Electric wrench

Abstract

The utility model relates to the field of fastening tools, and provides an electric wrench which comprises a wrench body, an insulating rod, a clamping remote controller and a handheld remote controller. A connecting piece is arranged on the wrench body, a through groove is formed in the connecting piece, the through groove is provided with an arc inner wall and straight inner walls located on the two sides of the arc inner wall, a plurality of protruding parts are arranged on the side wall of the connecting piece in the radial direction based on the circle center of the arc inner wall, and a controller is further arranged in the wrench body. The insulating rod is provided with a clamping piece, the clamping piece is provided with a clamping part corresponding to the protruding part, and the clamping piece can be detachably connected at multiple different angles based on the clamping part and the protruding part. The clamping remote controller is provided with a buckle structure, and the buckle structure is matched with the insulating rod. The handheld remote controller and the clamping remote controller are both in communication connection with the controller. The angle of the wrench body can be adjusted through the connecting piece and the clamping piece, and the wrench body can be operated by holding the insulating rod with a hand through the clamping remote controller.

Description

Technical Field

[0001] The utility model relates to the technical field of fastening tools, in particular to an electric wrench. Background Art

[0002] With the continuous development and technological progress in the industrial field, higher requirements are put forward for the safety and efficiency of mechanical equipment operation and maintenance. Especially in high-voltage live working, traditional manual wrenches have problems such as complex operation and great potential safety hazards. To solve these problems, there is an urgent need for an electric wrench that can be remotely controlled at a safe distance. Content of the Utility Model

[0003] To solve the technical problems of complex operation and great potential safety hazards existing in the prior art, an embodiment of the utility model provides an electric wrench. The technical solution is as follows:

[0004] An electric wrench is provided, which includes: a wrench body, an insulating rod, a clamping remote control and a hand-held remote control;

[0005] A connecting piece is arranged on the wrench body, and the connecting piece has a through groove. The through groove has an arc inner wall and flat inner walls on both sides of the arc inner wall. Based on the center of the arc inner wall, a plurality of protruding parts are arranged on the side wall of the connecting piece along the ray direction, and a controller is also arranged in the wrench body;

[0006] A clamping part is arranged on the insulating rod, and a clamping portion corresponding to the protruding part is arranged on the clamping part. The clamping part can be detachably connected at a plurality of different angles based on the clamping portion and the protruding part;

[0007] A snap structure is arranged on the clamping remote control, and the snap structure is matched with the insulating rod;

[0008] Both the hand-held remote control and the clamping remote control are communicatively connected to the controller.

[0009] Optionally, the clamping part has a cylindrical body part for sleeving on the end of the insulating rod, and a pin hole is arranged on the cylindrical body part.

[0010] Optionally, the clamping portion includes a convex block corresponding to the gap between the protruding parts, and the convex block is used for inserting into the gap between the protruding parts.

[0011] Optionally, the clamping portion includes a groove corresponding to the protruding part.

[0012] Optionally, the electric wrench further includes an extension rod, one end of which is connected to the connecting piece at a variable angle, and the other end is connected to the clamping part.

[0013] Optionally, the snap structure includes a clamp and a positioning hole. The clamp is used to be sleeved on the insulating rod, and both ends of the clamp are used to be connected to the positioning hole.

[0014] Optionally, the snap-on remote control further includes a handle, and a trigger switch is arranged on the handle.

[0015] Optionally, the electric wrench further includes a battery holder and a rechargeable battery;

[0016] The battery holder is arranged on the top of the wrench body, and the rechargeable battery is detachably connected to the battery holder.

[0017] Optionally, the housing of the wrench body is made of aluminum material and has heat dissipation holes.

[0018] Optionally, a torque sensor is further arranged in the wrench body for real-time monitoring of the output torque information and feeding back the torque information to the controller.

[0019] The beneficial effects brought by the technical solution provided by the embodiment of the present invention at least include:

[0020] The electric wrench provided by the embodiment of the present invention enables the wrench body to be detachably connected to the insulating rod at multiple different angles through the connecting member on the wrench body and the locking member on the insulating rod. This structure facilitates the adjustment of the angle of the wrench body. By providing a snap-on remote control, it is convenient to hold the insulating rod to operate the wrench body. Moreover, by providing a hand-held remote control, the wrench body can be remotely operated, so as to facilitate remote operation of the electric wrench for construction at a safe distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 is a schematic structural diagram of an electric wrench provided by an embodiment of the present invention;

[0023] Figure 2 is a schematic structural diagram of a connecting member 110 of an electric wrench provided by an embodiment of the present invention;

