CN112873111A

CN112873111A - Electric torque wrench

Info

Publication number: CN112873111A
Application number: CN202011545592.7A
Authority: CN
Inventors: 陈亮亮
Original assignee: Shanghai Luoma Power Technology Co ltd
Current assignee: Shanghai Luoma Power Technology Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-06-01
Anticipated expiration: 2040-12-24
Also published as: CN112873111B

Abstract

The invention discloses an electric torque wrench, relates to the technical field of wrenches, and mainly solves the problems that the existing electric wrench needs to be provided with matched sleeves of various types and the matched sleeves are easy to lose; the device includes the handle, be provided with the button on hand, the inside conducting strip that is provided with of handle, the conducting strip links to each other with the switch, the front end of handle is provided with twists reverse the motor, it links to each other with the output shaft to twist reverse the motor, the output shaft links to each other with the installation sleeve, be provided with the inserting groove in the installation sleeve, it has the connecting axle to peg graft in the inserting groove, the connecting axle links to each other with the cooperation sleeve, be provided with adjusting device in the cooperation sleeve, adjusting device includes the recess of symmetry on the cooperation sleeve, it has the inserted bar to peg graft on the recess, the end of inserted bar is provided with presss from both sides tight piece, press from both sides tight piece symmetry and set up, be provided with the adjustment.

Description

Electric torque wrench

Technical Field

The invention relates to the technical field of torque wrenches, in particular to an electric torque wrench.

Background

The wrench is a common mounting and dismounting tool, and is a hand tool for screwing bolts, screws, nuts and other screw threads to tightly hold the opening or trepanning fasteners of the bolts or the nuts by utilizing the lever principle, the wrench is usually made of structural steel made of carbon or alloy materials, the wrench is usually provided with an opening or trepanning for clamping the bolts or the nuts at one end or two ends of a handle part, and when the wrench is used, external force is applied to the handle part along the rotation direction of the screw threads, so that the bolts or the nuts can be screwed.

Thereby the physical demands when current spanner adopts electric spanner to reduce the uninstallation bolt more, the efficiency of promotion bolt uninstallation and installation, current electric bolt is in order to promote the degree of cooperation to different model bolts, thereby need form a complete set to set up the cooperation sleeve of multiple size cooperation bolt, be convenient for adjust the change, nevertheless set up multiple cooperation sleeve and appear losing easily, and need frequently change when carrying out bolt uninstallation or installation, very big influence efficiency.

Disclosure of Invention

An embodiment of the present invention is directed to an electric torque wrench, so as to solve the problems mentioned in the background art.

In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:

an electric torque wrench comprises a handle, wherein a button is arranged on the handle, a conducting strip is arranged in the handle and is connected with a switch, a torsion motor is arranged at the front end of the handle and is connected with an output shaft, the output shaft is connected with an installation sleeve, an insertion groove is arranged in the installation sleeve, a connecting shaft is inserted in the insertion groove and is connected with a matching sleeve, an adjusting device is arranged in the matching sleeve and comprises grooves symmetrically arranged on the matching sleeve, an insertion rod is inserted in the grooves, clamping blocks are arranged at the tail end of the insertion rod and symmetrically arranged, adjusting threads are arranged on the insertion rod, the insertion rod is movably connected with the matching sleeve, a thread ferrule is arranged on the insertion rod, and the adjusting threads are matched with the thread ferrule, the plug rod is provided with a handle, and a first spring is arranged between the clamping block and the matching sleeve of the plug rod.

As a further scheme of the embodiment of the invention: the improved magnetic coupling is characterized in that a movable groove is formed in the matching sleeve, a sliding block is arranged in the movable groove, a magnet is connected to the sliding block, and the magnet is arranged at the center of the upper side of the matching sleeve.

As a further scheme of the embodiment of the invention: and a second spring is arranged between the movable groove and the sliding block.

As a further scheme of the embodiment of the invention: the mounting sleeve is internally provided with an inserting groove, and the inserting groove is connected with the connecting shaft in a non-circular transmission manner.

As a further scheme of the embodiment of the invention: the connecting shaft is provided with a quadrangular prism, and the connecting shaft is connected with the plug-in connection groove in a matching manner through the quadrangular prism.

As a further scheme of the embodiment of the invention: the top of inserting groove is provided with clamping device, clamping device includes the clamp splice that the symmetry set up, be provided with the torsional spring between the clamp splice, the clamp splice is close to each other under the effect of torsional spring and presss from both sides tightly, the upside of connecting axle is provided with the cooperation piece, cooperation piece and clamp splice between the cooperation be connected.

As a further scheme of the embodiment of the invention: and a third spring is arranged between the clamping blocks.

