CN117940251A - Electric wrench and electric wrench system - Google Patents

Abstract

An electric wrench (10) and an electric wrench system (100). The electric wrench (10) comprises a shell (11) and a wrench assembly (12), wherein the shell (11) is provided with a containing cavity (110) and a connecting cavity (112) adjacent to the containing cavity (110), and the wrench assembly (12) is arranged in the containing cavity (110); the connecting cavity (112) is used for connecting a connecting end (320) of a power supply device (32) with an automobile starting function, so that the wrench assembly (12) is electrically connected with the connecting end (320) of the power supply device (32) to obtain electric energy from the power supply device (32). The detachable power supply equipment simplifies the structure of the electric wrench, is convenient to carry, and further enriches the functions of the power supply equipment.

Description

Electric wrench and electric wrench system Technical Field

The application belongs to the field of electric tools, and particularly relates to an electric wrench and an electric wrench system.

Background

Along with the continuous increase of the automobile possession in China, automobile tools are also continuously enriched, and particularly, some emergency shelter tools, such as a starting power supply, an inflating pump, a jack and the like, become necessary tools for vehicle travel. The traditional electric wrench can work only by plugging in electricity when in use, and the use environment is limited and is extremely inconvenient to bind. Existing vehicles, devices, or electronic equipment are typically configured with a self-powered power source to power various components within. For example, an automobile battery is a device for supplying power to various electronic devices on an automobile. With the development of battery material technology, the capacity of batteries has been greatly improved, and the application range of batteries has been extended from some low-power electronic electric devices to some high-power electric devices, such as electric wrenches.

However, the battery performance of the existing electric wrench is single, i.e. the electric wrench can only be used for supplying power to the electric wrench, and when the electric wrench is in an idle state (the electric wrench does not need to work), the battery is in the idle state, so that the utilization rate of the battery of the electric wrench is lower. If the battery is not used for a long time, the capacity and the service life of the battery are reduced, and the performance of the battery is further affected.

On the other hand, the wireless electric wrench matched with the battery can only be used as an electric wrench, and the function is quite single. And wireless electric spanner is in order to realize electric, need carry the battery, makes it very heavy. The weight of the wireless electric wrench is overweight, and the wireless electric wrench has single function, so that the power for purchasing and carrying the wireless electric wrench by a user is reduced.

Disclosure of Invention

The application aims at the defects of the prior art and provides an electric wrench and an electric wrench system, wherein the electric wrench can be matched with power equipment with an automobile starting function, so that the application range of the power equipment with the automobile starting function is expanded, and the electric wrench is more portable, so that the technical problems are solved.

The application provides an electric wrench, which comprises a shell and an operation assembly, wherein the shell is provided with a containing cavity and a combination part adjacent to the containing cavity, and the operation assembly is arranged in the containing cavity; the combination part is used for being connected with a connecting end of power equipment with an automobile starting function, so that the operation assembly is electrically connected with the connecting end of the power equipment to obtain electric energy from the power equipment.

The application also provides an electric wrench system which comprises the electric wrench and power equipment with an automobile starting function, wherein the power equipment comprises a connecting end, and a connecting cavity of the electric wrench is in plug connection with the connecting end of the power equipment.

According to the electric wrench and the electric wrench system, the power supply equipment with the automobile starting function is used for supplying power to the electric wrench, so that a special power supply is not required to be arranged for the electric wrench, the production cost is reduced, and the portability of the electric wrench is also improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an electric wrench system according to an embodiment of the application.

Fig. 2 is an exploded view of an electric wrench system according to an embodiment of the present application.

Fig. 3 is a schematic exploded view of an electric wrench according to an embodiment of the application.

Fig. 4 is a schematic view of a part of elements of an electric wrench in another direction according to an embodiment of the present application.

Fig. 5 is a schematic view of an electric wrench in another direction according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a power supply device according to an embodiment of the present application.

