CN102152271A - Ratchet type hand tool structure - Google Patents

Abstract

The invention relates to a ratchet wheel type hand tool structure, which is assembled at the head end of a tool of a hand tool by utilizing a ratchet wheel set, the contour dimension of the ratchet wheel set corresponds to the rod diameter of an extension rod of the hand tool, the axis of the ratchet wheel set is parallel to the axis of the extension rod, and the extension rod can be provided with at least one bending part; by utilizing the design, the ratchet wheel set is directly assembled by the tool head, and the unidirectional control of the ratchet wheel set is matched with the bending change of the extension rod, so that the interference during bending is avoided, and the effects of simplifying components and facilitating operation are achieved.

Description

Ratchet type hand tool structure

technical field

The invention relates to a hand tool structure, in particular to a ratchet type hand tool structure.

Background technique

Under the trend of DIY assembly and simple self-maintenance in today's society, various modular hand tools are widely used. In order to enhance the competitiveness of products, in addition to constantly innovating the appearance, the improvement of the use function is also the focus of improvement.

Taking the screwdriver hand tool for basic applications as an example, adding a ratchet one-way set to the existing conventional screwdriver hand tool can make the user's operation easier and simpler. However, as far as all kinds of hand tools with one-way ratchet groups are concerned, although the one-way ratchet groups can improve the convenience of operation, the existing one-way ratchet groups are all installed in the handle of the hand tool or between the handle and the rod body. However, this design also causes several problems:

One, because the conventional ratchet one-way group is all installed in the handle of the hand tool or between the handle and the rod body. Therefore, a fixed sleeve must be combined at the other end of the rod body to allow the screwdriver hand tool to change the screwdriver head, cross, ball or star screwdriver head, otherwise it will be removed when the screwdriver head is directly installed on the ratchet one-way group It is difficult to operate because of the bar body, and then every screwdriver hand tool will be connected with a ratchet one-way group and a fixed sleeve in addition.

Its two, because existing conventional ratchet one-way group all is installed in the handle of hand tool or between handle and rod body. Therefore, if the hand tool is equipped with a direction-changing extension rod at the other end of the rod body (this is a known workpiece, so I will not repeat it here, it is limited by the configuration that the ratchet one-way group can only limit the single axial position, this kind Combined hand tools will not be able to apply the function of the ratchet one-way group. Therefore, if there is a direction-changing operation in the design combination of existing conventional hand tools, it will not be able to continue the function of the ratchet one-way group, making it an invalid component.

Therefore, how to provide a ratchet one-way assembly that can be used on any direction-changing combination hand tool and reduce the component requirements of the hand tool is the goal that the industry wants to improve.

This shows that the above-mentioned existing hand tool structure obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently. In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general products do not have a suitable structure to solve the above-mentioned problems. This is obviously the relevant industry. urgent problem to be solved. Therefore, how to create a new type of ratchet-type hand tool structure is one of the current important research and development topics, and has also become a goal that the industry needs to improve.

In view of the above-mentioned defects in the existing hand tool structure, the inventor actively researches and innovates on the basis of years of rich practical experience and professional knowledge engaged in the design and manufacture of this type of product, and cooperates with the application of academic theory, in order to create a new type of ratchet The type hand tool structure can improve the general existing hand tool structure and make it more practical. Through continuous research, design, and after repeated trial samples and improvements, the present invention with practical value is finally created.

Contents of the invention

The main purpose of the present invention is to overcome the defects existing in the existing hand tool structure and provide a new ratchet hand tool structure. The technical problem to be solved is to reduce the demand for hand tool assembly components, which is very suitable for practical use. .

Another object of the present invention is to provide a new type of ratchet hand tool structure, the technical problem to be solved is to make it not only reduce the demand for hand tool assembly components, but also can be used in any direction-changing combination of hand tools Use ratchet one-way group, thereby more suitable for practicality.

Another object of the present invention is to provide a novel ratchet hand tool structure. The technical problem to be solved is to make it a ratchet hand tool assembly without a handle. Tool links are used for extension, so they are more suitable for practical use.

