Universal type opening electric wrench

Abstract

The utility model relates to the technical field of electric wrenches, and discloses a universal type opening electric wrench which comprises a wrench body, and the wrench body comprises a driving piece. The clamping assembly comprises a mounting seat, a rotating wheel and a clamping tool, the rotating wheel is rotatably arranged on the mounting seat and connected with the driving part, the clamping tool is detachably arranged on the rotating wheel, an opening groove communicated with the outside is formed in the rotating wheel, the clamping tool comprises a clamping groove matched with a workpiece in shape, and the opening groove is communicated with the opening groove. And the clamping groove is of a hollow structure and is provided with a first notch longitudinally aligned with the open groove, and when the driving piece drives the rotating wheel to rotate, the clamping tool rotates synchronously and drives the workpiece clamped with the clamping groove to rotate synchronously. The universal type opening electric wrench is simple in structure, portable and easy to replace.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric wrenches, and in particular relates to a universal open-end electric wrench. Background Art

[0002] Wrenches, as common manual or power-driven tools, are widely used to tighten or loosen fasteners such as screws and nuts. They can be broadly categorized into two types: open-end wrenches with notches and closed-end wrenches without notches. However, both manual and power-driven open-end wrenches have limitations in practical use. In particular, tightening or loosening workpieces of varying shapes and sizes often requires the use of different tool heads or specialized wrenches. This not only increases the weight of the tool carried by the operator but also increases the cost of the wrench, thereby increasing operating costs. Utility Model Content

[0003] The purpose of the utility model is to provide a universal open-end electric wrench with a simple structure, portability and easy replacement in order to solve the above problems in the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions, a universal open-end electric wrench, comprising:

[0005] A wrench body, the wrench body including a driving member;

[0006] The clamping assembly includes a mounting seat, a rotating wheel rotatably mounted on the mounting seat and connected to the driving member, and a clamping tool detachably mounted on the rotating wheel, wherein the rotating wheel is provided with an open groove connected to the outside, and the clamping tool includes a clamping groove adapted to the shape of the workpiece, the clamping groove is a hollow structure, and has a first notch longitudinally aligned with the open groove. When the driving member drives the rotating wheel to rotate, the clamping tool rotates synchronously and drives the workpiece engaged with the clamping groove to rotate synchronously.

[0007] In the above-mentioned universal open-end electric wrench, a receiving groove is provided on the rotating wheel, the receiving groove extends axially along the rotating wheel, the opening groove extends toward the center line of the receiving groove and penetrates the receiving groove axially along the rotating wheel, and the clamping tool is detachably arranged in the receiving groove.

[0008] In the above-mentioned universal open-end electric wrench, there are two groups of accommodating grooves, which are arranged along the axial direction of the rotating wheel, and a partition is provided between the two groups of accommodating grooves. The open groove is provided on the partition and passes through the two groups of accommodating grooves respectively along the axial direction of the rotating wheel.

[0009] In the above-mentioned universal open-end electric wrench, the driving member is connected to the rotating wheel through a gear assembly, and gear teeth meshing with the gear assembly are circumferentially arranged on the outer wall of the rotating wheel.

[0010] In the above-mentioned universal open-end electric wrench, the gear assembly is rotatably disposed on the mounting seat, and includes a power gear connected to the output end of the driving member, and a driven gear respectively meshed with the power gear and the rotating wheel, and the driven gear is provided with two groups, which are arranged in a left-right structure between the rotating wheel and the power gear.

[0011] In the above-mentioned universal open-end electric wrench, the mounting seat is further provided with a plurality of limiting members arranged along the circumference of the rotating wheel, the limiting members have a limiting portion rotatably connected to the rotating wheel, and the limiting portion forms an axial limit for the rotating wheel.

[0012] In the above-mentioned universal open-end electric wrench, the limiting portion includes a first limiting surface and a second limiting surface arranged along the axial direction of the rotating wheel, the first limiting surface and the second limiting surface are respectively fitted with the outer wall of the rotating wheel, and there is a gap between the first limiting surface and the second limiting surface that is adapted to the height of the gear teeth.