Fig. 7 is a top view of a power supply device in an embodiment of the application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without undue burden, are within the scope of the application.

Furthermore, the following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the application may be practiced. Directional terms, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", etc., in the present application are merely referring to the directions of the attached drawings, and thus, directional terms are used for better, more clear explanation and understanding of the present application, rather than indicating or implying that the apparatus or element being 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 application.

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of an electric wrench system according to an embodiment of the application. Fig. 2 is an exploded view of an electric wrench system according to an embodiment of the application. The electric wrench system 100 includes an electric wrench 10 and a power supply device 32. The power supply device 32 is a power supply device having an automobile starting function. The power supply device 32 includes a body end 325 and a connection end 320, the connection end 320 being disposed on one end of the body end 325. Referring to fig. 3 and 4, the electric wrench 10 includes a housing 11 and a wrench assembly 12, wherein the housing 11 is provided with a receiving cavity 110 and a connecting cavity 112 adjacent to the receiving cavity 110, and the wrench assembly 12 is received in the receiving cavity 110 for performing the function of the electric wrench 10. The connection cavity 112 is configured to plug into the connection end 320 of the power supply device 32, so that the wrench assembly 12 is electrically connected with the connection end 320 of the power supply device 32 to obtain electrical energy from the power supply device 32.

Further, in one embodiment, the connection cavity 112 is removably coupled to the connection end 320 of the power device 32.

Therefore, the power supply device 32 has not only the automobile starting function but also the charger function. When the electric wrench 10 needs to work, it is plugged into the power supply device 32 to obtain electric energy. The portability of the electric wrench 10 is increased without specially providing the electric wrench 10 with a dedicated power source. The power supply device 32 may also serve as a power source for other power tools, such as power sources for power screwdrivers, power inflator pumps, power car washes, power cleaners, electric drills, hammers, grinders, planers, and the like. Of course, the power supply device 32 can also serve as an igniter for ignition of the automobile, so as to serve as an emergency power supply when the starting power supply of the automobile is not powered, and the application scene of the power supply device 32 is diversified.

Alternatively, in other embodiments, the connection cavity 112 is non-removably coupled to the connection end 320 of the power device 32. In this case, the power supply device 32 is provided with an interface dedicated to acting as an igniter for the ignition of the vehicle. Of course, the power supply device 32 is also provided with a power output interface for supplying power to other power tools so as to charge the other power tools.

Further, in one embodiment, referring to fig. 2 again, the housing 11 includes a main body 111 and a holding end 113, and a T-shape is formed between the main body 111 and the holding end 113. The connecting cavity 112 is disposed on the holding end 113, and the power supply device 32 and the holding end 113 are mutually inserted to form a holding part of the electric wrench 10. Thus, the grip end 113 and the power supply device 32 together function as a handle of the electric wrench 10. Therefore, the holding end 113 of the electric wrench 10 does not need to be too long, so that the electric wrench 10 can be reduced in size and convenient to carry.

Alternatively, in one embodiment, the gripping end 113 is inclined at an angle s relative to the main body 111. Specifically, in the present embodiment, the grip end 113 is inclined at about 15 degrees with respect to the main body 111. In other embodiments, the inclination angle of the grip end 113 with respect to the main body 111 is not limited to 15 degrees, but may be other angles. In this way, the electric wrench 10 is facilitated to apply a torsion force to the acted upon object.

Alternatively, in one embodiment, referring to fig. 3, the housing 11 includes a first housing 114 and a second housing 115. The first housing 114 and the second housing 115 are symmetrical. It is understood that in other embodiments, the first housing 114 and the second housing 115 may be asymmetric. The first housing 114 and the second housing 115 are butted against each other to form a hollow cavity. The cavity includes the receiving cavity 110 and the connecting cavity 112. The accommodating cavity 110 is partially disposed on the main body 111, and partially disposed on an end of the grip end 113 near the main body 111. The connecting cavity 112 is arranged on the gripping end 113. Thus, the proper distribution of the receiving cavity 110 and the connecting cavity 112 allows for a proper distribution of the wrench assembly 12 within the housing 11, which is easy to carry about and to hold.