The purpose of the present invention and the solution to its technical problems are achieved by adopting the following technical solutions. According to a kind of ratchet type hand tool structure proposed by the present invention, it is characterized in that comprising:

a grip;

An extension rod, positioned on the handle, and the extension rod has a virtual central axis corresponding to the handle, the extension rod has a front section and a rear section, and the extension rod is assembled and positioned at one end of the handle with its rear section ;

At least one bending part, the front section and the rear section of the extension rod are pivotally connected by the bending part, and the bending part has a stopper, and the stopper is controlled to displace to position the front section and the rear section of the extension rod;

a ratchet set, which is assembled at one end of the front section of the extension rod, and a virtual central axis of the ratchet set is parallel to the central axis of the extension rod; and

A tool head is installed on the ratchet group.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

The aforementioned ratchet hand tool structure, wherein the bending portion includes: at least one pivot rod, which pivotally connects the front section and the rear section of the extension rod; the extension rod is provided with at least one slot near each pivot rod ; at least one spring installed in the slot of the extension rod; at least one steel ball installed in the slot of the extension rod and against the spring; and at least one stopper in the shape of a hollow tube, and the The limiting member is sleeved on the pivot rod and the extension rod, and at least one positioning groove is opened on the inner wall of the limiting member, and the aforementioned positioning groove is corresponding to the steel ball for sliding into and positioning.

In the aforementioned ratchet hand tool structure, the inner walls of the two ends of the limiting part of the bending part respectively define a positioning groove.

In the aforementioned ratchet-type hand tool structure, the profile size of the ratchet set corresponds to the outer diameter size of the stopper on the extension rod.

In the aforementioned ratchet hand tool structure, the extension rod is T-shaped, N-shaped, cross-shaped or L-shaped.

In the aforementioned ratchet hand tool structure, the tool head is in the shape of a straight screwdriver, a cross-shaped screwdriver, an inner polygonal wrench, a star wrench, or a square tenon.

The purpose of the present invention and the solution to its technical problem also adopt the following technical solutions to achieve. According to a kind of ratchet type hand tool structure proposed by the present invention, it is characterized in that comprising:

a grip;

an extension rod, one end is positioned on the handle, and the extension rod has a predetermined working length, and the front end of the extension rod has a virtual central axis;

A ratchet set, which is assembled on the other end of the extension rod, the outline size of the ratchet set corresponds to the rod diameter dimension of the extension rod, and a virtual central axis of the ratchet set is parallel to the central axis of the front end of the extension rod; as well as

A tool head is installed on the ratchet group.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

In the aforementioned ratchet hand tool structure, the extension rod is T-shaped, N-shaped, cross-shaped or L-shaped.

In the aforementioned ratchet hand tool structure, the tool head is in the shape of a straight screwdriver, a cross-shaped screwdriver, an inner polygonal wrench, a star wrench, or a square tenon.

The purpose of the present invention and its technical problems are solved by adopting the following technical solutions in addition. According to a kind of ratchet type hand tool structure proposed by the present invention, it is characterized in that comprising:

An extension rod is composed of a front section and a rear section, and the front section of the extension rod has a virtual central axis, and the rear section is connected and extended by a preset tool;

At least one bending part, the front section and the rear section of the extension rod are pivotally connected by the bending part, and the bending part has a stopper, and the stopper is controlled to displace to position the front section and the rear section of the extension rod;

a ratchet set, which is assembled at the end of the front section of the extension rod, and a virtual central axis of the ratchet set is parallel to the central axis of the front section; and

A tool head is installed on the ratchet group.

Compared with the prior art, the present invention has obvious advantages and beneficial effects. As can be seen from the above, in order to achieve the above object, the present invention provides a ratchet type hand tool structure, which can reduce the demand for assembly components of the hand tool.

According to an embodiment of the present invention, a handle, an extension rod and a ratchet set are included. The handle is combined with one end of the extension rod, and assembled on the other end of the extension rod by a ratchet set, and the ratchet set is used for assembly of the tool head, so that the axis of the ratchet set is parallel to the axis of the extension rod.