[0024] Figure 3 is a schematic structural diagram of a locking member 210 of an electric wrench provided by an embodiment of the present invention;

[0025] Figure 4 It is a schematic structural diagram of a wrench body 100 of an electric wrench provided by an embodiment of the present utility model;

[0026] Figure 5 It is a front view structural diagram of a wrench body 100 of an electric wrench provided by an embodiment of the present utility model;

[0027] Figure 6 It is a sectional view structural diagram of a wrench body 100 of an electric wrench provided by an embodiment of the present utility model;

[0028] Figure 7 It is a schematic structural diagram of an extension rod 500 of an electric wrench provided by an embodiment of the present utility model;

[0029] Figure 8 It is a schematic structural diagram of a buckle structure 310 of an electric wrench provided by an embodiment of the present utility model;

[0030] Figure 9 It is a schematic structural diagram of a handle 313 of an electric wrench provided by an embodiment of the present utility model.

[0031] Reference numerals:

[0032] 100, wrench body; 110, connecting piece; 120, through groove; 121, arc inner wall; 122, flat inner wall; 130, protruding part; 140, controller; 150, standard socket; 160, DC motor; 170, star gear assembly, 180, impact hammer head; 190, battery holder; 191, power switch; 192, rechargeable battery; 193, outer shell; 194, heat dissipation holes;

[0033] 200, insulating rod; 210, locking piece; 211, locking part; 212, cylindrical part; 213, pin hole;

[0034] 300, clamping remote control; 310, buckle structure; 311, clamp; 312, positioning hole; 313, handle; 314, trigger switch;

[0035] 400, hand-held remote control;

[0036] 500, extension rod. Detailed implementation manners

[0037] The technical solutions in the present utility model will be described below with reference to the accompanying drawings.

[0038] In the embodiments of the present invention, words such as "exemplarily" and "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "example" in the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of the word "example" is intended to present the concept in a specific way. In addition, in the embodiments of the present invention, the meaning expressed by "and / or" can be both, or it can be either of the two.

[0039] In order to make the technical problems to be solved, technical solutions and advantages of the present invention more clear, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0040] The utility model provides an electric wrench. Figure 1 It is a structural schematic diagram of an electric wrench provided by an embodiment of the utility model; Figure 2 It is a structural schematic diagram of a connecting member 110 of an electric wrench provided by an embodiment of the utility model; Figure 3 This is a schematic diagram of the structure of a locking member 210 of an electric wrench provided in an embodiment of the utility model, see Figures 1 to 3 The electric wrench comprises: a wrench body 100 , an insulating rod 200 , a snap-on remote control 300 and a handheld remote control 400 .

[0041] Among them, the key components such as the motor, the transmission mechanism and the controller 140 are integrated inside the wrench body 100. The controller 140 is responsible for receiving instructions from the card-connected remote control 300 or the handheld remote control 400, and controlling the start, stop, forward and reverse rotation and torque output of the motor. In addition, a connecting member 110 is provided on the wrench body 100, and a through groove 120 is provided on the connecting member 110, and the through groove 120 has an arc inner wall 121 and a straight inner wall 122 located on both sides of the arc inner wall 121, that is, the shape of the through groove 120 is a combination of an arc and a straight inner wall, wherein the arc inner wall 121 is convenient for matching with fasteners such as bolts, and the straight inner wall 122 ensures the stability of the connection. Based on the center of the arc inner wall 121, a plurality of protrusions 130 are provided on the side wall of the connecting member 110 along the ray direction, and the shape of the protrusion 130 can be set as needed, and this embodiment is not limited to this. For example, it can be formed by equally dividing a circular ring.

[0042] The insulating rod 200 is made of materials with high strength and high insulation performance, effectively isolating the electrical contact risk between the electric wrench body 100 and the operator. The length and cross-sectional dimensions of the insulating rod 200 can be selected according to actual needs to adapt to different working environments. A clamping member 210 is provided on the insulating rod 200, and a clamping portion 211 corresponding to the convex portion 130 is provided on the clamping member 210. The clamping member 210 can be detachably connected to the convex portion 130 at multiple different angles based on the clamping portion 211 and the convex portion 130, so that the included angle between the wrench body 100 and the insulating rod 200 can be adjusted between 0° and 180°. That is to say, through the cooperation of the clamping portion 211 and the convex portion 130, the insulating rod 200 can be stably connected to the wrench body 100 and can achieve detachable connections at multiple different angles. This design enables the operator to easily adjust the angle of the wrench body 100 as needed to adapt to various complex working environments.