In the prior art, the shell is generally formed by hard plastic and soft plastic together, the forming process is complex, and the production cost is high. In the present application, the first housing 114 and the second housing 115 are integrally formed of hard plastic, which may be, but not limited to, ABS resin, etc. Therefore, the production cost is reduced on the basis of ensuring the strength and the attractive appearance.

Optionally, in one embodiment, a U-shaped decorative frame 116 is further disposed on each of the first housing 114 and the second housing 115. The decorative frame 116 is fastened and fixed with the first housing 114 or the second housing 115, or may be formed in two colors.

Optionally, in one embodiment, referring to fig. 4, the wrench assembly 12 includes a controller 121, a driving member 122, and an operating head 123, wherein the controller 121 is electrically connected to the driving member 122 and is accommodated in the accommodating cavity 110, and the operating head 123 is connected to an output shaft of the driving member 122 and extends from the driving member 122 to the outside of the accommodating cavity 110. Thus, the controller 121 controls the driving member 122 to drive the operation head 123 to rotate, so as to realize the function of the electric wrench.

Further, in the present embodiment, the driving member 122 includes a motor 1221 and a decelerator 1222. The controller 121 is connected to the motor 1221. An output shaft of the motor 1221 is connected to an input shaft of the decelerator 1222. The housing cavity 110 has opposite ends, i.e., a first end and a second end, the first end being an end proximate to the opening of the housing cavity 110, and the second end being an end distal to the opening of the housing cavity 110. The motor 1221 is mounted on the second end of the housing 110 and the decelerator 1222 is mounted on the first end of the housing 110. The operating head 123 is mounted on an output shaft of the reducer 1222 at an end remote from the motor 1221. The controller 121 is electrically connected to the motor 1221. Thus, the rotation of the motor 1221 is controlled by the controller 121, and the rotation speed of the output shaft is controlled by the decelerator 1222.

Optionally, in one embodiment, the wrench assembly 12 further includes a circuit board 124. The circuit board 124 is also disposed within the housing cavity 110 and is located on a side of the motor 1221 adjacent to the power supply device 32. The controller 121 is disposed on the circuit board 124.

Optionally, in one embodiment, referring to fig. 1 to 3, the electric wrench 10 further includes a control key 14, and the control key 14 is electrically connected to the controller 121. In one embodiment, the control key 14 is electrically connected to the controller 121 through the circuit board 124. Further, an opening 1131 is provided on a side of the grip end 113 facing the second end of the housing 11. The control key 14 is disposed in the aperture 1131. It will be appreciated that in other embodiments, the control keys 14 may be provided at other suitable locations on the housing 11. By means of the control button 14, the electric wrench 10 can be rotated forward, or rotated backward, or stopped. Specifically, the control key 14 has a forward key position 141 and a reverse key position 142. The forward rotation key position 141 and the reverse rotation key position 142 are respectively located at opposite ends of the control key 14. It will be appreciated that in other embodiments, the positions of the forward key position 141 and the reverse key position 142 may be reversed. That is, the signal generated when the forward key position 141 of the control key 14 is pressed is a forward signal, and the signal generated when the reverse key position 142 of the control key 14 is pressed is a reverse signal. When the control key 14 does not receive any pressing signal, the control key 14 is in a stopped state. The controller 121 controls the motor 1221 to forward rotate in response to the forward rotation signal to output a forward rotation speed. The controller 121 controls the motor 1221 to reverse in response to the reverse signal to output a reverse rotation speed.

Alternatively, in one embodiment, the magnitudes of the pressing forces on the forward rotation key position 141 and the reverse rotation key position 142 may be positively correlated with the rotational speed of the operation head 123. That is, when the forward rotation key position 141 or the reverse rotation key position 142 is pressed with force, the rotational speed at which the controller 121 controls the motor 1221 to rotate will increase, and conversely, will decrease.