[0013] In the above-mentioned universal open-end electric wrench, the clamping groove is coaxial with the rotating wheel, and includes a plurality of arc-shaped recesses arranged in a ring shape and connected in sequence, and the two ends of the connected arc-shaped recesses are respectively connected to the first notch.

[0014] In the above-mentioned universal open-end electric wrench, the clamping tool also includes a plurality of first mounting holes arranged along the circumference of the clamping groove, the first mounting holes pass through the clamping tool, and the partition is provided with a plurality of second mounting holes corresponding one-to-one to the first mounting holes, the second mounting holes pass through the partition.

[0015] In the above-mentioned universal open-end electric wrench, the mounting base includes a detachable connecting base plate and a protective cover, the rotating wheel and the gear assembly are rotatably arranged on the base plate, the protective cover forms a covering shape for the gear assembly, the driving member is connected to the gear assembly through the protective cover, and the base plate and the protective cover are both provided with a first through hole for the clamping tool to pass through, and a second notch adapted to the first notch.

[0016] Compared to existing technologies, the present invention offers the following advantages: by configuring the clamping assembly as a rotatable rotary wheel and a removable clamping fixture attached to the rotary wheel, users can replace different types of clamping fixtures as needed to accommodate workpieces of varying shapes and sizes, thereby increasing the versatility and flexibility of the tool. Compared to replacing specialized tool heads or wrenches, the present clamping fixture is not only portable but also reduces tool purchase costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic structural diagram of a universal open-end electric wrench according to an embodiment of the present utility model.

[0018] Figure 2 The figure is an exploded view of a universal open-end electric wrench according to an embodiment of the present utility model.

[0019] Figure 3 It is a schematic diagram of the local structure of an embodiment of the present utility model.

[0020] Figure 4 It is a cross-sectional view of the clamping tool in the embodiment of the present utility model.

[0021] Figure 5 2 is a cross-sectional view of the rotating wheel in an embodiment of the present utility model.

[0022] Figure 6 Schematic diagram of the connection structure between the rotating wheel and the limiting member in an embodiment of the present utility model.

[0023] Figure 7 Schematic diagram of the working state of an embodiment of the present utility model.

[0024] In all the drawings, the same reference numerals represent the same technical features, specifically: 100, wrench body; 110, shell; 120, driving member; 200, mounting seat; 210, base plate; 220, protective cover; 221, second through hole; 230, first through hole; 240, second notch; 300, rotating wheel; 310, accommodating groove; 320, opening groove; 330, partition; 331, second mounting hole; 340, gear teeth; 400, clamping tool; 410, clamping groove; 411, arc-shaped recess; 420, first notch; 430, first mounting hole; 500, gear assembly; 510, power gear; 520, driven gear; 600, limit member; 610, first limit surface; 620, second limit surface; 700, flange; 800, workpiece; 810, screw; 820, nut. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] like Figures 1 to 7 As shown, a universal open-end electric wrench includes a wrench body 100, a mounting base 200, a rotating wheel 300, a clamping tool 400, a gear assembly 500, a limiter 600 and a flange 700.

[0028] like Figures 1 to 7 As shown, a universal open-end electric wrench comprises:

[0029] The wrench body 100 includes a driving member 120;

[0030] The clamping assembly includes a mounting base 200, a rotating wheel 300 rotatably mounted on the mounting base 200 and connected to the driving member 120, and a clamping fixture 400 detachably mounted on the rotating wheel 300. The rotating wheel 300 is provided with an open slot 320 communicating with the outside. The clamping fixture 400 includes a clamping slot 410 adapted to the shape of the workpiece 800. The clamping slot 410 is a hollow structure and has a first notch 420 longitudinally aligned with the open slot 320. When the driving member 120 drives the rotating wheel 300 to rotate, the clamping fixture 400 rotates synchronously and drives the workpiece 800 engaged with the clamping slot 410 to rotate synchronously, thereby tightening or loosening the workpiece 800. The detachable design of the clamping fixture 400 allows users to replace different models of clamping fixtures 400 according to their needs to adapt to workpieces 800 of different shapes and sizes, thereby improving the versatility and flexibility of the tool. Compared with replacing a special tool head or wrench, the clamping tool 400 is not only portable but also reduces the cost of purchasing tools.

[0031] In this embodiment, the workpiece 800 includes a screw rod 810 and a nut 820 rotatably disposed on the screw rod 810 .