[0043] A snap-on remote control 300 is provided with a snap structure 310, and the snap structure 310 is matched with the insulating rod 200, so that the snap-on remote control 300 can be connected to any position of the insulating rod 200 to operate the electric wrench from different distances. When remote control of the electric wrench is required, the operator can fix the snap-on remote control 300 on the insulating rod 200 through the snap structure 310, thereby realizing remote control of the electric wrench. This design allows the operator to operate the electric wrench while holding it, avoiding the need to separately fix the wrench body 100 and improving the convenience of operation.

[0044] The above-mentioned handheld remote control 400 is convenient for the operator to carry around. Both the handheld remote control 400 and the snap-on remote control 300 are communicatively connected to the controller 140. Specifically, both the handheld remote control 400 and the snap-on remote control 300 are built-in with wireless communication modules, capable of establishing a stable communication connection with the controller 140 inside the wrench body 100. By sending instructions to the controller 140, the handheld remote control 400 and the snap-on remote control 300 can remotely control functions such as starting, stopping, forward and reverse rotation, and torque adjustment of the electric wrench.

[0045] The electric wrench provided by the embodiment of the present utility model enables the wrench body 100 to be detachably connected to the insulating rod 200 at multiple different angles through the connecting member 110 on the wrench body 100 and the clamping member 210 on the insulating rod 200. This structure facilitates the adjustment of the angle of the wrench body 100. By providing the snap-on remote control 300, it is convenient to hold the insulating rod 200 to operate the wrench body 100. Moreover, by providing the handheld remote control 400, the wrench body 100 can be remotely operated, thus facilitating remote operation of the electric wrench for construction at a safe distance.

[0046] Further, Figure 4It is a schematic structural diagram of a wrench body 100 of an electric wrench provided by an embodiment of the present utility model; Figure 5 It is a front view structural diagram of a wrench body 100 of an electric wrench provided by an embodiment of the present utility model; Figure 6 It is a sectional structural diagram of a wrench body 100 of an electric wrench provided by an embodiment of the present utility model. Please refer to Figures 4 to 6 . A plurality of standard sleeves 150 with different diameters are detachably arranged at the output end of the wrench body 100 for matching different parts to be screwed. A DC motor 160, a star gear assembly 170 and an impact hammer head 180 are also arranged inside the wrench body 100 to provide power.

[0047] Furthermore, the cross-sectional shape of the insulating rod 200 can be set as required. For example, it can be circular for easy processing; it can also be regular hexagon for easy gripping and not easy to slip.

[0048] Please continue to refer to Figure 3 . In an embodiment provided by the present utility model, the locking member 210 has a cylindrical portion 212. The cylindrical portion 212 is used for sleeving on the end of the insulating rod 200. The cylindrical portion 212 can be tightly and stably sleeved on the end of the insulating rod 200. Moreover, a pin hole 213 is provided on the cylindrical portion 212. Correspondingly, a through hole is also provided on the insulating rod 200. The insulating rod 200 and the locking member 210 can be detachably connected by a pin. This design ensures that the connection between the locking member 210 and the insulating rod 200 is both firm and reliable, avoiding accidental situations caused by loose connection during operation.

[0049] The structure of the above-mentioned locking portion 211 can be various. Two of them will be taken as examples for illustration below.

[0050] The first type: In an embodiment provided by the present utility model, the locking portion 211 includes a convex block corresponding to the gap between the convex portions 130 on the connecting member 110. That is to say, the shape of the convex block on the locking portion 211 is the same as the gap between the convex portions 130 on the connecting member 110. The convex block is used for inserting into the gap between the convex portions 130. During connection, by inserting the convex block on the locking portion 211 into different gaps, the included angle of the connection between the two can be changed. Through this structure, the locking member 210 can be detachably connected to the connecting member 110 at multiple different angles based on the locking portion 211 and the convex portions 130.

[0051] Second type: In an embodiment provided by the present utility model, the locking portion 211 includes a groove corresponding to the protruding portion 130 on the connecting member 110. When connecting, by inserting the protruding portion 130 on the connecting member 110 into different grooves, the included angle between the two can be changed. With this structure, it can be realized that the locking member 210 is detachably connected to the locking portion 211 and the protruding portion 130 at multiple different angles.

[0052] Figure 7 is a schematic structural diagram of an extension rod 500 of an electric wrench provided by an embodiment of the present utility model. Please refer to Figure 7 In an embodiment provided by the present utility model, the electric wrench further includes an extension rod 500. One end of the extension rod 500 is connected to the connecting member 110 at a variable angle, and the other end is connected to the locking member 210.