In this way, the use of the ratchet set to directly assemble the tool head can also exert the one-way transformation control effect of the ratchet set. This embodiment can eliminate the need for an additional fixed sleeve at the head end of the hand tool, which can effectively reduce the number of hand tools. The number of components of the tool.

According to another embodiment of the present invention, a ratchet type hand tool structure is provided, which can not only reduce the demand for assembly components of the hand tool, but also can use the ratchet one-way group on any direction-changing combination of the hand tool.

The foregoing embodiments include a handle, an extension rod with a bent portion, and a ratchet set. The handle is combined with one end of the extension rod, and the extension rod has at least one bent part, and the ratchet group is matched and assembled on the other end of the extension rod. Using the aforementioned design, when the extension rod does not change direction with the bending part, the virtual central axis of the ratchet group becomes parallel to the virtual central axis of the front section and the rear section of the extension rod; In the first stage, the ratchet group is not only directly connected to various tool heads, but the virtual central axis of the ratchet group is parallel to the virtual central axis of the front section of the extension rod.

With this embodiment, the axis of the ratchet set will remain parallel to the axis of the front section of the extension rod after the direction change, so that the user can still use the ratchet set in subsequent direction change operations.

It is worth mentioning that another embodiment of the present invention includes a hand tool, an extension rod with a bent portion, and a ratchet set. The aforementioned hand tool is a handle, a T-type wrench, an N-type wrench, a cross-type wrench or an L-type wrench. After the above-mentioned hand tool is combined with the extension rod, when the extension rod is changed into a front section and a rear section by the bending part, the ratchet group can not only be directly connected to various tool heads, but also the virtual central axis of the ratchet group remains Parallel to the virtual central axis of the front section of the extension rod after changing direction, so that the user can still use the ratchet group in subsequent direction changing operations, and will not lose the function of the ratchet group due to the direction change of the extension rod.

Another embodiment of the present invention may be a ratchet hand tool assembly without a handle, and one end of the aforementioned extension rod is designed to be connected and extended by other hand tools.

In the foregoing embodiments, at least one bending portion can be made on the extension rod, and the bending portion includes a pivot rod, a spring, a steel ball and a stopper. The aforementioned pivot rod divides and pivotally connects the extension rod into a front section and a A rear section uses springs and steel balls to keep the stop positioned outside the pivot. In order to prevent the bending part from being bent by the pivot rod under the abutment of the stopper, and when the user needs to bend the extension rod, the stopper only needs to move the stopper to allow the stopper to open the operating space of the pivot, and use the pivot The rod bends the extension rod.

According to yet another embodiment of the present invention, a plurality of bending parts can be made on the extension rod, which effectively increases the angle and direction of the bending transformation of the embodiment.

In addition, the outline dimension of the ratchet set corresponds to the rod diameter of the flush extension bar, or the outline dimension of the ratchet set corresponds to the outer diameter of the stopper of the flush extension bar; thereby allowing the ratchet set to enter the narrow hole with the tool head slots or confined workspaces.

With the above technical solution, the ratchet hand tool structure of the present invention has at least the following advantages and beneficial effects:

1. The ratchet-type hand tool structure of the present invention reduces the demand for assembly components of the hand tool, and is very suitable for practical use.

2. The ratchet-type hand tool structure of the present invention can not only reduce the demand for assembly components of the hand tool, but also can use the ratchet one-way group on any direction-changing combination of the hand tool, so it is more suitable for practical use.

3. The ratchet-type hand tool structure of the present invention is a ratchet-type hand tool assembly without a handle, and one end of the aforementioned extension rod is designed to be connected and extended by other hand tools, which is more suitable for practical use.

