CN112873111B

CN112873111B - Electric torque wrench

Info

Publication number: CN112873111B
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: 2023-07-04
Anticipated expiration: 2040-12-24
Also published as: CN112873111A

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 matched with a plurality of types of matched sleeves and the matched sleeves are easy to lose; the device comprises a handle, a button is arranged on the handle, a conducting strip is arranged inside the handle, the conducting strip is connected with a switch, a torsion motor is arranged at the front end of the handle, the torsion motor is connected with an output shaft, the output shaft is connected with an installation sleeve, a plugging groove is formed in the installation sleeve, a connecting shaft is inserted in the plugging groove, the connecting shaft is connected with a matching sleeve, an adjusting device is arranged in the matching sleeve, the adjusting device comprises a groove which is symmetrically arranged on the matching sleeve, a plugging rod is inserted in the groove, a clamping block is arranged at the tail end of the plugging rod, the clamping block is symmetrically arranged, an adjusting thread is arranged on the plugging rod, and the plugging rod is movably connected with the matching sleeve.

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 installation and disassembly tool, and is a manual tool for screwing bolts, screws, nuts and other threads to tightly clamp openings or trepanning fasteners of the bolts or the nuts by utilizing a lever principle, the wrench is usually made of carbon or alloy structural steel, and the wrench is usually provided with openings or trepanning clamping the bolts or the nuts at one end or two ends of a handle part, and when in use, external force is applied to the handle part along the rotation direction of the threads, so that the bolts or the nuts can be screwed.

The existing electric spanner is used for reducing the physical consumption when unloading bolts, improving the efficiency of bolt unloading and installation, and the existing electric bolts are matched with the matching sleeves with various sizes so as to be matched with the bolts for improving the matching degree of the bolts with different types, so that the adjustment and the replacement are convenient, but the plurality of matching sleeves are easy to lose, and the bolts are required to be frequently replaced when being unloaded or installed, so that the efficiency is greatly influenced.

Disclosure of Invention

An objective of the embodiments of the present invention is to provide an electric torque wrench, so as to solve the problems set forth in the background art.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

the utility model provides an electronic moment of torsion spanner, includes the handle, be provided with the button on the handle, 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 torsion motor, torsion motor links to each other with the output shaft, the output shaft links to each other with the installation sleeve, be provided with the grafting groove in the installation sleeve, the spliced axle has been inserted in the grafting 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, peg graft on the recess has the peg graft pole, the end of peg pole is provided with the clamp block, the clamp block symmetry sets up, be provided with the adjustment screw thread on the peg pole, swing joint between peg pole and the cooperation sleeve, be provided with the screw ring on the peg pole, the adjustment screw thread is mutually supported with the screw ring, be provided with first spring on the peg pole between clamp block and the cooperation sleeve.

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

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

As a still further scheme of the embodiment of the invention: the installation sleeve is internally provided with a splicing groove, and the splicing groove is in non-circular transmission connection with the connecting shaft.

As a still 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 inserting groove in a matched mode through the quadrangular prism.

As a still further scheme of the embodiment of the invention: the top of grafting 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 connection between cooperation piece and the clamp splice.

As a still 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:

according to the invention, the splicing groove is arranged in the mounting sleeve, and the matched sleeve is movably mounted by combining the splicing groove and the connecting shaft; the bolt cap is clamped by the matching clamping blocks; the first spring is arranged on the inserting connection rod, so that the bolt cap is clamped at the central position, and the stability of bolt installation or unloading is guaranteed; the magnet is arranged at the top of the matched sleeve, so that the bolt can be adsorbed conveniently, and the magnet can be combined to carry out adsorption operation on the bolt when the bolt is completely unloaded and taken out, so that the bolt is prevented from falling and losing after the unloading is completed; the upper side of the connecting shaft is provided with a quadrangular prism to realize non-circular transmission connection between the connecting shaft and the inserting groove, so that effective transmission is realized; the matching block is arranged on the upper side of the connecting shaft and matched with the clamping block arranged in the mounting sleeve, so that the matching sleeve is convenient to clamp, and the matching sleeve is prevented from falling off; the use adaptability of the electric torque wrench is effectively improved through the structure; the number of the matched sleeves is reduced.

Drawings

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

Fig. 2 is an enlarged schematic view of the structure of the electric torque wrench at a.

Fig. 3 is a schematic installation diagram of an adjusting device in an electric torque wrench.

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

In the figure: the handle comprises a handle body, an anti-skid sleeve, a button 3, a conductive sheet 4, a torsion motor 5, an output shaft 6, a mounting sleeve 7, a plugging 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 slider 13, a magnet 14, a groove 15, a clamping block 16, a plugging rod 17, a second spring 18, an adjusting screw 19, a threaded ferrule 20 and a handle 21.

Detailed Description

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

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

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The technical scheme of the patent is further described in detail below with reference to the specific embodiments.

Example 1:

as shown in fig. 1-4, an electric torque wrench comprises a handle 1, 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 output shaft 6 is connected with a mounting sleeve 7, a plug groove 70 is arranged in the mounting sleeve 7, a connecting shaft 9 is inserted in the plug 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 a groove 15 symmetrical on the matching sleeve 10, a plug rod 17 is inserted in the groove 15, a clamping block 16 is arranged at the tail end of the plug rod 17, the clamping block 16 is symmetrical, an adjusting thread 19 is arranged on the plug rod 17, the plug rod 17 is movably connected with the matching sleeve 10, a threaded ferrule 20 is arranged on the plug rod 17, the adjusting thread 19 is mutually matched with the thread ferrule 20, an adjusting device is arranged on the plug rod 17, and a clamping block 21 is arranged between the plug rod 16 and the first spring 12.