In the prior art, the forward and reverse rotation of the motor is realized by matching two independent keys, namely, one key controls the forward and reverse conversion, and the other key controls the switch, so that the forward and reverse rotation switching can be realized by matching the two independent keys. That is, when the reverse rotation is required, the forward and reverse rotation control key is required to be pressed first, and then the switch control key is required to be pressed. Therefore, compared with the prior art, the forward and reverse rotation switching is simply and directly realized through the forward rotation key position 141 and the reverse rotation key position 142 similar to the seesaw on one control key, and the operation is simpler.

Optionally, in one embodiment, referring to fig. 4 and 5, the wrench assembly 12 further includes a power input interface 125, the power input interface 125 is electrically connected to the controller 121, and the power device 32 is electrically connected to the power input interface 125 when the connection end 320 of the power device 32 extends into the connection cavity 112.

It will be appreciated that the connection between the power input interface 125 and the controller 121 may be a direct connection or an indirect connection. When the power input interface 125 is indirectly connected to the controller 121, a control switch or the like may be further connected between the power input interface 125 and the controller 121, which is not limited herein.

Further, in one embodiment, the power input interface 125 includes a first power input interface 1251 and a second power input interface 1253. In one embodiment, the first power input interface 1251 is a positive terminal and the second power input interface 1253 is a negative terminal. In another embodiment, the first power input interface 1251 is a negative terminal and the second power input interface 1253 is a positive terminal.

Alternatively, the electric wrench 10 may include a communication port for communicating with a power device, wherein in one embodiment, the communication port may include a physical port, as shown in fig. 5, and the electric wrench 10 further includes a first communication port 1255 for transmitting communication signals. The first communication port 1255 is disposed between the first power input interface 1251 and the second power input interface 1253. In another embodiment, the communication port of the electric wrench 10 may also include a software port that is not visible, so that the electric wrench 10 can communicate wirelessly with other devices through the communication port.

Further, in this embodiment, the peripheries of the first communication port 1255 and the second power input interface 1253 form a substantially semicircular circumferential wall 1254, and the circumferential wall 1254 protects the first communication port 1255 and the second power input interface 1253, and of course, the circumferential wall 1254 may also function as a fool-proof device to prevent reverse plug.

Further, in one embodiment, the controller 121 receives a communication signal through the first communication port 1255 and controls the operating state of the electric wrench 10 in response to the communication signal.

For example, the controller 121 obtains a specific parameter value of the power supply device 32 through the first communication port 1255, and the controller 121 determines whether to operate according to the parameter value. Or the controller 121 obtains the state of the power supply device 32 through the first communication port 1255, controls the operation if it is normal, and controls the non-operation if it is abnormal.

Further, in one embodiment, the controller 121 transmits a communication signal to the power device 32 through the first communication port 1255 to control the operation state of the power device 32.

Further, in one embodiment, the controller 121 is further configured to send an identification signal to the power device 32 through the first communication port 1255, so that the power device 32 triggers a corresponding operation mode based on the identification signal.

Further, in one embodiment, the triggering the corresponding operation mode based on the identification signal includes: and performing circuit protection based on the circuit protection threshold corresponding to the identification signal.

Specifically, taking a temperature signal as an example, when the power supply temperature of the electric wrench 10 is too high and there is a risk of being burned, the controller 121 sends a control signal to the power supply device 32 through the first communication port 1255 to control the power supply device 32 to stop supplying power to the electric wrench 10 until the temperature of the electric wrench 10 is reduced to meet the requirement, so that the electric wrench 10 can be prevented from being burned during charging, and the service life of the electric wrench 10 is greatly prolonged. Of course, a heat dissipation fan may also be provided in the electric wrench 10, and when the temperature of the electric wrench 10 is too high and the electric wrench 10 is at risk of burning out when the power supply device 32 supplies power to the electric wrench 10, the temperature signal controls the heat dissipation fan to start so as to dissipate heat of the electric wrench 10.