[0032] Specifically, if Figures 1 to 7 As shown, in this embodiment, the wrench body 100 serves as a power drive component of the electric wrench, which includes a shell 110 and a driving member 120 built into the shell 110. The output end of the driving member 120 extends out of the shell 110 to be connected to the clamping assembly and drive the clamping assembly to rotate to tighten or loosen the workpiece 800.

[0033] In this embodiment, a flange 700 is further provided between the wrench body 100 and the clamping assembly. One side of the flange 700 is detachably connected to the clamping assembly, and the other side is detachably connected to the wrench body 100. The flange 700 has a connecting hole for the output end of the driving member 120 to pass through, which effectively ensures the stability of the connection between the wrench body 100 and the clamping assembly, while also improving the convenience of replacing and maintaining the wrench body 100 or the clamping assembly.

[0034] In this embodiment, the clamping assembly includes a mounting base 200, a rotating wheel 300 rotatably arranged in the mounting base 200 and connected to the driving member 120, and a clamping tool 400 detachably arranged on the rotating wheel 300. On the one hand, the clamping tool 400 can rotate synchronously with the rotation of the rotating wheel 300 to tighten or loosen the workpiece 800. On the other hand, it can be replaced according to usage needs, thereby improving the versatility of the electric wrench.

[0035] In this embodiment, the mounting base 200 includes a detachably connected base plate 210 and a protective cover 220. The rotating wheel 300 and the gear assembly 500 are rotatably arranged on the base plate 210. The protective cover 220 forms a covering for the gear assembly 500 to prevent debris from entering the gear assembly 500, thereby effectively ensuring the stability of the rotation of the rotating wheel 300.

[0036] In this embodiment, both the base plate 210 and the protective cover 220 are provided with a first through-hole 230 for the clamping fixture 400 to pass through, and a second notch 240 that mates with the first notch 420. The design of the first through-hole 230 allows for quick positioning of the clamping fixture 400, improving the efficiency of its installation. The design of the second notch 240 allows the screw 810 of the workpiece 800 to be inserted into the clamping fixture 400 from the side, allowing the electric wrench to handle the need to tighten or loosen the nut 820 when both ends of the screw 810 are closed.

[0037] In this embodiment, the protective cover 220 is further provided with a second through hole 221 for the output end of the driving member 120 to pass through, so that the output end of the driving member 120 can smoothly extend into the protective cover 220 and connect with the gear assembly 500.

[0038] In this embodiment, the rotating wheel 300 is provided with a U-shaped opening trough 320 communicating with the outside, for allowing the screw 810 to extend horizontally from the side into the clamping fixture 400. The rotating wheel 300 is also provided with an annular receiving groove 310 for mounting the clamping fixture 400. The receiving groove 310 extends axially along the rotating wheel 300, and the opening trough 320 extends from the edge of the rotating wheel 300 toward the centerline of the receiving groove 310 and penetrates the receiving groove 310 axially along the rotating wheel 300. The provision of the receiving groove 310 enables rapid positioning of the installation position of the clamping fixture 400, making the installation of the clamping fixture 400 simpler and more convenient, and improving installation efficiency.

[0039] In this embodiment, the receiving grooves 310 are provided in two groups, arranged along the circumference of the rotating wheel 300, and a partition 330 is provided between the two groups of receiving grooves 310. The opening groove 320 is provided on the partition 330 and passes through the two groups of receiving grooves 310 along the circumference of the rotating wheel 300. By providing two groups of receiving grooves 310 and separating them with the partition 330, on the one hand, two groups of different types of clamping fixtures 400 can be installed, which enriches the optionality of the clamping fixtures 400, reduces the need for replacement of the clamping fixtures 400, and improves work efficiency; on the other hand, two groups of the same type of clamping fixtures 400 can be installed, so that the workpiece 800 can be fixed on both the upper and lower surfaces of the clamping assembly, effectively improving operational efficiency and convenience.

[0040] Preferably, in this embodiment, the clamping fixture 400 is fixed in the receiving groove 310 by screws.