To sum up, the present invention relates to a ratchet-type hand tool structure. A ratchet set is used to cooperate and assemble at the head end of the tool head of the hand tool, and the contour size of the ratchet set corresponds to the diameter of an extension rod of the hand tool. , and the axis of the ratchet group is parallel to the axis of the extension rod, and the extension rod can have at least one bent portion; using the aforementioned design, the present invention directly assembles the ratchet group for the tool head, and allows the one-way control of the ratchet group to cooperate with the bending of the extension rod Bending changes, so as to avoid interference during bending, and achieve the effect of simplifying components and facilitating operation. The present invention has significant progress in technology, and has obvious positive effects, and is a novel, progressive and practical new design.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the following preferred embodiments are specifically cited below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a combined appearance view of an embodiment of the present invention.

Fig. 2 is a schematic diagram of a bending state according to an embodiment of the present invention.

3A and 3B are cross-sectional views of the operation of the bending part according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of a bending operation method according to an embodiment of the present invention.

Fig. 5 is an appearance view of another embodiment of the present invention without bending parts.

FIG. 6 is an appearance view of yet another embodiment of the present invention without bending parts.

100: Grip 200: Extension Rod

210: Bending part 211: Pivot

212: spring 213: steel ball

214: Limiting piece 2141: Groove

220: front section 230: middle section

240: rear section 300: ratchet group

400: Tool head 500: L-shaped extension rod

600: extension rod 700: extension tool

Detailed ways

In order to further explain the technical means and effects that the present invention takes to achieve the intended purpose of the invention, below in conjunction with the accompanying drawings and preferred embodiments, the ratchet type hand tool structure proposed according to the present invention is described in terms of its specific implementation, structure, features and features. Efficacy, detailed as follows.

The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. For convenience of description, in the following embodiments, the same elements are denoted by the same numbers.

Please refer to FIG. 1, which shows a combined appearance diagram according to an embodiment of the present invention; please refer to FIG. 2, which shows a schematic diagram of a bending state according to an embodiment of the present invention; please refer to FIGS. 3A and 3B , which shows a cross-sectional view of the action of the bending part according to an embodiment of the present invention; please refer to FIG. 4 , which shows a schematic diagram of a bending operation method according to an embodiment of the present invention.

The structure of a ratchet hand tool in this embodiment includes a handle 100 , an extension rod 200 , a ratchet set 300 and a tool head 400 . Its structure is detailed as follows:

The handle 100 is used for the operator to hold and operate.

The extension rod 200 is provided with two bending parts 210 , and the two bending parts 210 cooperate to divide the extension rod 200 into a front section 220 , a middle section 230 and a rear section 240 . In addition, each bending portion 210 includes a pivot 211, a spring 212, a steel ball 213 and a stopper 214. The aforementioned pivot 211 pivotally connects the front section 220, the middle section 230 and the rear section 240 of the extension rod 200, and the extension rod 200 One end of the front section 220 is assembled and positioned at one end of the handle 100 , and. The extension rod 200 is provided with a receiving groove 201 near each pivot rod 211 , and the spring 212 and the steel ball 213 are installed in the receiving groove 201 . The stopper 214 is hollow tubular, and the stopper 214 is sleeved outside the pivot rod 211 and the extension rod 200, and a positioning groove 2141 is provided on the inner walls of the two ends of the stopper 214, and the positioning groove 2141 can be used to supply steel balls correspondingly. 213 is slid into position; thereby, the stopper 214 of this embodiment can be displaced and positioned under the operation of the user, and the stopper 214 is positioned to maintain the position sleeved outside the pivot 211 and the extension rod 200, or to position The positions of the open pivot 211 and the extension rod 200 are maintained.

The ratchet set 300 is matched and assembled at one end of the rear section 240 of the extension rod 200 . And the contour size of the ratchet set 300 corresponds to the outer diameter of the limiter 214 of the flush extension rod 200, and the central axis of the ratchet set 300 is parallel to the central axis of the extension rod 200; in addition, a square tenon is arranged at the end of the ratchet set 300 .

The tool head 400 is in the form of a sleeve for the assembly of the square tenon of the ratchet set 300. One end is installed on the ratchet set 300 to exert the one-way transformation control of the ratchet set 300. It can also be equipped with a flat screwdriver head (As shown in Figure 2), cross-shaped screwdriver bit, polygonal wrench bit or star wrench bit and other extended working heads.

