CN108044552A - A kind of allen wrench and wrench set - Google Patents

Abstract

The present invention relates to the field of hardware tools. Specifically, it provides a hexagonal wrench and a wrench set, which include a torque transmission wrench and a wrench movable head. The wrench movable head includes a housing, a transmission part, and a plurality of screw thimbles. There are multiple slide rails slidingly matched with multiple screw thimbles. The screw thimbles all include a sliding part and a driving part. The driving parts of the screw thimbles all protrude from the housing and jointly form a Matching the driving structure for turning the hexagon socket head cap screws, when multiple screw thimbles slide along multiple slide rails, the drive structure formed by multiple driving ends can be applied to hexagon socket cap screws of different specifications and sizes. It can be screwed for hexagon socket screws of different specifications, and has the advantages of small size, simple structure, portability and low failure rate.

Description

A kind of inner hexagonal wrench and wrench set

technical field

The invention relates to the technical field of hardware tools, in particular to an inner hexagonal wrench and a wrench set.

Background technique

Hexagon socket head screw is a kind of screw whose head is round on the outside and has a concave hexagon in the middle. It is widely used in industrial and mining enterprises and equipment maintenance. The hex wrench is a commonly used hardware tool for tightening and dismounting the hexagon socket screws.

At present, the inner hexagonal wrench is a curved rod with a regular hexagonal cross-section and bent into a right angle. The curved rod is divided into a long handle section and a short handle section. In the regular hexagonal groove of the hexagon socket head screw head, turn the short handle section or the long handle section several times until the bolt is fully tightened or removed. Existing wrenches for fastening hexagonal bolts are individual hexagonal prisms. Due to their small size and many models, and each model can only be operated for one specification of hexagonal socket head screws, in practice In application, so many hexagonal wrenches are not only difficult to store, but also easy to cause loss, and for some non-standard screws, special custom-made matching wrenches are required, which leads to low work efficiency.

Contents of the invention

The object of the present invention is to provide an inner hexagonal wrench, which can be used for screwing hexagonal screws of different specifications, and is small in size, easy to carry and has a low failure rate.

Another object of the present invention is to provide a wrench set, which includes the above-mentioned hexagonal wrench capable of turning hexagonal screws of different specifications, which is small in size, easy to carry and has a low failure rate.

Embodiments of the present invention are achieved like this:

An inner hexagonal wrench, which includes a torque transmission wrench and a wrench movable head. The wrench movable head includes a housing, a transmission part, and a plurality of screw thimbles. Each screw thimble includes a sliding part and a driving part that are connected to each other. The driving parts of multiple screw thimbles protrude from the housing and jointly form a driving structure that matches the rotation groove of the hexagon socket head screw to turn the hexagon socket head screw. When the sliding parts of multiple screw thimbles slide along multiple slide rails, the driving structure formed by multiple driving ends can be applied to hexagon socket screws of different specifications and sizes. A transmission part and a second transmission part detachably connected with the torque transmission wrench, the first transmission part and the second transmission part are connected to each other, and the second transmission part protrudes from the surface of the casing.

In a preferred embodiment of the present invention, the above-mentioned casing is a hollow cylindrical structure, and the slide rails provided on the casing are bar-shaped sliding grooves extending from the axis of the casing to the outer periphery, and there are three or more sliding grooves.

In a preferred embodiment of the present invention, the above-mentioned casing includes a first casing and a second casing that are detachably connected, and the chute includes a first chute and a second chute, and the first chute is connected from the first chute. A bar-shaped chute extending from the axis of the casing to the outer periphery. The first chute is the insertion end of the screw thimble entering the casing. The sliding part of the screw thimble enters the casing from the first chute, and the driving part of the screw thimble protrudes It is located on the housing and outside the first chute; the second chute is a bar-shaped chute extending from the axis of the second housing to the outer periphery, the number and position of the first chute match the second chute, and the screw The sliding part of the thimble is inserted into the casing and is located at the second sliding slot.