In the following, a voltage signal is taken as an example, when the voltage or current is too high when the electric wrench 10 is powered, the controller 121 sends a control signal to the power device 32 through the first communication port 1255 to control the power device 32 to stop powering the electric wrench 10 and send an alarm, so as to avoid the influence of overvoltage or overcurrent on the electric wrench 10.

Further, in one embodiment, referring to fig. 3 and 4, the receiving chamber 110 and the connecting chamber 112 are separated by a partition 117. The partition 117 is provided with an opening 1171. The power input interface 125 is disposed in the opening 1171.

Alternatively, in one embodiment, referring again to fig. 3, the inner wall of the connecting cavity 112 is adapted to the outer wall of the connecting end 320 of the power supply device 32. A first guide member 118 is provided on the inner wall of the connecting cavity 112, and the first guide member 118 is configured to cooperate with a second guide member 322 on the power supply device 32 to guide the movement of the power supply device 32 relative to the holding end 113.

Further, in one embodiment, the first guide member 118 has a raised grid shape inside, which meets the strength requirement and reduces the amount of material.

Further, in one embodiment, the first guide member 118 is disposed on an inner wall of the connecting cavity 112, and the first guide member 118 is disposed offset from a center line of the connecting cavity 112 and extends along the insertion and extraction direction of the gripping end 113.

Alternatively, in one embodiment, the first guide 118 may be a protrusion or a recess. Accordingly, the second guide 322 may be a groove or a protrusion. In this embodiment, the first guide member 118 is a protrusion. Accordingly, the second guide 322 is a groove.

Optionally, in one embodiment, referring to fig. 4 to 7, a fastening structure 119 for mating connection with the connection end 320 of the power supply device 32 is provided on the inner wall of the connection cavity 112; when the connection end 320 of the power supply device 32 is plugged into the connection cavity 112 of the housing 11, the fastening structure 119 is used for being matched with the fastening structure 323 on the power supply device 32, so that a stable connection is formed between the electric wrench 10 and the power supply device 32. It will be appreciated that in other embodiments, the snap feature 119 may be replaced with a threaded feature.

Further, referring to fig. 6 and 7, the power supply device 32 will be described in detail below. The power supply device 32 comprises a power supply output interface 321. When the power source device 32 is connected to the electric wrench 10, the power source input interface 125 is electrically connected to the power source output interface 321, and the power source device 32 supplies power to the electric wrench 10 through the power source output interface 321. Thus, the power supply device 32 can supply driving energy for the rotation of the operation head 123. And when the power supply device 32 is not connected with the electric wrench 10 any more, the power supply device 32 can serve as a mobile power supply to charge the external device through the power supply output interface 321, or the power supply output interface of the power supply device 32 can also be connected with the storage battery through the battery clamp to output current to assist the storage battery in starting the automobile.

In this embodiment, the power input interfaces 125 and the power output interfaces 321 are in one-to-one correspondence, and the number of the two interfaces is one. It will be appreciated that the power input interfaces 125 and the power output interfaces 321 may not be in one-to-one correspondence, i.e., the number of power input interfaces 125 is greater than or less than the number of power output interfaces 321. It should be understood that the present application is not limited to the number of the power input interfaces 125 and the power output interfaces 321, and may be one or more.

Optionally, the power input interface 125 and the power output interface 321 may be selected from various interfaces such as CP 3500. The application is not limited to the type of power input interface 125 and power output interface 321.

Alternatively, the power input interface 125 of the electric wrench 10 may be the same type of interface as the input interface of the battery clamp, so that the power supply device 32 may supply power to the electric wrench 10 or assist in starting the vehicle through the same power output interface 321.