[0041] In order to drive the rotating wheel 300, in this embodiment, the driving member 120 is connected to the rotating wheel 300 through the gear assembly 500, and the outer wall of the rotating wheel 300 is circumferentially arranged with gear teeth 340 that mesh with the gear assembly 500, which effectively ensures the effective and smooth transmission of power and improves the overall performance of the electric wrench.

[0042] In this embodiment, the gear assembly 500 is rotatably mounted on the mounting base 200 via screws. The gear assembly 500 includes a power gear 510 connected to the output end of the driving member 120, and driven gears 520 that mesh with the power gear 510 and the rotating wheel 300, respectively. The driven gears 520 are provided in two sets, arranged in a left-right configuration between the rotating wheel 300 and the power gear 510, and form a triangular layout with the power gear 510. The design of the power gear 510 and the two sets of driven gears 520 ensures that when the first notch 420 rotates to any one of the driven gears 520, the other driven gear 520 will still mesh with the rotating wheel 300 and drive the rotating wheel 300 to rotate, ensuring efficient and stable power transmission and effectively preventing the rotating wheel 300 from stalling due to contact between the first notch 420 and the driven gear.

[0043] In this embodiment, the mounting seat 200 is further provided with a plurality of limiting members 600 arranged along the circumference of the rotating wheel 300. The limiting member 600 has a limiting portion rotatably connected to the rotating wheel 300, and the limiting portion forms an axial limit for the rotating wheel 300, effectively controlling the circumferential position of the rotating wheel 300 and ensuring the stable operation of the rotating wheel 300.

[0044] Preferably, in this embodiment, there are four limiting members 600, which are rotatably connected to the mounting base 200 through screws. When the first notch 420 is rotated to any one of the limiting members 600, the remaining limiting members 600 can still limit the longitudinal movement of the rotating wheel 300, effectively improving the reliability of the limitation.

[0045] In this embodiment, the limiting portion includes a first limiting surface 610 and a second limiting surface 620 arranged along the axial direction of the rotating wheel 300. The first limiting surface 610 and the second limiting surface 620 are respectively in contact with the outer wall of the rotating wheel 300, thereby limiting the longitudinal upward or downward movement of the rotating wheel 300. There is a gap between the first limiting surface 610 and the second limiting surface 620 that is highly adapted to the gear teeth 340, which effectively avoids the gap with the gear teeth 340 and ensures the stability of the rotation of the rotating wheel 300.

[0046] Preferably, in this embodiment, the first limiting surface 610 and the second limiting surface 620 are arranged at an angle and connected by a cylinder, and there is a gap between the cylinder and the gear teeth 340. This design not only ensures the fit between the limiting member 600 and the rotating wheel 300, but also avoids interference with the rotation of the rotating wheel 300.

[0047] To clamp and rotate the nut 820, in this embodiment, a removable clamping fixture 400 is provided on the rotating wheel 300. The clamping fixture 400 is annular and has a hollow clamping groove 410 that matches the shape of the nut 820, which is used to clamp the nut 820 for tightening or loosening. The clamping fixture 400 has a first notch 420 that is longitudinally aligned with the opening groove 320. The first notch 420 extends from the edge of the clamping fixture 400 toward the centerline of the clamping groove 410 and axially penetrates the clamping fixture 400 to communicate with the clamping groove 410. The first notch 420 cooperates with the opening groove 320 and the second notch 240 to allow the screw 810 to extend from the side into the accommodating groove 310.

[0048] Preferably, in this embodiment, the diameters of the first notch 420 , the second notch 240 and the opening groove 320 are all larger than the diameter of the screw 810 .

[0049] In this embodiment, the clamping groove 410 is coaxial with the rotating wheel 300 and is detachably connected to the rotating wheel 300 by a screw. The size of the clamping groove 410 is adapted to the size of the nut 820. Preferably, in this embodiment, two groups of clamping grooves 410 with the same or different structures are provided on the rotating wheel 300 to achieve clamping of different types of nuts 820, or to achieve clamping of the nuts 820 on both the upper and lower surfaces.

[0050] In this embodiment, the clamping groove 410 includes a plurality of arc-shaped recesses 411 arranged in a ring shape and connected in sequence. The two ends of the arc-shaped recesses 411 are respectively connected to the first notch 420 to adapt to the shape of the nut 820, thereby enhancing the clamping ability of the clamping tool 400 on the nut 820 and improving the stability of the operation.