In a preferred embodiment of the present invention, each of the plurality of screw thimbles includes a limiting part, and the limiting parts are all connected to the end of the sliding part of the screw thimble away from the driving part, and the second sliding groove is slidingly fitted with the limiting part.

In a preferred embodiment of the present invention, the above-mentioned first transmission part is three or more blades arranged at annular intervals, the number of blades matches the number of slide rails, and the distance between multiple blades is greater than or equal to the width of the rail.

In a preferred embodiment of the present invention, the above-mentioned second transmission part is a polygonal column structure, the second transmission part is arranged in the center of the first transmission part and protrudes from the first transmission part, and the torque transmission wrench is provided with the second transmission part. matching connection holes.

In a preferred embodiment of the present invention, the above-mentioned second transmission part is provided with a fixing part for clamping the torque transmission wrench, and the fixing part is a protruding structure.

In a preferred embodiment of the present invention, the above-mentioned screw thimble includes a connecting part, one end of the connecting part is connected with the end of the driving part close to the housing, the other end of the connecting part is connected with the end of the sliding part close to the driving part, and the connecting part The outer diameter gradually increases from an end of the connecting part close to the sliding part to an end of the connecting part close to the driving part along the axis of the connecting part.

In a preferred embodiment of the present invention, the above-mentioned sliding part is arranged parallel to the driving part, and the connecting part is perpendicular to the sliding part and the driving part.

A wrench set includes the above-mentioned hexagonal wrench.

The beneficial effects of the embodiments of the present invention are:

The invention provides an inner hexagonal wrench, which includes a torque transmission wrench and a wrench movable head. The wrench movable head includes a casing, a transmission part, and a plurality of screw thimbles. Each screw thimble includes a sliding part and a driving part that are connected to each other. The driving parts of multiple screw thimbles protrude from the housing and jointly form a hexagonal groove that matches the inner hexagonal screw to rotate the inner hexagonal screw. The driving structure of the hexagonal screw, when the sliding parts of multiple screw thimbles slide along multiple slide rails, the driving structure formed by multiple driving ends can be suitable for hexagonal screws of different specifications and sizes. The first transmission part that rotates the screw thimble and the second transmission part that is detachably connected with the torque transmission wrench, the first transmission part and the second transmission part are connected to each other, and the second transmission part protrudes from the surface of the casing. It can be screwed for hexagon socket screws of different specifications, is small in size, easy to carry and has a low failure rate. In addition, the present invention also provides a wrench set, which includes the above-mentioned hexagonal wrench that can be used for screwing hexagonal screws of different specifications, is small in size, easy to carry, and has a low failure rate.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

Fig. 1 is the structural representation of the Allen wrench provided by the first embodiment of the present invention;

Fig. 2 is a schematic structural view of the screw thimble of the hexagonal wrench in Fig. 1;

Fig. 3 is a schematic structural view of the combination of three screw thimbles of the Allen wrench provided in the first embodiment of the present invention;

Fig. 4 is a structural schematic view of the screw thimble and the transmission part of the hexagonal wrench provided by the first embodiment of the present invention under the first viewing angle;

FIG. 5 is a structural schematic view of the screw thimble and the transmission member in FIG. 4 at a second viewing angle.

In the figure: 10-hexagonal wrench; 100-torque transmission wrench; 200-wrench movable head; 210-housing; 211-slide rail; 230-screw thimble; 231-sliding part; 237-connecting part; 239-limiting part; 240-transmission part; 241-first transmission part; 243-second transmission part.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is some embodiments of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

first embodiment

Please refer to accompanying drawing 1, a kind of inner hexagonal wrench 10 provided in this embodiment, it includes torque transmission wrench 100 and wrench movable head 200, and wrench movable head 200 can be suitable for matching the inner hexagonal screw of different specification, and structure is light and handy, The small size avoids the need to carry a whole set of different sizes of the traditional hex wrench 10 .