Specifically, grooves 15 are symmetrically formed in the matching sleeve 10, a plugging rod 17 is installed by combining the grooves 15, and nuts are clamped by clamping blocks 16 and first springs 12 arranged on the plugging rod 17, so that matching clamping operation of nuts with different sizes is realized; by providing the adjusting screw thread 19 on the plug rod 17, the position of the clamping block 16 is defined in combination with the adjusting screw thread 19 and the screw collar 20, so that an effective fixation between the clamping block 16 and the screw 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 setting 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, drop after avoiding the bolt uninstallation and lose.

Further, a second spring 18 is disposed between the movable slot 11 and the slider 13.

Further, a plugging groove 70 is arranged in the mounting sleeve 7, and the plugging groove 70 is in non-circular transmission connection with the connecting shaft 9.

Further, a quadrangular prism 90 is disposed on the connection shaft 9, and the connection shaft 9 is connected with the plugging slot 70 in a matching manner through the quadrangular prism 90.

Specifically, the transmission is realized through non-circular connection, and the non-circular connection can be specifically performed by combining the quadrangular prism 90, and meanwhile, triangular prisms, pentagonal prisms, hexagonal prisms and the like can be also adopted, so long as the transmission connection between the mounting sleeve 7 and the connecting shaft 9 can be realized.

Example 2:

this example is a further improvement and definition of example 1 based on example 1.

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

further, the top of the inserting groove 70 is provided with a clamping device, the clamping device comprises symmetrically arranged clamping blocks 71, torsion springs are arranged between the clamping blocks 71, the clamping blocks 71 are mutually close to each other to be clamped under the action of the torsion springs, the upper side of the connecting shaft 9 is provided with a matching block 91, and the matching block 91 is connected with the clamping blocks 71 in a matching way.

Specifically, by providing the clamping device in the insertion groove 70, the coupling block 71 and the fitting block 91 fix the coupling shaft 9, so that the fitting 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 socket rod 17 is connected by symmetrically arranging grooves 15 on the matching sleeve 10, the threaded sleeve 20 is installed by combining the adjusting threads 19 and the adjusting threads 19 on the socket rod 17, and the bolt cap is clamped by matching the clamping block 16; by arranging the first spring 12 on the plugging rod 17, the bolt cap is clamped at the central position, so that the stability of bolt installation or unloading is ensured; the magnet 14 is arranged at the top of the matching sleeve 10, so that the bolts can be adsorbed conveniently, and the bolts can be adsorbed by combining with the magnet 14 when the bolts are completely taken out after unloading, so that the bolts are prevented from falling and losing after unloading is completed; the non-circular transmission connection between the connecting shaft 9 and the inserting groove 70 is realized by arranging the quadrangular prism 90 on the upper side of the connecting shaft 9, so that effective transmission is realized; by arranging the matching block 91 on the upper side of the connecting shaft 9 and matching the clamping block 71 arranged in the mounting sleeve 7, the clamping operation of the matching sleeve 10 is convenient, and the matching sleeve 10 is prevented from falling off; the use adaptability of the electric torque wrench is effectively improved through the structure; the number of the fitting sleeves 10 to be provided is reduced.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The electric torque wrench comprises a handle (1), wherein a button (3) is arranged on the handle (1), a conducting strip (4) is arranged in 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 an installation sleeve (7), a plugging groove (70) is arranged in the installation sleeve (7), a connecting shaft (9) is inserted in the plugging 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 a groove (15) symmetrically arranged on the matching sleeve (10), a plugging rod (17) is plugged in the groove (15), a clamping block (16) is symmetrically arranged at the tail end of the plugging rod (17), an adjusting thread (19) is arranged on the plugging rod (17), a ferrule (20) is connected with the plugging rod (17) in a threaded manner, the threaded sleeve (20) is connected with the threaded sleeve (20), be provided with handle (21) on spliced pole (17), spliced pole (17) are provided with first spring (12) between clamp block (16) and cooperation sleeve (10), be provided with movable groove (11) in cooperation sleeve (10), be provided with slider (13) in movable groove (11), be connected with magnet (14) on slider (13), magnet (14) set up the central point of cooperation sleeve (10) upside put, be provided with second spring (18) between movable groove (11) and slider (13), the top of spliced groove (70) is provided with clamping device, clamping device is including clamp block (71) that the symmetry set up, be provided with the torsional spring between clamp block (71), clamp block (71) are close to each other under the effect of torsional spring and press from both sides tightly, the upside of connecting axle (9) is provided with cooperation piece (91), cooperation is connected between cooperation piece (91) and clamp block (71), be provided with third spring (72) between clamp block (71).

2. An electric torque wrench as claimed in claim 1, wherein a socket (70) is provided in the mounting sleeve (7), the socket (70) being in non-circular driving connection with the connecting shaft (9).

3. An electric torque wrench as claimed in claim 2, wherein the connecting shaft (9) is provided with a quadrangular prism (90), and the connecting shaft (9) is connected with the socket groove (70) through the quadrangular prism (90).