The power output interface 321 includes a first power output interface 3211, a second power output interface 3212, and a second communication port 3213, where the first power output interface 3211 is connected to the first power input interface 1251, the second power output interface 3212 is connected to the second power input interface 1253, and the second communication port 3213 is connected to the first communication port 1255.

When the power output interface 321 of the power supply device 32 is connected to the power input interface 125 of the electric wrench 10, the first power output interface 3211 is connected to the first power input interface 1251, the second power output interface 3212 is connected to the second power input interface 1253, and the second communication port 3213 is connected to the first communication port 1255. The connection of the first power output interface 3211 to the first power input interface 1251 and the connection of the second power output interface 3212 to the second power input interface 1253 form a power path between the electric wrench 10 and the power supply apparatus 32, through which the power supply apparatus 32 supplies power to the electric wrench 10. The connection of the second communication port 3213 and the first communication port 1255 forms a signal path between the electric wrench 10 and the power supply device 32, through which the power supply device 32 outputs various signals to the electric wrench 10. The signal may be, but is not limited to, a temperature signal, a cell over temperature signal, or a low voltage energy protection signal, etc. Taking the temperature signal as an example for illustration, when the power supply device 32 has a risk of burning out when the temperature is too high when the power supply device 32 supplies power to the electric wrench 10, the temperature signal controls the power supply device 32 to stop supplying power to the electric wrench 10 until the temperature of the power supply device 32 is reduced to meet the requirement, so that the power supply device 32 can be prevented from being burned out when the power supply device 32 supplies power to the electric wrench 10, and the service life of the power supply device 32 is greatly prolonged. Of course, a heat dissipation fan (not shown) may be disposed in the electric wrench 10, and the temperature signal controls the heat dissipation fan to start to dissipate heat of the power supply device 32 when the power supply device 32 is too high to burn out the power supply device 32 when the power supply device 32 supplies power to the electric wrench 10.

The port types of the second communication port 3213 and the first communication port 1255 are not specifically limited in the present application.

It will be appreciated that the first power output interface 3211 and the first power input interface 1251 are corresponding positive interfaces, and the second power output interface 3212 and the second power input interface 1253 are corresponding negative interfaces. Of course, the first power output interface 3211 and the first power input interface 1251 may be corresponding negative interfaces, and the second power output interface 3212 and the second power input interface 1253 may be corresponding positive interfaces, which is not limited by the present application.

In this embodiment, the end surface of the connection end 320 is provided with a first groove 3201 and a second groove 3202, the first groove 3201 and the second groove 3202 are arranged at intervals, the shapes of the first groove 3201 and the second groove 3202 are different, and/or the inner diameters of the first groove 3201 and the second groove 3202 are different; the first power output interface 3211 is disposed in the first groove 3201, the second power output interface 3212 and the second communication port 3213 are disposed in the second groove 3202, the second power output interface 3212 and the second communication port 3213 are disposed at intervals in the second groove 3202, and the second communication port 3213 is disposed between the first power output interface 3211 and the second power output interface 3212. The design of the first groove 3201 and the second groove 3202 prevents the first power output interface 3211 from mistakenly touching the second power input interface 1253 and/or the second power output interface 3212 from mistakenly touching the first power input interface 1251 when the first power output interface 3211 is connected with the first power input interface 1251 and the second power output interface 3212 is connected with the second power input interface 1253, so that the power supply of the electric wrench 10 is prevented from being stopped due to short circuit by the power supply device 32, the power supply device 32 is prevented from being burnt due to short circuit, and the service life of the power supply device 32 is prolonged. In addition, the second power output interface 3212 and the second communication port 3213 are arranged in the second groove 3202 at intervals, and have different shapes and/or different inner diameters, so that the anti-fool function can be achieved, the situation that the first power input interface 1251 of the electric wrench 10 is connected with the second power output interface 3212 of the power supply device 32 and the second power input interface 1253 of the electric wrench 10 is connected with the first power output interface 3211 of the power supply device 32 is avoided, and the safety of the electric wrench 10 during use is improved. It is understood that the second communication port 3213 may be disposed in the first recess 3201, and the second communication port 3213 and the first power output port 3211 are disposed at a distance in the first recess 3201.