Specifically, please refer to accompanying drawings 1-3, the wrench movable head 200 includes a casing 210, a transmission member 240, and a plurality of screw thimbles 230, and the casing 210 is provided with a plurality of slide rails that are slidably matched with the plurality of screw thimbles 230 211, each screw thimble 230 includes a sliding part 231 and a driving part 233 connected to each other, and the driving parts 233 of a plurality of screw thimbles 230 protrude from the housing 210 and jointly form a hexagonal groove corresponding to the hexagonal socket screw. Match the driving structure 235 for turning the inner hexagonal screw. When multiple screw thimbles 230 slide along the plurality of slide rails 211, the driving structure 235 formed by multiple driving ends can be applied to different sizes of inner hexagonal screws and transmission parts 240 includes a first transmission part 241 for driving a plurality of screw thimbles 230 to rotate and a second transmission part 243 detachably connected with the torque transmission wrench 100, the first transmission part 241 and the second transmission part 243 are connected to each other, and the second The second transmission part 243 protrudes from the surface of the casing 210 .

The function of the above-mentioned screw thimble 230 is to block the hexagon socket head screw. The driving end of the screw thimble 230 slides through the slide rail 211 and can be used to block the hexagon socket head screw of different specifications. When in use, the operator transmits the wrench 100 by turning the torque. The transfer wrench 100 rotates the hexagon socket screw that the screw thimble 230 is stuck on through the transmission member 240 .

Further, the housing 210 is a hollow cylindrical structure, and the sliding rails 211 provided on the housing 210 are bar-shaped sliding grooves extending from the axis of the housing 210 to the outer periphery, and there are three or more sliding grooves. In this embodiment, the housing 210 is a hollow cylindrical structure, and the sliding rail 211 extends outward from the axis of the housing 210 means that the sliding rail 211 is from the central position of the housing 210 to the outer circumference along the radius of the housing 210 The bar-shaped chute that extends sideways, the number of chute is greater than or equal to the number of the sliding part 231 of screw thimble, and the number of sliding part 231 and the driving part 233 of screw thimble 230 are equal, and driving part 233 is used for Clamp the hexagonal groove of the inner hexagonal screw, and three or more grooves can avoid possible slippage during the rotation, so that the inner hexagonal screw can be better clamped to fix it Screw it, so the number of chutes is set to three or more. It should be noted that, in other embodiments, the shape of the housing 210 can also be a hollow polygonal prism structure or a hollow truncated conical structure, etc., and the number of chutes can be three, four, five or six according to actual needs. between optional settings.

Further, the casing 210 includes a first casing and a second casing that are detachably connected, and the chute includes a first chute and a second chute, and the first chute extends from the axis of the first casing to the outer periphery. Extended bar-shaped chute, the first chute is the insertion end of the screw thimble 230 into the housing 210, the sliding part 231 of the screw thimble 230 enters the housing 210 from the first chute, specifically, the sliding of the screw thimble 230 Part 231 and driving part 233 are connected to each other, sliding part 231 enters housing 210 from the first chute, and driving part 233 of screw thimble 230 protrudes from housing 210 and is located outside the first chute; The axis of the second casing extends to the outer circumference of the bar-shaped chute, the number and position of the first chute match the second chute, the sliding part 231 of the screw thimble 230 is inserted into the casing 210 and is located at the second chute .

Further, referring to the accompanying drawing 2 again, a plurality of screw thimbles 230 each include a limiting portion 239, and the limiting portions 239 are connected to one end of the sliding portion 231 of the screw thimble 230 away from the driving portion 233, and the second sliding groove and the limiting portion 239 slip fit. The function of the limiting part 239 is to fix the screw thimble 230 on the housing 210, so that the screw thimble 230 can slide on the housing 210 to change the wrench movable head 200 to hold different specifications of hexagon socket screws. In this embodiment, the limiting part 239 is a triangular body, and the limiting part 239 is a structure whose overall or partial outer diameter is larger than the sliding part 231 of the screw thimble 230. It should be noted that in other embodiments, the structure of the limiting part It can be spherical, cube, cuboid, trapezoidal structure, etc.