[0053] Specifically, the connection structure between one end of the extension rod 500 and the connecting member 110 can be a plum blossom joint or other shapes. This embodiment does not limit this. For example, one end of the extension rod 500 can be provided with a protrusion consistent with the other end. Correspondingly, the connecting member 110 is also provided with a corresponding convex block or groove, so as to realize a variable-angle connection. Based on this structure, the flexibility of the connection structure between the connecting member 110 and the locking member 210 is improved, which is convenient for the wrench body 100 to extend into spaces under different conditions for operation.

[0054] The above joint design can conveniently connect and disassemble the insulating rod 200 and the wrench body 100. The plum blossom joint can provide a reliable connection and allows adjustment of the direction of the wrench body 100 to make it more adaptable to various working scenarios and angle requirements. This design can simplify the process of replacing the wrench body 100 and improve the flexibility and efficiency of operation.

[0055] Figure 8 is a schematic structural diagram of a buckle structure 310 of an electric wrench provided by an embodiment of the present utility model; Figure 9 is a schematic structural diagram of a handle 313 of an electric wrench provided by an embodiment of the present utility model. Please refer to Figures 8 to 9 In an embodiment provided by the present utility model, the buckle structure 310 includes a clamp 311 and a positioning hole 312. The clamp 311 is used to be sleeved on the insulating rod 200, and both ends of the clamp 311 are used to be connected to the positioning hole 312.

[0056] The main function of the above clamp 311 is to be tightly sleeved on the insulating rod 200. Specifically, the inner diameter of the clamp 311 can be slightly larger than the outer diameter of the insulating rod 200 to ensure that the clamp 311 can easily slide to the required position.

[0057] The positioning hole 312 can be directly provided on the insulating rod 200, or a bracket can be provided on the insulating rod 200, and the positioning hole 312 is formed on the bracket, thereby providing a stable anchor point for the clamp 311 to prevent it from freely sliding or rotating on the insulating rod 200. The specific shape and size of the positioning hole 312 will determine its fixing method. Common fixing means include using screws, pins, riveting or welding, etc. These fixing methods should ensure firm and reliable connection, while being convenient for installation and disassembly.

[0058] In an embodiment provided by the present utility model, the clamping remote control 300 further includes a handle 313. Based on this handle 313, the entire clamping remote control 300 device is more convenient to carry and move. Moreover, a trigger switch 314 is provided on the handle 313, enabling the operator to directly hold the handle 313 for operation, thereby controlling the wrench body 100 without worrying about the device slipping or being inconvenient to carry. Additionally, the above-mentioned positioning hole 312 can also be provided on the handle 313.

[0059] Among them, a trigger switch 314 is provided inside the handle 313 of the clamping remote control 300. By the operator's finger pulling the trigger, the wrench body 100 can be remotely activated. This structure not only conforms to the operating habits of common non-remote electric wrenches but is also very convenient for the operator to use. Additionally, a direction switch is provided outside the handle 313 to facilitate changing the torque output direction of the wrench body 100. Of course, an energy storage unit can also be provided inside the clamping remote control 300, and a corresponding charging port is also provided on the handle 313 of the clamping remote control 300.

[0060] Among them, multiple buttons can be provided on the remote control, which are respectively used to control the wrench body 100 to perform functions such as forward rotation, reverse rotation, jogging, and continuous movement.

[0061] In an embodiment provided by the present utility model, the electric wrench further includes a battery holder 190 and a rechargeable battery 192. The user only needs to use a supporting charger to charge the battery, which is both environmentally friendly and economical compared to traditional disposable batteries. The battery holder 190 is provided at the top of the wrench body 100. Such a design facilitates the operator to quickly identify and operate the replacement process of the rechargeable battery 192, and at the same time ensures the balance and stability of the wrench during use. The rechargeable battery 192 is detachably connected to the battery holder 190. This characteristic enables the user to quickly replace the new battery when the battery runs out of power without waiting for charging, greatly improving the work efficiency.

[0062] Furthermore, a power switch 191 is provided on the battery holder 190 to control the energization of the wrench body 100.

[0063] In an embodiment provided by the present utility model, the housing 193 of the wrench body 100 is made of aluminum material and has heat dissipation holes 194.

[0064] On the one hand, compared with other metals such as iron or steel, aluminum material has a lighter mass but maintains a relatively high strength, which makes the whole wrench more portable and easier to carry and operate during use. On the other hand, aluminum material has good thermal conductivity and heat dissipation performance, which can effectively conduct and dissipate internal heat. Moreover, the heat dissipation holes 194 also have the function of heat dissipation, which can quickly conduct the heat from the inside of the wrench to the housing 193 and dissipate it through the heat dissipation holes 194, thus avoiding the influence of overheating on the working efficiency and service life of the device.