[0051] In this embodiment, the clamping fixture 400 further includes a plurality of first mounting holes 430 arranged circumferentially along the clamping groove 410. The first mounting holes 430 extend through the clamping fixture 400. Furthermore, the partition plate 330 is provided with a plurality of second mounting holes 331 corresponding one-to-one with the first mounting holes 430. The second mounting holes 331 extend through the partition plate 330, so that both clamping fixtures 400 can be fixed to the rotating wheel 300 via screws. The cooperation between the first mounting holes 430 and the second mounting holes 331 ensures a reliable connection between the clamping fixture 400 and the rotating wheel 300, thereby improving the overall performance of the electric wrench.

[0052] It should be noted that, in the present utility model, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0053] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0054] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A universal open-end electric wrench, characterized in that: include: A wrench body, the wrench body including a driving member; The clamping assembly includes a mounting seat, a rotating wheel rotatably provided on the mounting seat and connected to the driving member, and a clamping tool detachably provided on the rotating wheel, the rotating wheel is provided with an open groove connected to the outside, the clamping tool includes a clamping groove adapted to the shape of the workpiece, the clamping groove is a hollow structure, and has a first notch longitudinally aligned with the open groove. When the driving member drives the rotating wheel to rotate, the clamping tool rotates synchronously and drives the workpiece engaged with the clamping groove to rotate synchronously.

2. A universal open-end electric wrench according to claim 1, characterized in that: The rotating wheel is provided with a receiving groove, which extends axially along the rotating wheel. The opening groove extends toward the center line of the receiving groove and penetrates the receiving groove axially along the rotating wheel. The clamping tool is detachably arranged in the receiving groove.

3. A universal open-end electric wrench according to claim 2, characterized in that: There are two groups of accommodating grooves, which are arranged along the axial direction of the rotating wheel, and a partition is provided between the two groups of accommodating grooves. The opening groove is provided on the partition and passes through the two groups of accommodating grooves along the axial direction of the rotating wheel.

4. A universal open-end electric wrench according to claim 2, characterized in that: The driving member is connected to the rotating wheel through a gear assembly, and gear teeth meshing with the gear assembly are circumferentially arranged on the outer wall of the rotating wheel.

5. The universal open-end electric wrench according to claim 4, characterized in that: The gear assembly is rotatably mounted on the mounting base, and includes a power gear connected to the output end of the driving member, and a driven gear respectively meshed with the power gear and the rotating wheel. The driven gears are provided in two groups and are arranged in a left-right structure between the rotating wheel and the power gear.

6. The universal open-end electric wrench according to claim 4, characterized in that: The mounting seat is further provided with a plurality of limiting members arranged along the circumference of the rotating wheel. The limiting members have a limiting portion rotatably connected to the rotating wheel, and the limiting portion forms an axial limit for the rotating wheel.

7. The universal open-end electric wrench according to claim 6, characterized in that: The limiting portion includes a first limiting surface and a second limiting surface arranged along the axial direction of the rotating wheel. The first limiting surface and the second limiting surface are respectively in contact with the outer wall of the rotating wheel, and there is a gap between the first limiting surface and the second limiting surface that is adapted to the height of the gear teeth.

8. The universal open-end electric wrench according to claim 3, characterized in that: The clamping groove is coaxial with the rotating wheel, and includes a plurality of arc-shaped recesses arranged in a ring shape and connected in sequence, and the two ends of the connected arc-shaped recesses are respectively connected to the first notch.

9. The universal open-end electric wrench according to claim 8, characterized in that: The clamping tool also includes a plurality of first mounting holes arranged along the circumference of the clamping groove, the first mounting holes pass through the clamping tool, and the partition is provided with a plurality of second mounting holes corresponding to the first mounting holes one by one, the second mounting holes pass through the partition.

10. The universal open-end electric wrench according to claim 4, characterized in that: The mounting base includes a detachable connecting base plate and a protective cover. The rotating wheel and the gear assembly are rotatably arranged on the base plate. The protective cover covers the gear assembly. The driving member is connected to the gear assembly through the protective cover. The base plate and the protective cover are both provided with a first through hole for the clamping tool to pass through, and a second notch adapted to the first notch.

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