Further, referring to accompanying drawings 4-5, the above-mentioned transmission member 240 includes a first transmission part 241, and the first transmission part 241 is three or more blades arranged at annular intervals, the number of blades is the same as that of the slide rail 211. The numbers match, and the distance between multiple blades is greater than or equal to the width of the slide rail 211 . The first transmission part 241 is used to transmit the power of the torque transmission wrench 100 to the screw thimble 230, so as to drive the driving part 233 of the screw thimble 230 stuck on the hexagon socket screw, so as to rotate the hexagon socket screw.

Further, the transmission part 240 includes a second transmission part 243, the second transmission part 243 is a polygonal column structure, the second transmission part 243 is arranged in the center of the first transmission part 241 and protrudes from the first transmission part 240, and the torque transmission The wrench 100 is provided with a connecting hole matched with the second transmission part 243 . The second transmission part 243 is a connecting piece for the wrench adjustable head 200 and the torque transmission wrench 100, and also serves as the kinetic energy of the torque transmission wrench 100 to the first transmission part 241, so as to drive the screw thimble 230 to turn the hexagon socket head screw The transmission member 240. The second transmission part 243 also includes a fixing part for clamping the torque transmission wrench 100, and the fixing part is a raised structure. In this embodiment, the second transmission part 243 is a square prism, and the fixed part on the second transmission part 243 is a semicircular convex structure. Stable, making force easier and more convenient.

In this embodiment, the torque transmission wrench 100 is an L-shaped hollow cylindrical structure, and the shape and size of the connection hole of the torque transmission wrench 100 match the shape and size of the second transmission part 243 . The L-shaped torque transmission wrench 100 includes a long rod and a short rod connected to each other, and the free end of the short rod is connected to the second transmission part 243 . It should be noted that, in other embodiments, the torque transmission wrench 100 can be a straight cylindrical hollow column structure, the above-mentioned connecting hole is arranged at the center of the straight cylinder, and one end of the straight torque transmission wrench is connected to the second transmission part 243, The other end can be connected with an electric drill. Specifically, the electric drill can be inserted into the end of the straight torque transmission wrench away from the second transmission part 243, so that the kinetic energy of the electric drill can be transmitted to the wrench movable head 200 through the torque transmission wrench to turn the screw.

Further, the screw thimble 230 includes a connecting part 237, one end of the connecting part 237 is connected with the end of the driving part 233 close to the housing 210, and the other end of the connecting part 237 is connected with the end of the sliding part 231 close to the driving part 233, and the connecting part 237 The outer diameter of the connecting portion 237 gradually increases from the end of the connecting portion 237 close to the sliding portion 231 to the end of the connecting portion 237 close to the driving portion 233 along the axis of the connecting portion 237 . The reason why the outer diameter of the connecting portion 237 of the screw thimble 230 gradually increases near the end of the driving portion 233 is that, during the rotation process, the connecting portion 237 of the screw thimble 230 plays the role of linking up and down, and the connecting portion 237 absorbs the force received by the sliding portion 231. Circumferential power is transmitted to the drive part 233, so that the drive part 233 that holds the hexagon socket screw drives the hexagon socket screw to rotate. Therefore, the increase in the outer diameter can make the force of the screw thimble 230 more stable, and the service life of the screw thimble 230 is longer .

Furthermore, the sliding part 231 is arranged parallel to the driving part 233, and the connecting part 237 is perpendicular to the sliding part 231 and the driving part 233. One end of part 231.