Compared with the prior art, the embodiment of the invention has the beneficial effects that:

the insertion groove is arranged in the mounting sleeve, and the matching sleeve is movably mounted by combining the insertion groove and the connecting shaft; the matching sleeve is symmetrically provided with grooves for connecting the insertion rod, the insertion rod is provided with adjusting threads, a thread ferrule is mounted by combining the adjusting threads, and the bolt cap is clamped by matching with the clamping block; the first spring is arranged on the insertion rod, so that the bolt cap is guaranteed to be clamped at the central position, and the mounting or dismounting stability of the bolt is guaranteed; the magnet is arranged at the top of the matching sleeve, so that the bolt is conveniently adsorbed, and the magnet can be combined to adsorb the bolt when the bolt is completely taken out after being unloaded, so that the bolt is prevented from falling and losing after the unloading is finished; the non-circular transmission connection between the connecting shaft and the inserting groove is realized by arranging the quadrangular prism on the upper side of the connecting shaft, so that the effective transmission is realized; the matching block is arranged on the upper side of the connecting shaft and is matched with the clamping block arranged in the sleeve, so that the matching sleeve is convenient to clamp, and the matching sleeve is prevented from falling; the use adaptability of the electric torque wrench is effectively improved through the structure; the number of the fitting sleeves is reduced.

Drawings

Fig. 1 is a schematic structural diagram of an electric torque wrench.

Fig. 2 is an enlarged schematic view of a portion a of an electric torque wrench.

Fig. 3 is a schematic view of an adjustment device installed in an electric torque wrench.

Fig. 4 is a schematic structural view of a threaded socket of an electric torque wrench.

In the figure: the anti-skidding type electric wrench comprises a handle 1, an anti-skidding sleeve 2, a button 3, a conducting strip 4, a torsion motor 5, an output shaft 6, an installation sleeve 7, an insertion groove 70, a clamping block 71, a third spring 72, a connecting shaft 9, a quadrangular prism 90, a matching block 91, a matching sleeve 10, a movable groove 11, a first spring 12, a sliding block 13, a magnet 14, a groove 15, a clamping block 16, an insertion rod 17, a second spring 18, an adjusting thread 19, a thread ferrule 20 and a handle 21.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Example 1:

as shown in fig. 1-4, an electric torque wrench comprises a handle 1, a button 3 is provided on the handle 1, a conductive sheet 4 is provided inside the handle 1, the conductive sheet 4 is connected with a switch, a torsion motor 5 is provided at the front end of the handle 1, the torsion motor 5 is connected with an output shaft 6, the output shaft 6 is connected with a mounting sleeve 7, an insertion groove 70 is provided in the mounting sleeve 7, a connecting shaft 9 is inserted in the insertion groove 70, the connecting shaft 9 is connected with a matching sleeve 10, an adjusting device is provided in the matching sleeve 10, the adjusting device comprises grooves 15 symmetrical to the matching sleeve 10, an insertion rod 17 is inserted in the grooves 15, clamping blocks 16 are provided at the ends of the insertion rod 17, the clamping blocks 16 are symmetrically provided, an adjusting thread 19 is provided on the insertion rod 17, the insertion rod 17 is movably connected with the matching sleeve 10, the plug rod 17 is provided with a thread ferrule 20, the adjusting thread 19 is matched with the thread ferrule 20, the plug rod 17 is provided with a handle 21, and the plug rod 17 is provided with a first spring 12 between the clamping block 16 and the matching sleeve 10.

Specifically, the grooves 15 are symmetrically arranged on the matching sleeve 10, the insertion rod 17 is installed by combining the grooves 15, and the nuts are clamped by the clamping blocks 16 and the first springs 12 arranged on the insertion rod 17, so that the nuts of various sizes and models are matched and clamped; the position of the clamping block 16 is defined by the adjusting thread 19 on the plug rod 17, in combination with the adjusting thread 19 and the threaded collar 20, so that an effective fixation between the clamping block 16 and the bolt cap is ensured.

Further, a movable groove 11 is formed in the matching sleeve 10, a sliding block 13 is arranged in the movable groove 11, a magnet 14 is connected to the sliding block 13, and the magnet 14 is arranged at the center of the upper side of the matching sleeve 10.

Specifically, through set up movable groove 11 in cooperation sleeve 10, combine movable groove 11 to set up slider 13 to install magnet 14, be convenient for can adsorb the operation to the bolt when the bolt uninstallation, avoid the bolt uninstallation after drop lose.

Further, a second spring 18 is arranged between the movable groove 11 and the sliding block 13.

Further, an inserting groove 70 is formed in the mounting sleeve 7, and the inserting groove 70 is connected with the connecting shaft 9 in a non-circular transmission mode.

Further, a quadrangular prism 90 is arranged on the connecting shaft 9, and the connecting shaft 9 is connected with the plug groove 70 through the quadrangular prism 90 in a matching manner.

Specifically, the transmission is realized through the non-circular connection, specifically, the non-circular connection can be performed in combination with the quadrangular prism 90, and meanwhile, a triangular prism, a pentagonal prism, a hexagonal prism and the like can be adopted, as long as the transmission connection between the mounting sleeve 7 and the connecting shaft 9 can be realized.

Example 2:

this embodiment is a further improvement and a limitation of embodiment 1 on the basis of embodiment 1.