[0065] A torque sensor is also provided inside the wrench body 100 for real-time monitoring of the output torque information and feedback of the torque information to the controller 140. Specifically, the working principle of the torque sensor is usually based on strain electrical measurement technology. In the core part of the sensor, special torsion strain gauges are used to sense torque changes. When the wrench applies torque, the strain gauges will generate resistance changes as the elastic shaft deforms. These resistance changes are converted into voltage signals through a strain bridge, thereby achieving accurate measurement of the torque.

[0066] Furthermore, when the remote-controlled wrench is in live operation, it can automatically adjust the output torque when encountering resistance or jamming, avoiding damage to the device or injury to the operator. This function can automatically adjust the output torque according to the actual working conditions, ensuring the safety and efficiency of the operation.

[0067] The electric wrench provided by the embodiment of the present utility model enables the wrench body 100 to be detachably connected to the insulating rod 200 at multiple different angles through the connecting member 110 on the wrench body 100 and the locking member 210 on the insulating rod 200. This structure facilitates the adjustment of the angle of the wrench body 100. By providing the clamping remote control 300, it is convenient to hold the insulating rod 200 to operate the wrench body 100. Moreover, by providing the hand-held remote control 400, the wrench body 100 can be remotely operated, thus facilitating the remote operation of the electric wrench for construction at a safe distance.

[0068] It should be understood that the term "and / or" in this article is only a description of the association relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. Here, A and B can be singular or plural. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after, but it may also represent an "and / or" relationship, which can be specifically understood with reference to the context before and after.

[0069] In the present utility model, "at least one" means one or more, and "a plurality" means two or more. "At least one of the following items (pieces)" or a similar expression means any combination of these items, including any combination of single items (pieces) or plural items (pieces). For example, at least one of a, b, or c may represent: a, b, c, a - b, a - c, b - c, or a - b - c, where a, b, and c may be single or multiple.

[0070] It should be understood that in various embodiments of the present utility model, the magnitudes of the sequence numbers of the above - mentioned processes do not imply the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present utility model.

[0071] As described above, the above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. An electric wrench, characterized in that: The electric wrench comprises: a wrench body, an insulating rod, a snap-on remote control and a handheld remote control; The wrench body is provided with a connecting piece, the connecting piece has a through groove, the through groove has an arc inner wall and straight inner walls located on both sides of the arc inner wall, based on the center of the arc inner wall, a plurality of protrusions are provided on the side wall of the connecting piece along the ray direction, and the wrench body is also provided with a controller; The insulating rod is provided with a locking piece, and the locking piece is provided with a locking portion corresponding to the protrusion, and the locking piece can be detachably connected at a plurality of different angles based on the locking portion and the protrusion; The snap-on remote control is provided with a snap-on structure, and the snap-on structure matches the insulating rod; The handheld remote control and the card-connected remote control are both connected to the controller for communication.

2. The electric wrench according to claim 1, characterized in that: The locking piece has a cylindrical body portion, which is used to be sleeved on the end of the insulating rod, and a pin hole is arranged on the cylindrical body portion.

3. The electric wrench according to claim 1, characterized in that: The locking portion includes a convex block corresponding to the gap between the protruding portions, and the convex block is used to be inserted into the gap between the protruding portions.

4. The electric wrench according to claim 1, characterized in that: The locking portion includes a groove corresponding to the protruding portion.

5. The electric wrench according to claim 1, characterized in that: The electric wrench also includes an extension rod, one end of which is connected to the connecting piece at a variable angle, and the other end of which is connected to the locking piece.

6. The electric wrench according to claim 1, characterized in that: The buckle structure comprises a clamp and a positioning hole. The clamp is used to be sleeved on the insulating rod, and two ends of the clamp are used to be connected to the positioning hole.

7. The electric wrench according to claim 1, characterized in that: The card-connected remote control also includes a handle, on which a trigger switch is arranged.

8. The electric wrench according to claim 1, characterized in that: The electric wrench also includes a battery holder and a rechargeable battery; The battery seat is arranged on the top of the wrench body, and the rechargeable battery is detachably connected to the battery seat.

9. The electric wrench according to claim 1, characterized in that: The shell of the wrench body is made of aluminum material and has heat dissipation holes.

10. The electric wrench according to claim 1, characterized in that: The wrench body is also provided with a torque sensor for real-time monitoring of output torque information and feeding back the torque information to the controller.

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