ratchet and the tooth member of pulling, and this ratchet is located in this stiffener, and rotatable; This tooth member of pulling is located in the described room, and passes described hollow part, flexibly is equipped in described ratchet.

4, the spanner of tool lightweight according to claim 1 and reinforced structure, it is characterized in that: wherein said bare terminal end is opening-like, has an inwall that takes the shape of the letter U; Described stiffener also takes the shape of the letter U, and is located in this inwall.

5, the spanner of tool lightweight according to claim 1 and reinforced structure is characterized in that: wherein said bare terminal end inwall is arranged with a caulking groove; Described stiffener is located in this caulking groove.

6, according to the spanner of claim 1,2 or 3 described tool lightweights and reinforced structure, it is characterized in that: an end of wherein said reinforcing bar is provided with an intercalation fixing part, and is fixed in described shaft hole inner wall with this intercalation fixing part.

7, the spanner of tool lightweight according to claim 1 and reinforced structure, it is characterized in that: wherein also comprise a sleeve that turned by this spanner, this sleeve top is provided with one first and connects the hole, in order to be socketed on spanner, the bottom then is provided with one second and connects the hole, in order to the socket spiro connecting element; Wherein said sleeve is made by nonferrous metal; Other has at least one reinforcement, and its profile is predetermined geometry, and its hardness is provided with a hole portion in the central than this sleeve height, and this reinforcement is fixedly arranged on one and connects in the hole.

8, the spanner of tool lightweight according to claim 7 and reinforced structure is characterized in that: the hole peripheral that connects of wherein said reinforcement is concaved with the bigger rank portion of an external diameter, and this reinforcement in the form of sheets, and is located in this rank portion.

9, according to the spanner of claim 7 or 8 described tool lightweights and reinforced structure, it is characterized in that: the outer peripheral edges of wherein said reinforcement are provided with the portion of gnawing, the side face that this portion of gnawing gnaws and connects the hole in described.

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