If the tool head 400 is in the form of a flat-shaped screwdriver, a cross-shaped screwdriver, an internal polygonal wrench or a star-shaped wrench, this embodiment can avoid the need to install a fixed sleeve outside the ratchet set 300 for general hand tools , will not affect the use of the extension rod 200, and indeed effectively reduce the number of components of the hand tool.

It is worth noting that since the ratchet set 300 is located next to the socket tool head or the screwdriver type tool head, the user can adjust the direction change while operating, so the design of the ratchet set 300 close to the tool head 400 will make the direction change The operation is more convenient.

When the present embodiment is in general operation, the user keeps the bending portion 210 of the extension rod 200 at the restricted position (that is, the stopper 214 is sleeved on the pivot rod 211 and the extension rod 200 ), at this time, the front section of the extension rod 200 220, the middle section 230 and the rear section 240 are all maintained on the same virtual central axis, and the ratchet set 300 not only has an outline dimension corresponding to the outer diameter of the stopper 214 of the flush extension bar 200, but also the central axis of the ratchet set 300 is parallel to that of the extension bar 200. central axis. Therefore, the embodiment of the present invention allows the ratchet set 300 to extend into a narrow hole or a restricted working space along with the tool head 400 .

Also refer to Fig. 4, if the user encounters special space restrictions, or when operating the present invention in a more labor-saving manner, first move the position of the two stoppers 214, and allow the steel ball 213 to be positioned by one end of the stopper 214 to the groove 2141 Slide into the positioning groove 2141 at the other end of the stopper 214 . At this time, the positioning position of the limiting member 214 of this embodiment will open the pivot 211 and the extension rod 200 , and no longer restrict the front section 220 , the middle section 230 and the rear section 240 of the extension rod 200 . Therefore, the user can bend the front section 220 and the middle section 230 of the extension rod 200 by 90 degrees, and allow the rear section 240 and the middle section 230 to also bend by 90 degrees; and the tool head 400 of the present invention can be used in a special space. operation, or use the handle 100 to generate a larger torque (easily apply force). The aforementioned technology makes the ratchet set 300 of the present invention not affected by the bending of the extension rod 200 and can still be operated with the rotation of the front section 220 . On the other hand, the ratchet set 300 of this embodiment is located next to the tool head 400. When the user is working, the fingers originally supported by the tool head 400 can operate the ratchet set 300 by the way, so this embodiment has better operation convenience. .

It is worth mentioning that please refer to another embodiment of the present invention shown in FIG. 5. When the extension rod of the present invention is not equipped with a bending portion, the present invention is also applicable to hand tools with a predetermined length or a predetermined bending angle. . This embodiment includes a handle 100 , an L-shaped extension rod 500 , a ratchet set 300 and a tool head 400 . in:

One end of the L-shaped extension rod 500 is positioned on the handle 100 , and the L-shaped extension rod 500 has a preset working length and bending angle, and the front end of the L-shaped extension rod 500 has a virtual central axis.

The ratchet set 300 is assembled on the other end of the L-shaped extension bar 500. The outline size of the ratchet set 300 corresponds to the rod diameter of the flush extension bar 200, and a virtual central axis of the ratchet set 300 is parallel to the central axis of the L-shaped extension bar 500. ;as well as

The tool head 400 is in the shape of a straight screwdriver, and is directly mounted on the ratchet set 300 .

In the foregoing embodiments, the ratchet set 300 is assembled at the front end of the L-shaped extension rod 500 , so as to cooperate with the tool head 400 to exert the one-way transformation control of the ratchet set 300 . In addition, since the outline size of the ratchet set 300 corresponds to the diameter of the flush extension rod 200 , the ratchet set 300 of this embodiment can be extended into a narrow hole or a restricted working space along with the tool head 400 .

Please also refer to FIG. 6. FIG. 6 shows another embodiment of the present invention. This embodiment is a component-type ratchet hand tool structure, including an extension rod 600, at least one bending portion 210, a ratchet set 300 and Tool head 400. Among them, the extension rod 600 of this embodiment is different from the previous embodiments in that a handle is not installed, but at the other end of the extension rod 600 opposite to the tool head 400, a matching element for the extension tool 700 to be connected and extended is made, for example: Type tenon, then allow the extension tool 700 to combine the extension rod 600 to perform operations.