As shown in fig. 6 and 7, the power supply device 32 is optionally further provided with a charging interface 327, the charging interface 327 being used for charging the power supply device 32 or the load device. The user just can charge for power supply unit 32 through interface 327 that charges to power supply unit 32 circulated use avoids the user to carry too much power supply unit 32 when carrying electric spanner 10 out, lightens the user's heavy burden, and the user of being convenient for carries electric spanner 10 out. In this embodiment, the charging interface 327 includes a Type-C interface, so that the power supply device 32 may not only charge through the charging interface 327, but also charge a load device such as a mobile phone as a mobile charger by outputting a voltage through the charging interface 327. It is to be understood that the present application is not limited in particular to the Type of interface of charging interface 327, and charging interface 327 may also include a USB interface such as a Type-a interface or other types of interfaces such as a DC interface.

In the present embodiment, the charging interface 327 is provided on an end surface of the connection terminal 320. It will be appreciated that the charging interface 327 may also be provided on the end surface of the body end 325 facing away from the connection end 320 or at other locations, as the application is not limited in this regard.

As shown in fig. 6 and 7, the power supply device 32 is optionally further provided with an electricity quantity display key 328 and at least one display lamp 329 provided on the peripheral surface of the main body end 325. The power display button 328 may be coupled to a display light 329, the display light 329 being used to display the inventory of the power supply apparatus 32. When the power supply device 32 is in sufficient stock, the user presses the power display key 328, and the display lamp 329 emits light; when the power supply device 32 is in shortage, the user presses the power display button 328, and the display lamp 329 does not emit light. Thus, the user can judge whether the stock of the power supply device 32 is sufficient by observing whether the display lamp 329 emits light or not, and the display lamp is intuitive and convenient and easy to observe. Or the power display button 328 and the display lamp 329 may be connected to the controller 121, and the controller 121 controls the light emitting state of the display lamp 329 based on the condition of the power in the power supply apparatus 32 in response to the pressing signal of the power display button 328.

In the present embodiment, the number of display lamps 329 is four. Four display lamps 329 are provided on the peripheral wall of the second connection part 325 to be exposed to the outside. When the user presses the power display button 328, the user can determine the stock of the power supply device 32 by the number of lights emitted from the display lamp 329. Specifically, when the number of light emission of the display lamp 329 is zero, it represents that the power supply apparatus 32 is in shortage, and cannot supply power to the electric wrench 10 or other load apparatus; when the number of the display lamps 329 to emit light gradually increases from zero to four, the stock representing the power supply apparatus 32 gradually increases; when the number of light emission of the display lamp 329 is four, the stock representing the power supply apparatus 32 tends to be saturated. It will be appreciated that the present application is not specifically limited to the number of display lamps 329, and that the number of display lamps 329 may be one or more.

It will be appreciated that the display lamp 329 may also be provided on an end surface of the body end 325 or at other locations of the power supply device 32, so long as the display lamp 329 can be exposed to the outside of the power supply device 32, which is not particularly limited by the present application.

It is understood that the power display button 328 may also be disposed on the end surface of the connection end 320 or at other locations of the power device 32, which is not limited by the present application.

The above description of specific embodiments is intended to describe and illustrate the technical solutions of the present application, but is not limited to the embodiments of the present application. Any person skilled in the art, within the scope of the disclosure of the present patent, can equally substitute or change the technical solution and the conception of the present patent, and belongs to the protection scope of the present patent.