In summary, the present invention provides a hexagon socket wrench, which includes a torque transmission wrench and a wrench movable head. The wrench movable head includes a housing, a transmission part, and a plurality of screw thimbles. A plurality of sliding rails that are slidably matched, each screw thimble includes a sliding part and a driving part that are connected to each other, and the driving parts of the multiple screw thimbles protrude from the housing and jointly form a hexagonal groove corresponding to the hexagonal socket screw. The drive structure is matched to turn the hexagon socket head cap screw. When the sliding part of multiple screw thimbles slides along multiple slide rails, the drive structure formed by multiple drive ends can be applied to hexagon socket cap screws of different specifications and sizes. The transmission parts include: The first transmission part used to drive a plurality of screw thimbles to rotate and the second transmission part detachably connected with the torque transmission wrench, the first transmission part and the second transmission part are connected to each other, and the second transmission part protrudes from the surface of the shell out. It can be screwed for hexagon socket screws of different specifications, and is small in size, easy to carry and low in failure rate. In addition, the present invention also provides a wrench set, which includes the above-mentioned hexagonal wrench that can be used for screwing hexagonal screws of different specifications, is small in size, easy to carry, and has a low failure rate.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. a kind of allen wrench, which is characterized in that it includes moment and transfers spanner and spanner movable head, and the spanner is lived Dynamic head includes housing, driving member and multiple screw thimbles, and the housing is equipped with and is slidably matched with multiple screw thimbles A plurality of slide, each screw thimble includes the sliding part and driving portion of interconnection, multiple screw thimbles The driving portion protrude from the housing and be collectively formed and match with the hex-shaped recess of hexagon socket head cap screw to turn The driving structure of hexagon socket head cap screw is stated, it is more when the sliding part of multiple screw thimbles is slided along a plurality of slide The driving structure that a driving end is collectively formed is applicable to hexagon socket head cap screw of different size and specifications, the driving member The detachable company of spanner is transferred including the first driving section for being used to that multiple screw thimbles to be driven to rotate and with the torque The second driving section connect, first driving section and second driving section are connected with each other, and second driving section is from described Surface of shell protrudes.

2. allen wrench according to claim 1, which is characterized in that the housing is hollow column structure, described The slide set on housing is the bar shaped sliding slot to extend outside from the axis of the housing, and the sliding slot is three or three It is more than item.

3. allen wrench according to claim 2, which is characterized in that the housing includes the first of detachable connection Housing and second shell, the sliding slot include the first sliding groove and the second sliding slot, and the first sliding groove is from described first The bar shaped sliding slot that the axis of housing extends outside, the first sliding groove enter the insertion of the housing for the screw thimble End, the sliding part of the screw thimble entered from the first sliding groove in the housing, the screw thimble it is described Driving portion protrudes from the housing and outside the first sliding groove；Second sliding slot be from the axis of the second shell to The bar shaped sliding slot of periphery extension, number and the position and second sliding slot of the first sliding groove match, the screw thimble The sliding part be inserted into the housing and at second sliding slot.

4. allen wrench according to claim 3, which is characterized in that multiple screw thimbles include /V Portion, the limiting section are all connected to the described one end of the sliding part of screw thimble away from the driving portion, and described second slides Slot is slidably matched with the limiting section.

5. allen wrench according to claim 1, which is characterized in that first driving section is set for annular space The blade of three or three or more, the number of the blade and the number of the slide match, between multiple blades Spacing is greater than or equal to the width of the slide.

6. allen wrench according to claim 1, which is characterized in that second driving section be polygon prism structure, institute The second driving section is stated arranged on the center of first driving section and protrudes from first driving member, the torque is transferred spanner and set There is the connecting hole to match with second driving section.

7. allen wrench according to claim 6, which is characterized in that second driving section is equipped with for blocking The fixed part that torque transfers spanner is stated, the fixed part is bulge-structure.

8. allen wrench according to claim 1, which is characterized in that the screw thimble includes connecting portion, described One end of connecting portion is connected with the driving portion close to one end of the housing, the other end of the connecting portion and the sliding part It is connected close to one end of the driving portion, the outer diameter of the connecting portion is since the connecting portion is close to one end of the sliding part Gradually increase to one end of the close driving portion of the connecting portion along the axis of the connecting portion.

9. allen wrench according to claim 8, which is characterized in that the sliding part is parallel with the driving portion to be set It puts, the connecting portion is perpendicular to the sliding part and the driving portion.

10. a kind of wrench set, which is characterized in that it is included just like claim 1~9 any one of them allen wrench.