It can be seen from the above embodiments of the present invention that the application of the present invention has the advantages of unlimited work of the ratchet set, simplified components and convenient operation. Although the present invention has been disclosed above in terms of implementation, it is not intended to limit the present invention. Anyone skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall prevail as defined in the scope of the appended patent application.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, can use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but all the content that does not depart from the technical solution of the present invention, according to the present invention Any simple modifications, equivalent changes and modifications made to the above embodiments by the technical essence still belong to the scope of the technical solutions of the present invention.

Claims (10)

1. ratchet-type hand tool is characterized in that including:

One handle;

One extension rod is positioned on this handle, and corresponding this handle tool one virtual center axis of extension rod, and this extension rod has a leading portion and a back segment, and this extension rod is positioned at this handle one end with its back segment assembling;

At least one kink, the leading portion of this extension rod and back segment are articulated by this kink, and this kink has the part of placing restrictions in addition, and this is placed restrictions on the part controlled displacements and makes the leading portion of this extension rod and back segment locate;

One ratchet group, it is assembled in leading portion one end of this extension rod, and the central axis of virtual parallel this extension rod of a central axis of this ratchet group; And

One tool heads is installed on this ratchet group.

2. ratchet-type hand tool according to claim 1 is characterized in that wherein said kink comprises:

At least one hinged arm, its leading portion and back segment with this extension rod articulates;

This extension rod offers at least one tank near this each hinged arm place;

At least one spring is installed in the tank of this extension rod;

At least one steel ball is installed in the tank of this extension rod, and replaces this spring; And

At least one part of placing restrictions on, it is hollow tubular, and this places restrictions on part and be set in outside this hinged arm and this extension rod, and offers at least one detent at this inwall of placing restrictions on part, slips into the location with this steel ball of the corresponding confession of aforementioned detent.

3. ratchet-type hand tool according to claim 2 is characterized in that the part of placing restrictions on of wherein said kink respectively offers a location groove with this inwall of placing restrictions on part two ends.

4. ratchet-type hand tool according to claim 2 is characterized in that placing restrictions on the part outside dimension on corresponding concordant this extension rod of overall size of wherein said ratchet group.

5. ratchet-type hand tool according to claim 1 is characterized in that wherein said extension rod presents T type, N type, cross or L type.

6. ratchet-type hand tool according to claim 1 is characterized in that wherein said tool heads is yi word pattern bottle opener form, cross bottle opener form, interior polygonal spanner form, star spanner form or square trip form.

7. ratchet-type hand tool is characterized in that including:

One handle;

One extension rod, an end is positioned on this handle, and extension rod has preset working length, and this extension rod front end tool one virtual center axis;

One ratchet group, it is assembled in the other end of this extension rod, the bar of corresponding concordant this extension rod of overall size of this ratchet group footpath size, and the central axis of virtual parallel this extension rod front end of a central axis of this ratchet group; And

One tool heads is installed on this ratchet group.

8. ratchet-type hand tool according to claim 7 is characterized in that wherein said extension rod presents T type, N type, cross or L type.

9. ratchet-type hand tool according to claim 7 is characterized in that wherein said tool heads is yi word pattern bottle opener form, cross bottle opener form, interior polygonal spanner form, star spanner form or square trip form.

10. ratchet-type hand tool is characterized in that including:

One extension rod is made up of a leading portion and a back segment, and extension rod leading portion tool one virtual center axis, and this back segment links extension for default instrument;

At least one kink, the leading portion of this extension rod and back segment are articulated by this kink, and this kink has the part of placing restrictions in addition, and this is placed restrictions on the part controlled displacements and makes the leading portion of this extension rod and back segment locate;

One ratchet group, it is assembled in the leading portion end of this extension rod, and the central axis of virtual parallel this leading portion of a central axis of this ratchet group; And

One tool heads is installed on this ratchet group.

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