Claims (18)

1. The electric wrench is characterized by comprising a shell and a wrench assembly, wherein the shell is provided with a containing cavity and a connecting cavity adjacent to the containing cavity, and the wrench assembly is arranged in the containing cavity; the connecting cavity is used for connecting a connecting end of power equipment with an automobile starting function, so that the spanner component is electrically connected with the connecting end of the power equipment to obtain electric energy from the power equipment.
2. The electric wrench according to claim 1, wherein the housing includes a main body portion and a grip end, the connection cavity is provided on the grip end, and the power supply device and the grip end are mutually plugged to form a grip portion of the electric wrench.
3. The electric wrench of claim 2, wherein the housing includes a first housing and a second housing that are butted together in opposite directions to form a hollow cavity including the receiving cavity and the connecting cavity, the receiving cavity being partially disposed in the body portion, partially disposed on an end of the gripping end adjacent the body portion, and the connecting cavity being disposed on the gripping end.
4. The electric wrench of claim 2, wherein the wrench assembly includes a controller, a driving member, and an operating head, the controller being electrically connected to the driving member and received in the receiving cavity, the operating head extending from the driving member to an exterior of the receiving cavity.
5. The electric wrench of claim 4, wherein the wrench assembly further comprises a power input interface electrically connected to the controller, the power device being electrically connected to the power input interface when the connection end of the power device is plugged into the connection cavity.
6. The electric wrench of claim 5, further comprising a communication port for transmitting communication signals.
7. The electric wrench of claim 6, wherein the power input interface includes a first power input interface and a second power input interface, the communication port being disposed between the first power input interface and the second power input interface.
8. The electric wrench of claim 6, wherein the controller receives a control signal through the communication port and controls an operating state of the electric wrench in response to the control signal.
9. The electric wrench of claim 6, wherein the controller transmits a control signal to the power supply device through the communication port to control an operation state of the power supply device.
10. The electric wrench of claim 6, wherein the controller is further configured to send an identification signal to the power device through the communication port to cause the power device to trigger a corresponding mode of operation based on the identification signal.
11. The electric wrench of claim 10, wherein the triggering of the corresponding operation mode based on the identification signal includes: and performing circuit protection based on the circuit protection threshold corresponding to the identification signal.
12. The electric wrench of claim 5, wherein a partition is further provided in the housing, the partition dividing the receiving cavity and the connecting cavity, an opening is provided in the partition, and the power input interface is provided in the opening.
13. The electric wrench as claimed in claim 2, wherein a first guide is provided on an inner wall of the connection cavity, the first guide being adapted to cooperate with a second guide on the power supply device.
14. The electric wrench as claimed in claim 13, wherein the first guide member is disposed offset from a center line of an inner wall of the connection chamber and extends in a direction of insertion and extraction of the grip end.
15. The electric wrench as claimed in claim 13, wherein a snap structure for being cooperatively connected with the connection end of the power supply device is provided on an inner wall of the connection cavity; when the connecting end of the power supply equipment is inserted into the connecting cavity of the shell, the clamping structure is used for being matched with the clamping hook structure on the power supply equipment to form stable connection.
16. The electric wrench of claim 4, further comprising a control button electrically connected to the controller; the control key is provided with a forward rotation key position and a reverse rotation key position, and the forward rotation key position and the reverse rotation key position are respectively positioned at two opposite ends of the control key; the signal generated when the forward key position of the control key is pressed is a forward signal, and the signal generated when the reverse key position of the control key is pressed is a reverse signal; the controller responds to the forward rotation signal to control the driving piece to forward rotate so as to output forward rotation speed; the controller controls the driving member to reverse in response to the reverse rotation signal to output a reverse rotation speed.
17. The electric wrench of claim 16, wherein the magnitude of the pressing force on the forward and reverse key positions is positively correlated with the rotational speed of the operating head.
18. An electric wrench system comprising the electric wrench of any one of claims 1-17 and a power supply device having an automotive starting function, the power supply device comprising a connection end, the connection cavity of the electric wrench being plug-in connected with the connection end of the power supply device.