An electric torque wrench comprising all of the components of embodiment 1, further comprising:

furthermore, a clamping device is arranged at the top of the insertion groove 70, the clamping device comprises clamping blocks 71 which are symmetrically arranged, a torsion spring is arranged between the clamping blocks 71, the clamping blocks 71 are close to each other and clamped under the action of the torsion spring, a matching block 91 is arranged on the upper side of the connecting shaft 9, and the matching block 91 is connected with the clamping blocks 71 in a matching manner.

Specifically, the clamping device is arranged in the insertion groove 70, and the connecting shaft 9 is fixed by combining the clamping block 71 and the matching block 91, so that the matching sleeve 10 and the mounting sleeve 7 are prevented from slipping off.

Further, a third spring 72 is disposed between the clamping blocks 71.

Specifically, the third spring 72 is provided to raise the firmness between the clamp block 71 and the mating block 91.

The working principle of the embodiment of the invention is as follows:

as shown in fig. 1 to 4, the fitting sleeve 10 is movably mounted by providing the insertion groove 70 in the mounting sleeve 7, and combining the insertion groove 70 and the connecting shaft 9; the matching sleeve 10 is symmetrically provided with the grooves 15 to connect the insertion rod 17, the insertion rod 17 is provided with the adjusting threads 19, the adjusting threads 19 are combined to install the threaded ferrule 20, and the clamping block 16 is matched to clamp the bolt cap; the first spring 12 is arranged on the insertion rod 17, so that the bolt cap is guaranteed to be clamped at the central position, and the mounting or dismounting stability of the bolt is guaranteed; the magnet 14 is arranged at the top of the matching sleeve 10, so that the bolt can be conveniently adsorbed, and the magnet 14 can be combined to adsorb the bolt when the bolt is completely unloaded and taken out, so that the bolt is prevented from falling and losing after unloading is finished; the non-circular transmission connection between the connecting shaft 9 and the inserting groove 70 is realized by arranging the quadrangular prism 90 at the upper side of the connecting shaft 9, so that the effective transmission is realized; the matching block 91 is arranged on the upper side of the connecting shaft 9 and matches with the clamping block 71 arranged in the mounting sleeve 7, so that the matching sleeve 10 is convenient to clamp, and the matching sleeve 10 is prevented from falling; the use adaptability of the electric torque wrench is effectively improved through the structure; the number of arrangement of the fitting sleeves 10 is reduced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An electric torque wrench comprises a handle (1), wherein a button (3) is arranged on the handle (1), a conducting strip (4) is arranged inside the handle (1), the conducting strip (4) is connected with a switch, a torsion motor (5) is arranged at the front end of the handle (1), the torsion motor (5) is connected with an output shaft (6), the electric torque wrench is characterized in that the output shaft (6) is connected with a mounting sleeve (7), an insertion groove (70) is arranged in the mounting sleeve (7), a connecting shaft (9) is inserted in the insertion groove (70), the connecting shaft (9) is connected with a matching sleeve (10), an adjusting device is arranged in the matching sleeve (10), the adjusting device comprises grooves (15) symmetrically arranged on the matching sleeve (10), an insertion rod (17) is inserted in the grooves (15), and a clamping block (16) is arranged at the tail end of the insertion rod (17), the clamping block (16) is symmetrically arranged, an adjusting thread (19) is arranged on the insertion rod (17), the insertion rod (17) is movably connected with the matching sleeve (10), a thread ferrule (20) is arranged on the insertion rod (17), the adjusting thread (19) is matched with the thread ferrule (20), a handle (21) is arranged on the insertion rod (17), and a first spring (12) is arranged between the clamping block (16) and the matching sleeve (10) on the insertion rod (17).

2. An electric torque wrench according to claim 1, characterized in that a movable slot (11) is provided in the engagement sleeve (10), a slide block (13) is provided in the movable slot (11), a magnet (14) is connected to the slide block (13), and the magnet (14) is provided at the center of the upper side of the engagement sleeve (10).

3. An electric torque wrench according to claim 2, characterised in that a second spring (18) is arranged between the active slot (11) and the slide (13).

4. An electric torque wrench as claimed in claim 1, characterised in that the mounting sleeve (7) is provided with an insertion slot (70), the insertion slot (70) being in non-circular driving connection with the connecting shaft (9).

5. The electric torque wrench as claimed in claim 4, wherein the connection shaft (9) is provided with a quadrangular prism (90), and the connection shaft (9) is connected with the insertion groove (70) in a matching manner through the quadrangular prism (90).

6. The electric torque wrench as claimed in claim 1, wherein a clamping device is arranged at the top of the insertion slot (70), the clamping device comprises symmetrically arranged clamping blocks (71), a torsion spring is arranged between the clamping blocks (71), the clamping blocks (71) are clamped close to each other under the action of the torsion spring, a matching block (91) is arranged on the upper side of the connecting shaft (9), and the matching block (91) is matched and connected with the clamping blocks (71).

7. An electric torque wrench according to claim 6, characterised in that a third spring (72) is arranged between the clamping blocks (71).